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How should I debug this error?about altcoin [closed]

I'm creating an altcoin. I modified some parameters in chainparams.cpp and then when I recompile I get the error below, can anyone help me with that? How should I fix this error? BTW,I have already ...
张荣海's user avatar
0 votes
1 answer
21 views

Where did my bitcoin go?

Wanted to combine bitcoin on coinbase with bitcoin in wallet. Think I did it wrong. Can’t remember exact steps but think I went on „swap“ for some reason. Thought I was transferring from coinbase to ...
Laura's user avatar
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0 votes
0 answers
20 views

Daylight Savings Time obsoleted my old 2FA device? (really wierd)

So, sometime this year, the USA stopped implementing daylight savings time, so that our time is not adjusted by 1 hour twice a year. I live on the east coast and have an encrypted android device that ...
YouBuckingFitch's user avatar
0 votes
0 answers
19 views

I downloaded Bitcoin core, but it's Now Trying to download blockchain Again – how can I Make it recognise I have the blocks In existing data file

Windows 10, external 1TB HDD SDD *I Accidentally clicked "reset options" becomes in Core, Within The settings menu *In the data file, there are Still, blocks Downloaded From everyday of the ...
Felix's user avatar
  • 1
2 votes
2 answers
289 views

Undefined opcodes in bitcoin core defined as "Synonyms for OP_RETURN" in rust-bitcoin

In rust-bitcoin, opcodes past the 0xba opcode are named as such: OP_RETURN_187, OP_RETURN_188, ..., OP_RETURN_254. Their description is all the same: Synonym for OP_RETURN. The definition for ...
thunderbiscuit's user avatar
1 vote
1 answer
28 views

Is it possible to mine bitcoin in a trustless way with a Pool?

Some context As far as I understand there are two ways in which an individual (or a company) can mine Bitcoin: Solo: if one has enough hashrate to secure a block often enough to pay for the ...
Lagrange.el.Ciencia's user avatar
0 votes
1 answer
46 views

How to convert the results of point doubling (Rx1 and Ry1) to point addition (Rx2 and Ry2) without knowledge of (Qx, Qy) in secp256k1 elliptic curve

I'm working with the secp256k1 elliptic curve and have point doubling and point addition formulas for this curve. Given the following formulas: Point Addition Formula in Python3: s = (Qy - Gy) * pow(...
Aviril Smith's user avatar
2 votes
1 answer
48 views

Getting Error while trying to decode psbt base64 to json using bitcoinjs/bip174 library

const base64PSBT = 'base_64'; // Decode the base64 PSBT to a Buffer const psbtBuffer = Buffer.from(base64PSBT, 'base64'); // Parse the PSBT const psbt = bip174.Psbt.fromBuffer(psbtBuffer); // ...
soumyadeep.eth's user avatar
0 votes
0 answers
28 views

I want to know how can my bitcoins get stolen ? I gamble a bit now and then, and often i have to deposit/withdraw with crypto.. what are the risks? [closed]

how can my bitcoins get stolen 101 HOW EASY it is to get ROBBED? WHAT are the biggest "risk/ways" HOW can I keep my wallet SAFE? Is WWW.COINBASE.COM safe? Are BLOCKS users trying to enter ...
Sophie Trepanier's user avatar
1 vote
1 answer
62 views

How to determine the transaction type using transaction hash?

Is there any way to identify the transaction type using the following data in Bitcoin blockchain: InputCount OutputCount Transaction Version Transaction Size Transaction Weight Transaction Lock Time ...
Dev Sapariya's user avatar
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0 answers
36 views

The only way to connect to peers is through a DGRAM unix socket?

I'm running an experimental setup. I have Ubuntu on my desktop computer with a USB hub connected and a 1TB ssd sata drive mounted to it at /mnt/d1 I'm using a second docker instance dockerd -H unix:///...
Ben Muircroft's user avatar
0 votes
0 answers
31 views

bitcoin full node huge upload bandwidth

Have been running a full node for a couple of months now, using bitcoin core 25.0 Last time I was running a node was many years ago, so I a bit outdated... I am wondering if upload stats are not a bit ...
mapal's user avatar
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1 vote
0 answers
26 views

Bitcoin Core resynching after updating from 0.19 to 25.0

Similar to this post after upgrading Bitcoin core from version 0.19 to 25, it is re-synching and ignoring the already synched blocks. This is a quite a large version jump, there doesn't seem to be a ...
leo_cape's user avatar
0 votes
1 answer
45 views

Public key factors - but what's next?

Let's say I found (I know, impossible) public key factors. What to do with them next to compute original private key for that public key?
pbies's user avatar
  • 141
0 votes
1 answer
48 views

what are the future projections for fees per byte in satoshis if BTC becomes the global settlement layer? [closed]

What are the future projections for fees per byte in satoshis if the BTC becomes the global settlement layer? and is this number increasing over time as the block subsidies are decreasing and what are ...
Mr_leighman's user avatar
-1 votes
0 answers
22 views

Merged Mining - Can anyone describe how to use Dogecoin's createauxblock and submitauxblock for me? [closed]

I've been looking for a step by step guide on how to mine a merged Dogecoin block with these two commands. Can anyone help? I'm doing merged mining with Litecoin/Dogecoin.
cesarv's user avatar
  • 1
4 votes
1 answer
100 views

Is OP_CODESEPARATOR disabled in Bitcoin and if so why?

OP_CODESEPARATOR is used in the Bitcoin script language to mark the beginning of signature-checked data. However, the given operator never found its real practical use case. So, is the given operator ...
Filip's user avatar
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0 votes
0 answers
25 views

What does this diagram mean? [duplicate]

On this answer Steven Roose used the following diagram: What this exactly means? Here is my take: In a shared UTXO of 4 participants (A, B, C and D), each will receive a redeem transaction that they ...
bordalix's user avatar
  • 415
3 votes
1 answer
83 views

How does the unilateral exit process in Ark work?

It's been told here that the cost of a unilateral exit depends on the number of leaves of the shared vtxo tree, which determines the number of transactions one has to broadcast to complete the process....
altafan's user avatar
  • 31
4 votes
1 answer
131 views

Why are hashSequence and hashPrevouts computed separately?

When a Segwit transaction is signed, among the many hashes that are calculated to create the data that is going to be signed, the hash of the concatenated [input + index] is calculated (hashPrevouts) ...
mathboi's user avatar
  • 107
3 votes
1 answer
128 views

How does Bitcoin Core help validate transactions?

I am very new to Bitcoin. I recently learned that a full node can help validate a miner's work, so I downloaded the Bitcoin Core and decided to become a full node. How does this help validate a miner'...
your_chinesemom's user avatar
0 votes
0 answers
35 views

bitcoin-cli getrawtransaction not working as expected?

So I'm trying to set up a full bitcoin node. I compiled bitcoin core fine and I created a config file. I want to download the entire history of the blockchain, so I created a bitcoin.conf file in my ./...
Jonathan Gafar's user avatar
-1 votes
0 answers
21 views

Exchange crypto to Payoneer/perfect money [closed]

how can I exchange perfect money and Payoneer against Usdt/other crypto.if anyone know about it tell to how?
Rahim's user avatar
  • 1
3 votes
1 answer
111 views

How many recipients can fit in a single Ark shared output?

It's the only boundary the taproot/MAST limitation of 128 levels of the tree, ie. 2^128?
Marco Argentieri's user avatar
4 votes
1 answer
741 views

Why is each transaction broadcast twice in the Bitcoin network?

Here is a part of this mail in the mailing list from Satoshi: The bandwidth might not be as prohibitive as you think. A typical transaction would be about 400 bytes (ECC is nicely compact). Each ...
Amir reza Riahi's user avatar
0 votes
0 answers
29 views

Which chain for developing a BTC based app? [duplicate]

There appear to be four chains you can use with bitcoin-cli. Main, test, signet, and regtest. Main is off the list obviously but I'm not sure which other chain I should be using. I'll need to be able ...
Cromulent's user avatar
  • 111
0 votes
0 answers
23 views

Address "invalid" when sending from Coinbase wallet to Coinbase account [closed]

I’m having troubles at the moment to send BTC because it says the Coinbase account address to receive the bitcoin is invalid. I need an expert is a big amount and I can’t find a solution
user145032's user avatar
1 vote
0 answers
26 views

Pending open lightning channel

I opened a lightning channel with RTL on my raspiblitz. It took too low fees by default (my fault). So I tried in RTL to pump the TX but this doesn't help. It seems that there was an second TX created ...
Kᴀτᴢ's user avatar
  • 111
0 votes
0 answers
34 views

Is there any free bitcoin full node api's? [closed]

For my purposes i need a specific full node implementation - bcoin(https://github.com/bcoin-org/bcoin) I've spoke with QuickNode support team about their node software and they told me that they no ...
Andrey's user avatar
  • 1
-1 votes
0 answers
38 views

Is it possible to create a Lightning Network smart contract for income distribution based on specific conditions?

Is it possible to set up a lightning wallet (contract) that implements the following scenario: Person A creates a wallet with wallet nr A_WALLET_NR Person A creates a wallet with wallet nr INVEST ...
a.t.'s user avatar
  • 109
-2 votes
0 answers
16 views

Kadir uygac port [duplicate]

this woman called me and made me open an account of bitcoin and made me buy 435 pound bitcoin so they told me I will have money then they are asking to put 9000 to bitcoin account for redrawing money ...
Kadir's user avatar
  • 1
3 votes
1 answer
125 views

How to identify a transaction input type?

I am currently working on a tool parsing every transaction of the bitcoin blockchain, using the getrawtransaction RPC call in verbose mode. My goal is to store them all in a database, while keeping ...
Lev's user avatar
  • 33
1 vote
0 answers
16 views

Address watcher with BDK/Rust

I'm trying to implement (multiple) address watcher in BDK/Rust. I'm having trouble doing this for an arbitrary address, because BDK and rust-miniscript don't support "addr()" expressions in ...
jurglic's user avatar
  • 111
2 votes
2 answers
661 views

Security risks in running a full node on my personal computer that I use for banking, work, etc

Let me start off by saying that my networking knowledge is fairly weak, so please bear with me. I am reading the book "Mastering bitcoin" and it says that I should be running a node if I ...
Jonathan Gafar's user avatar
0 votes
1 answer
64 views

How was this transaction validated?

I'm having trouble understanding how the following transaction was valided (Block 364845 July 2015) : 2c6c27639e79038cf446e795e267dc8abbe96d1f21cdd17518cc6b57ad2d86d9 It has one input, and is ...
mathboi's user avatar
  • 107
0 votes
2 answers
78 views

What is the format of a Bitcoin block body?

To my understanding, the miners solve the nonce to get a valid block header based on the difficulty target. In the header, you have the Merkle root, which is generated from the transactions included ...
Edile's user avatar
  • 1
2 votes
1 answer
63 views

How many transactions go on-chain if a user unilaterally exits from an Ark?

In Ark, if Alice decides to unilaterally exit will this means the entire tree must be revealed? How is congestion control handled?
bordalix's user avatar
  • 415
4 votes
1 answer
176 views

How would the transaction chains created Ark pool transactions work given current mempool policy?

If I understood Ark correctly, pool transactions (which are on-chain transactions) are connected, as the output of pool transaction A is used as an input of the pool transaction A+1. If so, how can ...
bordalix's user avatar
  • 415
0 votes
0 answers
35 views

single mnemonic to create private key with different networks

I have both 12 and 24 words, but i can't remember which coin it has. so shall i try all wallets to find out which has a coin or is there anything i can do practical? with a 24 words can i create a ...
Septimus's user avatar
7 votes
1 answer
135 views

Why are OP_MUL and OP_DIV disabled in Bitcoin?

What is the reason why OP_MUL and OP_DIV operators were removed from Bitcoin? Is this because someone could maliciously create a script that multiplies large numbers and thus blows the stack, or is ...
Filip's user avatar
  • 1,047
0 votes
1 answer
82 views

How can I tell from the `getrawtransaction` if a transaction signaled Taproot?

I'm trying to "distill" Taproot transactions in the raw transaction output, but: It is still not clear to me what tx version number a Taproot transaction uses. How to find out if it's a ...
Bart DV's user avatar
  • 71
0 votes
1 answer
32 views

Off chain transaction on exchange

Are cryptocurrency exchanges uses off chain transactions?And if yes when does they used?
juhasa's user avatar
  • 1
0 votes
0 answers
24 views

Is Clux Wallet Genuine? I am asked to add funds to my Clux Wallet in order tp generate a private key [duplicate]

I am new to crypto trading. My crypto trader refused to send the earnings to Binance or WazirX saying there are issues with these wallets on their side. And deposited my funds in a crypto wallet ...
NEWBIECRYPTOTRADER8's user avatar
0 votes
0 answers
60 views

Upgrading from 0.14 to 0.25. Problem with pszTimestamp, and assert(consensus.hashGenesisBlock error during runtime [closed]

I have a slightly modified fork of bitcoin-0.14. It's mostly a name change and hash key change. I have updated it to bitcoin-25, but I cannot get passed this error: CMainParams::CMainParams(): ...
queryman2000's user avatar
0 votes
0 answers
32 views

Bitwallet by sollico [closed]

https://bitwallet.maxitradeapex.space/ pls is this the customer support services of bitwallet by sollico? Or scammer
Emeka Chukwuemeka's user avatar
4 votes
2 answers
367 views

When does Bitcoin Core allow you to "Abandon transaction"?

Right-clicking on an unconfirmed transaction pops up a contextual menu that has the option "Abandon transaction". It is usually grayed out. How much time needs to pass for Bitcoin Core to ...
Geremia's user avatar
  • 4,549
0 votes
1 answer
70 views

Can two people generate the same exact wallet or seed phrase [duplicate]

Can 2 or more people generate the same exact wallet. And if so, what happens then?
Papi's user avatar
  • 33
1 vote
1 answer
31 views

How should I be using rpcbind and rpcallowip (bitcoin.conf)

I have been very confused on how to use the rpcbind and rpcallowip arguments for bitcoind. I have a bitcoin core node running on a raspberrypi and I want it to accept json-rpc calls from one of my ...
NeonTears's user avatar
0 votes
1 answer
81 views

How does a completely offline wallet "registers" and runs

A wallet which was made offline and will never ever see the internet how is it "registered" and runs in the blockchain. Is it through the watch-only wallet?
Papi's user avatar
  • 33
1 vote
1 answer
59 views

Why do I need to download the entire blockchain for a wallet when I can make one one with open source java like bitaddress.org

Like title said. And when i will have to use the btc I can login the wallet with the private key on a hot wallet.
Papi's user avatar
  • 33

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