La Cucaracha

Recording by James Last.

Recording identifiers

ISRC
DEF069611850
CopyrightID (CopyrightChains transaction hash)
0x0af09cc84ec7344f3c191f5d16d22cb8de0638f966b1e51f2eeab6267d2811ae
Copyright registration time
2026-07-07T04:26:09+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:151c48a85aee6640f55c8c27a2ba037576468d3102aef194cc4fc510dd24377e

What this proof establishes

This recording belongs to ProofProfile's historical evidence base derived from the pre-2022 AcousticBrainz and MusicBrainz corpus. ISRC is the stable recording-level bridge from that source corpus to the authoritative cc-db-prod track record.

CopyrightChains and Bitcoin OpenTimestamps make the exact committed record independently verifiable today. The cryptographic proof does not by itself establish authorship or ownership of the underlying recording.

Read the complete pre-generative-AI provenance and verification method.