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Recording by Grupo el duelo.

Recording identifiers

ISRC
QM4TW2003083
CopyrightID (CopyrightChains transaction hash)
0xb75bc9c0b3d2dc7ba8bca98d3139533dd1b1b4723f34bcd1c878a8c627110902
Copyright registration time
2026-06-22T04:57:16+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:55:08Z
Bitcoin block
956304
Canonical record hash
sha256:0a9c7d745e1ba520b446ccb0576f9b113a66ac5e3398e96c881a97a109178cb3

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.