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
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:025efa276bfead08a15656b707e5b885e4ff8cd2c305aadf625a0f46f85aa014

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.