La negra Tomasa

Recording by Compay Segundo.

Recording identifiers

ISRC
ES5010080011
CopyrightID (CopyrightChains transaction hash)
0x2937d62c9ed4eac2777ce04f57455716d699197b24e6d2895f9feaecbf6fb80a
Copyright registration time
2026-06-04T07:37:57+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:55:08Z
Bitcoin block
956304
Canonical record hash
sha256:eb298e0100d8615f5bd1a32741e00f07963bd3646299a954b0620c029d9fd231

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.