Don Perez Freire

Recording by Agustín Barrios Mangoré.

Recording identifiers

ISRC
HKI190675902
CopyrightID (CopyrightChains transaction hash)
0x7ba11298a1f96aa2971ae0f24dd78cbfc15fbf756e180c944610bf2a6ea1e99e
Copyright registration time
2026-06-28T06:07:30+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T16:51:38Z
Bitcoin block
956375
Canonical record hash
sha256:ca7add267859673a34f80b9b02cd3b6cb92f6de9179e97db4b8e7bdba0f27df3

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.