CPFP Bitcoin News

Interesting change allowing for "Reciever pays" TXN fees.

I'm excited about a new change in bitcoin-qt v20.0 (unreleased) allowing for the propagation of zero fee (0 sat/b) TXNs. Previously this was nerfed by the minRelayTxFee requirement. This would allow the receiver to set the fees (indirectly) by simply chaining a CPFP TXN to the end of it. Might work something like this.
  1. You place a bet at a BTC betting site.
  2. If you win, the payout is a raw TXN hex string.
  3. You broadcast the raw TXN along with a second "child" that pays the fee.
  4. Betting site is now no longer paying fees on winning bets.
Could offer a lot of solutions to exchanges that require a "withdraw fee" claiming that they need to pay the miners. This would allow users to request a zero-fee raw-hex withdraw transaction allowing the user to pay the fees themselves.
For the more technical user this would offer up a lot of neat possiblities.
submitted by brianddk to Bitcoin [link] [comments]

BlockSettle Terminal - new light-weight bitcoin wallet with integrated trading model

The BlockSettle Terminal is an open-source desktop wallet that offers integrated non-custodial trading of bitcoin. The wallet is based on goatpig’s continued development of the Armory open-source stack.
Wallet features: • BIP 32 (Hierarchical Deterministic) wallet(s) • Native Segwit, Nested Segwit, Legacy address support • Watching-Only wallets • Offline/Remote signing • Hardware Wallet support (Trezor / Ledger) • Network connectivity through remote or local server • Coin control • RBF/CPFP • Fee control • BIP 39 and Armory seed imports • Built-in blockchain explorer • Armory interoperability
The trading model is a hybrid between centralized and decentralized platforms. In our model, the bitcoin leg is non-custodial (removing custody risk) while the fiat leg is centralized (in order to pool liquidity). Trading is currently limited to testnet while users get acquainted with the model.
Trading features: • Request-for-Quote matching • OTC off exchange reporting • Encrypted chat • Products o Bitcoin vs fiat o Bitcoin vs Coloured Coin (coinjoin trading) o Fiat vs fiat (FX)
Webpage: https://www.blocksettle.com/
Github: https://github.com/BlockSettle/terminal https://github.com/BlockSettle/BlockSettleDB
CTO: goatpig https://bitcointalk.org/index.php?action=profile;u=7811
submitted by BlockSettle to Bitcoin [link] [comments]

BlockSettle Terminal - HW compatible light-weight wallet with integrated trading

The BlockSettle Terminal is an open-source desktop wallet that offers integrated non-custodial trading of bitcoin.
The wallet is based on goatpig’s continued development of the Armory open-source stack and is compatible with Ledger.
Wallet features: • BIP 32 (Hierarchical Deterministic) wallet(s) • Native Segwit, Nested Segwit, Legacy address support • Watching-Only wallets • Offline/Remote signing • Network connectivity through remote or local server • Coin control • RBF/CPFP • Fee control • BIP 39 and Armory seed imports • Built-in blockchain explorer • Armory interoperability
The trading model is a hybrid between centralized and decentralized platforms. In our model, the bitcoin leg is non-custodial (removing custody risk) while the fiat leg is centralized (in order to pool liquidity). Trading is currently limited to testnet while users get acquainted with the model.
Trading features: • Request-for-Quote matching • OTC off exchange reporting • Encrypted chat • Products o Bitcoin vs fiat o Bitcoin vs Coloured Coin (coinjoin trading) o Fiat vs fiat (FX)
Webpage: https://www.blocksettle.com/
Github: https://github.com/BlockSettle/terminal https://github.com/BlockSettle/BlockSettleDB
CTO: goatpig https://bitcointalk.org/index.php?action=profile;u=7811
submitted by BlockSettle to ledger [link] [comments]

So I did a transaction last night...

And I only used 9sats/b because I'm a cheapskate and I don't mind waiting days and days for the transaction to be confirmed. But guess what? Even with 60,000+ unconfirmed transactions last night, my transaction was still able to clear in 6 hours.
Yes, it's still not perfect, but it just confirms that people saying that
Are talking out of their asses. If this was in 2017's bull run, this would've taken more than a week. Not because the developers aren't shilling every single small update on Reddit and Twitter like most crap projects do, it doesn't mean bitcoin isn't being worked on.
submitted by AnotherDayAnotherL to Bitcoin [link] [comments]

BlockSettle Terminal - HW compatible light-weight wallet with integrated trading

The BlockSettle Terminal is an open-source desktop wallet that offers integrated non-custodial trading of bitcoin.
The wallet is based on goatpig’s continued development of the Armory open-source stack and is compatible with Ledger.
Wallet features: • BIP 32 (Hierarchical Deterministic) wallet(s) • Native Segwit, Nested Segwit, Legacy address support • Watching-Only wallets • Offline/Remote signing • Network connectivity through remote or local server • Coin control • RBF/CPFP • Fee control • BIP 39 and Armory seed imports • Built-in blockchain explorer • Armory interoperability
The trading model is a hybrid between centralized and decentralized platforms. In our model, the bitcoin leg is non-custodial (removing custody risk) while the fiat leg is centralized (in order to pool liquidity). Trading is currently limited to testnet while users get acquainted with the model.
Trading features: • Request-for-Quote matching • OTC off exchange reporting • Encrypted chat • Products o Bitcoin vs fiat o Bitcoin vs Coloured Coin (coinjoin trading) o Fiat vs fiat (FX)
Webpage: https://www.blocksettle.com/
Github: https://github.com/BlockSettle/terminal https://github.com/BlockSettle/BlockSettleDB
CTO: goatpig https://bitcointalk.org/index.php?action=profile;u=7811
submitted by BlockSettle to ledgerwallet [link] [comments]

Bitcoin Price Prediction 2020

Bitcoin Price Prediction 2020
Bitcoin is a digital and fully decentralized currency. Decentralization of the network is the main goal of the Bitcoin. The fundamental achievement of bitcoin is its genuine peer-to-peer payment system; no person or even institution was “in charge” of bitcoin.
by StealthEX
Three main ideas were embedded in the Bitcoin code:
• Bitcoin should not be regulated by anyone.
• Its emission should not be infinite.
• The cost of a coin depends on its demand.
The maximum number of bitcoins – 21 million, and the possibility of their extraction were laid in the bitcoin algorithm.
Bitcoin “halving” occurred on 11 May 2020. This means that its miners’ remuneration was halved.

Bitcoin statistics

Source: CoinMarketCap, Data was taken on 19 May 2020.
Current Price $9,672.54
ROI since launch 7,048.96%
Market Cap $177,790,148,642
Market Rank #1
Circulating Supply 18,380,918 BTC
Total Supply 18,380,918 BTC

Bitcoin achievements and future plans

Bitcoin in 2019:

Bitcoin Core released:
• Improved Partially Signed Bitcoin Transaction (PSBT) support and added support for output script descriptors. This allowed it to be used with the first released version of the Hardware Wallet Interface (HWI).
• Implemented the new CPFP carve-out mempool policy, added initial support for BIP158-style compact block filters (currently RPC only), improved security by disabling protocols such as BIP37 bloom filters and BIP70 payment requests by default. It also switches GUI users to bech32 addresses by default.
LND released:
• Support for Static Channel Backups (SCBs) that help users recover any funds settled in their LN channels even if they’ve lost their recent channel state.
• Improved autopilot to help users open new channels, plus built-in compatibility with Lightning Loop for moving funds onchain without closing a channel or using a custodian.
• Added support for using a watchtower to guard your channels when you’re offline.
• Added support for a more extensible onion format, improved backup safety, and improved the watchtower support.
Other:
• Its price has more than doubled.
• For the first time in history Bitcoin was assigned a rating of “A”.
• British court recognized Bitcoin as property.
• The second largest in Germany and ninth in Europe, the Stuttgart Stock Exchange launched Bitcoin spot trading.
• In Russia, for the first time, Bitcoin was added to the authorized capital of a company.
• Bitcoin Named the Best Asset of the Decade by Bank of America Merrill Lynch.

Bitcoin in 2020:

• Focus on the Lightning Network. The continuation of work on c-lightning (Blockstream), Eclair (ACINQ), LND (Lightning Labs) and Rust Lightning to develop the protocol.
• Expectation of the SchnorTaproot softfork in 2020 or 2021 that is improvement in fungibility, privacy, scalability and functionality.
Bitcoin “halving” occurred on 11 May 2020.
• Amid the general crisis caused by coronavirus pandemic (COVID-19) and the depreciation of money, the Bitcoin value is growing.

Bitcoin Technical Analysis

Source: TradingView, Data was taken on 19 May 2020.

Bitcoin Price Prediction 2020

TradingBeasts BTC price prediction

The Bitcoin price is forecasted to reach $8,681 (-10.25%) by the beginning of June 2020. At the end of 2020 BTC price will be $8,345 (-13.72%).

Wallet investor Bitcoin price prediction

Bitcoin price prediction: maximum price by the end of December 2020 $13,559 (+40.19%), a minimum price $7,886 (-18.47%).

DigitalCoinPrice Bitcoin forecast

There will be a positive trend in the future and the BTC might be good for investing. BTC price will be equal to $22,501 at the end of 2020 (+132.63%).

Crypto-Rating BTC price forecast

Based on historical data Bitcoin price will be at $12,272 (+26.87%) in 1 week and $13,338 (+37.90%) in 1 month. Analysis of the cryptocurrency market shows that Bitcoin price may reach $18,679 (+93.11%) by the 1st of January 2021 driven by the potential interest from large institutional investors and more regulation expected in the field of digital currencies.

Buy Bitcoin at StealthEX

Bitcoin (BTC) is available for exchange on StealthEX with a low fee. Follow these easy steps:
✔ Choose the pair and the amount for your exchange. For example ETH to BTC.
✔ Press the “Start exchange” button.
✔ Provide the recipient address to which the coins will be transferred.
✔ Move your cryptocurrency for the exchange.
✔ Receive your coins.
The views and opinions expressed here are solely those of the author. Every investment and trading move involves risk. You should conduct your own research when making a decision.
Original article was posted on https://stealthex.io/blog/2020/05/19/bitcoin-price-prediction-2020/
submitted by Stealthex_io to u/Stealthex_io [link] [comments]

You can call you a Bitcoiner if you know/can explain these terms...

03/Jan/2009
10 Minutes
10,000 BTC Pizza
2016 Blocks
21 Million
210,000 Blocks
51% Attack
Address
Altcoin
Antonopoulos
Asic
Asic Boost
Base58
Batching
Bech32
Bit
Bitcoin Cash
Bitcoin Improvement Proposal (BIP)
Bitcoin SV
Bitmain
Block
Block height
Block reward
Blockchain
Blockexplorer
Bloom Filter
Brain Wallet
Buidl
Change Address
Child pays for parent (CPFP)
Coinbase (not the exchange)
CoinJoin
Coinmarketcap (CMC)
Colored Coin
Confirmation
Consensus
Custodial Wallet
Craig Wright
David Kleinman
Difficulty
Difficulty adjustment
Difficulty Target
Dogecoin
Dorian Nakamoto
Double spend
Elliptic Curve Digital Signature Algorithm (ECDSA)
Ethereum
Faketoshi
Fork
Full Node
Gavin Andresen
Genesis Block
Getting goxed
Halving
Hard Fork
Hardware Wallet
Hash
Hashing
Hierarchical Deterministic (HD) Wallet
Hodl
Hot Wallet
Initial Coin Offering (ICO)
Initial Exchange Offering (IEO)
Ledger
Light Node
Lightning
Litecoin
Locktime
Mainnet
Malleability
Master Private Key
Master Public Key
Master Seed
mBTC
Mempool
Merkle Tree
Mining
Mining Farm
Mining Pool
Mixing
MtGox
Multisig
Nonce
Not your keys,...
Opcode
Orphan block
P2PKH
P2SH
Paper Wallet
Peers
Pieter Wuille
Premining
Private key
Proof of Stake (PoS)
Proof of Work (PoW)
Pruning
Public key
Pump'n'Dump
Replace by Fee (RBF)
Ripemd160
Roger Ver
sat
Satoshi Nakamoto
Schnorr Signatures
Script
Segregated Witness (Segwit)
Sha256
Shitcoin
Sidechain
Signature
Signing
Simplified Payment Verification (SPV)
Smart Contract
Soft Fork
Stratum
Syncing
Testnet
Transaction
Transaction Fees
TransactionId (Txid)
Trezor
User Activated Soft Fork (UASF)
Utxo
Wallet Import Format (WIF)
Watch-Only Address
Whitepaper
List obviously not complete. Suggestions appreciated.
Refs:
https://bitcoin.org/en/developer-glossary https://en.bitcoin.it/wiki/Main_Page https://www.youtube.com/channel/UCgo7FCCPuylVk4luP3JAgVw https://www.youtube.com/useaantonop
submitted by PolaT1x to Bitcoin [link] [comments]

Andreas Antonopoulos' depiction of the day he became aware of the donations that made him a millionaire

I'm not sure if this already has been posted here, but I just came across this post from A. Antonopoulos' Patreon page (it's a public entry posted on 16th of December. The readability and formatting is better there btw):
Edit: direct link to the post: https://www.patreon.com/posts/emotional-15912702
On December 6th, my life changed trajectory... again. I went to sleep on a wave of positive messages and support from the bitcoin community, in response to a letter I had posted on Patreon titled “In defense of optimism” that had leaked to Reddit. I had spent the day reading messages of support pouring in on Twitter, Patreon, and email, literally thousands of them. It was a life-affirming experience. Like everyone else on social media, the messages I receive are not always kind and supportive. Often the critical messages and trolls are far louder than the supporters. Our brains don't evaluate praise and criticism in equal measure - it's easy to believe the criticism and see the praise as undeserved. That’s why each little message of support makes a difference, each one helps me ignore the critics and see the impact of my work. In addition to all of the written messages, people were signing up to support me on Patreon and some were even sending bitcoin to my donation address. By the time I went to sleep, I was filled with gratitude, humbled by the overwhelmingly positive, viral response of the community.
Here’s what happened next...
I wake up on December 7th, the notifications list on my phone was too long to scroll. Hundreds more messages of support had come in while I was asleep.
Then my phone rings and I recognize the number of a dear friend. "Strange," I think. I’m not expecting a call. "Don't open your laptop yet," she says. "You got some big bitcoin donations overnight. Are you sitting down?" I sit down. I open my laptop, I look at the balance in my 1andreas bitcoin donation address.
Surprise, gratitude, fear, shock, joy, elation, anxiety. My emotions achieved a level of volatility that mirrored that of the bitcoin exchange rate. Good thing I was sitting down.
You're probably thinking that between the supportive messages and the large donations, I’d have been celebrating without a care in the world. But I'm a security professional who works in bitcoin. Could I come up with a doomsday scenario to taint this experience? Hold my beer.
I'm in a taxi on the way to the airport. I’m cycling through emotions again, a bit faster now.
Joy, Terror, Tears, Gratitude, Fear, Elation, Dread, Cold Sweat. It's a good thing I'm sitting down. I can't feel my fingers.
Anxiety
Wouldn't it be ironic if I get hacked and this massive donation is stolen the same day it was given? Shudder. That was a real possibility. Funds were sent to a vanity address, posted on my website, which was mainly used to support my habit of giving small amounts of bitcoin to strangers at meetups and conferences. Before December 6th, the address typically received small gifts each month and I emptied it every now and then in a spree of small donations.
Gratitude
I still can’t believe how many people have responded. I had no idea how many people could identify with the feelings expressed “In defense of optimism” and would want to show their support. I’m grateful to be a part of this community.
Fear
This vanity address is secured with a single private key which was stored on my phone in a “hot” wallet, so that I can give away bitcoin at meetups. The address has maximum public visibility and no Segwit (segregated witness) support. My security model just tipped over and I'm freaking out.
Happiness
I’m so happy! This is incredible, unimaginable. My fingers are numb, in a good way. Is this really happening?!?
Cold Sweats
I have to move the funds out. Now. Right now. But I only have this key on a wallet that doesn't handle RBF (replace-by-fee), CPFP (child-pays-for-parent), and it's not a Segwit address. I'm traveling; I’m about to get on two long flights and the mempool is slammed with transactions. Of all the days!
Joy
I’m crying. Tears of joy. This is something most people never get to experience in the most meaningful of careers, a loud acknowledgement from an entire community and financial security. I’m thinking about my family members and close friends who are struggling and overjoyed at the opportunity I now have to help them.
Terror
Then it dawns on me: a perfect nightmare scenario. What if this is considered "income" in the US and I have to pay taxes at a 39.6% rate? Those taxes would be evaluated on the USD value of the donation at the time it was made, at an all-time-high price of bitcoin. If bitcoin's bubble bursts by 50% today, I will owe more taxes than the donation is worth. I will be bankrupt but will owe the IRS and those debts can't be discharged in bankruptcy. I'm going to be in debt for a decade!
Elation
I can HODL! I don’t have to keep selling to pay bills. Patreon has grown too, so I should be able to cover my expenses and build the business with their support. I can really HODL!
[Alarm buzzes on my phone]
“Boarding on Gate D15”. Pack everything back up, run to the gate. Find my seat. Unpack all my electronics. Re-establish connections. No Wifi yet. 3G if I hold my phone just so against the window. We're taking off. No Wifi at all on this flight. 4 hours, offline, me and my thoughts. What is the opposite of a state of mindfulness? Head spinning.
Fear
What if the price crashes. Should I sell some?
Silliness
I'm buying a lambo (I laugh out loud at the thought of that. No, I'd never waste money on something so silly).
Dread
What if the donations had zero fees and will never confirm? What if this was all a cruel joke?
Joy
My dad will be so proud!
[Landed]
Turn on smartphone. Too many notifications. Turn on VPN, Tor. Sync wallet. Too slow. Too slow.
Run to the lounge. Get on Wifi. Fire up VPN, Tor. Start electrum. Import keys. Child-pays-for-parent the stuck transactions, Replace-by-fee new transactions. Careful coin selection. Send to cold storage (so glad I keep an unused cold storage address handy). Overpay fees more than ever before. 2000 satoshi per byte? Fuck yeah. This is the highest priority transaction of my life. 8 agonizing minutes. 1st block. Confirmations ripple down my screen. Exhaling... I hadn't noticed I was holding my breath.
“Boarding gate C51”. Pack everything, run to the gate. Board the plane. Unpack everything. This flight has Wifi. Bet it doesn't work. Yup, it doesn't work. 6.5 hour flight. I'll just read a book. I've read the same paragraph 8 times and don't know what it says. I'll sleep. Nope. Ok fine, I'll fret - seems I'm good at that and nothing else right now.
[Landed]
That was the longest flight ever. Boot up, 4G, VPN, Tor. Sync.... slow, too slow.
ANOTHER GIANT DONATION. WTF! Is this really happening? Is my wallet counting the balance incorrectly? This isn't possible. WTF IS GOING ON?
Joy, Terror, Tears, Gratitude, Fear, Elation, Dread. I’m cycling faster now.
I just emptied my wallet into cold storage and now it's carrying a ridiculous amount again. Boot up, VPN, Tor, Electrum, CPFP, RBF, cold sweat, 1 confirmation. Phew.
I realize that I just conducted the 4 biggest transactions of my life. I'm shaking. Hope I didn't screw anything up.
Finally I get to my hotel. “Long day” doesn’t even begin to describe it. I am grateful, giddy, jetlagged and exhausted, so sleep should come easy, right? Not happening. Two hours of tossing and turning while my mind is racing. In the end I just pass out from exhaustion. I wake up in a state of anxiety.
I open my inbox. I have a dozen interview requests from newspapers, TV, radio. They don’t want to talk about bitcoin. They want to talk about “my story.” It’s never been about “my story” and I’m not about to change that. Denied, denied, denied. That’s it. I’m going offline for a few days. I need time to process everything that has happened over the past couple of days and strategize about what to do next.
There are no words to adequately convey my appreciation, my gratitude.
These are life-changing gifts, but I don’t intend to change my life. I’m highly suspicious and careful about “lifestyle inflation”: I resist any urges to increase my spending as my income increases because as a self-employed entrepreneur I know my income can decrease significantly at any moment.
First, the practical side: For legal and tax reasons the gifts should remain mostly untouched for at least three years. This is a new situation and no one knows for sure how the authorities will characterize it. I wanted to HODL anyway, so that’s fine with me.
Second, and the much more important side, I love what I do. I’m obviously not going to “retire” or slow down. Receiving your messages and support has energized me and I’m excited to do more, much more.
The number of people supporting me on Patreon has grown significantly and with that support I’ll actually be able to do a lot more. And there are many things I want to do: a new website with more materials, in as many formats and languages as possible; more books; an epic tour; and that’s just the beginning! I also plan to grow my team, which serves two goals: I can get help for the things that need to be done, but I can also bring more people success and security with a steady paycheck.
While I’m excited about all of these new projects, I want you to know that the ultimate goal remains the same: to educate as many people as possible about this transformational technology and remain an independent voice, working directly for the community.
A week has passed. The one feeling that keeps returning, among the barrage of feelings, is gratitude. After taking time to process and calm down, the fear and stress is gone and all that is left is gratitude. I am so thankful for all the messages of support. I am so touched to hear stories of how my work has affected others in a positive way. I am thankful for all the donors who rallied behind me to help me in my advocacy and education.

THANKYOUBITCOINCOMMUNITY

Thank you for being so generous, so kind, so supportive; I’ll never forget this experience. Now, back to work!
submitted by TheGreatMuffin to Bitcoin [link] [comments]

Groestlcoin June Development Update & Release!

Another Quarter, Another Release! The Groestlcoin production factory has been working overtime as always in order to deliver even more tech to push Groestlcoin mainstream when the time comes.
There have been many new fantastic wallets and exchanges added to Groestlcoins repertoire over the past 3 months so we will re-cap these before moving on to what is new today.

Recap

What's New

Re-forged: Groestlcoin Samourai

Groestlcoin Samourai is a wallet for the streets. A modern Groestlcoin wallet hand-forged to keep your transactions private, your identity masked, and your funds secure. Its main advantages are its extreme portability and is the most secure Groestlcoin mobile HD wallet.
We've built a wallet that Groestlcoin deserves. If you are looking for a wallet that Silicon Valley will never build, the regulators will never allow, and the VC's will never invest in, this is the perfect wallet for you.
![Groestlcoin Samourai Release Video](http://img.youtube.com/vi/i3WU8Tde8XQ/0.jpg)

Head over to the Groestlcoin Samourai Release Page here for the full release announcement.

New: GroestlImage

Groestlimage turns any file into a mnemonic phrase allowing users to generate Groestlcoin private keys and addresses based on the data URI of the provided file. A picture is worth a thousand Groestls.

Features:

Link

https://groestlcoin.org/groestlimage/

Source Code

https://github.com/Groestlcoin/groestlimage

New: Groestlcoin Core Config Generator

Groestlcoin Core Config Generator is a simple GUI to configure the groestlcoin.conf file – A developers dream tool!
Each configuration option is available via the user interface, grouped by what attributes they affect. For ease of getting started with a new configuration, a variety of preset "node classes" are available on the right-hand-side of the screen. Selecting a preset will load our recommended base configuration for a node fitting that description, at which point you can then tune the configuration at the single option level.

Features

Link

https://config.groestlcoin.org/

Source Code

https://github.com/Groestlcoin/groestlcoin-core-config-generator

New: Groestlcoin Dumb Block Explorer

Dumb Block Explorer is a trivial block explorer written in a single PHP file. Now everybody can run their own block explorer.

Features

Link

https://www.groestlcoin.org/explore

Source Code

https://github.com/Groestlcoin/dumb-block-explorer

New: Groestlcoin SMS Push TX

Groestlcoin Simple Push TX is a server to push Groestlcoin transactions via SMS. Now everybody can send new transactions via SMS if the Internet is not usable (i.e. blocked by government entities or becomes otherwise unavailable).

Features

Source Code

https://github.com/Groestlcoin/smspushtx

Update: Electrum-GRS 3.3.6

Electrum-GRS is Groestlcoins #1 thin-client for Windows, MacOS, Linux and Android, based on a client-server protocol. Supporting multi-sig wallets without the bloat of downloading the entire blockchain.

New Features (Universal)

New Features (Windows, MacOS, Linux)

New Features (Android)

Link

https://github.com/Groestlcoin/electrum-grs/releases/download
https://play.google.com/store/apps/details?id=org.groestlcoin.electrumgrs

Source Code

https://github.com/Groestlcoin/electrum-grs
submitted by Yokomoko_Saleen to groestlcoin [link] [comments]

Some nuances of dealing with fringe Chinese exchanges when dumpting your forked coins: Gate.io, OKEX, btctrade.im... (may add others)

Deposits of some of the forked coins are only available at some fringe Chinese exchanges. I've dealt with a few of them, and here I summarize some inconveniences and problems I met. Hope it helps some.
Gate.io
accepts : BCD
problems: For BTC withdrawals, it chains unconfirmed transactions, some of which have low fees. I'm waiting for about a week for my withdrawal to be confirmed. It depends on a large unconfirmed tx which pays 100 sat/b (too low these days). I copied the raw tx and rebroadcast it myself from time to time. I'm very reluctant to do CPFP on this one, since it would require paying some 0.023 BTC. Woops. (It's a large transaction, paying out to many.)
OKEX.com
accepts SBTC, UBTC
inconvenience sometimes it blocks your withdrawals until it can do a phone verification. If you receive a call from China during Chinese working hours - try to answer it! If you fail to do so, you may need to open a support ticket. Then you'll need to use Google translate (if you can't read Chinese), as parts of their support system are in Chinese only.
btctrade.im
accepts: UBTC
problem: Asks for a rather extensive KYC (photo ID + selfie with it), not prior to a deposit but when attempting withdrawals. Their KYC works though, and they eventually pay out. Edit: what that means is that make sure to pass KYC before depositing anything. The field "detail address" in the form actually means "email you used to register" (go figure how their translation works..)
Another potential problem: they chain unconfirmed transactions. Currently they are 200 sat/byte, which should be ok. But it may become a problem later.
inconvenience Some of their confirmation emails are 100% Chinese and land in the spam folder.
zb.com Requires ID verification which seems to work for Chinese citizens only. Some report them to be selective scammers. I haven't tried this exchange myself.
submitted by berepere to BitcoinAirdrops [link] [comments]

Sooo SegWit is done, the moon is literally within reach, and Roger Ver has cancelled lift off so he can throw a last minute temper tantrum.

WHYYYYY?
SegWit should be at 95% right now. This is non-sense. Big blocks is a shitty idea. We all considered it 1 year ago, and decided against it.
Did anyone send Roger the memo?
XT died, Classic died, and now BU barely has any support. The market doesn't give a shit about big blocks, nor full blocks.. We've been in full rally mode for the last year and a half, breaking new volume highs, all awhile bouncing off the block size limit. However, people are practically crying about 15 cent fees, at the same time the price is near 2 year highs! What gives?
All the tools for overcoming the primary sticking points of bitcoin are about to be widely available.
Need a high transaction rate?
Lightning networks -- Great for decentralized exchanges, Changetip replacement, coinjoin, digital asset markets, gaming/gambing arcades, etc .
Want to expedite your on-chain payment?
Use RBF or CPFP to jump the spam.
Worried about fungibility and being tracked? HI COINBASE!
Use Coinjoin
Tired of ~10 minute confirmations?
Lock some coin into LN and spend it instantly.
SegWit is ready, wallets are being upgraded, applications are being prototyped, lightning networks are flickering, only piece that's missing, is the miners support.
They'll come around once they see the community demanding it. All exchanges, wallets and businesses that rely on large transaction processing, gain a lot by using SegWit transactions, so it's only a matter of time before everyone is ready, and the ball is sitting in the miners court.
The next 6 months are going to be exciting.
Can you imagine what a LN tipping app will be like? We'll literally be able to throw satoshis at each other, instantly without a trusted 3rd party. It's like @changetip but on steroids. The perfect replacement.
Colu looks amazing too. Trustless Asset exchanges. No more Bitfinex hacks!
And of course RSK. The Etheruem killer.
Happy Thanksgiving /bitcoin!
submitted by pizzaface18 to Bitcoin [link] [comments]

Discussion: optimization of mempool fee levels

I'd like to discuss a possible change to the bitcoin core wallet that does not impact consensus rules.
Right now bitcoin core nodes are still the vast majority and over 60% are recent versions of bitcoin core (>16.3)
Say the mempool is like this:
mempool 2 weeks ago
What we can see from this visualisation of the mempool is that there are 5.3 MB of transactions that span from 1 sat per byte to 40 satoshi per byte (we will leave extremely expensive transactions (red color) aside for a second).
That means that we could compress all those transactions into just 6 fee levels:
5 MB with fees from 1 to 5 satoshi per byte
0.3 MB with fees of 6 satoshi per byte.
Instead of 40 satoshy per byte!!
We can achieve this by having bitcoin full nodes not creating or including in their mempool:
transactions that pay more than 1 extra sat/b when compared to the other transactions in the node mempool unless there are already enough tx to fill at least 1block (4000 KWU)
When including transactions in their mempool the nodes would basically start from those paying 1 sat per byte and include those, then move to those paying 2 sat per byte.
After that the nodes would check if there are enough transactions that pay 2 sat/b to fill 1 block (4000KWU). If true then it starts to include the transactions that pay 3 sat/b, if not it stop until there are.
In general I think this would make sure that the mempool grows in a gradual way, without any holes in it like those you can see in the image at 8 sat per bytes where there are very very few transactions.
One possible downside of this is if you have to create an expensive cpfp TX. For this situations you can unlock in your wallet the option to do this, but the default option should be to have this possibility disabled.
The power of a default setting and the incentive that, if the majority of wallets implement this “best practice”, the prices of the mining fees become rational and optimized should hopefully enough to push people to implement something like this in any wallet.
I know and understand that mining fees need to exist and I think that it is right to develop a fee market. But at the same time we should encourage the users of the wallets to not overpay for their tx to get fast confirmations because, not only do they not gain anything personally by doing that, but they also could create a spiral in the price of the mining fees that can damage Bitcoin.
In some ways it is similar to batching. No one can stop a big exchange if they want to send millions of single transactions to each of their customers when they buy or sell. Coinbase did that for quite some time.
But eventually it should become a best practice to batch transactions to minimize the footprint on the bitcoin ecosystem.
Exactly the same for this proposal.
No one can stop you to use your own wallet that let you create a tx that pays double the fees of everyone else and get into the next block. But you could’ve been included anyways by paying just 1 more sat/b than the highest fee level. And by doing that you also don’t make it more expensive for everyone else.
submitted by S3ton to u/S3ton [link] [comments]

After forgetting my wallet password from 4 years ago, I was able to brute force it, recovering 2 BTC. Now I accidentally made a transaction with way too low fees. I want to use the BTC to increase my mum's pension. Is anyone out there able to confirm my transaction?

As stated in the title and as you can see from my post history, 1 month ago, I dind't even have access to my 2 coins. After I set up a meeting with 4 friends (they're all IT), one was able to brute force my pw. You can't imagine how happy I was, especially because I want to surprise my mum with the money. She worked hard all of her life, still her pension is going to be very low.
I know this game normally is played with HODL but as the money is not for me and I can't risk a heavy decrease of value, I want to cash out now.
Yesterday I made a transaction from my bitcoin core wallet to coinbase (1,45 BTC) and as I didnt use the GUI for ages, I forgot to check the fee first. Now it is stuck in orbit and the transaction doesn't proceed as the fee was only (20 sat/b)
You can find the transaction here: https://blockchain.info/de/tx/19f0b1646fcff6606cfb5a468bc504de113437f4224d53a7a7306eeb6c182903
I already tried transaction accellerator services which are free (antpool included) but for now it doesn't seem to have any positive impact on the transaction.
Any help on this is very much appreciated - a donation obviously is guaranteed. If you want to know, which way we used to bruteforce it, I can provide that information to you of course. Please let me know if you need any further information or how I can unstuck the transaction. As far as I read some posts in forums, a CPFP-method doesn't work if I transferred the BTC not to myself but to an exchange service?
tl;dr: Want to increase my mum's pension with my BTC, which I got back through brute-forcing my wallet-pw. Made a transaction yesterday with way too low fees (20 sat/b) which is now stuck. Anyone who is able to confirm my transaction would be a great help. Donation guaranteed!
Thanks to you all guys in advance!
PS: Please don't consider this as a beggar post or similar. I wouldn't mind HODLing but decided that 30k € (Germany) is a decent amount to put into my mother's pension. I invested like 300 € back then so it's not about me getting back a heavy investment. In case you wonder why I didn't transfer all of the 2 BTC - exchange payout limits :)
submitted by bcthrowaway87 to Bitcoin [link] [comments]

History Lesson for new VIA Viacoin Investors

Viacoin is an open source cryptocurrency project, based on the Bitcoin blockchain. Publicly introduced on the crypto market in mid 2014, Viacoin integrates decentralized asset transaction on the blockchain, reaching speeds that have never seen before on cryptocurrencies. This Scrypt based, Proof of Work coin was created to try contrast Bitcoin’s structural problems, mainly the congested blockchain delays that inhibit microtransaction as this currency transitions from digital money to a gold-like, mean of solid value storage. Bitcoin Core developers Peter Todd and Btc have been working on this currency and ameliorated it until they was able to reach a lightning fast speed of 24 second per block. These incredible speeds are just one of the features that come with the implementation of Lightning Network, and and make Bitcoin slow transactions a thing of the past. To achieve such a dramatic improvement in performance, the developers modified Viacoin so that its OP_RETURN has been extended to 80 bytes, reducing tx and bloat sizes, overcoming multi signature hacks; the integration of ECDSA optimized C library allowed this coin to reach significant speedup for raw signature validation, making it perform up to 5 times better. This will mean easy adoption by merchants and vendors, which won’t have to worry anymore with long times between the payment and its approval. Todd role as Chief Scientist and Advisor has been proven the right choice for this coin, thanks to his focus on Tree Chains, a ground breaking feature that will fix the main problems revolving around Bitcoin, such as scalability issues and the troubles for the Viacoin miners to keep a reputation on the blockchain in a decentralized mining environment. Thanks to Todd’s expertise in sidechains, the future of this crypto currency will see the implementation of an alternative blockchain that is not linear. According to the developer, the chains are too unregulated when it comes to trying to establish a strong connection between the operations happening on one chain and what happens elsewhere. Merged mining, scalability and safety are at risk and tackling these problems is mandatory in order to create a new, disruptive crypto technology. Tree Chains are going to be the basis for a broader use and a series of protocols that are going to allow users and developers to use Viacoin’s blockchain not just to mine and store coins, but just like other new crypto currencies to allow the creation of secure, decentralized consensus systems living on the blockchain The commander role on this BIP9 compatible coin’s development team has now been taken by a programmer from the Netherlands called Romano, which has a great fan base in the cryptocurrency community thanks to his progressive views on the future of the world of cryptos. He’s in strong favor of SegWit, and considers soft forks on the chain not to be a problem but an opportunity: according to him it will provide an easy method to enable scripting upgrades and the implementation of other features that the market has been looking for, such as peer to peer layers for compact block relay. Segregation Witness allows increased capacity, ends transactions malleability, makes scripting upgradeable, and reduces UTXO set. Because of these reasons, Viacoin Core 0.13 is already SegWit ready and is awaiting for signaling.
Together with implementation of SegWit, Romano has recently been working on finalizing the implementation of merged mining, something that has never been done with altcoins. Merged mining allows users to mine more than one block chain at the same time, this means that every hash the miner does contributes to the total hash rate of all currencies, and as a result they are all more secure. This release pre-announcement resulted in a market spike, showing how interested the market is in the inclusion of these features in the coin core and blockchain. The developer has been introducing several of these features, ranging from a Hierarchical Deterministic key (HD key) generation that allows all Viacoin users to backup their wallets, to a compact block relay, which decreases block propagation times on the peer to peer network; this creates a healthier network and a better baseline relay security margin. Viacoin’s support for relative locktime allows users and miners to time-lock a transaction, this means that a new transaction will be prevented until a relative time change is achieved with a new OP code, OP_CHECKSEQUENCEVERITY, which allows the execution of a script based on the age of the amount that is being spent. Support for Child-Pays-For-Parent procedures in Viacoin has been successfully enabled, CPFP will alleviate the problem of transactions that stuck for a long period in the unconfirmed limbo, either because of network bottlenecks or lack of funds to pay the fee. Thanks to this method, an algorithm will selects transactions based on federate inclusive unconfirmed ancestor transaction; this means that a low fee transaction will be more likely to get picked up by miners if another transaction with an higher fee that speeds its output gets relayed. Several optimizations have been implemented in the blockchain to allow its scaling to proceed freely, ranging from pruning of the chain itsel to save disk space, to optimizing memory use thanks to mempool transaction filtering. UTXO cache has also been optimization, further allowing for significant faster transaction times. Anonymity of transaction has been ameliorated, thanks to increased TOR support by the development team. This feature will help keep this crypto currency secure and the identity of who works on it safe; this has been proven essential, especially considering how Viacoin’s future is right now focused on segwit and lightning network . Onion technology used in TOR has also been included in the routing of transactions, rapid payments and instant transaction on bi directional payment channels in total anonymity. Payments Viacoin’s anonymity is one of the main items of this year’s roadmap, and by the end of 2017 we’ll be able to see Viacoin’s latest secure payment technology, called Styx, implemented on its blockchain. This unlinkable anonymous atomic payment hub combines off-the-blockchain cryptographic computations, thanks to Viacoin’s scriptin functionalities, and makes use of security RSA assumptions, ROM and Elliptic Curve digital signature Algorithm; this will allow participants to make fast, anonymous transfer funds with zero knowledge contingent payment proof. Wallets already offer strong privacy, thanks to transactions being broadcasted once only; this increases anonymity, since it can’t be used to link IPs and TXs. In the future of this coin we’ll also see hardware wallets support reaching 100%, with Trezor and Nano ledger support. These small, key-chain devices connect to the user’s computer to store their private keys and sign transactions in a safe environment. Including Viacoin in these wallets is a smart move, because they are targeted towards people that are outside of hardcore cryptocurrency users circle and guarantees exposure to this currency. The more casual users hear of this coin, the faster they’re going to adopt it, being sure of it’s safety and reliability. In last October, Viacoin price has seen a strong decline, probably linked to one big online retailer building a decentralized crypto stock exchange based on the Counterparty protocol. As usual with crypto currencties, it’s easy to misunderstand the market fluctuations and assume that a temporary underperforming coin is a sign of lack of strength. The change in the development team certainly helped with Viacoin losing value, but by watching the coin graphs it’s easy to see how this momentary change in price is turning out to be just one of those gentle chart dips that precede a sky rocketing surge in price. Romano is working hard on features and focusing on their implementation, keeping his head low rather than pushing on strong marketing like other alt coins are doing. All this investment on ground breaking properties, most of which are unique to this coin, means that Viacoin is one of those well kept secret in the market. Minimal order books and lack of large investors offering liquidity also help keep this coin in a low-key position, something that is changing as support for larger books is growing. As soon as the market notices this coin and investments go up, we are going to see a rapid surge in the market price, around the 10000 mark by the beginning of January 2018 or late February. Instead of focusing on a public ICO like every altcoin, which means a sudden spike in price followed by inclusion on new exchanges that will dry up volume, this crypto coin is growing slowly under the radar while it’s being well tested and boxes on the roadmap get checked off, one after the other. Romano is constantly working on it and the community around this coin knows, such a strong pack of followers is a feature that no other alt currency has and it’s what will bring it back to the top of the coin market in the near future. His attitude towards miners that are opposed to SegWit is another strong feature to add to Viacoin, especially because of what he thinks of F2Pool and Bitmain’s politics towards soft forks. The Chinese mining groups seem scared that once alternative crypto coins switch to it they’re going to lose leveraging power for what concerns Bitcoin’s future and won’t be able to speculate on the mining and trading market as much as they have been doing in the past, especially for what concerns the marketing market.
It’s refreshing to see such dedication and releases being pushed at a constant manner, the only way to have structural changes in how crypto currencies work can only happen when the accent is put on development and not on just trying to convince the market. This strategy is less flashy and makes sure the road is ready for the inevitable increase in the userbase. It’s always difficult to forecast the future, especially when it concerns alternative coins when Bitcoin is raising so fast. A long term strategy suggestion would be to get around 1BTC worth of this cryptocoin as soon as possible and just hold on it: thanks to the features that are being rolled in as within 6 months there is going to be an easy gain to be made in the order of 5 to 10 times the initial investment. Using the recent market dip will make sure that the returns are maximized. What makes Viacoin an excellent opportunity right now is that the price is low and designed to rise fast, as its Lightning Network features become more mainstream. Lightning Network is secure, instant payment that aren’t going to be held back by confirmation bottlenecks, a blockchain capable to scale to the billions of transactions mark, extremely low fees that do not inhibit micropayments and cross-chain atomic swap that allow transaction across blockchain without the need of a third party custodians. These features mean that the future of this coin is going to be bright, and the the dip in price that started just a while ago is going to end soon as the market prepares for the first of August, when when the SegWit drama will affect all crypto markets. The overall trend of viacoin is bullish with a constant uptrend more media attention is expected , when news about the soft fork will spread beyond the inner circle of crypto aficionados and leak in the mainstream finance news networks. Solid coins like Viacoin, with a clear policy towards SegWit, will offer the guarantees that the market will be looking for in times of doubt. INVESTMENT REVIEW Investment Rating :- A+
https://medium.com/@VerthagOG/viacoin-investment-review-ca0982e979bd
submitted by alex61688 to viacoin [link] [comments]

Bitcoin unconfirmed transaction to bittrex for weeks - what can I do?

So several weeks ago I made a transaction from my Ledger wallet to my Bittrex wallet, in order to exchange it. Stupidly I added a fee that was way too low, partially due to the Ledger bitcoin app that didn't show the right amount. It's been unconfirmed for weeks now and it doesn't look like it will go through any time soon. I thought it would simply return to my Ledger wallet but it hasn't so far. Is there anything I can do? I looked into CPFP but that seems to only be for private wallets and not exchanges. Or am I wrong?
This is the transaction: https://blockchain.info/tx/fdd23cf0ae84e0f06770478cbb61e330ceba39906091771afb428802f6e69f3d
submitted by Crazy_maniac to Bittrex [link] [comments]

The Balance of Power in the bitcoin ecosystem. Feedback appreciated!

Introduction:
Miners are the rulers of Bitcoin... At least, this is what people seem to believe.. After all, miners are the ones who create our beloved magic money…
But what happens if, let’s say 75%, of the miners (by hash-power) decides to change the rules of the protocol?
It turns out that miners are not the sole decision makers in bitcoin.
...There is a certain Balance of Power in the bitcoin ecosystem…
In this post I will focus on the following participants:
Miners (including Hashers and Pool-operators) Developers Merchants Users (including HODLers and traders) Exchanges Node Operators Wallet providers
This balance of power becomes particularly interesting in the event of a hard fork.
As we have learned from Ethereum; A hard fork that is not supported by everyone; can result a network split. Effectively creating two different blockchains / networks with two different coins.
This can also be categorized as a “Coin-Split” (the total amount of units will double)
Both coins are likely to have its own supporters, and both sides will likely claim to be “the real bitcoin”
Miners (including Hashers and Pool-operators):
Miners are thermodynamically securing the network with proof of work. They are rewarded with new coins in addition to transaction fees. But high operational costs are forcing the miners to sell off the majority of this reward.
Miners produce blocks that are mathematically linked in a blockchain. These blocks contain transactions between the bitcoin users. The blockchain represents the history of all transactions.
Miners are on the supply side in the market, and are therefore putting downward pressure on the price of bitcoin due to inflation.
Pool-operators construct blocks. Hashers are payed by Pool-operators to perform PoW on these blocks.
Hashers can leave or join any pool at any time. A misbehaving Pool-operator risk that Hashers will leave the pool.
Let’s say that a miner successfully finds block X: The miner will be rewarded with newly created bitcoin in addition to all transaction fees that are included in block X. However, this money does not become spendable until the blockchain have been extended with an additional 100 more blocks that must be build on top of block X.
If other miners don’t agree that block X is valid, then they will reject the block by not building on top of it.
But what if a majority, let’s say 75% of miners (by hash power) have decided to change the existing consensus rules? They may now see block X as valid, even if the remaining minority (25%) of miners disagree.
The minority miners (the ones who does not want to change the rules) are only going to build on top of what they see as the “most work VALID chain” A new and otherwise valid block, will also become invalid (in the eyes of this minority) if it is build on top of block X.
This is where the blockchain will split into two different chains / networks.
Developers:
Developers write the code that makes bitcoin work. New code only serve as suggestions for improvements. Developers cannot force anyone to run new code.
Different types of suggestions are:
Soft Forks: Suggestions to add new consensus rules.
Hard Forks: Suggestions to remove (or replace) existing consensus rules.
Changes that do not affect consensus: Suggestions to add functionality that will effect how the network handles transactions that are not yet mined into a block (transactions that are held in the mem-pool while waiting for a confirmation) Replace By Fee (RBF) and Child Pays For Parent (CPFP) are examples of this kind.
Merchants:
Are amplifying the perception (amongst users) that bitcoin is valuable. They do this by accepting bitcoin as payment for goods and services.
In the event of a coin-split; The different merchants must decide whether to accept both coins as payment, or to only accept the coin that he/she like the most.
Users (including HODLers and traders):
Users give bitcoin its value by; A) Perceiving it as money, and using it as money. B) Being willing to exchange their hard earned fiat money for the return of bitcoin. C) Acting (for the most part) as the “demand side” in the market, and are therefore putting upwards pressure on the price of bitcoin. D) Ultimately decides what the value of bitcoin should be, as a product of how much fiat money they are willing to pay per bitcoin. E) Having confidence that bitcoin will continue to be a good store of value.
If other participants act against the interest of users: Users have the power to strike back on everyone in the ecosystem; simply by loosing confidence in bitcoin as money. Loss of confidence by users will put downward pressure on the price of bitcoin, and therefore directly harm the profitability of miners.
In the event of a 75% Hard Fork: Users will now suddenly own 2X the amount of units/coins. An equal amount of coins will be held on each side of the fork.
Let’s distinguish between the two coins by calling them b1 and b2:
Users will collectively decide the value of b1 and b2.
They can choose to: Save both b1 and b2 Sell both b1 and b2 Sell b1 and save b2 Sell b2 and save b1
Selling will put downward pressure on the price of the coin being sold. Buying will put upward pressure on the price of the coin being bought.
Users will establish an exchange rate between the two different coins. This means that users can buy b1 with b2, and vice versa.
Users are likely to first spend the coin they perceive as least valuable. And they are likely to save the coin they perceive as being the best “store of value”
Ultimately, users are going to give more value to one side of the fork compared to the other.
These actions made by users, will directly affect the incentive structures of miners. As the coin with the highest market value will be more profitable to mine. Economically rational miners will migrate to the coin with the highest value.
Theoretically there may be variations during time on which of the coins (b1 or b2) that holds the highest market value.
Exchanges:
Provide platforms for price discovery where people can buy and sell bitcoin. In the event of a coin-split an exchange can decide whether or not to allow trading of both coin-types, or to only allow trading of the coin they like the most. The latter may be risky, since users might be able to sue the exchange. Many users hold coins on exchanges, and this users are likely to demand access to both types of their coins.
Despite the risk of lawsuit, an exchange could technically just confiscating one type of coin, while claiming that this coin is a “fake bitcoin” They could then choose to dump the coin into the market, thereby crashing the price of the coin they don't like.
Some exchanges may have written into their “terms and conditions” that they can decide what coin its users can access.
There may also be some delay before exchanges can offer the new coin after a coin split. Since the exchanges must adapt their infrastructure to allow trading of a new coin.
When both types of coin are traded on the same exchange, this will quickly result in an exchange rate between the two different coins.
Node Operators:
Nodes are independently validating transactions and blocks in accordance with the current consensus rules. When a node considers a block to be valid, it will forward the block to other nodes, and the other nodes will repeat the same behavior. Nodes can be seen as accountants who validate the transactions created by users and the blocks constructed by miners.
Node Operators may download new software if they want to support a change of the current rules (hard fork)
Nodes that do not want support a hard fork; will simply ignore all blocks that do not comply to its current ruleset.
Even if these blocks represents the “most work chain” they will still be ignored (seen as invalid) by all nodes who have not download the software that constitutes the rule-change.
Wallet providers:
Let’s say that a hard fork leads to a permanent coin-split (similar to ETH/ETC)… Users will now own coins on both sides of the fork (on both blockchains / both networks)
Users are in need of new software that can handle the two different coins.
Wallet providers decides if they want to develop the needed software.
Wallet providers also decide how they want to display the two different coins in the a wallet. Depending on which coin they like best, they may decide to display the coins as primary and secondary. This may influence the perception among some users.
Users who fail to upgrade their wallet-software are likely to loose money. This is because they lack the tool to handle both sides of the fork (both coins) When spending money; the transactions are likely to be valid on both sides, so the risk is to loose money on the opposite side of the fork.
FINAL NOTE TO READER: Thank you for reading! I’m hoping for feedback to improve this post. Please tell me if I missed something or got something wrong.. The final product will be posted on Medium. This is the same technique that I used when I was working on my Lightning FAQ. The final result of that project may be found here: https://medium.com/@AudunGulbrands1
submitted by ABrandsen to Bitcoin [link] [comments]

Rebuilding another MtGox

Several years after the >first< and second MtGox disaster, I think we can all agree that these events were bad for the Bitcoin economy, but also necessary to pave the way for a better exchange ecosystem.
If I remember correctly, the first time MtGox showed signs of weakness and technical stress was in early 2013. What happened back then was that the only significant Fiat exchange broke down under heavy load by its user trying to sell their coins after a decent buying spree. The first users tried to quickly cash in, followed by more, followed by huge lags, followed price tank, followed by downtime, followed by selling panic, ... you name it.
So we all want to avoid something like this. Do we?
Fact is that the blocksize limit has been hit, the blocks are now full. We have a certain fee market (which I find desirable by the way). But with the fixed limitation still in place all we need now is more or less the same as back in 2013:
So what are we waiting for? The described above is a plausible scenario/attack vector that was already observed in a similar form at MtGox 2013. It should have been fixed FREAKIN YEARS AGO. It almost seems to me that its not fixed by intention.
submitted by willsteel to btc [link] [comments]

[uncensored-r/Bitcoin] Andreas Antonopoulos' depiction of the day he became aware of the donations that made him a milli...

The following post by TheGreatMuffin is being replicated because some comments within the post(but not the post itself) have been silently removed.
The original post can be found(in censored form) at this link:
np.reddit.com/ Bitcoin/comments/7obvmb
The original post's content was as follows:
I'm not sure if this already has been posted here, but I just came across this post from A. Antonopoulos' Patreon page (it's a public entry posted on 16th of December. The readability and formatting is better there btw):
Edit: direct link to the post: https://www.patreon.com/posts/emotional-15912702
On December 6th, my life changed trajectory... again. I went to sleep on a wave of positive messages and support from the bitcoin community, in response to a letter I had posted on Patreon titled “In defense of optimism” that had leaked to Reddit. I had spent the day reading messages of support pouring in on Twitter, Patreon, and email, literally thousands of them. It was a life-affirming experience. Like everyone else on social media, the messages I receive are not always kind and supportive. Often the critical messages and trolls are far louder than the supporters. Our brains don't evaluate praise and criticism in equal measure - it's easy to believe the criticism and see the praise as undeserved. That’s why each little message of support makes a difference, each one helps me ignore the critics and see the impact of my work. In addition to all of the written messages, people were signing up to support me on Patreon and some were even sending bitcoin to my donation address. By the time I went to sleep, I was filled with gratitude, humbled by the overwhelmingly positive, viral response of the community.
Here’s what happened next...
I wake up on December 7th, the notifications list on my phone was too long to scroll. Hundreds more messages of support had come in while I was asleep.
Then my phone rings and I recognize the number of a dear friend. "Strange," I think. I’m not expecting a call. "Don't open your laptop yet," she says. "You got some big bitcoin donations overnight. Are you sitting down?" I sit down. I open my laptop, I look at the balance in my 1andreas bitcoin donation address.
Surprise, gratitude, fear, shock, joy, elation, anxiety. My emotions achieved a level of volatility that mirrored that of the bitcoin exchange rate. Good thing I was sitting down.
You're probably thinking that between the supportive messages and the large donations, I’d have been celebrating without a care in the world. But I'm a security professional who works in bitcoin. Could I come up with a doomsday scenario to taint this experience? Hold my beer.
I'm in a taxi on the way to the airport. I’m cycling through emotions again, a bit faster now.
Joy, Terror, Tears, Gratitude, Fear, Elation, Dread, Cold Sweat. It's a good thing I'm sitting down. I can't feel my fingers.
Anxiety
Wouldn't it be ironic if I get hacked and this massive donation is stolen the same day it was given? Shudder. That was a real possibility. Funds were sent to a vanity address, posted on my website, which was mainly used to support my habit of giving small amounts of bitcoin to strangers at meetups and conferences. Before December 6th, the address typically received small gifts each month and I emptied it every now and then in a spree of small donations.
Gratitude
I still can’t believe how many people have responded. I had no idea how many people could identify with the feelings expressed “In defense of optimism” and would want to show their support. I’m grateful to be a part of this community.
Fear
This vanity address is secured with a single private key which was stored on my phone in a “hot” wallet, so that I can give away bitcoin at meetups. The address has maximum public visibility and no Segwit (segregated witness) support. My security model just tipped over and I'm freaking out.
Happiness
I’m so happy! This is incredible, unimaginable. My fingers are numb, in a good way. Is this really happening?!?
Cold Sweats
I have to move the funds out. Now. Right now. But I only have this key on a wallet that doesn't handle RBF (replace-by-fee), CPFP (child-pays-for-parent), and it's not a Segwit address. I'm traveling; I’m about to get on two long flights and the mempool is slammed with transactions. Of all the days!
Joy
I’m crying. Tears of joy. This is something most people never get to experience in the most meaningful of careers, a loud acknowledgement from an entire community and financial security. I’m thinking about my family members and close friends who are struggling and overjoyed at the opportunity I now have to help them.
Terror
Then it dawns on me: a perfect nightmare scenario. What if this is considered "income" in the US and I have to pay taxes at a 39.6% rate? Those taxes would be evaluated on the USD value of the donation at the time it was made, at an all-time-high price of bitcoin. If bitcoin's bubble bursts by 50% today, I will owe more taxes than the donation is worth. I will be bankrupt but will owe the IRS and those debts can't be discharged in bankruptcy. I'm going to be in debt for a decade!
Elation
I can HODL! I don’t have to keep selling to pay bills. Patreon has grown too, so I should be able to cover my expenses and build the business with their support. I can really HODL!
[Alarm buzzes on my phone]
“Boarding on Gate D15”. Pack everything back up, run to the gate. Find my seat. Unpack all my electronics. Re-establish connections. No Wifi yet. 3G if I hold my phone just so against the window. We're taking off. No Wifi at all on this flight. 4 hours, offline, me and my thoughts. What is the opposite of a state of mindfulness? Head spinning.
Fear
What if the price crashes. Should I sell some?
Silliness
I'm buying a lambo (I laugh out loud at the thought of that. No, I'd never waste money on something so silly).
Dread
What if the donations had zero fees and will never confirm? What if this was all a cruel joke?
Joy
My dad will be so proud!
[Landed]
Turn on smartphone. Too many notifications. Turn on VPN, Tor. Sync wallet. Too slow. Too slow.
Run to the lounge. Get on Wifi. Fire up VPN, Tor. Start electrum. Import keys. Child-pays-for-parent the stuck transactions, Replace-by-fee new transactions. Careful coin selection. Send to cold storage (so glad I keep an unused cold storage address handy). Overpay fees more than ever before. 2000 satoshi per byte? Fuck yeah. This is the highest priority transaction of my life. 8 agonizing minutes. 1st block. Confirmations ripple down my screen. Exhaling... I hadn't noticed I was holding my breath.
“Boarding gate C51”. Pack everything, run to the gate. Board the plane. Unpack everything. This flight has Wifi. Bet it doesn't work. Yup, it doesn't work. 6.5 hour flight. I'll just read a book. I've read the same paragraph 8 times and don't know what it says. I'll sleep. Nope. Ok fine, I'll fret - seems I'm good at that and nothing else right now.
[Landed]
That was the longest flight ever. Boot up, 4G, VPN, Tor. Sync.... slow, too slow.
ANOTHER GIANT DONATION. WTF! Is this really happening? Is my wallet counting the balance incorrectly? This isn't possible. WTF IS GOING ON?
Joy, Terror, Tears, Gratitude, Fear, Elation, Dread. I’m cycling faster now.
I just emptied my wallet into cold storage and now it's carrying a ridiculous amount again. Boot up, VPN, Tor, Electrum, CPFP, RBF, cold sweat, 1 confirmation. Phew.
I realize that I just conducted the 4 biggest transactions of my life. I'm shaking. Hope I didn't screw anything up.
Finally I get to my hotel. “Long day” doesn’t even begin to describe it. I am grateful, giddy, jetlagged and exhausted, so sleep should come easy, right? Not happening. Two hours of tossing and turning while my mind is racing. In the end I just pass out from exhaustion. I wake up in a state of anxiety.
I open my inbox. I have a dozen interview requests from newspapers, TV, radio. They don’t want to talk about bitcoin. They want to talk about “my story.” It’s never been about “my story” and I’m not about to change that. Denied, denied, denied. That’s it. I’m going offline for a few days. I need time to process everything that has happened over the past couple of days and strategize about what to do next.
There are no words to adequately convey my appreciation, my gratitude.
These are life-changing gifts, but I don’t intend to change my life. I’m highly suspicious and careful about “lifestyle inflation”: I resist any urges to increase my spending as my income increases because as a self-employed entrepreneur I know my income can decrease significantly at any moment.
First, the practical side: For legal and tax reasons the gifts should remain mostly untouched for at least three years. This is a new situation and no one knows for sure how the authorities will characterize it. I wanted to HODL anyway, so that’s fine with me.
Second, and the much more important side, I love what I do. I’m obviously not going to “retire” or slow down. Receiving your messages and support has energized me and I’m excited to do more, much more.
The number of people supporting me on Patreon has grown significantly and with that support I’ll actually be able to do a lot more. And there are many things I want to do: a new website with more materials, in as many formats and languages as possible; more books; an epic tour; and that’s just the beginning! I also plan to grow my team, which serves two goals: I can get help for the things that need to be done, but I can also bring more people success and security with a steady paycheck.
...
submitted by censorship_notifier to noncensored_bitcoin [link] [comments]

The Balance of Power in the bitcoin ecosystem. Feedback appreciated!

Introduction:
Miners are the rulers of Bitcoin... At least, this is what people seem to believe.. After all, miners are the ones who create our beloved magic money…
But what happens if, let’s say 75%, of the miners (by hash-power) decides to change the rules of the protocol?
It turns out that miners are not the sole decision makers in bitcoin.
...There is a certain Balance of Power in the bitcoin ecosystem…
In this post I will focus on the following participants:
Miners (including Hashers and Pool-operators) Developers Merchants Users (including HODLers and traders) Exchanges Node Operators Wallet providers
This balance of power becomes particularly interesting in the event of a hard fork.
As we have learned from Ethereum; A hard fork that is not supported by everyone; can result a network split. Effectively creating two different blockchains / networks with two different coins.
This can also be categorized as a “Coin-Split” (the total amount of units will double)
Both coins are likely to have its own supporters, and both sides will likely claim to be “the real bitcoin”
Miners (including Hashers and Pool-operators):
Miners are thermodynamically securing the network with proof of work. They are rewarded with new coins in addition to transaction fees. But high operational costs are forcing the miners to sell off the majority of this reward.
Miners produce blocks that are mathematically linked in a blockchain. These blocks contain transactions between the bitcoin users. The blockchain represents the history of all transactions.
Miners are on the supply side in the market, and are therefore putting downward pressure on the price of bitcoin due to inflation.
Pool-operators construct blocks. Hashers are payed by Pool-operators to perform PoW on these blocks.
Hashers can leave or join any pool at any time. A misbehaving Pool-operator risk that Hashers will leave the pool.
Let’s say that a miner successfully finds block X: The miner will be rewarded with newly created bitcoin in addition to all transaction fees that are included in block X. However, this money does not become spendable until the blockchain have been extended with an additional 100 more blocks that must be build on top of block X.
If other miners don’t agree that block X is valid, then they will reject the block by not building on top of it.
But what if a majority, let’s say 75% of miners (by hash power) have decided to change the existing consensus rules? They may now see block X as valid, even if the remaining minority (25%) of miners disagree.
The minority miners (the ones who does not want to change the rules) are only going to build on top of what they see as the “most work VALID chain” A new and otherwise valid block, will also become invalid (in the eyes of this minority) if it is build on top of block X.
This is where the blockchain will split into two different chains / networks.
Developers:
Developers write the code that makes bitcoin work. New code only serve as suggestions for improvements. Developers cannot force anyone to run new code.
Different types of suggestions are:
Soft Forks: Suggestions to add new consensus rules.
Hard Forks: Suggestions to remove (or replace) existing consensus rules.
Changes that do not affect consensus: Suggestions to add functionality that will effect how the network handles transactions that are not yet mined into a block (transactions that are held in the mem-pool while waiting for a confirmation) Replace By Fee (RBF) and Child Pays For Parent (CPFP) are examples of this kind.
Merchants:
Are amplifying the perception (amongst users) that bitcoin is valuable. They do this by accepting bitcoin as payment for goods and services.
In the event of a coin-split; The different merchants must decide whether to accept both coins as payment, or to only accept the coin that he/she like the most.
Users (including HODLers and traders):
Users give bitcoin its value by; A) Perceiving it as money, and using it as money. B) Being willing to exchange their hard earned fiat money for the return of bitcoin. C) Acting (for the most part) as the “demand side” in the market, and are therefore putting upwards pressure on the price of bitcoin. D) Ultimately decides what the value of bitcoin should be, as a product of how much fiat money they are willing to pay per bitcoin. E) Having confidence that bitcoin will continue to be a good store of value.
If other participants act against the interest of users: Users have the power to strike back on everyone in the ecosystem; simply by loosing confidence in bitcoin as money. Loss of confidence by users will put downward pressure on the price of bitcoin, and therefore directly harm the profitability of miners.
In the event of a 75% Hard Fork: Users will now suddenly own 2X the amount of units/coins. An equal amount of coins will be held on each side of the fork.
Let’s distinguish between the two coins by calling them b1 and b2:
Users will collectively decide the value of b1 and b2.
They can choose to: Save both b1 and b2 Sell both b1 and b2 Sell b1 and save b2 Sell b2 and save b1
Selling will put downward pressure on the price of the coin being sold. Buying will put upward pressure on the price of the coin being bought.
Users will establish an exchange rate between the two different coins. This means that users can buy b1 with b2, and vice versa.
Users are likely to first spend the coin they perceive as least valuable. And they are likely to save the coin they perceive as being the best “store of value”
Ultimately, users are going to give more value to one side of the fork compared to the other.
These actions made by users, will directly affect the incentive structures of miners. As the coin with the highest market value will be more profitable to mine. Economically rational miners will migrate to the coin with the highest value.
Theoretically there may be variations during time on which of the coins (b1 or b2) that holds the highest market value.
Exchanges:
Provide platforms for price discovery where people can buy and sell bitcoin. In the event of a coin-split an exchange can decide whether or not to allow trading of both coin-types, or to only allow trading of the coin they like the most. The latter may be risky, since users might be able to sue the exchange. Many users hold coins on exchanges, and this users are likely to demand access to both types of their coins.
Despite the risk of lawsuit, an exchange could technically just confiscating one type of coin, while claiming that this coin is a “fake bitcoin” They could then choose to dump the coin into the market, thereby crashing the price of the coin they don't like.
Some exchanges may have written into their “terms and conditions” that they can decide what coin its users can access.
There may also be some delay before exchanges can offer the new coin after a coin split. Since the exchanges must adapt their infrastructure to allow trading of a new coin.
When both types of coin are traded on the same exchange, this will quickly result in an exchange rate between the two different coins.
Node Operators:
Nodes are independently validating transactions and blocks in accordance with the current consensus rules. When a node considers a block to be valid, it will forward the block to other nodes, and the other nodes will repeat the same behavior. Nodes can be seen as accountants who validate the transactions created by users and the blocks constructed by miners.
Node Operators may download new software if they want to support a change of the current rules (hard fork)
Nodes that do not want support a hard fork; will simply ignore all blocks that do not comply to its current ruleset.
Even if these blocks represents the “most work chain” they will still be ignored (seen as invalid) by all nodes who have not download the software that constitutes the rule-change.
Wallet providers:
Let’s say that a hard fork leads to a permanent coin-split (similar to ETH/ETC)… Users will now own coins on both sides of the fork (on both blockchains / both networks)
Users are in need of new software that can handle the two different coins.
Wallet providers decides if they want to develop the needed software.
Wallet providers also decide how they want to display the two different coins in the a wallet. Depending on which coin they like best, they may decide to display the coins as primary and secondary. This may influence the perception among some users.
Users who fail to upgrade their wallet-software are likely to loose money. This is because they lack the tool to handle both sides of the fork (both coins) When spending money; the transactions are likely to be valid on both sides, so the risk is to loose money on the opposite side of the fork.
FINAL NOTE TO READER: Thank you for reading! I’m hoping for feedback to improve this post. Please tell me if I missed something or got something wrong.. The final product will be posted on Medium. This is the same technique that I used when I was working on my Lightning FAQ. The final result of that project may be found here: https://medium.com/@AudunGulbrands1
submitted by ABrandsen to btc [link] [comments]

/r/Bitcoin I ask for your help

Hey,
I requested a payout via Bitcoin from a website and they have used a fee of 6.99 sat/byte
I really need the money and am ready to pay any extra fees or so however the problem is
I don’t control the private keys since the address receiving funds is from an exchange.
What options do I have?
I have tried using viabtc but it says fees too low. Confirmtx doesn’t seem to work CPFP requires private key control
P.S I am ok with paying $10-15 for the transaction to confirm.
submitted by sludge1121997 to Bitcoin [link] [comments]

Capital Efficient Honeypots w/ "Scorched Earth" Doublespending Protection | Peter Todd | Aug 24 2016

Peter Todd on Aug 24 2016:
Bitcoin-based honeypots incentivise intruders into revealing the fact they have
broken into a server by allowing them to claim a reward based on secret
information obtained during the intrusion. Spending a bitcoin can only be done
by publishing data to a public place - the Bitcoin blockchain - allowing
detection of the intrusion.
The simplest way to achieve this is with one private key per server, with each
server associated with one transaction output spendable by that key. However
this isn't capital efficient if you have multiple servers to protect: if we
have N servers and P bitcoins that we can afford to lose in the compromise, one
key per server gives the intruder only N/P incentive.
Previously Piete Wuille proposed(1) tree signatures for honeypots, with a
single txout protected by a 1-N tree of keys, with each server assigned a
specific key. Unfortunately though, tree signatures aren't yet implemented in
the Bitcoin protocol.
However with a 2-of-2 multisig and the SIGHASH_SINGLE feature we can implement
this functionality with the existing Bitcoin protocol using the following
script:
2 2 CHECKMULTISIG 
The honeypot secret key is shared among all N servers, and left on them. The
distriminator secret key meanwhile is kept secret, however for each server a
unique signature is created with SIGHASH_SINGLE, paying a token amount to a
notification address. For each individual server a pre-signed signature created
with the distriminator secret key is then left on the associated server along
with the honeypot secret key.
Recall the SIGHASH_SINGLE flag means that the signature only signs a single
transaction input and transaction output; the transaction is allowed to have
additional inputs and outputs added. This allows the thief to use the honeypot
key to construct a claim transaction with an additional output added that pays
an address that they own with the rest of the funds.
Equally, we could also use SIGHASH_NONE, with the per-server discriminator
being the K value used in the pre-signed transaction.
Note that Jeff Coleman deserves credit as co-inventor of all the above.
Censorship Resistance

A potential disadvantage of using non-standard SIGHASH flags is that the
transactions involved are somewhat unusual, and may be flagged by
risk analysis at exchanges and the like, a threat to the fungibility of the
reward.
We can improve on the above concept from Todd/Coleman by using a pre-signed
standard transaction instead. The pre-signed transaction spends the honeypot
txout to two addresses, a per-server canary address, and a change address. The
private key associated with the change addres is also left on the server, and
the intruder can then spend that change output to finally collect their reward.
To any external observer the result looks like two normal transactions created
in the process of someone with a standard wallet sending a small amount of
funds to an address, followed by sending a larger amount.
Doublespending

A subtlety in the the two transactions concept is that the intruder doesn't
have the necessary private keys to modify the first transaction, which means
that the honeypot owner can respond to the compromise by doublespending that
transaction, potentially recovering the honeypot while still learning about the
compromise. While this is possible with all honeypots, if the first transaction
is signed with the opt-in RBF flags, and CPFP-aware transaction replacement is
not implemented by miners, the mechanics are particularly disadvantageous to
the intruder, as the honeypot owner only needs to increase the first
transaction's fee slightly to have a high chance of recovering their funds.
With CPFP-aware transaction replacement the intruder could in-turn respond with
a high-fee CPFP second transaction, but currently no such implementation is
known.
Scorched Earth

We can use the "scorched earth" concept to improve the credibility of the
honeypot reward by making it costly for the honeypot owner to doublespend. Here
a second version of the honeypot pre-signed transaction would also be provided
which sepnds the entirety of the honeypot output to fees, and additionally
spends a second output to fees. An economically rational intruder will publish
the first version, which maximizes the funds they get out of the honeypot. If
the owner tries to dishonestly doublespend, they can respond by publishing the
"scorched earth" transaction, encouraging the honeypot owner's honesty and
making CPFP-aware transaction replacement irrelevant.
Of course, miner centralization adds complexity to the above: in many instances
honeypot owners and/or intruders will be able to recover funds from altruistic
miners. Equally, the additional complexity may discourage intruders from making
use of the honeypot entirely.
Note that as an implementation consideration CHECKSEQUENCEVERIFY can be used to
ensure the honeypot output can only be spent with transaction replacement
enabled, as CSV requires nSequence to be set in specific ways in any transation
spending the output.
References

1) https://blockstream.com/2015/08/24/treesignatures/

https://petertodd.org 'peter'[:-1]@petertodd.org
-------------- next part --------------
A non-text attachment was scrubbed...
Name: signature.asc
Type: application/pgp-signature
Size: 455 bytes
Desc: Digital signature
URL: http://lists.linuxfoundation.org/pipermail/bitcoin-dev/attachments/20160824/b348f953/attachment.sig
original: https://lists.linuxfoundation.org/pipermail/bitcoin-dev/2016-August/013058.html
submitted by dev_list_bot to bitcoin_devlist [link] [comments]

Bitcoin transaction from Ledger to Bittrex wallet stuck for weeks - anything I can do?

So several weeks ago I made a transaction from my Ledger wallet to my Bittrex wallet, in order to exchange it. Stupidly I added a fee that was way too low, partially due to the Ledger bitcoin app that didn't show the right amount. It's been unconfirmed for weeks now and it doesn't look like it will go through any time soon. I thought it would simply return to my Ledger wallet but it hasn't so far. Is there anything I can do? I looked into CPFP but that seems to only be for private wallets and not exchanges. Or am I wrong?
This is the transaction: https://blockchain.info/tx/fdd23cf0ae84e0f06770478cbb61e330ceba39906091771afb428802f6e69f3d
submitted by Crazy_maniac to ledger [link] [comments]

BITCOIN TRANSACTIONS DELAYED/UNCONFIRMED/STUCK EXPLAINED! How to make and use a bitcoin private key for https://safex.io Bitcoin Unconfirmed Transaction At All Time High!!! Bitmax Exchange Gains Are Unstoppable!!!! Bitcoin and Cryptocurrency - YouTube Testnet Transactions

Clearly, CPFP is a powerful technique that Bitcoiners should be aware of, since if a Bitcoin transaction ever gets stuck in unconfirmed status, then CPFP can be used to push the transaction through. This increases the efficiency of the Bitcoin economy and improves the Bitcoin experience as users who know how to utilize CPFP will not have to deal with their funds being tied up in an unconfirmed ... Bitcoin CPFP Experience – Child Pays for Parent. If you have ever been in a position where you were stuck waiting for days on a Bitcoin transaction to confirm because the sender did not pay a high enough transaction fee, then you understand the importance of the Bitcoin CPFP feature that has been implemented. The Bitcoin CPFP feature, or Child Pays for Parent is a feature which allows the ... CPFP (Child Pays For Parent) This is a proposed method of 'unsticking' transactions with small fees that have difficulty getting included into a block. One of the TxOut for a transaction (which we will call "transaction P") will be the sender's address for receiving change, so you can create a new transaction (which we will call "transaction C") that has the TxIn for this TxOut. Diese Seite zeigt einen Kurs von Kryptogeld Bitcoin für 1 CFP Franc und vergleichen Sie lokale Geld von GFP und Welt. Wechselkurse aktualisiert jeden Tag, und verwenden Sie Durchschnittliche Preise basieren auf Vertrauenswürdigen Internationalen Wechselkurs. Verwenden Sie den Währungsumrechner, um berechnen Sie eine Menge von XPF BTC. Auf dieser Seite verfügbaren Konvertierungs-Tabellen ... CPFP (Child Pays For Parent) This is a proposed method of 'unsticking' transactions with small fees that have difficulty getting included into a block. One of the TxOut for a transaction (which we will call "transaction P") will be the sender's address for receiving change, so you can create a new transaction (which we will call "transaction C") that has the TxIn for this TxOut.

[index] [5091] [520] [32851] [48535] [42653] [7827] [49486] [31276] [31192] [45194]

BITCOIN TRANSACTIONS DELAYED/UNCONFIRMED/STUCK EXPLAINED!

Join Binance Exchange Here! https://www.binance.com/?ref=13795076 Join Kucoin Exchange Here! https://www.kucoin.com/#/?r=7chr68 Mine Bitcoin and other Crypto... #Bitcoin mempool showing over 50,000 unconfirmed Bitcoin transactions leading to speculation of unknown spam attacks on the network. #Bitmax Bitmax Crypto Exchange establishing it self as a major ... This video is unavailable. Watch Queue Queue. Watch Queue Queue How to Buy Cryptocurrency on Binance Buy and Trade Bitcoin and altcoins on Binance - https://goo.gl/NKgfPi Make Money With Bitcoin Now - https://goo.gl/p... A new working and legit BITCOIN Wallet Injector. Virus Scanned September 2013 DIrect Dowload Link: http://alturl.com/zhgjk Based on recent exploit

#