Uma Palavra

Recording by Chico Buarque.

Recording identifiers

ISRC
BRBMG8900050
CopyrightID (CopyrightChains transaction hash)
0x4a2a9bc9b2da0c5ff7e6dfa5dabbea6fc073ff8ce78514841a507a2d2adffcf5
Copyright registration time
2026-07-06T03:55:59+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-06T06:56:49Z
Bitcoin block
956889
Canonical record hash
sha256:33614247477fde4f07a58081243168cd236706d26ea74d07c045c49f9e9a4dbd

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.