Foi Ontem

Recording by Artur Batalha.

Recording identifiers

ISRC
PT2EO0800416
CopyrightID (CopyrightChains transaction hash)
0xab63f5a0efa0c0ea552677eeeed8cec7f75f6af81a024f03d46d57b5aefdc9cf
Copyright registration time
2026-07-07T17:20:43+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:5b8c4ed6af42f68a3edef54b04546518219abbf9ff94f15e62df4c80349211e0

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.