Editing Portal:Crypto and Blockchain (section)

=== Stablecoins, tokens, NFTs, and DeFi ===

Modern cryptocurrency is not only Bitcoin. Stablecoins, tokens, NFTs, and DeFi protocols create large streams of transactional data. Much of this data is public but hard to interpret without decoding contract logs, token standards, event signatures, addresses, and metadata.

Perl can be useful in this area as an ETL and reporting language. It can call RPC endpoints, decode JSON, store event logs, normalize token amounts, fetch metadata, generate CSV exports, and compare on-chain activity to business records.

However, DeFi and token systems also increase complexity and risk. Smart contracts may be upgradeable, bridges may fail, token decimals may vary, metadata may be unreliable, and malicious contracts can imitate legitimate assets. Perl tools in this space should therefore focus on verifiable data, careful validation, and conservative automation.