Duo

Recording by Gustavo Santaolalla.

Recording identifiers

ISRC
US3M51108005
CopyrightID (CopyrightChains transaction hash)
0xd70ea90aa5c81f3a919a85ced2c41f05bf4f58b5c0e91a3746365eddc98d7b85
Copyright registration time
2026-07-07T01:55:36+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:53:27Z
Bitcoin block
957124
Canonical record hash
sha256:235025dca203dae2a0cae2eb28f6e39d043f4debba21e84c4c61ccb000ef1fd5

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.