Poesia de Sexta Feira

Recording identifiers

ISRC

BXDF91600001

CopyrightID (CopyrightChains transaction hash)

0x2c8bd391661f5e19b883f35f8804d12185c4b0a7090c9f3fd27ad1cd15d774ba

Copyright registration time

2026-06-04T15:25:34+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-06-13T12:47:07Z

Bitcoin block

953513

Canonical record hash

sha256:3dc26855cdd6ccd21ac91b32de9d61315cdc651878fd6696f51a4a3f4e32522a

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result

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.