Dois De Fevereiro

Recording by Dorival Caymmi.

Recording identifiers

ISRC
DETL61615462
CopyrightID (CopyrightChains transaction hash)
0x5dfb0936929f6e77533faa73b2259b637396314a4b937319f8fcbfec2ce63c33
Copyright registration time
2026-07-06T23:59:59+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:f39be5b8bebcbfabad61e964d3b54fae1a488ebfa16ce771a9b2624d6150bf0c

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.