A Rita

Recording by Chico Buarque.

Recording identifiers

ISRC
BRSGL6600003
CopyrightID (CopyrightChains transaction hash)
0x5c2d60c221e173bd18fde0141e5433dda0d4f5d6b07d62071ee1289c077dd30f
Copyright registration time
2026-06-09T07:57:05+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-06-13T13:32:09Z
Bitcoin block
953520
Canonical record hash
sha256:238b4181dfce344a2fe51fbdd7383031221c805dc34c2f89ce118a1fa3d72ddb

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.