Regresso

Recording by Silveira & Barrinha.

Recording identifiers

ISRC
BRMCD0900048
CopyrightID (CopyrightChains transaction hash)
0x22619ae4e82514d9e80562c1f99e3d4d9b100361d8faf3f617f0e9a0fab288b9
Copyright registration time
2026-07-07T23:15:27+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:39:04Z
Bitcoin block
957122
Canonical record hash
sha256:0681d6f14c5ff0c70bd865c2dac836db1cc5e7dbd2305c7181445bdd1c582274

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.