Lullaby Blue

Recording by いとうかなこ.

Recording identifiers

ISRC
JPK631501208
CopyrightID (CopyrightChains transaction hash)
0x33726bae2f81b4f2b1d58cf0ef48fe729b8e8b51af90c4998c6e95d4138d34f3
Copyright registration time
2026-06-18T14:41:42+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:30:09Z
Bitcoin block
956302
Canonical record hash
sha256:4188bfe9aea014424cb0620472e8552e10e0f1ac702b03e8932cbb04f2dd4573

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.