Editing Portal:Crypto and Blockchain (section)

=== Bitcoin-specific Perl modules ===

As Bitcoin matured, Perl gained Bitcoin-specific modules. The most important modern example is '''Bitcoin::Crypto'''. Its documentation describes it as a cryptographic module for common Bitcoin-related tasks, including low-level manipulation of Bitcoin keys, transactions, and encodings.<ref>MetaCPAN, “Bitcoin::Crypto,” https://metacpan.org/pod/Bitcoin::Crypto, accessed July 3, 2026.</ref>

`Bitcoin::Crypto` supports practical Bitcoin concepts such as private keys, public keys, addresses, extended keys, mnemonic-based key derivation, scripts, tapscript, script trees, transactions, UTXOs, blocks, and PSBTs.<ref>MetaCPAN, “Bitcoin::Crypto,” https://metacpan.org/pod/Bitcoin::Crypto, accessed July 3, 2026.</ref> This makes it more than a simple hash or encoding library. It represents a real Perl interface to Bitcoin’s internal data structures.

This is historically significant because Bitcoin is not just a payment network. It is also a collection of data formats. A useful Bitcoin library must understand keys, addresses, scripts, transaction serialization, signatures, and wallet-related formats. Perl’s strength in data manipulation makes it well suited to exploring and transforming these structures.