Boa Obra

Recording by Nathália Braga.

Recording identifiers

ISRC
BR4TF2200005
CopyrightID (CopyrightChains transaction hash)
0x45a68251286cdf8a6e5d0c20ad0b828be019cd7bf301e357394e5c798b0b9989
Copyright registration time
2026-06-24T20:42:29+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:55:08Z
Bitcoin block
956304
Canonical record hash
sha256:976dc9960023883ae88d1c71e258f92bc50581a58eff21f252dcbd7626551163

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.