Balada do Outono

Recording by José Afonso.

Recording identifiers

ISRC
PT7CG2400851
CopyrightID (CopyrightChains transaction hash)
0xfcfb36739c76412c5f35836d1609e983e06bcbea744b39f0e2056188e58725b6
Copyright registration time
2026-07-07T15:14:25+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:ac0ef1f93c0f43081023e3bd5f4c00b18307ac0c70bd513a0150f122d3d653a9

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.