Nestor

Recording by Grupo Margen.

Recording identifiers

ISRC
QZDQH2395089
CopyrightID (CopyrightChains transaction hash)
0x87d4803cd99edf4671b102f815dd73dd80a3fd2b94b791a09dc26ae7821d39c7
Copyright registration time
2026-06-25T11:54:31+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:55:08Z
Bitcoin block
956304
Canonical record hash
sha256:6a1a9b32ef2b64376aaf1ad03bf23c352402be83c625dbc1c0e9525473d4318a

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.