All Questions

I know we can see the trade flow of BTC trades. Is it somehow possible to associate each trade to a waller? Ie. the initiator of the trade?

Let's suppose that I can only reach one anonymous node in order to communicate my transaction to the rest of the network. The reason could be related to some global catastrophe resulting in ...

I'm a newbie to this community. I have been trying to download all the blocks and be a full node, but I cannot connect to peers. I checked my firewall and there seems no problem, and tried to add node ...

Can you make decentralised systems, e.g. cryptocurrencies or serverless games, that aren't susceptible to 51% attacks by design? (Rather than, as I've seen proposed, external solutions like fining ...

I'm trying to check the public key which lies in the ScriptPubKey of output #0 of transaction #1 bloc #9 with openssl. I'm using Python to create a DER file, and openssl to check it. ScriptPubKey ...

Bitcoin Core provides a builtin feature by which Berkeley DB Bitcoin Core legacy wallet files can be encrypted with a passphrase. Can the same or similar be done to Bitcoin Core descriptors wallet ...

I used to code when i was 14 and i was good at it but it was all copmletely basic that i did on my own, but then due to health reasons i gave up on it as my eyesight kept deteriorating. I want to make ...

I'm creating an AI controlled bitcoin miner but I'm having trouble manually & locally creating a midstate function to be used for optimizing the mining process. Basically I've created independent ...

Let's say I have two Ledger hardware wallets. Can I use the same seed phrase on both simultaneously and be able to work with my crypto on either whenever I want having access to the same accounts?

Based on Binance API docs, deposits in Binance have 3 statuses PENDING, SUCCESS, and another status named CREDITED BUT CANNOT WITHDRAW. I want to know when CREDITED BUT CANNOT WITHDRAW happens and why?...

Can multiple blocks be sent in a single block message in response to the GetBlocks message, or will a new Block message have to be sent for every block? Thanks.

I configured the I2P according to this answer on Ubuntu 20.04 and 21.10. But I have been getting the following error when I try to connect to any I2P peer: I2P: Error connecting to ...

From reading Lannquist,2020, p.7, I saw one of the benefits of DLT( Distributed Ledger Technology) is to support "smart-contract", which is a driven wholesale CBDC application. (CBDC:Central ...

The way I've understood Schnorr signatures is that multiple parties can combine their signatures into a one shared signature, thus obfuscating the number of participants involved in the signature ...

How to get Z Value from Bitcoin Transaction when there are multiple inputs. (Program on github find R S Z sigs for only first input from transaction, Other Sites which used to perform these are all ...

I want to do a transaction, but I see that the receiver doesn't get the amount sent. The regtest node started bitcoind -rpcuser=test -rpcpassword=test -regtest -rpcport=16591 -fallbackfee=0.000045 My ...

I am creating a Bitcoin transaction in C# using NBitcoin library. How do I pass data when building a transaction using "Transaction" class? I can see the parameters for inputs and outputs ...

The two most popular sites for doing this are down which are https://2coin.org/ and https://2xoin.com/getRSZfromRawTX/ with no indication they'll ever return to be usable. Can anyone here link any ...

This tool- https://github.com/ca333/rng-scanner isn't working. The owner, ca333, hasn't updated it since 2015. Someone else pointed out the same error I had. "Traceback (most recent call last): ...

I have created this public key LUv2h4kHH21bJSmab2UAvBarLmSckWFASS in a mobile app called litewallet.io which can be found here https://litewallet.io/ but I do not see an option in litewallet to ...

How do I resend a transaction with RBF on a Bitcoin Core node v.19 or v.20. I am running it on Ubuntu.

I'm trying to understand how to validate the first non-coinbase transaction, that is transaction 1 of block 169, as it was validated in the old days. This transaction has one input, which decoded ...

I have an old pc with Atom N270 that I would like to use as full node, how can I do that?

Before taproot when we had a multisig transaction the vout had an array of addresses(Image 1). Now, this multisig transaction in Bitcoin core v22.0 is represented only as a multisig type without the ...

I'm getting this error below when trying to broadcast a transaction with the code below. I'm new to blockchain development and I've been trying to solve this but can't seem to figure it out. I believe ...

I saw some transactions where an input address also appears as an output address. For example, this transaction has one input and three outputs. Input Address/Amount Output Address/Amount ...

How long do we will have the -deprecatedrpc=addressess flag for Bitcoin core. Is it just for the v22.0 or will it be available for all minor and patch releases until v23.0?

Now the node use Bitcoin Core 0.21.1.

I understand that transactions go into mempool and a miner "verifies" the transactions such as ensuring the user has the appropriate funds and correct signature. Specifically, how are ...

sighnature details: Z(hash of a message ?): 2bd8e1dfd43c0dcdb7310a2d29312a3a61c1430cf0b05df31069335f34e4a591 RS: ...

I'm new at btc mining and I'm still learning. I'm almost medium level in python. I'm looking for a python miner that automatically mines using the last block and stops when a new block is found and if ...

I understand that if nonces (usually denoted k in the signature algorithm) are related signing with the same public key that this reveals information about the private key. I would like to get a ...

Could anyone provide me a link to the specification of segwit raw transactions such as provided in https://developer.bitcoin.org/reference/transactions.html#raw-transaction-format ? (This url explains ...

More of a general question as I've recently gotten into investing in cryptocurrencies. I really love the vision for the future this technology provides, the freedom, ease of use, lack of middlemen, ...

Can miners attack lightning network making it unusable with the hope that the transaction are forced to be processed on-chain, and they earn more transaction fee?

Is it or will it be doable to generate an identity without running a full ION node (without depending even on Bitcoin Core pruned)?? Can it be done that future light ION clients do not depend on a ...

I'm developing a HD wallet using C#. I want to use this wallet for multiple blockchains like bitcoin, ethereum, dogecoin etc... I've read that I should use bip32 for my wallet. i know what's bip32 but ...

My understanding is that nodes maintain a mempool of unexecuted transactions. They use a bloom filter to query other nodes for transactions they do not currently have in their own mempool... thus ...

If I have a bitcoin wallet and a paypal account, I want to transfer my money from the wallet to paypal ; is it possible ? If so how to do ?

I've a full node running in a AWS vm. I want to develop an app which would be able to provide balance for a given btc address. I know blockchain.info and blockexplorer.com exists but I want to do my ...

I'm trying to broadcast a Taproot transaction to random nodes across the network (Testnet3). When I try to broadcast to older nodes like 0.18.0, I get the error "Witness version reserved for soft-...

I used bitcoin to pay a foreign exchange trading company but now they are saying they have not received the bitcoin. How can i find out what had happened to my transfered bitcoin?

I am writing a MuSig2 library and need some test vectors. This should include the hash functions used.

This question came up in a recent discussion with Hasu and I was wondering if there is a good/practical reason why a newly syncing node should change the assumevalid option to 0 (verifying all the ...

I have a neutrino client that currently signals NODE_NONE. When it announces transactions it sends inventory messages and gets getdata MSG_TX requests back. Currently it replies with the witness ...

Unlike binary Merkle trees, ternary have 3 leaf nodes. I wanted to understand how do we eventually get to the Root Merkle node -- is it by concatenating in the pair of 3 (considering 3 leaves in every ...

Hello everyone! Recently i received a cryptocurrency to my Blockchain Wallet. The Bitcoin was sent from Coinbase to my address - I waited for about an hour. And i don't see the transaction and the ...

Having read a bit more about the Lightning network. The capacity of the lightning network seems to ride on the "trust" of the counterparty you are opening a channel with along with the ...

I transferred an amount by the Moonpay site to the person who didn't do what I paid him for. Moonpay.com page advises me to go to the police and share with them all the information I have about the ...

The way Lightning Network works now, watchtowers maintain a list of penalty transactions to broadcast in case one party attempts to close a channel with an outdated channel state. The watchtower ...