Sem Contrato

Recording by Rei Lacoste.

Recording identifiers

ISRC
BCCZC2400001
CopyrightID (CopyrightChains transaction hash)
0x5925ca22dcb3177c5ebc4c7756dd70a8a3d51d0ac3869d8f64b6da6844903bf3
Copyright registration time
2026-06-27T02:40:08+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:55:08Z
Bitcoin block
956304
Canonical record hash
sha256:77fe515f19ca552feaf017c37c2b9031026288a89b642587a9f438bdd70d31b4

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.