Dia de Feira

Recording by Marta Pereira da Costa.

Recording identifiers

ISRC
ES69I2401476
CopyrightID (CopyrightChains transaction hash)
0x7c5322375a74ed98817c079cb3d216b68e0aa014b07c2086d246d2eaecadbd54
Copyright registration time
2026-06-21T10:05:48+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:30:09Z
Bitcoin block
956302
Canonical record hash
sha256:c38a3efd089bdb0b72f7fd50116e6e728fe9ca567a35587bc1e0ca3eac08834d

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.