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11 views

I have pending transactions in my wallet yet I can't find it anywhere

I have pending transactions in my wallet yet I can't find it anywhere , can you assist please
0
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0answers
12 views

Is there a way to differentiate between Ripple secp256k1 or ed25519 curves judging by an address? [closed]

Suppose I want to verify if the user controls certain Ripple address. For Bitcoin/Ethereum this is simple as they use single cryptographic curve - I ask to sign the message with private key, extract ...
0
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0answers
18 views

How do I find out my Bitcoin balance?

I used to have an account with Bitcoin and, today when I logged in, I can't find my balance. Does it exist anymore?
0
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0answers
11 views

Is the Libra mineable? [closed]

I have read that Libra uses SHA3-256 hash algorithm that's means it going to be run by ASIC chips but i am not sure about are the Libra mineable ?
0
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1answer
22 views

How Do Attackers Forge Bitcoin Blocks And How Do You Identify Forge Bitcoin Blocks?

I have read that a block contains several bitcoin transactions and an attacker can forge fake blocks. Does these forged fake bitcoin blocks cost the attackers money for mining or was it just ...
0
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0answers
16 views

How to know which Cryptocurrencies are CPU mineable and which are not? [closed]

I want to know how many altcoins are CPU mineable. Is there any list or link which tells me about this or I have to see the hash algorithm of all the coins to get this information.Because I can't ...
1
vote
1answer
55 views

Problem with Greenaddress 2of2 Recovery

I'm encountering an unforeseen problem with 2o2 Recovery procedure. I followed all the instruction at https://github.com/greenaddress/garecovery, I've correctly installed Ubuntu for Windows, I've ...
0
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1answer
24 views

import bitcoin seed

Hello everyone I need to know in which wallet I can import my seed like the one in the next photo which is an example, it is not the real one, I do not remember which page years ago gave me this as a ...
1
vote
1answer
23 views

I LOST MY FUND EVEN ALREADY IMPORT WALLET

I cannot recover my fund in Copay Wallet. I done import wallet using my back up 12 phrase word but yet still cannot recover. Why?
0
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1answer
20 views

Incentives against selfish miners with 51% power

To me the situation of a '51% miner' is much like a government printing money - when they do, they get to finance their budget deficits as they get to spend the money first (when prices haven't ...
0
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0answers
16 views

Which application software can be used to simulate the Proof-of-work algorithm of a single node in Bitcoin?

Which application software can be used to simulate the Proof-of-work algorithm of a single node in Bitcoin? I want to get results such as the average mining time to get a block and I want to be able ...
0
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0answers
19 views

Blockchain save destination folder

I am going to activate a Bitcoin Core full node on my PC. Selecting a custom folder in which to save the blockchain, however, I get the error message: "A fatal error occured. Bitcoin can no longer ...
0
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0answers
13 views

How to strip witness data from block in json/hex format?

I have a JSON format block (Height:500000) here. As you can see here, it is a segwit block and its actual size is 1048581 and stripped size (without witness data) is 981404. I want to strip full node'...
0
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0answers
8 views

Configure esplora to point to the bitcoind servers ip address - Part 2

Continuing on from this post: Configure esplora to point to the bitcoind servers ip address Trying to run cargo run --release --bin electrs -- -vvv --daemon-dir ~/.bitcoin, but it kept saying that ...
0
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1answer
21 views

Is it possible to skip verification of blockchain data when using bitcoin core?

Because I need bitcoin core client only for JSON-RPC requests. Will I need pruned initialization or normal initialization of bitcoin core client for successfully running such requests? (I guess client ...
0
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0answers
15 views

Fund single output in PSBT with bitcoind

I would like to create a PSBT with a single output (P2WSH with a given/predefined amount) in an app and give that to the user. The user should then be able to fund this PSBT with the help of bitcoind ...
0
votes
1answer
25 views

Why is Bisq suddenly acting up and refusing to let me withdraw my coins?

Bisq: v1.2.7 (latest). I've used it (with this same account) numerous times in the past without problems, in the exact same way. Now, after I have completed a trade, and try to withdraw the coins to ...
1
vote
2answers
35 views

How to check if a bitcoin address received a new transaction programmatically?

How can I check if a bitcoin address received a new transaction programmatically? Here is an example of the API call, but I can't figure out how to get the value of the new transation in API response:...
0
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0answers
15 views

Impossibility of Distributed Consensus with One Faulty Process

In following answer (LINK: https://bitcoin.stackexchange.com/a/58908/41513), it has been shown that for Asynchronous Byzantine Agreement: "we cannot tolerate 1/3 or more of the nodes being ...
0
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1answer
21 views

Will the amount in my Bisq account which is currently “Locked” be “unlocked” after some time?

I've just completed a transaction in Bisq. I have a certain amount as "Locked" in the top-right corner stats of Bisq. What does that mean? Will it be "released" after a certain amount of time? I have ...
0
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0answers
23 views

Cryptocurrency Trading Bot Developer [closed]

I am looking for an experience to build a cryptocurrency trading bot. 1) The bot will support at least 10 cryptocurrency trading exchanges such as Binance, Bittrex, etc. 2) The bot will support ...
0
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0answers
21 views

What is the point of using “Hodl Hodl” when the sellers have the same “verification” nonsense as all centralized marketplaces?

Example of the only offer on the site which I could in theory take, until reading this profile text: Please verify your identity with us so that we can trade safely No 3rd party transfers ...
-3
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0answers
18 views

Execute smart contract on my own blockchain? [closed]

I developed a crypto like bitcoin based on a blockchain using nodeJs, it's not using EVM, so,it use javascript interpretor. In fact, i want to develop an insurance system of automatic payment : The ...
0
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0answers
10 views

What exactly does the “score” field mean and how does work? when I execute the RPC command “getnetworkinfo”

I saw a similar question (this) but I think that the answer doesn't clarify me what the field meaning and how works (it's calculated?, how?).
3
votes
1answer
31 views

How to provide a proof-of-payment to an offline Lightning Network vending machine?

I'm considering building a Lightning Network vending machine that is offline but has the capability to create LN invoices and verify payments. As an example the scheme has: One offline vending ...
3
votes
1answer
332 views

I've found two mined txs with no fee

I was debugging my little project and I've found this pair of txs without fees (they caused an alarm): [txId=e8f6f08430ab6b1f3e645f499cf90c69acf2eb8a8d9766abb9d76314f29209dd, fees=0, weight=879600], [...
0
votes
0answers
19 views

Multi currency wallet (Universal wallet)

I would like to create a multi currency wallet as a POC. I am currently able to make a wallet for Ethereum (Like balance, tx and all) but would like to create it for other as well (like Bitcoin). I ...
0
votes
1answer
24 views

I have tried this code on 3-4 pool mining sites but it doesn't work why?

This script was written for litecoin. I prepared it according to the stratum protocol. I also have different codes for bitcoin etherum etc. But I always getting same error: {"id":4,"result":null,"...
0
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1answer
28 views

Why downloaded Block Size doesn't match with actual block size mentioned on network?

I am trying to download a block(Height:474044) using an API from here in python. Block is obviously downloaded in JSON format. But when I store it in a file on my system it shows very weird size ...
0
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0answers
19 views

private key to public key generation bitcoin vb.net gives unknown error - secp256k1 eliptic curve

I'm trying to use secp256k1 eliptic curve to get the public key from private key but it gives me an unknown error error Private Sub Button13_Click(sender As Object, e As EventArgs) Handles Button13....
0
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1answer
47 views

Bisq appears to have died. Is there a new/more active decentralized Bitcoin exchange?

I'm sad to see that the only payment method I can use, "SEPA", has zero acceptable offers. All are way above the market price and extremely limited in how much you can buy, to the point of not even ...
0
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0answers
41 views

PSBT signing safety checks

I'm working on a multisignature cold storage wallet that adds several features to the Glacier Protocol wallet, namely PSBT support through bitcoin-cli's RPC interface. The wallet intentionally uses a ...
0
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0answers
17 views

Blockchain/ 24trades.com [closed]

Hi everyone does anyone here knows about 24trades.com are they legit? I made investment with them so for me to get access to the funds i am asked to buy/pay for the blockchain private key!
2
votes
2answers
60 views

Why do two different fully synced Bitcoin Core nodes differ in the blockchain size?

The size_on_disk printed when executing getblockchaininfo is 1.2 GB smaller than other nodes are reporting at the same time/block. txindex=1 What could it be?? I've asked to other peers on twitter ...
-2
votes
3answers
64 views

How To Create BTC Raw Transactions With 0 BTC Wallet And Broadcast It On Blockchain Network? [closed]

https://www.youtube.com/watch?v=2NFMMNXyHNE I watched a YouTube video of someone that created several BTC raw transactions with 0 BTC Wallet and broadcasted it on blockchain network with valid ...
0
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0answers
11 views

How to build electroneum 3.1.0.1 on Debian 10? [closed]

Having followed the steps at https://github.com/electroneum/electroneum/blob/master/docs/build-and-run.md I'm still left with the following error when trying to build Electroneum 3.1.0.1 from source: ...
3
votes
1answer
44 views

Sign P2SH transaction with Openssl

I have an P2SH 1-3 and I want to use openssl to sign a transaction. my redem script is ...
0
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0answers
31 views

How to generate these bitcoin addresses?

For the private key KwaZRh42fdQD4iUN6sy2GtEC5gfSAYXrQgp16KPV4Pxsspi5ChRb, I have the following addresses: 1N7jKvQ1fHezb61eNsGEaF4gcj5sQXhb2m (P2PKH) 14MNoFYWheu7sLkj8urvXCpYEdCuL4m2PH (P2PKH) ...
-1
votes
1answer
48 views

Getting a Private Key

1) When is a Private Key generated? 2) Where is it generated? 3) Where is it stored? 4) How do I use the Private Key to release funds from 'non-spendable' status
0
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0answers
20 views

Bitcoin status pending (0/3 confirmation)

A Bitcoin was sent to a friend's wallet but from that day to a month the Bitcoin doesn't appear in the receiver's account . The receipt shows sent and the status was pending (0/3 confirmation)
0
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0answers
29 views

what is the interconnections between block size, block generation interval

what is the interconnections between block size, block generation interval, number of stale blocks, number of forks, length of forks, and block propagation time
0
votes
1answer
58 views

How to generate the hash of public key in Bitcoin

I'm trying to hash the public key with SHA256 and then ripemed160 and get the hash. but it gives the wrong hash Public key: 2b4632d08485ff1df2db55b9dafd23347d1c47a457072a1e87be26896549a8737 Hash ...
1
vote
1answer
155 views

Why are there ETH addresses in bitcoin wallet.dat?

So I have a lot of addresses or pkscript listed in my wallet.dat files that begin with 0014....all...numbers. There is bitcoin address on the same line starting with a 3. When I strip the 0014 and ...
-1
votes
0answers
25 views

Help! Sent BCH tp BTC address in Kraken from Blockchain [closed]

I sent BCH from Blockchain to BTC in Kraken by mistake. BTC will help me only if I have the xpub key. Am I able to get this? Thanks in advance
1
vote
0answers
28 views

Output has an “Unknown” status?

Looking at transaction https://blockstream.info/tx/c362fe7f8cb94b363c0c7cd5a0f82cf0dfa7733ab8a3b90df3eb9f0bff912148 some outputs are having type: nonstandard. There are 2 questions related to it: ...
0
votes
1answer
18 views

Is it possible to dynamically add transactions to a merkle tree?

When i read about merkle trees.. I saw we shall build a system wherein we could club all the transactions that happend in like 10 minutes to stay in a block. I mean.. whatever is known.. the known ...
3
votes
1answer
41 views

General book recommendation

Disclaimer for moderators: I am not sure if such a question is allowed in this website. Please feel free to remove it in case it isn't. This question is based on a similar question on StackOverflow. ...
0
votes
0answers
15 views

Does EIS Suite supports Bitcoin payments? [closed]

Does BillingCore of EIS Suite supports integration with cryptocurrency payments? I found only marketing materials, not specifications or tech documentation.
0
votes
1answer
30 views

Opening a wallet with bitcoind

I am running bitcoind after previously running bitcoin-qt. I made a wallet with bitcoin-qt (and encrypted it) and I would like to open it now with bitcoind. The folder that contains the wallet.dat ...
0
votes
1answer
26 views

How miner deduct Transactions fees from transaction?

How is it possible for a miners to deduct the transactions fees from the UTXO output which is locked by locking script or encumbrances?

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