Balada de Outono

Recording by José Afonso.

Recording identifiers

ISRC
PT7CG2300810
CopyrightID (CopyrightChains transaction hash)
0x8efd061c444ca73d09d2ebaa6521e83ee0e0a77def1a2787d88acfe3005d8247
Copyright registration time
2026-06-28T00:53:10+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:0b07dce7072f7e6557a624a53097b32721317bc3d1fc8273cf21b811a1872ace

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.