O Guarda

Recording by Cidade Negra.

Recording identifiers

ISRC
BRSME9600402
CopyrightID (CopyrightChains transaction hash)
0x71d1f676d4dec06c2142f90551165b5ab9279ffc35d4e52f3e6bbde502ba132a
Copyright registration time
2026-06-22T05:08:06+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:55:08Z
Bitcoin block
956304
Canonical record hash
sha256:16354655a57aa7d38081b1dfbd26f8fc9a0eadfb417fabf81567ddbaead2ab9d

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.