Caneta e Papel

Recording by Os Arrais.

Recording identifiers

ISRC
BRTD91500004
CopyrightID (CopyrightChains transaction hash)
0x22acf5713dbe80d0d644e33e6043e7d1385042b4eb8324363ab7f44f1168981a
Copyright registration time
2026-06-04T15:44:14+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-06-13T12:47:07Z
Bitcoin block
953513
Canonical record hash
sha256:3db6a935b90db6796b1c508c625a1d2860c8b7f6eddca4969ff60a3ce4081270

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.