Twice

Recording by Billie Bird.

Recording identifiers

ISRC
FR6V82195832
CopyrightID (CopyrightChains transaction hash)
0x9bcb17b81deab0ec68ca1e01e46eb5d65c6abe93d40655fd299cf9de997493fa
Copyright registration time
2026-06-25T05:57:12+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:55:08Z
Bitcoin block
956304
Canonical record hash
sha256:05fdec1fd89669fda55491c4ae1f8fe9c361ba98c22f9c931b8c0b6dc226eefa

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.