All Questions

I haven't received my funds as from the address wallet provided was not correct what can I do to get my funds

in bip 34, which change to bitcoin version 1 -> 2, uses two step for network's consensus. step 1. check if 750 of the last 1000 blocks are version 2 or greater. step 2. check if 950 of the ...

I am really fresh here and I got such notification AppCoin - Closed by 415 (+6%) New entry BUY: 395 Sat. (+-10) 1. Sell 420 Sat. (+6%) 2. Sell 427 Sat. (+8%) 3. Pamp 435 Sat. (+10%) 🏴 1. Stop - ...

At first of all i created one account on coinbase to profite the new promotion of coinbase. But my question is: I would like to know how much time i can use the 10 dollars free in coinbase whrn i ...

Hi am building one hobby project and i want to perform some operations in my own bitcoin core 0.17 by using bitcoinj lib. so is there any way by which we can use bitcoin-core 0.17,bitcoinj for hd ...

I've selected an arbitrary transaction id and retrieved its associated transaction details using the blockcypher explorer as follows: from blockcypher import get_transaction_details ...

How was bitcoin private/public key created in 2009, I observed in the blockchain some bitcoin transaction took place early 2009 Feb - April. In the original bitcoin core in github the first bitcoin ...

I sent bitcoins to the address I was given (double checked). The recipient is claiming they did not receive it. I sent them a different payment yesterday at 8:30p and they didn't get it until 4:00am ...

Generally I see that bip32 derivation paths are something like m/1/2/3/4, etc How deep is allowed? Is there a limit on how deep the tree can go?

I used the following script to generate my private key and the corresponding segwit address. Then to test it, i sent funds to the address and imported the private key on blockchain wallet; RESULT: ...

I'd like to call RPC programmatically, instead of using bitcoin-cli. when I call the function RPCConvertValues(), it always raise error RPCConvertValues() is defined here : https://github.com/...

Aside from cryptocurrencies, what advantages may blockchain(either public or private) have and real life use cases that can be more useful implemented in blockchain over traditional databases based ...

I want to generate a vanity BitMessage address to receive and send message from. I this is possible for Bitcoin itself, but what about BitMessage?

I am doing some tutorial and in this chapter we are suppose to reproduce the Script scripting language I am struggling to understand one of the exercises, here it is: Create a ScriptSig that can ...

Find all details from the link: https://www.blockchain.com/btc/tx/94ec7186e39fd9a2fda11d67fde158ba956dea421b23bb3cdefb2cc008ad1440

Is a script spendable if the top item left on the stack evaluates to "TRUE", and that is the only item left in the stack? In other words, is it okay for multiple items to be left on the stack? For ...

I'm new here and the reason is that I believe I became a victim of a scam. And hopefully, you may guide me to get out of this shitty situation or at least help me expose the scammers. I've been ...

I created to Electrum wallet and I set it up as a Legacy address with 2FA... because I want to claim a airdrop for HEX Coin on Dec 2 2019 that needs to have a legacy address that starts with a... 1 ...

I can not found the Blockchain.com online web wallet on the Bitcoin.org website, e.g. following this: https://bitcoin.org/en/choose-your-wallet?step=5&platform=web&user=experienced

Let’s suppose you have 1 BTC which you try to spend twice. You made the 1 BTC transaction to a merchant (Transaction T1). Now, you again sign and send the same 1 BTC on another Bitcoin address to try ...

At the same time, A and B succeed in resolving the "Proof of work" challenge and both add a new block to their local blockchain, then they propagate the new blockchains to other nodes. I have 2 ...

Ok so I made a $50 bitcoin deposit to a gambling site. IM NOT CONCERNED WITH THE $50, ALTHOUGH IM VERY CONCERNED HOW THIS COULD HAPPEN? WHAT IF IT WAS A LARGE AMOUNT OF $?! And they weren’t trying to ...

I recentely purchased a G32-1800 W miner. Do I need a particular PSU? Or does it just need to be rated at least 1800Watts?Cheers

If i want to send 0.2 bitcoin to Bob, will my transaction (in the input field) contain the list of all my previous transactions (both the ones in which i received bitcoins and the ones in which i sent ...

I’ve read that one bitcoin hash uses 12,700 floating point operations. The bitcoin network, as of writing, is roughly 9*10^19 hashes per second. I plugged the numbers from difficulties in the past in, ...

Let's consider a blockchain. They mining nodes are listening to transactions and every one is building is own block. Due to latency and other issues, every miner is probably building a different block,...

As i read here, in a blockchain "each node the has a copy of all transactions ever made". This to me seems impossible, bitcoin exists for a long time, and the memory size of the intere blockchain ...

I was opening my Kasse hardware wallet and the software requested to be updated, ok, so I updated. After it updated I opened the wallet and my bitcoins didn't show up. I can see all the transactions ...

Using bitcoin's RPC and txindex=0 is it possible to tell the difference between an existing output being already spent and a non existing transaction output (or transaction id)? Looking at gettxout it'...

My question is if an individual cracked Scrypt (for Scrypt based cryptocurrencies like Litecoin) or SHA-256 (for SHA-256 based cryptocurrencies like Bitcoin) and then used that cryptographic knowledge ...

So I'm developing a system that generates addresses for users to send bitcoins too in order for them to deposit on the system. I generate addresses using the following: var derivedPubKey = config....

Following the great post [Redeeming a raw transaction step by step example required, I came up with code below but the verification failed. // pubkeyBytes, len: 65 // ...

LN clients can export their view of the network as a JSON file. For instance, in a file obtained from LND, a channel (edge) is described by this structure: { "channel_id": "555479871492063233", ...

I know that they cannot be mixed case due to their BIP but what was the intention behind this idea and would it be problematical to convert a mixed case bech32 address to a lower/upper case bech32 ...

Q1 and Q2 are theoretical questions to confirm my understanding. I know doing the following serve little practical purpose. Q1: If a mining pool were to set blocksonly=1 in their bitcoin.conf, would ...

I'm trying to generate a testnet address. However, I tried to write this python program (using help of various online code places), and I created this program. The program is designed to take a 20 ...

I am reading the code of rpc's estimateSmartFee method , and I can't understand why using blockIndex in unconfTxs ? estimateSmartFee loop unconfTxs to get feeRate(code: https://github.com/bitcoin/...

I want to know if an address is spendable by an HD seed and for that purpose I am using the following command: > bitcoin-cli getaddressinfo 3LFc64RRd96ejjYvm14KaogBF9fmeNmePW | jq '.solvable' ...

I'm trying to create an extended private key so I can create multiple public addresses that can be controlled using a single master key. I have a library which handles most of what I need, but I need ...

I have some gaps in my understanding to the life cycle of the transaction that I want someone to help me fill them specially with the validation. What I understand about the life cycle with my ...

I don't mean to be a doomsday prophet or spread FUD, but I need to know if Bitcoin (or any PoW coin) investors should be concerned about the following scenario: Assume Bitcoin goes in a very long ...

Please do anyone here have the blockchain unconfirmed transaction script, please help me with it, it is a type of script that is used to send the unconfirmed transaction to your blockchain wallet, ...

The Background Bitcoin tracks chain work by counting the (expected) minimum number of hashes it would take to create a chain of the same number of blocks and same difficulty steps[1]. Naturally, ...

How can I verify bitcoin0.19 signature bwith gpg? I read I should use gpg --recv-keys signingkey, but I don't understand where is the file signiggkey. I tried to download Bitcoin Core Release Signing ...

Sent BTC (approx $500) from Coinbase, Blockchain explorer says Confirmed. Is recipient lying they have not received or could something else be the issue such as his wallet? Recipient says it could be ...

I'm using bitcoin core version 0.18.1 and I'm studying Hd Wallet. I can see the value hdseedid, and I understand that it's HASH160 of my hd seed. Can I use this seed to retrieve all my keys? I tried ...

I'd like to use Bitcoin source code(only RPC part) to manipulate with programmatically. I have bitcoind and bitcoin-cli installed in my local computer but I don't know how to write code for my ...

I've already fully synced the blockchain with btcd, can I point bitcoind at the same datadir and use its contents?

In bitcoin wallet that support bip39 mnemonic code, is there a way to get the 12/24 words from the seed generated by them? Or the translation is one-way only (from words to seed)?

bitcoind json-rpc can do it, I think I saw this on blockchain.info but I don't see it now.