Lado B Lado A

Recording by O Rappa.

Recording identifiers

ISRC
BRWMB9901173
CopyrightID (CopyrightChains transaction hash)
0x2c9d7bed581dbb967ee8b3ac00b11f2974565cdc82aa86bf38ce781f63393f6f
Copyright registration time
2026-06-04T05:09:51+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-06-13T12:47:07Z
Bitcoin block
953513
Canonical record hash
sha256:a3c6dd57ad8b5ee386cc22c29dcb77d08d2b9b7f450bb1ec0873c5a7a73a9f1b

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.