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Trying to build cgminer with --enable-ants2 options gives bitmain link errors

I am getting these linker errors when trying to build cgminer in Mac OS 12.3.1 for antminer s2 with these options: ./autogeh.sh export CFLAGS="-O2" ./configure --enable-ants2 Undefined ...
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  • 205
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0 answers
6 views

What software does this wallet belong to? [migrated]

I have a wallet from an older Ethereum client that has this contents {"version":3,"id":"28fa9e4a-04ef-42ae-96de-661915a7c13d", "address":"...
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  • 1
0 votes
1 answer
50 views

How does bitcoin wallet's backup restore forwarding transactions?

I've installed bitcoin wallet on my phone and had some transactions. I backed up my wallet and after backing up did some another transactions. I supposed that the back up just would restore my wallet ...
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1 answer
75 views

How can I recover my private key?

I have a part of an UNCOMPRESSED private key. Starts at 5, missing 10 characters at the end. I saw the code on this forum and used it in python. But when working with my key, it gives out 2 incorrect ...
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17 views

SQLite 3.0 implementation for wallet

I'm currently asking for how bitcoin wallet.dat over SQLite are generated? I know what wallets.dat are containing. However, I would like to know some key / value with hexadecimal structure which would ...
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  • 69
0 votes
1 answer
51 views

I deleted my bitoin wallet many years ago near the start [duplicate]

I know which pool I was a member of and maybe i should ask them instead? I'm trying to find out how or if i can recover them I had 3 Bitcoins way back at the begining back when gpu mining was a thing. ...
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2 answers
58 views

How to find xPub from wallet address

I'm trying to find a master public key (I believe this is the xPub) of an electrum wallet I no longer have access to. This is ok, I've moved all BTC from there. The thing is, I need the public key to ...
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  • 101
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1 answer
34 views

How does blockchain decide the complexity of proof-of-work [duplicate]

I heard that the complexity of proof of work in blockchain can vary. On what factors does it depend? Is it possible that that proof of work i.e. the required hash starting with certain number of zeros ...
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1 answer
63 views

Where to look for the lost BTC

My Tx on btc-testnet seems not transact all the BTC, but there's no UTXO back to my address. How to find the rest of the BTC? Tx 7e0cc1e5c944355e6d448de19a67421eef2a6b4ca4ed58fcd990ce75f66d07a9 1 ...
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  • 25
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0 answers
39 views

How to connect multiple LND noeds on different machines to a single Bitcoin Core?

I have an AWS EC2 instance. The instance has Bitcoin Core (Testnet) node and a LND node. It is working fine. Now, I want to install another LND on a different EC2 instance, but connect it to the same ...
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  • 1
1 vote
2 answers
46 views

Broadcasting fake Lightning channels

As I understand it, right now every public Lightning Network channel must be tied to a UTXO. This is required in order to prevent nodes from spamming the gossip network with nonexistent channels, but ...
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1 vote
0 answers
68 views

Bitcoin v23 is 10 times slower than v22 on macos for basic regtest tests

This is how I start the node (I always start it from a clean state): rm -rf /tmp/regtest1/bitcoind mkdir -p /tmp/regtest1/bitcoind #/Applications/Bitcoin\ Core\ 22.app/Contents/MacOS/Bitcoin-Qt \ /...
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  • 111
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0 answers
22 views

Connection error

i have installed bitcoin node, it was syncing before i went to sleep, i want to know the percentage of the synced, anytime i query on the bitcoin-cli getblockcount ,i get this error " error: ...
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0 votes
1 answer
55 views

What is the workaround for high transaction fees

I wanted to transfer BTC from coinbase to Celcius for the APY, but it costs me 0.0003 BTC just to transfer this money. That's like $5. What is the workaround for this? How can I transfer money with ...
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  • 103
0 votes
1 answer
49 views

Why does the network allow a fraudster (double spender) to broadcast a transaction to a single node (the victim)?

Let's assume for the sake of argument that a fraudster is able to create blocks faster than the rest of the network. Given that, they would be able to achieve double spending by making a fraudulent ...
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-1 votes
0 answers
53 views

Why does Bitcoin Core exclude the transaction fee from the exported CSV?

Open Bitcoin Core. Click the "Transactions" tab. Click the "Export" button. Inspect the saved .csv file and behold its columns: "Confirmed","Date","Type&...
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  • 1
1 vote
1 answer
56 views

electrum doesn't start with new ubuntu 22.04. It needs libfuse

I have new installation of ubuntu 22.04 LTS. When tried to start electrum I get the following error: dlopen(): error loading libfuse.so.2 AppImages require FUSE to run. You might still be able to ...
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0 answers
17 views

Not Receiving BTC transaction in my Ledger Wallet after reusing a previous receiving address from my Coinbase account

I attempted to BTC from my Coinbase account to my Ledger Wallet using the previous receiving address. I did not use the QR code from Ledger to create a new receiving address. I clicked on the previous ...
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  • 1
0 votes
1 answer
49 views

Why is a nonce enough to be 64 bits?

As far as I can understand the resulting hash should start with difficulty number of zeroes before a block can be mined. That is: H(HashOfPreviosBlock + nonce) < target but why is a 64 bit number ...
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0 answers
14 views

Import keys into mobile Electrum?

How do I import public/private key-pairs into the mobile Electrum client?
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  • 4,307
1 vote
1 answer
28 views

Generate Random Bitcoin Addresses from my own Extended Public Key with Coinb.in Wallet

I'm customizing https://coinb.in/ wallet. var compressed = coinjs.compressed; coinjs.compressed = true; var coin = coinjs.newKeys(); // keys are changing... var sw = coinjs....
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1 vote
1 answer
40 views

What is a sane Miniscript? How does it differ to a valid Miniscript?

What is a sane Miniscript? How does it differ to a valid Miniscript? This was asked during a Bitcoin Core PR review club on Miniscript hosted by stickies-v on May 18th 2022.
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0 answers
25 views

Bitcoin Mining Adder optimised with hardcoded constant

I've been reviewing Intel's paper Bonanza Mine: an Ultra-Low-Voltage Energy-Efficient Bitcoin Mining ASIC where they claim to have a completion adder optimised with a hardcoded constant that is unique ...
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1 vote
1 answer
34 views

Using bitcoind json-rpc with multiple wallets

Since some time bitcoind can have more wallets, there are commands: https://bitcoincore.org/en/doc/22.0.0/rpc/wallet/loadwallet/ and https://bitcoincore.org/en/doc/22.0.0/rpc/wallet/listwallets/ Does ...
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-1 votes
1 answer
47 views

In future will multiple widely used implementations around libbitcoinkernel be an overall net positive or net negative for the ecosystem?

Assuming the libbitcoinkernel subproject of Bitcoin Core is completed and successfully/safely extracts the consensus engine out of Bitcoin Core will having multiple widely used alternative ...
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17 votes
6 answers
7k views

Can I use Bitcoin to permanently prove that "there exists a file with content at this point of time"?

I have some files (e.g. of 10MB in size, think of it as a paper, an article, a photo, etc), and want to permanently prove that "at 2022.05.24, I already come up with such a file with such content&...
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  • 271
1 vote
2 answers
82 views

Where does this 2^32 come from?

Several months ago I was doing research into calculating mining revenue for several crypto currencies. When trying to calculate BTC revenue I found this value 1/2^32 which was described somewhere ...
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  • 43
1 vote
0 answers
27 views

LSP best practices

The problem of getting inbound liquidity on the Lightning Network has given rise to Lightning Service Providers, essentially node operators on the Lightning Network, that provide new nodes with ...
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1 vote
0 answers
28 views

Why would users want to submit a transaction directly to a specific miner?

I am wondering why some users are interested to send their Bitcoin transactions to a specific miner? This should increase the delay because of waiting for the specific miner to win. Are there any ...
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  • 87
1 vote
1 answer
33 views

Is there any privacy issue in doing this hard-to-summarize thing with Bitcoin Core?

I have a "hot" wallet.dat with no password, with a small amount of satoshis. Recently, I transferred them all over to my Bisq wallet temporarily to make trades. So the hot wallet.dat has 0 ...
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1 vote
1 answer
28 views

What's the difference between anonymous and pseudonymous electronic money?

You often hear people say that Bitcoin is a pseudonymous system, and that it's not anonymous. What is the actual difference in the context of electronic money? Pseudonymity means that you can see the ...
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3 votes
2 answers
190 views

How can a private key be imported to a descriptor wallet?

If the Bitcoin Core Wallet Migration Tool is supposed to be creating descriptors for sparse keys (as it's supposed to support pre deterministic wallets), then why doesn't Bitcoin Core allow using ...
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  • 340
0 votes
0 answers
33 views

Is it possible to do OP_MOD with OP_GREATERTHAN and a few other opcodes?

Currently OP MOD is considered nonstandard in the Bitcoin protocol, but we can for example combine OP SHA1 and OP GREATERTHAN to gain a similar effect. https://www.cs.technion.ac.il/~idddo/...
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1 vote
1 answer
31 views

Reasons not to rename scriptPubKey and scriptSig to something more intuitive?

I realize that this is how Satoshi named them and there was some reasoning behind these names, but even after years of using them, I find them weird and confusing, especially when e.g. explaining them ...
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  • 281
1 vote
1 answer
132 views

mainnet wallet will refuse to dump privkeys

I created a new wallet in Bitcoin Core v23.x, as expected it created an empty wallet version 169900 descriptors true format sqlite. It seems it created 4 streams of 1000 keys each. Anyway I told it ...
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  • 340
0 votes
1 answer
31 views

Searching The Blockchain Based on Transaction Amount and/or Date

I know there are a lot of services to look up if I have the wallet address or transaction ID. But, let's say I have no idea who the sender or receiver were nor a transaction ID but I know ...
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  • 101
0 votes
1 answer
55 views

Repeating identical outputs in bitcoin transaction

I am building a script that is indexing all bitcoin transactions in real time with all their details etc. But I am looking here at this transaction - https://www.blockchain.com/btc/tx/...
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  • 27
0 votes
1 answer
26 views

Pruning Blockchain and creating multi wallets

I am trying to determine if I could use pruning blockchain option on my future bitcoin node or not. I will create a multiple wallets by RPC calls and I need to be able to check the history of ...
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0 votes
0 answers
26 views

Withdrawal problem [duplicate]

I think I trusted the wrong person and now after an amount of money that I transfer ,I see my „profits“ but I can’t withdraw them. I don’t know how. Can someone help me? The person I’ve spoken to Im ...
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0 votes
0 answers
14 views

How to make transaction validator

How can I make a transaction validator on my website: verify if the client has paid, in order to give him access to premium content, I hope and you understand me.
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  • 1
4 votes
1 answer
180 views

Why isn't `OP_CHECKMULTISIG` compatible with batch verification of schnorr signatures?

BIP342 defines OP_CHECKSIGADD as a replacement for OP_CHECKMULTISIG. In the footnote it's mentioned that OP_CHECKMULTISIG is not compatible with batch verification, but I can't understand why and I ...
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1 vote
0 answers
50 views

How loud (dB) are BTC ASIC facilities/rooms/shelves?

I am just trying to get an idea of how loud (dB) these ASICs are when many of them are grouped up in an area. I know it may vary quite a lot based on the number of ASICs, size of the area, and many ...
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  • 43
0 votes
0 answers
15 views

How well does electrum scale with long term use and many UTXOs?

Let's say I've been living in a bitcoin utopia for a decade and I've been using electrum for all my financial dealings during this time (e.g. to receive my salary, get paid for contract work, pay for ...
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1 vote
1 answer
52 views

Is weighed multi-sig wallet possible?

In a multi-sig wallet, each of the public keys is unique. Is it possible to create weighted multi-sig wallet, such that one private key has more power than the others? Case 1: typical Example (need 2 ...
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0 votes
1 answer
30 views

Can multisig wallet can be fooled by adding one more key?

Please consider this scenario. I agree with other party that we will create 2/2 multisig wallet, so we can only spend funds from that wallet together. The other party will create its wallet, generates ...
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  • 47
0 votes
1 answer
48 views

Shasum output of signature keys not matching

My shasum output does not match ANY keys listed on https://github.com/bitcoin/bitcoin/blob/master/contrib/builder-keys/keys.txt ? shasum -a 256 bitcoin-22.0-osx-signed.dmg ...
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  • 11
1 vote
1 answer
58 views

GPG Suite cannot find Thomas Voegtlin's public key for Electrum

I'm trying to reinstall Electrum but cannot find Thomas Voegtlin's public key using GPG Suite, so cannot verify the downloaded Electrum software. Do I just need to keep trying or is there an ...
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  • 33
1 vote
1 answer
27 views

Upper limit on BTC PoW hash rate?

Is there an upper limit on the amount of hash rate for Bitcoin's Proof of Work? Is there a big difference security-wise going from 175 EH to 275 EH?
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  • 11
2 votes
2 answers
39 views

How to know which block I am mining solo in bitcoin core wallet?

How to know which block I am mining solo in bitcoin core wallet? How do I know which block I'm in? And how to know how many blocks are left for me to mine 1 whole block by myself?
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1 vote
0 answers
27 views

Blockchain app won't let me send bitcoin because it says there's nothing in the wallet, yet I have $40 in there [closed]

Like the title says, it won't let me send any bitcoin through the "Send" function of the blockchain app, and only prompts me with the "Buy Crypto" button, but I have $40 in the ...
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