Sinal de Fumaça

Recording by Roberta Campos.

Recording identifiers

ISRC
BRDEP1000006
CopyrightID (CopyrightChains transaction hash)
0x79dd5567c7b0d33dc66b8f59e9d4b35ea300c145439c83ebab4844ac29d62770
Copyright registration time
2026-06-18T12:56:33+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:30:09Z
Bitcoin block
956302
Canonical record hash
sha256:45b8580cd3f26a9b7e751a6e3664f4a6c304b444032b54bfaa56d2dd91891528

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.