Marta y Baby

Recording by Dúo Melodias Cubanas.

Recording identifiers

ISRC
ES71G1728633
CopyrightID (CopyrightChains transaction hash)
0x12716613351be6813ffbab89a3d27d36d5a1f7654ba841e94c00508b5c35ac34
Copyright registration time
2026-07-07T19:05:11+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:22:41Z
Bitcoin block
957120
Canonical record hash
sha256:485509ee8ae6ed55cba4293e96674a6b16afd1dde5721ce92db74b1f0593c562

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.