Carta aberta

Recording by BK.

Recording identifiers

ISRC
BXA5K2200008
CopyrightID (CopyrightChains transaction hash)
0xcfd9a30f420153a5aee4e817375cc5ec957ae07899ba1b4ecbe25017471860bb
Copyright registration time
2026-06-04T06:14:30+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-06-13T12:47:07Z
Bitcoin block
953513
Canonical record hash
sha256:982b9bfd0cb1eb8a3bb75b86e1d1cc02cdfd0bde99e0045357bc90dc27e2387e

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.