Por Trás Daquela Janela

Recording by José Afonso.

Recording identifiers

ISRC
PT7CG2100565
CopyrightID (CopyrightChains transaction hash)
0x216d483dd6b7ae15b0461c4aede093e0b9c98e94a80455f451b3ed58b1820fd4
Copyright registration time
2026-07-06T04:29:54+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:bc07e91d52b0cc417e853f2b07ff18b41023e253475bb3b95c14e1036601244d

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.