Meu Refrão

Recording by Chico Buarque.

Recording identifiers

ISRC
BRSGL6600011
CopyrightID (CopyrightChains transaction hash)
0x63fe50c6c385e42eeef38c70da6bc8b00a151485371389d538da66ed093ca46f
Copyright registration time
2026-06-22T02:57:12+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:55:08Z
Bitcoin block
956304
Canonical record hash
sha256:7da9ba56fdd3320990fd217d897e564202d5be93b7a83301f4b947758f58f8e8

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.