When you send Bitcoin from your wallet to some other address it needs some time for transaction confirmation in the blockchain.Continue readingHow to cancel Bitcoin transaction?
I feel like having it step-by-step can make it a lot easier specially for developers.Continue readingStep by step guide to go from public key to a Bech32 encoded address
Using secp256k1 endomorphism
The existence of the endomorphism is a roughly 20% speedup in a plain multi-exp due to halving the number of doublings.Continue readingUsing secp256k1 endomorphism
Encrypting messages question
It isn’t the same with signing/verifying that you prove you own the address.Continue readingEncrypting messages question
How can I enable this option on regtest?Continue readingRegnet – Don’t blocks get mined every 10 minutes?
I want to create hundreds of addresses, but because I’m a little paranoid I don’t know how I will do it safely.Continue readingParanoid questions about creating addresses
Solving WIF in a ‘hybrid’ mode
I would like to share with you one thing I found recently.Continue readingSolving WIF in a ‘hybrid’ mode
This is a question I’ve had for some time. It has to do with the hashing algorithm of Bitcoin.Continue readingWhy does Bitcoin keep using SHA256 in its POW?
Paper wallets if done right are one of the most secure ways of storing bitcoin especially if done on an air gapped computer.Continue readingOffline signing your paper wallet using air gapped phone via Electrum
I am writing transactions manually and have stumbled across a rather bizarre situation.Continue readingBitcoind does not like ECDSA (r, s) pair produced by OpenSSL