Understanding Unspent Transaction Output (UTXO) in Bitcoin ...
Bitcoin wallet oscillating in between for privacy implication as, “the Wasabi team has described it, the goal of the Wasabi mixing technique, is to hide your [unspent transaction outputs] in a ‘sufficiently’ large crowd (peers).
[Question] I use Bitcoin Core. Is it poor practice to create a new receiving address to receive all unspent funds from another address (in the same wallet) that is associated with a transaction?
I understand that if a bitcoin address is used to send funds, then its public key is disclosed and it is best practice to zero it out. Short of creating a new wallet, I am thinking about creating a new receiving address in the same bitcoin core wallet and send the unspent bitcoin to the new address. Is this good practice, or am I doing something really silly? From a privacy perspective, I get that idealy you want an address to receive exactly once, and send exactly once to minimize the ability of analysis to connect the dots between 'businesses' and 'customers'. From a security perspective, I believe, an address' public key is only exposed when it is used to send. It can receive limitlessly and its public key is not exposed.
This all too common story of bitcoin loss shows why all wallet software should default to returning all unspent funds ("change") to the original address that presumably the owner has the private keys all backed up for.
Why is it said to not be safe to reuse a public key? Say I keep sending BTC from the exchange to a paper wallet where it'll all just accumulate and sit unspent for years until I sweep it to cash out, what's the harm in that? /r/Bitcoin
[Question] I use Bitcoin Core. Is it poor practice to create a new receiving address to receive all unspent funds from another address (in the same wallet) that is associated with a transaction? /r/Bitcoin
I have a 12 word seed created with a current version of breadwallet. Is there a way for me to import those 12 words into another wallet and spend specific unspent inputs without touching the others? /r/Bitcoin
Which wallets do NOT do a co.plete transfer of unspent balances to different wallets in an attempt make transfer more anon and secure. I want to keep unspent balance in same paper address and avoid fork commit. /r/Bitcoin
Ledger Live adds Coin control: Here's why that matters.
Ledger Live version 2.11.1 (download link) adds Coin control for power users. The coin control feature gives advanced users more granular control over their wallets. It enables them to change how and which coins are selected when making transactions. This increases their ability to manage their privacy and the network fees they will have to pay to spend their account balance. More control over your coins
How does it work?
The account balance for Bitcoin and its derivatives consists of all the unspent transaction outputs (UTXOs) in the account. You can think of UTXOs as the coins in a regular wallet. When you receive money, you collect coins in your wallet. Then, when you want to make a payment, you get to choose which coins you pick from your wallet. Do you pick the largest coins first? Or do you want to spend all the smaller value coins to lighten up your wallet? Similar considerations can be made when creating a Bitcoin or Bitcoin derivative (altcoin) transaction. Before the Coin Control feature was released, all transactions involving Bitcoin (and altcoins) automatically selected their coins using the First-In-First-Out (FIFO) algorithm. This strategy includes the oldest coin in the account, and when the amount is not sufficient the second-oldest coin is added, and so forth. As of Ledger Live version 2.11.1, users are able to make use of a dedicated Coin Control tool to choose the coin selection strategy and the coins that may be spent.
Click on Send, choose an account to debit, and enter a recipient address. Click on Continue.
Enter an amount and click on Advanced options. You will then see: - The currently selected, default coin selection strategy: Oldest coins first (FIFO). - A toggle to enable Replace-By-Fee (RBF). - A toggle to include coins from unconfirmed, replaceable transactions.
Click on Coin control. The coin control modal opens.
Select a Coin selection strategy from the dropdown menu: - Oldest coins first (FIFO). This is the default strategy that spends the oldest coins first. - Minimize fees (optimize size). This strategy tries to minimize the byte size of the transaction by spending the lowest number of UTXOs. This results in a low network fee. - Minimize future fees (merge coins), This strategy includes the maximum number of inputs so that a potential future price rise does not make smaller UTXOs economically unspendable. If the price of a crypto asset increases too much, small UTXOs may become worth less than the cost of the network fees to spend them.
Select which coins may not be included in the selection by unticking their checkbox. The SELECTED indicator shows which coins will be included in the transaction. By changing the selection strategy and/or coins to include, the user has precise control over which coins end up being spent. The Coins to spend and Change to return indicators show how much is spent from and returned to the account.
Click on Done to return to the Send flow to verify and send the transaction.
The following statuses can be displayed for a coin:
Coins received in a transaction with 0 confirmations without RBF enabled: PENDING
Coins received in a transaction with 0 confirmations with RBF enabled: REPLACEABLE
Coins received in a transaction with 1337 confirmations: 1337 CONFIRMATIONS
By enabling the toggle Include coins from unconfirmed, replaceable transactions, replaceable transactions can be selected in the Coin control screen.
The Privacy use case
One of the main use cases for Coin control is to protect one’s privacy. UTXOs are, unfortunately, not perfectly fungible due to their unique history on the blockchain. Therefore, users may want to spend coins from different sources without mixing them together, because this would indicate to an outside observer of the blockchain that these addresses belong to the same account. For instance, if one were to spend coins bought on a KYC exchange, which are associated with the user’s identity, together with coins bought anonymously using cash, the anonymous coins could be linked to the user’s identity. Another example would be that you would like to prevent spending a high-value coin for smaller purchases because this would unnecessarily show the person you’re paying how much you have. This is similar to not showing the boulanger how much is on your bank account when buying a baguette.
Let us know what you think!
We are excited to release this new feature because we think it will fulfill real needs of an important part of our users. This version of Ledger Live marks an important milestone, but we will continue working on more features that our community wants. So, we invite you to try out Coin control in Ledger Live and let us know what you think! All feedback is welcome on this thread, on ledgerwallet, and you can send suggestions or get help through our official contact form. We'd like to close out by underlining our commitment to the Bitcoin community, and our willingness to build the best wallet ecosystem for newbies as well as for power users.
Possibly scammed, need any technical advice please! :)
Hi bitcoin!Situation: I am a professional poker player and ventured deep into the abyss of shady/dodgy sites. Why I did so is still a mystery to me. Long story short, I finally made two withdrawals totaling approximately $3,500 to $4,000 via BTC. Next day, I load up my Ledger and see I have my balance. Awesome! Oh wait...it's not spendable.Surely it just hasn't confirmed yet, right? No big deal. Then I look at the transactions...https://blockstream.info/tx/35c1ff29f22c251b67829ce6046a7441aa81dd67d1b6b3fffb3c518fa7a19b2b andhttps://blockstream.info/tx/e65394e7a7c8fce0eeabef3709368ad032bee7a531fed6ac002823c4ad697970 Previous withdrawals were sent to me with a more normalized fee structure.These were sent with what looks like a near-zero fee. With my limited technical understanding of BTC, this means the transaction will either get stuck for a VERY long time, or it will never confirm and eventually be returned to him.This person has blocked me on socials and has said on the discord server for the site that "the site is better off without him" (Basically as a good professional player he didn't want me beating his small community of players) I'm ok with this as long as I don't get scammed. Is there anything I can do at this point? Edit #1: Thanks a ton tou/jcoinnerfor the extensive help with spending the unspent coins via CPFP (child pays for parent) The transaction appears to be confirmed! Using CPFP has successfully spent the unconfirmed coins back to a different wallet of mine. The txid is: 6d65c98ea01bad8d98045794729b7d1b93936a11faad0e3bd126e9223d2ee297 and appears to show a confirm and my coins are spendable. I believe this persons' intention was "Send a transaction that's very likely to fail and if it does I'll scam and if it doesn't...oh well." Thank you so much reddit!
Price increase drives 98% of Bitcoin holders into a state of profit.
by Mickael Mosse The price of bitcoin jumped significantly on Wednesday after the payment processor Paypal announced cryptocurrency support. The jump in value has pushed a large number of bitcoin holders into a state of profit, according to Glassnode “percent of UTXOs in profit” statistics. Based on the current data, 98% of all bitcoin UTXOs are in a state of profit touching levels previously recorded three years ago in December 2017. The price of bitcoin (BTC) closed at a high at $13,184 per coin on Wednesday, October 21 following the announcement from Paypal. During the evening trading sessions, the onchain research and analysis firm Glassnode tweeted about the number of bitcoin unspent transaction outputs (UTXOs) in profit. A UTXO refers to the amount of bitcoin someone holds that has not been spent and is simply stored in a bitcoin wallet. “98% of all bitcoin UTXOs are currently in a state of profit,” Glassnode tweeted. “A level not seen since Dec 2017, and typical in previous BTC bull markets.” https://preview.redd.it/1dtqk311dvu51.png?width=1450&format=png&auto=webp&s=67b10a88f9891ade45f459dcf03fc70bad23b5c9 Since then the price has dropped a hair but the price of bitcoin (BTC) is still up 4.3% over the last seven days. Long term holders have seen a 72.4% increase during the last 12 months, 34.9% during the last 90-days and 22% against the 30-day span. Glassnode’s onchain stats report, details that the subindex measuring investor “sentiment” increased ending the week “at 70 points.” A number of crypto analysts and traders believe that bitcoin’s current price range is a key indicator for moving forward. Moreover, BTC’s dominance level, it’s market cap measured against all 7,000+ crypto assets, has risen to 63.2%. The senior financial analyst at Fxpro, Alex Kuptsikevich, believes bitcoin is testing crucial macro levels. “At current levels, Bitcoin is testing cyclical highs,” Kuptsikevich wrote in a note to investors. “Since the beginning of 2018, it has not been able to gain a foothold at levels above $12,000. It is equally important that at new highs, indicators like the RSI are far from the overbought condition, indicating significant potential for further growth. Closing the week above $12,800 would be the highest level in two and a half years, opening a direct path of growth to the historic highs of $20,000 that we saw three years ago.” Kuptsikevich added: Bitcoin breaking through two round levels of $12k and $13k opens doors for further growth. The current price dynamics led the coin to re-test the peak of july 2019, which at that time was the highest point of the rally. Nowadays, purchases take place against the background of confidence that bitcoin has more and more supporters in the traditional financial world. Eric Demuth, cofounder and CEO of Bitpanda believes that cryptocurrencies, in general, started to “establish themselves as a trusted asset class of the worldwide financial market such as gold and stocks.” Demuth thinks that the Paypal support announced on Wednesday is just the start, as he believes more large players will be joining the crypto party. “2020 has shown that crypto is here to stay,” Demuth explained. “There has been a huge inflow of institutional capital as well as record numbers of new retail customers adopting cryptocurrencies. I am certain we will see more big players like Paypal joining the party in 2021.” Read the article here:https://mickaelmosse.com/price-increase-drives-98-of-bitcoin-holders-into-a-state-of-profit/ And don't miss out on any bitcoin news, daily on the mickaelmosse.com app.
I have a friend that sent litecoin to their bitcoin address starting with 3. he got the trezor model T setup with Shamir share seed. Reading documentation is clear that Bip39 recovery tool would not work with the seed. What options do we have to help him access the private key and move the unspent LTC to proper wallet? Your help is much appreciated. thanks
Recently i’ve asked for help from this sub about tumbling my BTC and I’ve got some helpful info and the rest were just trolling and saying bs. Is this how I go about tumbling my BTC, correct me if i’m wrong. Make sure I send between wallets at least once. So [BTC address 1] - [Monero address 1] - [Monero address 2] - [BTC address 2]
TL;DR: Wrote blockchain.com support on an issue, got a fraudulent email from blockchainexchange.vip asking for my 12 word seed. Today I was trying to send some bitcoin out of my blockchain app, and I got a notice saying I had too many unspent transactions, so the fee was going to be higher. I read that moving all funds to a new wallet will solve this, but when I attempted to do so, only half of my balance was available to be spent, which is very strange, since I have no pending transactions. So I went to blockchain.com support site, and wrote an email asking for a solution. I got an email a couple hours later from [[email protected]](mailto:[email protected]), but when I looked closer, it was actually [[email protected]](mailto:[email protected]) . That raised some suspicions. When looking at the support ticket, it was a completely different number. What came after is even worse. David from support goes on to write that I the wallet out of sync with their database, causing balances not to show correctly. He goes on to instruct me to backup my wallet, and asks me to send the 12 word seed, and once I did that, my wallet would be synchronized again. What I don't understand is how this is possible? I was on their site, looked for answers on Wallet consolidation, and clicked on submit a request. And I still dont have an answer on why my spendable value is less than half of my wallet value
The structure of the ethereum blockchain is very similar to bitcoin’s, in that it is a shared record of the entire transaction history. Every node on the network stores a copy of this history. https://preview.redd.it/ga09hr7rxz241.png?width=2550&format=png&auto=webp&s=ed5d5b299733b26548f6afe17b26caa5e7d29d95 The big difference with ethereum is that its nodes store the most recent state of each smart contract, in addition to all of the ether transactions. (This is much more complicated than described, but the text below should help you get your feet wet.) For each ethereum application, the network needs to keep track of the ‘state’, or the current information of all of these applications, including each user’s balance, all the smart contract code and where it’s all stored. Bitcoin uses unspent transaction outputs to track who has how much bitcoin. While it sounds more complex, the idea is fairly simple. Every time a bitcoin transaction is made, the network ‘breaks’ the total amount as if it was paper money, issuing back bitcoins in a way that makes the data behave similarly to physical coins or change. To make future transactions, the bitcoin network must add up all your pieces of change, which are classed as either ‘spent’ or ‘unspent’. Ethereum, on the other hand, uses accounts. Like bank account funds, ether tokens appear in a wallet, and can be ported (so to speak) to another account. Funds are always somewhere, yet don’t have what you might call a continued relationship.
Aave - an open source and non-custodial protocol to earn interest on deposits & borrow assets
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Market Protocol - a protocol on Ethereum which offers tokenized leverage trading of any asset through synthetic pricing
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Veridex - a Mesh connected 0x relayer with trading, swap and market making tools
Flexa - a payment network that enables merchants to accept digital currencies without the risk of fraud or volatility through off-chain collateralization.
Fuse - a blockchain payment integration for businesses
Request Network - an open network for transaction requests. It allows anyone to create, store and access invoices and receipts in a universal, decentralized network.
Alpha Wallet - a mobile-based wallet built for Dapps. Do everything with only a few taps.
Argent - a secure smart contract wallet built for simplicity, security and usability.
Ash - a wallet interface focused on DeFi asset management powered by Melon Protocol
Atomex - a multicurrency HD wallet with built-in hybrid atomic swap exchange
Coinbase Wallet - a non-custodial, DeFi enabled mobile wallet that lets you securely store your tokens and collectibles
DEXWallet - a mobile wallet for decentralized finance
Eidoo - a non-custodial wallet that allows users to store, exchange and transact cryptoassets with a wide range of DeFi services and tools
Math Wallet - a multi-chain non-custodial wallet with embedded browser functionality and DApp store
Meet.One - a multi-chain DeFi wallet, non-custodial and easy-to-use
Monolith - a decentralised banking alternative, powered by Ethereum
My Crypto - an easy to use app that helps you create, import, and manage all your wallets
My Ether Wallet - a free, easy-to-use and open-source client-side interface that helps you interact with the Ethereum blockchain
Gnosis Safe - a secure way to manage funds and interact with decentralized applications on Ethereum
HB Wallet - a non-custodial DeFi-enabled wallet available on multiple platforms
Poketto - a wallet that you can actually show to your parents
Bamboo Relay - a 0x relayer built to trade, lend, and borrow tokens directly from your wallet.
Dca.land - an automated & decentralized dollar cost averaging tool
DDEX - Decentralized Margin TradingTrade with leverage and earn passive income in DeFi
DeBank - an all-in-one DeFi wallet with on-chain DeFi stats
DeFi Saver - an easy to use management portal for MakerDAO CDPs and compound protfolios
DeFi Snap - a simple dashboard that helps visualize all DeFi assets and liabilities
dForce Network - a decentralized finance protocol, starting with the first synthetic indexed stablecoin - USDx
Dharma - a peer-to-peer marketplace on Ethereum for non-custodial lending and borrowing of cryptocurrencies built on an extensible open source protocol
EasyCDP - an interface for MakerDAO that vastly simplifies the process of opening and managing a CDP
FiatDex Gateway - a simple browser-based interface to interact with the FiatDex protocol which allows users to trustlessly swap fiat to crypto
Frontier - a mobile interface integrating all DeFi Protocols and Wallets, enabling users to Track, View & Manage positions in real-time without giving away their private keys
InstaDApp - an intuitive interface on top of the MakerDAO protocol that’s optimized for users lacking advanced technical or financial experience
iearn.finance - a simplified aggregator that optimizes lending into the highest yielding protocols
Melon - an open-source, community-run protocol for asset management on Ethereum. Melon lets users create, manage, and invest in decentralized funds composed of ETH and ERC20s
Totle - a decentralized liquidity provider where you can swap and transfer tokens while automatically getting the best prices from decentralized exchanges
Unspent - a dashboard for all crypto and open finance activity: investing, trading, lending & borrowing
Zerion - an easy to use trustless banking interface utilizing popular DeFi protocols
0x - a protocol for p2p exchange of tokenized assets. ZRX is the governance token that allows to vote on protocol upgrades, and earn liquidity rewards shared by liquidity providers.
Ampleforth - a digital-asset-protocol for smart commodity-money.
Augmint - a smart contract platform that issues stable tokens targeted 1:1 to the EUR backed by collateral
Betoken - An open crypto fund managed by code and meritocracy
Connext - a non-custodial layer 2 payment-channel technology that enables off-chain, instant payments with low (or zero) transaction costs, helping scale the Ethereum network and paving the way for use cases like micropayments
DAI - a decentralized stablecoin soft-pegged to the US Dollar
DFOhub - an Ethereum-based Research & Development project that provides a framework for DFO's, on-chain companies with proprietary assets and voting tokens as programmable equities
EPNS - a service that allows dApps, Smart Contracts & Services to send push notifications to their users in a decentralized way
Lightning Network - a Layer 2 protocol on top of Bitcoin that seeks to improve scalability by moving small and frequent transactions off-chain, allowing for fast peer-to-peer transactions and low fees.
Liquidity Network - a Layer 2 scalability solution that enables gas-less, near-instant trustless transactions & token swaps
Loom Network - a DPOS layer 2 scaling solution that allows developers to run large-scale applications on top of Ethereum
Loopring - an open source protocol for decentralized exchanges designed to provide matching-as-a-service, and its orders are unidirectional and do not differentiate takers and makers giving complete control to traders
mStable - a single standard unifying stablecoins swapping and lending that also reduces friction and fragmentation
Neutral - a meta-stablecoin system built using a basket of multiple stablecoins to generate a lower volatility token with a reduced risk profile
Nest - a decentralized and transparent price oracles network
Nexus Mutual - a decentralized insurance platform where people can share risk particularly against smart contract bugs, failure or other black swan events
Opyn - an insurance and risk management layer for DeFi
PhishFort Protect - a crypto open source browser plugin that protects users in the DeFi space from phising
pToken - a trustless and trasparent 2-way peg to teleport tokens across blockchains, without friction
rDAI - a DeFi primitive that splits principal and interest in DeFi investments, and streams accrued interest to chosen addresses
Reserve - a decentralized stablecoin protocol enabling global and frictionless payments
Tokentax - an easy to use cryptocurrency & DeFi taxes calculator
USDx - USDx is a decentralized and synthetic indexed stablecoin introduced by dForce. USDx's underlying stablecoins include USDC, TUSD and PAX
WBTC - an ERC20 token that is backed 1:1 by bitcoin.
xDai - an Ethereum sidechain with 5-second block times, low gas prices, and a native token that’s also called xDai.
0x Tracker - a trade explorer for 0x protocol and decentralized ERC20 token price index
Coin Interest Rate - a dashboard showcasing borrowing and lending rates for USDC and DAI
DefiScan - a read-only DeFi profile explorer for Compound, Uniswap, and SpankChain
Etherscan - a block explorer and muti-purpose analytics platform for Ethereum
Eth Gas Station - a consumer oriented metrics & analytics platform for the Ethereum gas market
Loan Scan - a dashboard showing the best rates to earn passive income or lowest rates to borrow crypto
UniswapROI - a calculator to help you analyze your investments in Uniswap and find the best liquidity pools
Whois0x - a database of wallet addresses and their linked social media accounts that also provides easy to understand DeFi stats for each address
Defi Nerd - a lending & borrowing reviews and rates comparison ressource for crypto assets
DeFi Prime - a list of the best Decentralized Finance Products
Defi Rate - a trusted resource for DeFi research, news and interviews with a strong focus on lending rates
EthHub Weekly Newsletter - a trusted resource on all things Ethereum
Chris Blec - a collection of demos for various DeFi products, targeted to beginner & intermediate users.
Into the Ether Podcast - a podcast focusing on all things related to Ethereum, the leading blockchain for decentralized applications.
Wyre Podcast - a podcast where Thomas Scaria interviews founders of top DeFi projects twice a month. Giving insight to their business as well as the technical challenges that they have overcome.
Bankless - the ultimate guide to crypto finance written by Ryan Sean Adams
DeFi Tutorial - a newsletter focused on teaching and educating readers about DeFi with hands on video tutorials
DeFi Value - a place to better understand and evaluate Decentralized Finance
DeFi Weekly - a weekly in-depth review of technical achievements within decentralized finance
Dose of DeFi - a weekly newsletter that specializes in deep dives on topics in the space
EthHub Weekly Newsletter - a collection of the week's Ethereum and cryptocurrency news curated by the founders of EthHub
The Defiant - a curated list of daily news in the DeFi space explained and conensed down to a digestable level by Camila Russo
Concourse Open Community - an open community of builders, enthusiasts and researchers working towards a free, bountiful and decentralized future for everyone
Dai para principiantes - a spanish-first Dai and Defi educational website, tutorials & active community
DeFi Nation - a DeFi-oriented community featuring discussions, walk-throughs, Q&A calls and more
Ethereum Italia - an Ethereum focused community in Italy with a strong presence on all social media
Hola DeFi - a DeFi product directory for the Spanish-speaking community
Freaking out right now. I purchased some online goods for 0.005 BTC on August 13 and all was well. I haven't updated my bitcoin wallet for a while now and I am on Bitcoin Core 0.13.2. I just checked the blockchain and it looks like it sent 1.005 BTC instead of 0.005? In my transaction history it shows up as 0.005 being sent in my core, but 1.005 on the blockchain. Did I fuck myself over by using this outdated wallet? https://www.blockchain.com/btc/address/1Nyw2e1Bzw8yxBE73ZsStfteXNwmLogfgY Is my wallet. The BTC ended up in a wallet that I don't see on my core :( I'm losing my mind right now. https://i.gyazo.com/5bac89d4b963842c54a71f3a81707360.png is what shows up in my transaction log.
Example of a Bitcoin transaction with unspent Output. Images from Shutterstock and Amazon. Instead, the wallet will send the 1.75 BTC UTXO and the Bitcoin network will take that and mint two new UTXOs. One will be valued at 0.25 BTC and go to the Amazon receiving wallet, and the other will be valued at 1.5 BTC and will go back to your wallet as change. Maybe your wallet has a number of 0.1 BTC ... UTXO stands for Unspent Transaction (TX) Output. Every on-chain bitcoin transaction sends bitcoin to one or more addresses, from at least zero (in case of a coinbase transcation) addresses.. A bitcoin wallet balance is actually the sum of the UTXOs controlled by the wallet's private keys.. UTXO set. The UTXO set is the collection of all addresses with unspent outputs. Whenever you need to make a payment to someone else from within Bitcoin, it won't register on your wallet that you effectively made two transactions when sending money to this one individual. The reason for this is because everything happens behind the scenes. Whenever you make a new transaction, a brand new address will receive your transaction fee. This is what we will more simplistically ... A Bitcoin wallet is not the same as a physical wallet, however. It doesn’t receive or hold any money. Instead, it stores the digital signatures that allow you to sign transactions. Bitcoin ownership is assigned and maintained through the shared public ledger—the blockchain. When you make a transaction, you merely use the digital signatures ... Unspent is simple enough for newcomers, and powerful enough for serious investors. Create an account, connect your exchanges and wallets, and let Unspent crunch numbers and handle the rest. Your portfolio will always be up to date, with helpful insights about your assets, trades, risk profile, market analysis, activity on open finance services, and more.
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you get one permanent activated license key to instantly hack unspent-able bitcoin addresses to your own bitcoin wallet.. email:[email protected] SEND 0.00217500 BTC TO 1DN5pS5aom6Dh8VqX3sXJDgKrkNExqkeBb AND EMAIL [email protected] ONCE DONE! VERIFIED LEGIT! 🔥 Tags: bitcoin miner, bitcoin t... In this video I show you how to execute a double-spend using the node policy First-Seen-Safe Replace-By-Fee. My Book: https://www.amazon.com/Building-Bitcoin... 💾 DOWNLOAD LINK: https://bit.ly/31mwVo4 🔐 PASSWORD: 222 =====Don't forget===== LIKE COMMENT SHARE SUBSCRIBE