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Showing posts from February, 2025

Bitcoin confirmed transaction but not showing in my freebitco.in wallet

I have purchased .01 freebitco.in from my friend from binance account. This transaction was confirmed but i never received the btc. I have written to customer support team twice but no response. All the information are correct such as my deposit address and can be found.Hash,Block,Conf. etc but i'm still waiting. Question .Do i just wait ? How to clear and receive Btc ? Help need to know whats going to happen? Transaction ID: 3d0d150d29ae81877c64d14e4be3c093ca79b46c02a758cb78103641d21827ac. My wallet address: 16LeyBdLtoFc6h71xAPqC7Dho387SBM5b1 Kindly help me in recovering by freebitcoin. from Recent Questions - Bitcoin Stack Exchange https://ift.tt/seW1cON via IFTTT

BITCOIN RECOVERY IS VERY MUCH REAL, AM A LIVING TESTIMONY!

I was actually fooled and scammed over ( $753,000 ) by someone I trusted with my funds through a transaction we did and I feel so disappointed and hurt knowing that someone can steal from you without remorse after trusting them, so I started searching for help legally to recover my stolen funds and came across a lot of Testimonials about intelligence cyber wizard , an agent who helps in recovery lost funds, which I can tell has helped so many people who had contacted him regarding such issues and without a questionable doubt their funds was returned back to their wallet in a very short space of time, it took the expert 48 hours to help me recover my funds and the best part of it all was that the scammers was actually located and arrested by local authorities in his region which was very relieving. Hope this helps as many people who have lost their hard earned money to scammers out of trust, you can reach him through the email below for help to recover your scammed funds and thank me la...

Helping Recover Missing Parts of Private Keys (WIF)

my name is Maud. I'm a cyber security student. I have access to 33 4090 GPUs Doing 20.4K++ TFLOPS with the best specs for these jobs. I would like to help some people that don't have access to this much power recover missing characters of private keys for a tiny % that makes sense and covers my electricity costs. Not helping anyone "Crack" or steal others. We must speak in call and dox each other. Plus show proof you own the bitcoin address. If you know or need to recover lost characters, would love to work! from Recent Questions - Bitcoin Stack Exchange https://ift.tt/TmPh9oQ via IFTTT

Might utreexo starting points be used to trick the users into double spending?

A node is run with utreexod --prune=550 . Let's assume that the attacker tweaked the utreexo starting points? Is it possible for someone transacting before the history of the Bitcoin blockchain has been verified by their utreexo node to double spend? If so, would that be impossible after the initial block download? from Recent Questions - Bitcoin Stack Exchange https://ift.tt/sa5HB3J via IFTTT

Combinatorics of Bitcoin mining: *difficulty* vs number of trials of nonces and $32$ bit nonces

According to this question Mining Difficulty and Leading Zeros the Bitcoin mining problem is to find a string s = (hash of previous block + Merkle Tree Hash + nonce). The current difficulty is roughly to find a small hash which has $19$ or $20$ leading zeros in Hexadecimal. $16^{20}=2^{80}$ which is a huge number and a random number hashed out has a probability $\leq\frac1{2^{80}}$ to have $80$ leading $0$ binary digits. This number is much larger than trillions or quadrillions. However the quoted difficulty of hashing to find leading $19$ or $20$ Hexadecimal digit $0$s is in order of $100$s of trillions. a. Shouldn't the difficulty be roughly $2^{80}$ tries? b. Why is the difficulty number smaller? c. How does the difficulty number related to number of random tries which is roughly $2^{80}$ in the case of $20$ leading zeros? How large in number of bits is the nonce? Isn't it $32$ bits? Is it bigger than $80$ bits? If not how can we try $2^{80}$ possible nonces ...

Error Opening Wallet in Bitcoin Core: Berkeley Environment::Open Failed

I'm encountering an error with Bitcoin Core when trying to open my wallet. The error message I receive is: Berkeley Environment::Open: LogDir=C:\Users\marc_\AppData\Roaming\Bitcoin\wallets[ma****]\database ErrorFile=C:\Users\marc_\AppData\Roaming\Bitcoin\wallets[wallet_name]\db.log Here’s some context about my setup and the issue: Bitcoin Core Version: v22.0.0 Operating System: Windows 10 I was attempting to open my wallet named [ma****] via Bitcoin Core’s GUI,The wallet has loaded but has this Error file.I am still waiting for wallet to sync before upgrading. from Recent Questions - Bitcoin Stack Exchange https://ift.tt/cV9jHMI via IFTTT

Accessing my bitcoin wallet keys from Blockchain.info and decrypting it

I had an old blockchain.info account and I forgot the secondary password. Awhile back I was provided with the bitcoin wallet keys file from some tool i used awhile back called btcrecover. The file contained this, I X'ed out a bunch so it so its not the actual one. I'm not sure what this is and what does it decrypt to. U2FsdGVkX19PW51jBXbZronZxRe4U7eEQIerQn8uEXMGE4n+Wu74OSMAJJFiZVrl25w2PosWQABy JLZwMcoSNlJXSzWvK90wmAj9Ft0arWRtMic0j8+ssp6+ckUxk7As81Ze2A+gpSOiOTttPCnhJev2 Ew9it/Et2Bc5i1sxxxxxxxXXXXXXXXXXXXXXXXXXXXA7N37cPc VQ83Sac= How would I go about accessing my bitcoin and is this just for a single bitcoin private key? from Recent Questions - Bitcoin Stack Exchange https://ift.tt/WQ3TGwI via IFTTT

***Hire Expert Certified Intelligence Cyber Wizard Assets Recovery Company for any job?

I was persuaded to buy cryptocurrency by someone I met online. They have access to a group of analysts who provide reliable predictions for the rise and fall of BTC. I initially attempted with a modest amount just to be sure, and I was successful in withdrawing money twice. This demonstrated a growth in the signals I was receiving. I decided to include corporate funds as well. When I tried to contact the individual at that point, he had banned all of his connections, which is when everything started to go wrong. I tried everything until a friend of mine introduced me to a hacker INTELLIGENCE CYBER WIZARD, a company that helps individuals and businesses recover their stolen BTC assets. They truly helped me to recover everything at an affordable fee and I was exultantly proud and joyful; in high spirits. If you are in the same mess, To learn more about them kindly reach out to them with the details below: E-mail: intelligencecyberwizard (AT) Gmail (DOT) com Mail: intelligencecyberwizar...

Signing a message with a segwit address

After many years, Bitcoin core still does not support message signing using segwit address. Does someone know if this feature will ever come ? from Recent Questions - Bitcoin Stack Exchange https://ift.tt/TvJjZu6 via IFTTT

Bitcoin Core 28.1.0 freezes when I hover the cursor over open or migrate wallet

As per the title. Everytime I hover the mouse cursos over open or migrate wallet the program freezes and I have to end task at the windows task manager. Using windows 10 and btc core 28.1.0 unpruned. Already tried reinstalling the software but no good. Tried downgrading to the 27 version but it says my blockchain is corrupted and ask to download it again. Back to 28 the blockchain is good. Any ideas? from Recent Questions - Bitcoin Stack Exchange https://ift.tt/kRH6osp via IFTTT

The Future of Web3 Development – Transforming Digital Innovation

Web3 development is revolutionizing the internet by introducing decentralization, transparency, and enhanced security. Unlike traditional Web2 applications, Web3 leverages blockchain technology, enabling trustless interactions, smart contracts, and user-owned digital assets. Why is Web3 Important? Decentralization – Reduces reliance on centralized authorities Enhanced Security – Blockchain ensures data integrity and protection User Empowerment – Gives control back to users through digital ownership Innovative Business Models – Enables DeFi, NFTs, DAOs, and more Businesses are rapidly adopting Web3 solutions to improve efficiency, transparency, and user engagement. From finance to gaming, healthcare to supply chain, Web3 is unlocking new possibilities. What are your thoughts on Web3 development? Have you explored any Web3 projects or technologies? Let’s discuss! Visit us here for more:- nadcab.com from Recent Questions - Bitcoin Stack Exchange https://ift.tt/iPVE0kS via IFTTT ...

Unistat Wallet Withdrawal

I have a friend that had bitcoin deposited into the bitcoin testnet on a wallet app called Unistat can this person withdrawal from this wallet? from Recent Questions - Bitcoin Stack Exchange https://ift.tt/Wlzre5i via IFTTT

Old wallet address changed, suspecting a friend,who got more knowledge of Bitcoin

My wallet address was changed,but I didn't do it. I suspect my friend who has more knowledge. So now I want to know,How do I check if transfers was made from my old wallet to an unknown wallet address? Because his not from my country, but a fraudster from another country,who creates Ponzi schemes,to fraud others. from Recent Questions - Bitcoin Stack Exchange https://ift.tt/6FXrtYf via IFTTT

Calculating fee in unsigned PSBT

Running into a chicken-and-egg problem with calculating fees for unsigned PSBT transactions: to calculate the fee, I need the virtual size of the transaction (let's say I have the fee rate in sats/vB from a 3PBP). To calculate the virtual size of the transaction I need the finalized transaction with change output...which requires knowing the fee. The only solution I can think of is signing a dummy PSBT with a dummy change output, get the virtual size, then sign the real PSBT with the proper change output. This seems cumbersome as I'd have to sign multiple PSBTs every time I want to send some Bitcoin. Is there a better way to do this? from Recent Questions - Bitcoin Stack Exchange https://ift.tt/8cBV5zi via IFTTT

Bitcoin Core Can't Get Information from Nodes

9 days ago, I launched Bitcoin core version 27.1. The blockchain has been upgraded until December 10, 2024. The wallet is active but there is no incoming traffic. I closed the wallet normally and restarted it. Here's what I have: The wallet was opened on the same date, and header synchronization began. And no progress. Nodes appear, there is no loading, they disappear, new ones appear, and so on without end. Incoming traffic is zero. There are periodic spikes in outbound traffic. I'm attaching the log: 2025-02-23T13:33:22Z New outbound-full-relay v1 peer connected: version: 70016, blocks=884981, peer=1162 2025-02-23T13:33:33Z New outbound-full-relay v1 peer connected: version: 70016, blocks=884981, peer=1164 2025-02-23T13:33:44Z New outbound-full-relay v2 peer connected: version: 70016, blocks=884981, peer=1165 2025-02-23T13:33:48Z New outbound-full-relay v1 peer connected: version: 70016, blocks=884981, peer=1166 2025-02-23T13:34:19Z New outbound-full-relay v1 peer connecte...

Not able to generate correct P2SH-P2WSH address from given redeem script

can you please provide me the generation code, i am struggling to generate a p2sh-p2wsh address from the given redeem script, actually there is no witness program key given , so is it even possible for me to generate the address which is 32...... in this case, i just wanted to recheck whether my generated address and the given address comes out to be same Transaction Spec Private Key 1: 39dc0a9f0b185a2ee56349691f34716e6e0cda06a7f9707742ac113c4e2317bf Private Key 2: 5077ccd9c558b7d04a81920d38aa11b4a9f9de3b23fab45c3ef28039920fdd6d Redeem Script (ASM): OP_2 032ff8c5df0bc00fe1ac2319c3b8070d6d1e04cfbf4fedda499ae7b775185ad53b 039bbc8d24f89e5bc44c5b0d1980d6658316a6b2440023117c3c03a4975b04dd56 OP_2 OP_CHECKMULTISIG Redeem Script (HEX): 5221032ff8c5df0bc00fe1ac2319c3b8070d6d1e04cfbf4fedda499ae7b775185ad53b21039bbc8d24f89e5bc44c5b0d1980d6658316a6b2440023117c3c03a4975b04dd5652ae Transaction should contain exactly 1 input with: Outpoint: Hash: 00000000000000000000000000000000000000000000000000000...

Withdrawal from Volcano GD Pro will not allow me to withdraw my money until i pay a capital gains tax

I have $30,000 USD in this app. Tried numerous times to withdraw but they are blocking me until i pay$2700 in capiltal gains. from Recent Questions - Bitcoin Stack Exchange https://ift.tt/AcNFbvC via IFTTT

How to safely spend/burn dust?

I am making a tool to safely remove dust UTXOs from a wallet in a privacy-preserving way. My main goals are: Never mix these dust inputs with my other UTXOs, to avoid linking my addresses. Ideally, remove all dust completely, so I'm not left with new dust afterward. Create valid, standard transactions accepted by Bitcoin Core and the network. So far, I have this approach working in regtest mode: Send all accumulated dust to a burn address Idea: Create a transaction with all dust UTXOs as inputs and a single output sending all value directly to a known burn address (e.g., "1BitcoinEaterAddressDontSendf59kuE" ). Issue: If the total dust amount is below the standard amount/fee threshold, this transaction will be rejected. My question How can I safely remove dust UTXOs completely without creating new dust outputs or mixing these dust inputs with my regular funds? Is there a recommended best practice or standard technique for this situation other than simply leav...

Can anyone solve this that i call paradox?

Most of you are familiar with the formula: s1 x k1 = z1 + r1 x d1 mod n If you have two of them related like this: s1 x k1 = z1 + r1 x d1 mod n (1) s2 x k1 = z2 + r1 x d1 mod n (2) There is the formula: (s1 - s2) x k1 = (z1 - z2) mod n (3) to find,k1.And from that d1. There also special cases then you can find d1,from the formula: k2 = k1 - 1 or m,m < n (or) k2 = k1 /2 or m,m < n. Also,i read in many posts here,that k1 and k2 or (in special cases) d1 and d2,can not be related in a algebric and logic way,beacouse of course,will be a formula that will find k1,k2,d1 and d2. Now,i found with a simple derivation a formula: s1 x k1 = z1 + r1 x d1 (4) s2 x k2 = z2 + r2 x d1 (5) a x k1 - b x k2 = c (6) Now the paradox,from my point of view: I admit that my advanced algebra is weak,but i want to make sure that if someone is better then me can help me to prove i am right or prove me wrong and help me and in the end help you,the reader. I can prove without,that i call invis...

Is there a link to node software documentation including system requirements and disclaimers?

Before I download software I like to read various documentation. Are there links to node software documentation including system requirements, disclaimers, licensing, and operating instructions? from Recent Questions - Bitcoin Stack Exchange https://ift.tt/jJuV1r8 via IFTTT

Forgotten sending pin

I have forgotten my sending pin, please can someone help me. I have been struggeling for do long, even tried importing wallet to coinbase with no luck from Recent Questions - Bitcoin Stack Exchange https://ift.tt/6roC3Sp via IFTTT

I have no idea what I am doing. Please help me to understand the process and meaning of Bitcoin and Bitcoin mining!

I do not understand any of this process. I have no idea or understanding of what, how, or why Bitcoin mining works as a system. This would be like me trying to read a foreign language. Please someone help me to understand what I am suppose to be doing on this platform. from Recent Questions - Bitcoin Stack Exchange https://ift.tt/wpHOf9G via IFTTT

Why is a selfish-mining attack with bad propagation (γ=0) still profitable?

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The 2013 selfish-mining paper by Ittay Eyal and Emin Gün Sirer [0] introduces a variable γ: We denote by γ the ratio of honest miners that choose to mine on the pool’s block, and the other (1−γ) of the non-pool miners mine on the other branch. The basic idea is that the attacker pool withholds their block until they learn about a competing block from an honest miner. Since honest nodes prefer the first block they see, this variable expresses the ability of the attacker to race their block in front of the honest block. Specifically this refers to the fraction of miner nodes that see the attacking block first. As explained in their simulation section: We assume block propagation time is negligible compared to mining time, as is the case in reality. In the case of two branches of the same length, we artificially divide the non-pool miners such that a ratio of γ of them mine on the pool’s branch and the rest mine on the other branch. The simulation produces figure 2: I'm co...

I have deposited 292 usdtBep20 to my bybit account but didn't receive when I go to my Blockchain explorer I see it's giving me holdings what is that?

0x2f9b0383441c969ad617773873f529248016994a This is my contract address plzz help me as soon as possible from Recent Questions - Bitcoin Stack Exchange https://ift.tt/yc0p5fM via IFTTT

Can you assign a specific adress that has been used before, to a bought wallet?

I had an old adress which I inadvertently used to send funds to. It was an old adress that was used by my current wallet before I re-set the wallet with a new adress (to incorporate a seed phrase). Can I buy a "clean" new wallet and then use/force the old adress into it? The adress doesnt have a seed phrase but would still have my id particulars. Can I re-add the old adress into my existing wallet? The wallet is a Tangem one. from Recent Questions - Bitcoin Stack Exchange https://ift.tt/Xobliem via IFTTT

How do you contact Robinhood by phone

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How can someone reverse a Bitcoin payment

When a Bitcoin transaction is performed to someone else wallet address, can the payment be reversed? from Recent Questions - Bitcoin Stack Exchange https://ift.tt/8iHCBJw via IFTTT

theft from a wallet [duplicate]

a few hours ago a transaction was made from my wallet and all funds disappeared. I did not make this transaction, the wallet was only on my flash drive and on my work computer (it was checked by antivirus) and was not compromised. Please help. Transaction ID 8ec3bfd5663472d1ad5c661782d06975727cc788859979cff9872f8e0b942609 my funds went to wallet: bc1qezptr6z3n8cr9w7tqnncd4suzzje4ykxkfslr5 from Recent Questions - Bitcoin Stack Exchange https://ift.tt/Zu4UVtE via IFTTT

Tbtc disponibles à petit prix

Vente de tBTC pour Développeurs – Testez vos Applications à Moindre Coût 🚀 Vous développez une application ou un site nécessitant une grande quantité de Bitcoin Testnet (tBTC) ? 💡 Besoin de tBTC en grande quantité pour simuler des transactions et tester vos smart contracts ? Je propose un service de distribution de tBTC en gros pour les développeurs, testeurs et startups ayant besoin de fonds sur le Testnet Bitcoin. Contrairement aux faucets gratuits limités, je peux fournir de grandes quantités rapidement et à prix réduit pour vous permettre de tester efficacement vos applications. ✅ Avantages : ✔️ Accès immédiat à de gros volumes de tBTC ✔️ Prix très bas par rapport aux services classiques ✔️ Idéal pour les simulateurs, dApps et tests de transactions 💰 Tarification flexible selon la quantité demandée. 📩 Contactez-moi en MP pour plus d’informations et pour passer commande. ⚠️ Note : Les tBTC sont des BTC de Testnet et ne peuvent pas être utilisés sur le Mainnet. Ce service es...

Import SafePal to Sparrow Wallet

I am trying to import an already setup SafePal S1 hardware wallet to Sparrow, but I don't see the option, neither on Connected Hardware nor Airgapped Hardware. As far as I'm aware from Sparrow docs and from what I've read before posting this question, there is no "explicit" support at Sparrow for this particular hardware wallet, but if anyone knows whether there is some sort of workaround to import it, I'd be very thankful. from Recent Questions - Bitcoin Stack Exchange https://ift.tt/k9u8zAW via IFTTT

Hello i wish to ask the expert here to check if this payment is real and had been submitted successfully

I received a payment from an electrum wallet to my wallet which is exodus but it hasn't arrived after close to 12hrs from Recent Questions - Bitcoin Stack Exchange https://ift.tt/36LWqxY via IFTTT

GEMINI WON’T UNLOCK MY ACCOUNT! WON’T LET ME TRANSFER/WITHDRAW MY CRYPTO!

I uploaded all the documents they needed and did the self verification and its been weeks that they still keep my account locked. They stopped responding to my email replies. I opened a new ticket and then they just sent me a general statement that they are still working on resolving my "issue". I so regret using that platform. Question: I would sell my crypto and transfer the cash if I need to, but I don't want to if I don't have to. Has anyone else out resorted to that? Will that work? My ticket number is 5188532 from Recent Questions - Bitcoin Stack Exchange https://ift.tt/sXpxkC6 via IFTTT

In transactions with multiple input addresses, can we determine how much each address paid in fees?

In Bitcoin transactions with multiple inputs from different addresses, can we determine how much fee each of these addresses paid? For example, in the following transaction: https://www.blockchain.com/pt/explorer/transactions/btc/da67e1f3c61ca240b9e83a89d039c4a3879c57124c4fe9e2ffe615a49e575830 from Recent Questions - Bitcoin Stack Exchange https://ift.tt/IxlzB1Y via IFTTT

LTC testnet faucet

I have tried a lot but could not get LTC faucet. Actually I need to work with LTC that is why I need testnet LTC balance. I have gone thru many of site where I am being asked to complete some tasks or something like this. But I can withdraw earned test LTC if certain amount is reach. Below is the site link. It would take too much time to reach that threshold. Here one of the link. https://freelitecoinclick.com/ from Recent Questions - Bitcoin Stack Exchange https://ift.tt/BsGWXRY via IFTTT

Crypto recovery

I fell victim to a crypto scam and lost a significant amount of money. What are the most effective strategies to recover my funds? I've heard about legal actions, contacting authorities, and hiring recovery experts, but I'm not sure where to start. Can you provide some guidance on the best ways to recover money lost in a crypto scam? Well if this is you, easyrecoveryassets@gmailcom gat you covered get in touch and thank me later from Recent Questions - Bitcoin Stack Exchange https://ift.tt/ArhNuGH via IFTTT

Bitcoin Testnet token

I urgently need up to 1 BTC testnest token to carry out a certain testnet activity. I just need a link to a faucet where I can get the test token in BTC. from Recent Questions - Bitcoin Stack Exchange https://ift.tt/6T2GMwB via IFTTT

I would like to ask Satoshi Nakamoto if I can find the wallet I purchased

This article is all true and I hope it will be passed on to the head of the Bitcoin operations team. Currently, the laptop where my bitcoins are stored is broken, so I have tried forensic recovery several times and am hoping to be able to recover my wallet. I understand that the Bitcoin wallet address serves as an open key. If so, I think the operations team will be able to recover the address that opened the wallet in October 2023. The wallet contains close to 1.5 million bitcoins. I purchased Bitcoin from Satoshi Nakamoto in December 2008. At that time, in order to purchase Bitcoin, you had to sign up for a Google account, log in, fill out a form, and enter your email address to receive it. The Google ID at the time was abjinny@goole.com, and since it has not been used since, it cannot currently be recovered due to Google's sanctions. I remember the email address where I received the Bitcoin as bluetwoseven@hanmail.com (or abjinny@naver.com). In December 2008, Satoshi Nakamoto ...

Why Bitcoin Core uses checkpoints and not the assumevalid block?

Taking a look at chainparams.cpp (Core v28.0), I noticed that there's a list of checkpoints ( checkpointData L168) with different blocks hardcoded. How are the actually used? According to @PieterWuille in question 3114 they are Legacy and going to be removed. But the answer is 8 years old. Checking the code they are still being used (validation.cpp L4174) when checking block headers (if I understood the code correctly). static bool ContextualCheckBlockHeader(...) { ... // Check proof of work ... // Check against checkpoints if (chainman.m_options.checkpoints_enabled) { // Don't accept any forks from the main chain prior to last checkpoint. // GetLastCheckpoint finds the last checkpoint in MapCheckpoints that's in our // BlockIndex(). const CBlockIndex* pcheckpoint = blockman.GetLastCheckpoint(chainman.GetParams().Checkpoints()); if (pcheckpoint && nHeight < pcheckpoint->nHeight) { Log...

Possible rollback due to lazy reveal in BRC20?

Let's assume user A committed an inscription with {"op":"deploy", "tick": "test"} at block 100 (without revealing it yet). Then user B commits and reveals the exact same inscription at block 101. Because the indexer isn't aware that A's earlier commit was actually for "test," it recognizes B's "test" token as the official one. From blocks 101 to 199, users freely perform various "test" token transactions (e.g., "mint" , "transfer" ). However, at block 200, user A finally reveals their earlier commit. In that case, will the indexer roll back all "test"-related histories that happened between blocks 101 and 199? If so, can we really trust that all BRC20 tokens recognized by the indexer are "safely" the official ones? from Recent Questions - Bitcoin Stack Exchange https://ift.tt/CsYKVTa via IFTTT

How to build a Block Header from pool data?

and thanks in advance for your help! I'm new to the forum, but I've read quite a bit of documentation, and I still can't figure out how to properly construct the block header from the data provided by a mining pool. I'm really interested in mining lately and would like to understand the process in detail. Let's go through a practical example: 1. Subscribing to the Pool When I send mining.subscribe , I receive: [[["mining.set_difficulty","0HN9B1NBLO9DQ"],["mining.notify","0HN9B1NBLO9DQ"]],"2006be21",4] From this, I get: Extranonce1 = "2006be21" Extranonce2 must be 4 bytes (e.g., "c95fc1a9" ). 2. Receiving Work from the Pool After mining.authorize , I receive a mining.notify message: ["00059c50","cd6f21657c8eb8301949442a3fff2e78a9cb857e01b2a0120000000000000000", "01000000010000000000000000000000000000000000000000000000000000000000000000ffffffff1503e4810d0474d9...

Constant freezing of Bitcoin Core when trying to download the blockchain

It all started half a year ago. Bitcoin Core version 22.0 began to hang on a certain date during the next synchronization attempt. I demolished the entire blockchain. I downloaded version 27.1, started syncing with wallet from August 2024, and the issue was resolved. But the situation repeated on February 2, 2025. When trying to download the last Bitcoin Core blocks, it froze on December 31, 2024. Repeated attempts to restart failed. I started the "reindex", it hung after a while. Then I decided to repeat the successful attempt: I demolished everything. I launched version 27.1 and uploaded the wallet from August 2024. But this time the program was suspended for January 2019. I'm currently downloading the blockchain without loading my wallet. Is there any hope in it? So I want to wait for full synchronization and then download the wallet. What could be the reason? The computer where the wallet is located has a 2-core processor, 8GB of RAM and a 2 terabyte hard disk. fro...

Bitcoind support for PKCS#11 Tokens aka. HSM Wallet Signer

anyone has a clue if it is possible for Bitcoind to support a PKCS#11 Tokens aka. HSM Wallet Signer that has secp256k1 curve support ? HWI python project does not seems to support it out of the Box. from Recent Questions - Bitcoin Stack Exchange https://ift.tt/f9IjsGO via IFTTT

how can dumputxoutset and loadutxoutset helpin fast sync

There is not enough docs on these commands. I only have read that it allows to sync a fresh node to the current tip faster and then syncs the whole blockchain in the background. I have tried this but I am getting different types of errors each time. Using bitcoin v28. from Recent Questions - Bitcoin Stack Exchange https://ift.tt/KTCXwpv via IFTTT

Bitcoin Core dropped all connections after working beautifully

First time poster and light on tech. After finally getting Bitcoin Core working on Embrel, it was syncing nicely for about and hour. Then all my connections were dropped (8-9) and the host embrel computer changed the IP after restarting it. The computers are connected via ethernet, and Bitcoin Core says its still running. Any help would be appreciated! from Recent Questions - Bitcoin Stack Exchange https://ift.tt/0aGcV1E via IFTTT

I need help linking wallet to my newly established Bitcoin Core node

I am running a Bitcoin Core node (28.1) and I wish to use it as a server for my wallet. My node is running on a dedicated desktop running Windows 10. It is clearly accepting peer connections (10 peers) but for some reason I can't connect to it from my wallet. Also, no luck using the tool at https://bitnodes.io/nodes/addresses/ . I get an error "Enter a valid IP address" even though the IP address is correct. I have reviewed my wallet's documentation on connecting to Bitcoin Core, but I still cannot get my wallet to connect. It connects OK to various public servers. Any help would be appreciated. from Recent Questions - Bitcoin Stack Exchange https://ift.tt/o1dTbaV via IFTTT

Are you just holding someone else's bag?

Is crypto a zero sum game? I feel like most projects being launched whether by potus, flotus ... are mostly just cash grabs. BTC is more of a speculative currency at this point from Recent Questions - Bitcoin Stack Exchange https://ift.tt/FSDyXzI via IFTTT

How to recover lost cryptocurrency

Scammers have ruined the forex trading market, they have deceived many people with their fake promises on high returns. I learnt my lesson the hard way. I only pity people who still consider investing with them. Please try and make your researches, you will definitely come across better and reliable forex trading agencies that would help you yield profit and not ripping off your money. Also, if your money has been ripped-off by these scammers, you can report to a regulated crypto investigative unit who make use of software to get money back. If you encounter with some issue make sure you contact ( easyrecoveryasset@gmail.com ) they're recovery expert and a very professional one at that. from Recent Questions - Bitcoin Stack Exchange https://ift.tt/gZfm7VQ via IFTTT

Why is the quick withdrawal process suspended for a long time?

When withdrawing the amount via express withdrawal, it did not arrive and is still waiting, knowing that it is supposed to arrive in 15 minutes. Please see. enter code here from Recent Questions - Bitcoin Stack Exchange https://ift.tt/jbu4A2f via IFTTT

When calculating the public key, what principle is used to take the even or odd y coordinate for x?

I don't understand the principle of selecting y coordinate from 2 possible options: even or odd For example: priv key = 5 y even priv key=6 y odd Why? from Recent Questions - Bitcoin Stack Exchange https://ift.tt/TwHagGc via IFTTT

Look at a normal tutorial on Bitcoin bought for $100

I bought a Bitcoin tutorial for $100. Many people say that such books are a waste of money, because the Internet is already full of information. But there are nuances here... There are things in this textbook that I did not find in the public domain. Want to know what's inside? See for yourself!https://bit.ly/4hrffO3 from Recent Questions - Bitcoin Stack Exchange https://ift.tt/oMRUQxZ via IFTTT

Unable to generate address after importing Taproot multisig descriptor

I have 3 wallets that I use to create a Taproot multisig wallet. All my work is based on this https://github.com/bitcoin/bitcoin/blob/master/doc/multisig-tutorial.md . Here are the external and internal xpubs for each one: Wallet 1 (external + internal xpubs) [11776e3b/86h/1h/0h]tpubDCTp9moNmiVHK9KS6j6HEyU9duvomZrE87wTNQMkcZktDu89f3yJFATEQovpsT8KwUDWhut5YYd3zNsUYuv6sGHLozsub1AHPoyL7uGW2LT/0/* [11776e3b/86h/1h/0h]tpubDCTp9moNmiVHK9KS6j6HEyU9duvomZrE87wTNQMkcZktDu89f3yJFATEQovpsT8KwUDWhut5YYd3zNsUYuv6sGHLozsub1AHPoyL7uGW2LT/1/* Wallet 2 (external + internal xpubs) [fe5187e5/86h/1h/0h]tpubDCqr5GVKeptzMG5QKLu1aQKXFXgF6kMy9dYDQ6Nap6emZ3iziMCeVX1pPjEzA7nTmyZS9NP2KjUsGtEs8jNqFcUTpKxAwXPB3yfbee4RthM/0/* [fe5187e5/86h/1h/0h]tpubDCqr5GVKeptzMG5QKLu1aQKXFXgF6kMy9dYDQ6Nap6emZ3iziMCeVX1pPjEzA7nTmyZS9NP2KjUsGtEs8jNqFcUTpKxAwXPB3yfbee4RthM/1/* Wallet 3 (external + internal xpubs) [9f5cbc68/86h/1h/0h]tpubDDQbi15GQjXYxhAysxdEC6VsSFacJ6hgDAJ7oQy4wUs9sfwMQWtcLqLx7GUbBfWyVwUYMEEJtWmxFXmpmjQL8X4cR...

Why are there new descriptors? How do I select the desired descriptor to be active?

Immediately after creation, there are 8 (pub) descriptors in the wallet. Of the first descriptors, no more than two addresses are used. After a while, there are already 16 descriptors, while the "old" descriptors become inactive and new addresses are seeded from the new descriptors. Where do the new descriptors come from? How do I select the desired descriptor to be "active"? from Recent Questions - Bitcoin Stack Exchange https://ift.tt/14oP9dA via IFTTT

mandatory-script-verify-flag-failed (Invalid Schnorr signature) error when creating a child inscription in a Taproot transaction

I am trying to create a child inscription in a Taproot transaction but I am encountering the following error: sendrawtransaction RPC error: {"code":-26,"message":"mandatory-script-verify-flag-failed (Invalid Schnorr signature)"} I have checked all the data, including the transaction structure, signature, and Taproot script, but the error persists. The input refers to the parent UTXO: { "txid": "02cde20c6db772c9ddced410c52cb2bdcbf476016fa398cfa1ac5207f1ff462f", "vout": 0, "value": 546, "scriptPk": "5120932a0391d2ec13cb8f303ded9297ece089f739b3ced40bc98eebdd277fdb9c9d", "address": "tb1pjv4q8ywjasfuhres8hke99lvuzylwwdnem2qhjvwa0wjwl7mnjwsdqu3e0" } The output sends 546 satoshis to the recipient address. The Taproot script for the child inscription includes: The parent inscription data (inscriptionId). Metadata for the child inscription. const childOrdinalStacks = [ ...

My device is too old to process the transaction

On the Google Play app, I see the message: 'This app is no longer compatible with your device. Please contact the developer for more details.' I would like to transfer to another device. Could you please tell me how to do that?" from Recent Questions - Bitcoin Stack Exchange https://ift.tt/6ThufZY via IFTTT

bitcoin core doesn't executing commands

I joined the Bitcoin community early, between 2011 and 2014. Unfortunately, college took most of my time, so I couldn't continue mining and trading. I had 8–10 old wallets, many of which contained a significant amount of Bitcoin. When I attempted to recover my old laptop and PC hard drives, I managed to retrieve three of those wallets. Fortunately, they still hold balances: 1.2 BTC, 1.00 BTC, and 0.2 BTC. However, the issue is that I have been unable to access my private key files, leaving the balance stuck. now I remember my passphrase, but after executing the command, nothing happens. Only a blank line appears, and the command doesn't proceed." from Recent Questions - Bitcoin Stack Exchange https://ift.tt/QLV6OFY via IFTTT

old miming wallets recovery

I joined the Bitcoin community early, between 2011 and 2014. Unfortunately, college took most of my time, so I couldn't continue mining and trading. I had 8–10 old wallets, many of which contained a significant amount of Bitcoin. When I attempted to recover my old laptop and PC hard drives, I managed to retrieve three of those wallets. Fortunately, they still hold balances: 1.2 BTC, 1.00 BTC, and 0.2 BTC. However, the issue is that I have been unable to access my private key files, leaving the balance stuck. How can we solve this problem? from Recent Questions - Bitcoin Stack Exchange https://ift.tt/pAnN8V7 via IFTTT

Bitcoin Received and Spent at Same Time When Trying to Withdraw

Total newbie here. I tried to withdraw coins HTX that I had for a while. It shows transaction is complete with a corresponding TXID. However, in my wallet it shows that I received the amount and then immediately spent the same amount (so that I don't have bitcoin in my account right now). Anyone knows what's going on and how to fix it? Thank you. from Recent Questions - Bitcoin Stack Exchange https://ift.tt/PdHlwnh via IFTTT

Convert private key to Bitcoin Cash address

Let's say I have 32 bytes = 64 hex digits private key. Normally, for Bitcoin, I add 0x80 byte before first byte and convert the result to WIF with Base58Check encoding. This gives me 5 at the start of the WIF string. Then I can convert this WIF to public key, later to the address. For Bitcoin all addresses are starting with 1 , 3 or bc1 . But for Bitcoin Cash we have addresses starting with p or q . How can I convert private key to Bitcoin Cash WIF and later to public key and address? Best would be Python 3 program. from Recent Questions - Bitcoin Stack Exchange https://ift.tt/f4Tz2VD via IFTTT

What will be the value of S, R, Z for this Raw Trasaction

4830450221009b5f9ba949bdafb391e43c4ef6927f3d21dde658d0e83b26b2404d77c4e0802d022061eb91f32b29acdca8908276c81a839b6f2b56a71c27bfcc83a88b0327606a0d01210367be6320d68fc38b6844407e6ef9d5b3b11fb24ecb5d005639469818b39cf918 47304402200a1e27b4381a92b9cfe36bb3309e7e06bcf64c90715f750f5cc2e4ae512d4e1602204dba35cae0917367b1087afbed25d5dd127d015a650c6e27889276016e648eb901210367be6320d68fc38b6844407e6ef9d5b3b11fb24ecb5d005639469818b39cf918 from Recent Questions - Bitcoin Stack Exchange https://ift.tt/zO7Symf via IFTTT

How does tether on bitcoin work?

I've seen the news that Tether is integrating with bitcoin. But what does this really mean and how does it work? They say there will be both on-chain and lightning transactions. I can see how lightning transactions would happen if on-chain transactions can happen, but how can tether transactions happen on the bitcoin blockchain and how is this connected to the tether network? I could imagine that maybe this is a colored coin kind of thing where the tether network monitors the bitcoin network for cross-network transfers. Is that basically what's going on? from Recent Questions - Bitcoin Stack Exchange https://ift.tt/ZsP5nGq via IFTTT

Named arguments in Bitcoin-qt console window not working

In the bitcoin-qt Console node window, when I try createwallet wallet_name="test wallet" descriptors=false , I get: Error: Error parsing JSON: descriptors=false How can I use named arguments properly in the console? from Recent Questions - Bitcoin Stack Exchange https://ift.tt/CqBmuWR via IFTTT

Duplicate account private keys from bip32 / bip44 derivation

From the BIP32 spec, In case parse256(IL) ≥ n or ki = 0, the resulting key is invalid, and one should proceed with the next value for i. (Note: this has probability lower than 1 in 2^127.) and it seems that the bip32 library automatically selects the next i in the sequence: // if parse256(IL) >= n, proceed with the next value for i if (!ecc.isPrivate(IL)) return this.derive(index + 1); ( permalink ) Does this mean that when deriving the keys for different accounts, if at the account level (as per BIP44) an i is "skipped", the "skipped" account and the next valid account will have the entirely same tree of keys? from Recent Questions - Bitcoin Stack Exchange https://ift.tt/UZJln76 via IFTTT

Recovering a forgotten wallet from a backup

I have recently found an old drive that has a backup of a Bitcoin core wallet from back in 2009. Sadly I forgot all the passwords/phrases connected to it. Is it possible to somehow recover information from the backup files? from Recent Questions - Bitcoin Stack Exchange https://ift.tt/kaxc6K9 via IFTTT

Serialize a deterministic key to vpub and deserialize it back

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I am trying to write a simple Java application using BitcoinJ to derive one child publickey and get its extended version (vpub as I am testing in Testnet and I want to support SegWit) and then be able to deserialize the vpub back to a deterministic key. But when I check their output, pub and chain code look the same but the other attributes like path, creationTime and rest are not the same. What am I doing wrong? Am I missing something completely? Here is the code snippet and the outputs public static void main(String[] args) throws Exception { NetworkParameters params = TestNet3Params.get(); String mnemonic = "abandon abandon abandon abandon abandon abandon abandon abandon abandon abandon abandon about"; DeterministicSeed seed = new DeterministicSeed(mnemonic, null, "", 0); DeterministicKey masterKey = HDKeyDerivation.createMasterPrivateKey(Objects.requireNonNull(seed.getSeedBytes())); DeterministicHierarchy hierarchy...

Workable python function to generate P2SH address from Private Key 0x01

I am a new developer trying my best to learn something about bitcoin blockchain. I have trouble with generating P2SH (and P2WSH), let's say: Given private key = 0000000000000000000000000000000000000000000000000000000000000001 Blockchain shows that: + Address (p2sh): 3JvL6Ymt8MVWiCNHC7oWU6nLeHNJKLZGLN + Script Hash: bcfeb728b584253d5f3f70bcb780e9ef218a68f4 But unfortunately, I cannot reproduce the same address, despite trying all the method: + Compressed public key + Uncompressed public key + Single Single-Sig (OP_DUP OP_HASH160 <pubKeyHash> OP_EQUALVERIFY OP_CHECKSIG) + “1-of-1 Multisig” (OP_1 <PubKey> OP_1 OP_CHECKMULTISIG) But I cannot get the address 3JvL6Y--ZGLN as above, it always returns somethings else. Can you help me with a workable Python script? Chain explorer: https://blockchain.com/explorer/addresses/btc/3JvL6Ymt8MVWiCNHC7oWU6nLeHNJKLZGLN from Recent Questions - Bitcoin Stack Exchange https://ift.tt/fty9nXH via IFTTT

Bitcoin Core зависает на определенной дате

27 января 2025г. я обновлял блокчейн последний раз и штатно завершил работу Bitcoin Core версии 17.1. 2 февраля этого же года я запустил Bitcoin Core и синхронизацию. Bitcoin Core стабильно качает блокчейн до 31 января 2025г. и затем зависает. Сделал несколько попыток. До этого у меня была версия 22. Там была похожая ситуация. Я скачал новую 17.1 версию и по новой скачал блокчейн. Ситуация решилась. Но при подгрузке wallet.dat вышло сообщение что он устарел.. Но все же загрузка прошла и доступ к активам я получил. Как поправить ситуацию? from Recent Questions - Bitcoin Stack Exchange https://ift.tt/7f10oOq via IFTTT

How can I publish an old state of a channel?

Let's say that I operate two lightning nodes both running Core Lightning, with an open channel between them. By accident, one of the nodes (node A) goes offline forever and I lose all access to it, and it just so happens that the channel balance is such that almost all of the satoshi balance is in node A's favor. On the other node (node B), I have an old channel state which is more favorable to node B in terms of channel balance. If I could publish this old channel state, I wonder if I could potentially recover some of the funds lost due to the accident. How can I publish this old state using Core Lightning and close the channel in node B's favor, recovering some of the lost funds? from Recent Questions - Bitcoin Stack Exchange https://ift.tt/MurpKoL via IFTTT

I can't create child inscription(NFT) in bitcoin network? ("mandatory-script-verify-flag-failed (Invalid Schnorr signature)"})

I create parent inscription successfully but I can't create nft Transaction ID: sendrawtransaction RPC error: {"code":-26,"message":"mandatory-script-verify-flag-failed (Invalid Schnorr signature)"} import * as ecc from 'tiny-secp256k1'; import * as bitcoin from "bitcoinjs-lib"; import * as cbor from 'cbor'; import { Wallet } from "./wallet"; import { Client } from "./client"; import { tweakSigner } from './utils'; bitcoin.initEccLib(ecc); const SEND_UTXO_LIMIT = 100; const TESTNET_FEERATE = 20; export class Nft extends Client { collectionAddress: string; parentInscriptionTXID: string; constructor({ collectionAddress, parentInscriptionTXID }) { super(); this.collectionAddress = collectionAddress; this.parentInscriptionTXID = parentInscriptionTXID; } async deploy(wallet: Wallet, { metadata, commonContentUrl, itemOwnerAddress }) { const txidBuffer = Buffer.from(this...

New standard liberty

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Did anyone take up the offer of buying 100 usd worth of bitcoin in late 2009? If someone was serious about buying all 15000 bitcoins on new standard liberty, would they have sold all these coins for 100 usd or not? No one took up the offer? So even if someone offered 100 usd for all 15000 bitcoins no sale wouldve proceeded? from Recent Questions - Bitcoin Stack Exchange https://ift.tt/3qMXxHP via IFTTT

I can't create NFT because ```mandatory-script-verify-flag-failed (Invalid Schnorr signature)"}```?

I create collection successfully but I can't create nft import * as ecc from 'tiny-secp256k1'; import * as bitcoin from "bitcoinjs-lib"; import * as cbor from 'cbor'; import { Wallet } from "./wallet"; import { Client } from "./client"; import { tweakSigner } from './utils'; bitcoin.initEccLib(ecc); const SEND_UTXO_LIMIT = 100; const TESTNET_FEERATE = 20; export class Nft extends Client { collectionAddress: string; parentInscriptionTXID: string; constructor({ collectionAddress, parentInscriptionTXID }) { super(); this.collectionAddress = collectionAddress; this.parentInscriptionTXID = parentInscriptionTXID; } async deploy(wallet: Wallet, { metadata, commonContentUrl, itemOwnerAddress }) { const txidBuffer = Buffer.from(this.parentInscriptionTXID, 'hex'); const inscriptionBuffer = txidBuffer.reverse(); const metaProtocol: Buffer = Buffer.concat([Buffer.from("parcel.bit...