All Questions

0
votes
0answers
13 views

transfer cryptocurrency with api

I need a wallet that have api for currency transfer like block.io api. But because block.io only supports 3 currencies, it is not suitable for my project There is another wallet for my work? (Only ...
0
votes
0answers
25 views

Generate BTC transaction that can't be replayed on forks

Transaction is non-segwit, P2PKH. I don't want to touch the same addresses on forks yet, but also don't want anybody to be able to replay my BTC transaction on any of the forks' blockchains. What can ...
0
votes
0answers
15 views

secure Multi-Party Computation (sMPC) in Enigma?

In Enigma whitepaper (>> Link to the Enigma paper <<), in section 5.1 "Overview of secure multi-party computation", page 4, explains how to divide a secret s into multiple shares, using ...
1
vote
1answer
63 views

BTC and BCH receiving addresses

UPDATE ONE: It seems I might have answered my own question. I took an address generated on bitcoin-core 0.17.1 to a BCH ATM and it would not get accepted as a valid address. I then took the same ...
0
votes
1answer
27 views

How can get balance for btc/bch address and block?

How can get balance for btc/bch address and block ? Similar to web3.eth.getBalance for Ethereum
0
votes
1answer
25 views

Are addresses which start with 3 multisig addresses?

I've just downloaded bitcoin-core 0.17.1 and it seems all the new receiving addresses I create start with 3 instead of 1. I always thought addresses which start with 3 were multisig addresses. ...
1
vote
0answers
33 views

How to sign bitcoin raw transactions with Python offline

I have a raw bitcoin transaction created using createrawtransaction unsigned_tx = "...
0
votes
0answers
14 views

Bitcoin Gold estimatefee public API

I am looking for a public API to serve current estimatefee for Bitcoin Gold. I am using such public API for BTC from this service: https://bitcoinfees.earn.com/api/v1/fees/recommended which works ...
0
votes
0answers
32 views

Create a multi user web wallet using bitcoind RPC call

I just a beginner in bitcoin technology.I planning to create a multi user bitcoin web wallet using a VPS full node setup(Not use minig). I read the RPC documentation and found something for archiving ...
0
votes
1answer
18 views

Import wallet or transfer coins

Say if I am changing from CoPay to Bitcoin Core, is it recommended that I try and import my CoPay's private keys to Core, or just send the coins over to my Core account.
0
votes
1answer
10 views

How to differentiate between sending and receiving address in blockcypher api result?

I am using BlockCypher's API to get a list of transactions for a bitcoin address. I need to maintain a record of IN and OUT transactions from this address with time and transaction hash. However, I am ...
0
votes
0answers
23 views

Generate Monero Public/Private Key using ONLY PHP

I'm trying to generate a Monero Public Key and Private key for a webstore using only PHP. I see Monero javascript and python code, however, I do not see PHP only code. This is my attempt with PHP ...
0
votes
1answer
18 views

how to place a bitforex api buy order

I have read the documentation for BitForex on placing a buy order here: https://github.com/bitforexapi/API_Doc_en/wiki/Order Then after understanding that, I read the API Call Description ...
0
votes
0answers
16 views

So there is not way to get my bitcoins back from a scammer? [duplicate]

I made a purchase of 200USD in BTC, and i never receive anything from the seller there is not way to take my btc back?
1
vote
1answer
18 views

How to get my c-lightning node's private key?

lightning-cli getinfo outputs my node's id, which is its public key. How can I get its underlying private key?
0
votes
0answers
20 views

Unconfirmed Transactions, with low Fees [duplicate]

Is there any way to estimate when a transaction or set of transactions from the same party will be mined? For example, say the company paid a small fee for transactions. How would I estimate the time ...
0
votes
0answers
13 views

Sent BCH accidently to Bitcoin address [duplicate]

i have sent 0.29379525 Bitcoin Cash (BCH) accidentally to my BTC wallet. and i have received nothing. Can you please help me? here is the transaction id. ...
1
vote
1answer
33 views

How to model randomness in validators selection in PoS?

I searched a lot here and on the Internet to figure how how randomness selection of validators in PoS works? I understand it is a random selection based on fraction of stake a validator has, similar ...
0
votes
1answer
27 views

Link my bitcoin address with multiple wallets

I created a CoinBase bitcoin wallet address, can I share this address with Electrum desktop software instead of having different addresses and paying the transfer fees. Or is there another wallet like ...
0
votes
2answers
30 views

Address not valid when withdrawing money from Binance

I want to withdraw the Vibrate crypto from binance. When I enter the BTC wallet address which I took from my account from coinbase, binance says invalid address. Am I missing something here?
1
vote
1answer
20 views

Proof-of-Stake: What if a bad enactor is chosen by random?

My understanding of proof-of-stake is the following: The node that mines the next block is chosen, randomly in proportion to the amount of nodes they have in the network (ex. person who who owns 5% ...
0
votes
0answers
14 views

transaction issue bitcoin core

I sent BTC, bitcoin core says the transaction was made, the money was written off from the account and it is not visible in blockchain explorer. What's the problem, can you tell me?
0
votes
0answers
16 views

What does “mix hash” mean in the genesis.json?

Whenever I deployed my Ethereum test net, I usually typed 'genesis.json' from the example code. In this point, all I want to know is the difference between difficulty and mix hash. I know that ...
-3
votes
0answers
31 views

Hard forking Bitcoin: how to guide?

I've been looking around for the early commits to hard forks of Bitcoin (BCash, Bitcoin Gold etc) but so far haven't had much success in identifying the the minimum necessary to hard fork Bitcoin. ...
0
votes
0answers
18 views

Message: “this payment has not yet been transmitted”

My smartphone wallet samsung android with application bitcoin core version wallet 7.04 does not get paid. Message: "this payment has not yet been transmitted". from March 18 at 18:56 (NYC) I have ...
0
votes
1answer
9 views

Cryptofinance plugin pulling wrong data for KNC

Seems there are two "KNC" tags on Coinmarketcap... Kyber Network and KingN Coin. Any idea how I should pull the Kyber Network data using this plugin? Right now it's pulling the KingN Coin info...
0
votes
1answer
18 views

Data for time a transaction spent in a pool before it got added to a block

Is it possible to collect data for when an transaction was added to the pool to when it was added to the block?
4
votes
1answer
65 views

Warning: Unknown block versions are being mined! Unknown rules may be active

Best regards. What's going on internally when I get this warning. Warning: Unknown block versions are being mined! Unknown rules may be active Bitcoin Core version v0.17.1 (64-bit) Thank you
0
votes
1answer
17 views

Does bitcoind re-index or reverify downloaded blocks upon startup?

If so is there a way to prevent this from happening?
0
votes
0answers
13 views

Bitcoin node goes from 8 peers on startup down to 1 peer and sometimes 0 peers

I'm not sure what is going on. I'm getting the following errors in my log file: connect() to [ip] failed: connection refused (111) which makes sense since I have not configured my router to accept ...
0
votes
1answer
21 views

P2SH to LTC address with M

Are there anyone know how to convert P2SH address (like 34A5PyCvPJKYtHmj9jmKhGzBBwpGuAkZog) to MANDhrctLRAygo3dFckfWvEaWeQizSwWNK? I tried to decode with Base58Check, then removed 05 and added 032, ...
1
vote
1answer
35 views

Submitt transaction with custome fee

I like to doing to submit every new transaction with user specific fee. I don't see any valid documentation for achieve it using RPC call. Give any suggestion. Thankyou
1
vote
1answer
33 views

Is it possible to store data privately into the bitcoin blockchain?

Given that Bitcoin is a public and permissionless blockchain, does this mean that any data stored in it will be free for anyone to see? Is it possible to store documents such as screenshots etc.?
3
votes
1answer
96 views

Maximum number of inputs per transaction

In theory, what is the maximum number of inputs per transaction? Is it defined primarily by the maximum number we can store on the 9 byte varint? How big of a number can be stored on 9 bytes? Would ...
0
votes
1answer
19 views

Please tell me the procedure for installing bitcoin full node in CUI on CentOS

I am really sorry, please teach. Please tell me the procedure for installing bitcoin full node in CUI on CentOS. Currently I installed using the following procedure, but I got an error in RPC ...
0
votes
1answer
39 views

How to sweep a bc1… bitcoin segwit address using a mobile app?

I have a bitcoin private key with some money on the segwit bc1 address, but when I try to sweep this private key using mycellium android wallet, it shows up as a 3... address. What other mobile app ...
0
votes
1answer
35 views

Which parts of a bitcoin script are embedded in the blockchain?

I assume the scriptPubKey is contained in a UTXO, and therefore embedded in the blockchain. Since, this is the script used to unlock the input. Is a scriptSig also embedded in the blockchain? Or is ...
0
votes
1answer
39 views

Bitcoins didn't arrived

3-4 days ago, I transferred bitcoins from Virwox to my Electrum wallet, but this bitcoins didn't arrived, what can i do? 1JPSVx7hjcu7rR2Vr6nyz7z8mok3yryGZ
0
votes
0answers
30 views

How to generate multiple ripple address from single mnemonics?

console.log('mnemonic: ' + mnemonic) console.log('mnemonic: ' + mnemonic) const seed = bip39.mnemonicToSeed(mnemonic) const m = bip32.fromSeedBuffer(seed) const keyPair = m.derivePath("m/44'/144'/0'/0/...
0
votes
0answers
24 views

Create multiplle wallet in single full node on VPS is possible…?

I like to start a new project on bitcoin. My project is creating a web based bitcoin wallet. I planing that to run the bitcoind on single VPS and use RPC for doing wallet operations. I planning that ...
0
votes
0answers
21 views

Cannot get feereport due to error “[lncli] rpc error: code = Unknown desc = no policy for outgoing channel”

Lots of my lnd command got stucked with error message like: [lncli] rpc error: code = Unknown desc = no policy for outgoing channel 591836322924134401 I have checked the channel id appeared in 1ml ...
0
votes
1answer
39 views

Signing a blank input?

Is it possible to include a blank input in a transaction? For example, a blank input could be used to guarantee a particular output was included in a transaction, using SIGHASH_SINGLE | ANYONECANPAY ...
0
votes
1answer
22 views

Is SIGHASH_NONE encompassing of other signature types?

Say I am building a transaction in private: Input 1 is signed with SIGHASH_SINGLE ( | SIGHASH_ANYONECANPAY) Input 2 is signed with SIGHASH_NONE | SIGHASH_ANYONECANPAY SIGHASH_NONE implies that ...
0
votes
0answers
27 views

Can I connect different chains to bitcore-node?

I need to run an explorer for btc, bch, ltc, doge, dash using my own server Are there any way to use bitcore to create my node not only with bitcoin and bitcoin cash, but also connect doge, ltc, ...
1
vote
1answer
38 views

How happens the serealization the data in the file blkxxxx.dat in the bitcoin

I'm writing a blockchain parser for bitcoin core with C++ and now I want to enrich the data I read with the raw transaction and the previous and next block hashes. I used this library to convert the ...
0
votes
1answer
25 views

What is the minimum hash rate power should I have to get rewarded in btc.com? [duplicate]

I just want to know how much minimum hash rate power should someone have to receive reward in btc.com or other pools?
0
votes
2answers
57 views

Verifying a digital signature that a transaction is going to an output with value X inside a script

Edit; after writing this post i have found that OP_CHECKDATASIG is basically this in a nutshell. It is implemented on Bitcoin Cash and may soon be on Bitcoin Core as well. Someone has even written ...
0
votes
0answers
26 views

Can the blockchain be imported into wallets of different brands?

Can I import the block chain that bitcoin core downloads to use in any of the other full node PC wallets? Are the formats the same or inter-convertible?
1
vote
1answer
68 views

In the bitcoin scripting language, how can I access other outputs of the transaction? Or how else can I limit how the coins may be spent?

Is there any way to add an opcode to a UTXO that prevents how the coins are spent? For example, in order to to spend the output, a person must send X number of bitcoin to Y address within the ...
0
votes
1answer
23 views

How does bitcoin core save raw transaction data?

I had a few questions. I've looked extensively online and can't seem to get answers right on point. I just started a full node using bitcoin core and it is currently syncing/validating the past ...

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