Francisca

Recording by Toninho Horta.

Recording identifiers

ISRC
USF068927520
CopyrightID (CopyrightChains transaction hash)
0x28c6dbb11eb075d47b06dafcaa03fae84e16018bc6d5aba960f194422c12ccc2
Copyright registration time
2026-06-22T04:44:30+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:55:08Z
Bitcoin block
956304
Canonical record hash
sha256:f39b5221655d6c69343eeebe1159895bea1bde3a3a32544c9c81f26f9e79866b

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.