I’m generating multiple children using one extended key. I have no problem generating public addresses: $master = HierarchicalKeyFactory::fromExtended(myKey); $key = $master->deriveChild(1); $publicAddress = $key->getPublicKey()->getAddress()->getAddress(); In order to sign a transaction, I need the public address’ […]

Looking for a good Segwit supporting testnet faucet and preferably one that supports P2WPKH addresses, however answers that allow only P2WSH are fine too.

When I want to send BTC in block chain this message is appearing: BitcoindException(super=com.neemre.btcdcli4j.core.BitcoindException: Error #-26: 66: mempool min fee not met, code=-26). Who knows how to resolve this? Can anybody help me please?

Is there anything inherently insecure about using a dedicated Android phone as a "hardware wallet"? A dedicated phone implies: a clean ROM without gapps, e.g. GrapheneOS, Lineage OS without root, etc full phone encryption enabled […]

Have the newest (3.+) ver. of Electrum Wallet. I performed the sweep of the private address to acquire BTC from paper wallet . Wallet menu->Private Keys-> Sweep. Performed the operation, the screen showed me the […]

I’ve exported my private keys from Block.io. They’re compressed WIF keys (starting with L…). Additionally I’ve got the following data from Block.io: Address type: P2SH (obviously) Redeem script Redeem script hex Two public keys I’ve […]

I am pretty much a Bitcoin novice. Bought some a few years ago, they went into my Blockchain.info wallet and I only checked it again a few days ago. It says I can get the […]

Using the API endpoint http://localhost:3000/api/v2/create I get this response: {“guid”:”58671a54-7d60-4319-8742-b06fb2a8d060″,”address”:”xpub6CzAMijBVeK5qBxbXc2i4NyGbvr9wLRTJWf58f3mdv7Lb2eeo6Uz9UKq7ntTDdvfDgH6MhuuLJgCAWcto1BX9TA3wpaKU9vomML8MfvdZUD”} It seems to be returning an extended public key rather than an address, how can I get the wallet address to accept payments?

I want to get the data for the total market cap similar to what I see when I view this page in the total market capitalization graph. https://coinmarketcap.com/charts/ I already have the Bitcoin market cap […]

Which I think is about 3 years plus old but it was on my old computer which died. I have now recovered the drive at the Bitcoin-qt application but it won’t run on my current […]