Velhos Tempos

Recording by Guilherme Lacerda.

Recording identifiers

ISRC
BRGAK1600018
CopyrightID (CopyrightChains transaction hash)
0x62f6253f0258ba5a2a7effc7332feeb9b1b6b3c1f72367bb852eeb359e8c260d
Copyright registration time
2026-07-31T13:37:15+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-31T13:50:38Z
Bitcoin block
960410
Canonical record hash
sha256:c0eadf498017b7c0f178474e929e14506c610276bf73937d43cecfcfe5a93762

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.