Introduction to Bitcoin Programming with BitcoinJS and Bitcoin Core

Welcome to the extensive guide to Bitcoin Javascript! In this guide we will explain how to create various types of Bitcoin transactions, using the BitcoinJS library.

Multi-signature Transactions

Multi-signature (multisig) refers to requiring more than one key to authorize a Bitcoin transaction. It is generally used to divide up responsibility for possession of bitcoins.

Timelock Transactions

Absolute TimelocknLockTimePart of the original Bitcoin implementation, nLockTime is a field that specifies the earliest time a transaction may be added to a valid block. A later Bitcoin soft fork allowed nLockTime to

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