A confirmation is the inclusion of a transaction in a block of the blockchain and the fixing of its validity. The more confirmations a transfer gathers, the more reliably it is considered irreversible.

A Pull Request is a developer's request to include the code changes they have made into the main project. It is a key mechanism for collaborative work on code in Git and on platforms like GitHub.

Bitcoin's public ledger is a publicly accessible record of all the network's transactions since its launch. Any participant can verify operations, which ensures the transparency of the blockchain.

A block reward is the reward a miner receives for successfully creating a new block in the blockchain. It consists of an issuance part and transaction fees and decreases periodically.

Namecoin is one of the first altcoins, created on the basis of Bitcoin's technology. Its purpose is the decentralized registration of names and domains, primarily in the censorship-resistant .bit zone.