La Juma de Ayer

Recording by Compay Segundo.

Recording identifiers

ISRC
ESA031423929
CopyrightID (CopyrightChains transaction hash)
0x4b53e9479c07ad28492cf0c6f5b714e250ad0d1717ccf2c17ddf8ccf374aa7ef
Copyright registration time
2026-07-07T20:35:14+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:22:41Z
Bitcoin block
957120
Canonical record hash
sha256:757d1a4ca0ef5b9d816a0da71d5522228664d6a9ae5cb6ac0d805581d2ea78a0

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.