Porto

Recording by Renato Braz.

Recording identifiers

ISRC
BRAPI0302084
CopyrightID (CopyrightChains transaction hash)
0xd66b990778c6c090ec89e53cc6b22e77b04d2405bdbd6463cdff2e3e1db5cfa6
Copyright registration time
2026-06-19T14:40:13+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:30:09Z
Bitcoin block
956302
Canonical record hash
sha256:098fc780081106320a33bc2f847190524451b6ee91e41000500ee575ad34af89

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.