Carta Abierta

Recording by La Reunion Nortena.

Recording identifiers

ISRC
QMSAV1104165
CopyrightID (CopyrightChains transaction hash)
0x6b3eabc0be69753640e95521d8e7781b42b56f435fd8bfd6410b5285ac831909
Copyright registration time
2026-07-22T17:09:58+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-22T17:48:40Z
Bitcoin block
959159
Canonical record hash
sha256:5e5ac9c9fa18bcae1d375105e97dc31fe4cd4da28d488b0e4690b9be16c5786c

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.