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
2026-07-02T16:51:38Z
Bitcoin block
956375
Canonical record hash
sha256:adb3b3493728099a1c7a68be281d9cd7339828741b127150f471e2c55a20012a

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.