Carioca

Recording by Chico Buarque.

Recording identifiers

ISRC
BRBMG9800707
CopyrightID (CopyrightChains transaction hash)
0x8c33446c5e8cebfe855020f6c1e76e4227157490566b1dad19124827beee573b
Copyright registration time
2026-06-10T18:21:33+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-06-13T13:32:09Z
Bitcoin block
953520
Canonical record hash
sha256:4cd6cee3de7705d57e623acbc9bb8e984fa3892c325d47aedab9e227fcb88d21

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.