A Rita

Recording by Chico Buarque.

Recording identifiers

ISRC
BRBMG9101231
CopyrightID (CopyrightChains transaction hash)
0xacf5ef8239de652ca285905ceea2a23bd350c98be4de6824ddcf5e6e11843d64
Copyright registration time
2026-07-30T14:09:56+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-30T14:36:16Z
Bitcoin block
960264
Canonical record hash
sha256:5f285ec36cc54dbbe8d15d869f0624f129d66045c2e20403d051ee9d50896f27

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.