Negão

Recording by Chico César.

Recording identifiers

ISRC
BRCOH1500010
CopyrightID (CopyrightChains transaction hash)
0xd790a8d7b08d39c9833d0b767c04838d6d9676a6f5e502bf45d7c5aa4127fc6f
Copyright registration time
2026-06-20T23:07:44+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:30:09Z
Bitcoin block
956302
Canonical record hash
sha256:3c6b6b231a366c1e631c209524f4703087cfefefb221baf0123e14dbfe754c9c

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.