Tomorrow Waltz

Recording by Toshinobu Kubota.

Recording identifiers

ISRC
JPU900901941
CopyrightID (CopyrightChains transaction hash)
0x9cde4cc5f8cb503808b73f686b00541431860e3ba975ba39bd69e64a7258f22a
Copyright registration time
2026-06-20T21:47:16+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:30:09Z
Bitcoin block
956302
Canonical record hash
sha256:4e377d84d11f6d3afad4f09a517bdd594b83b22123c31a821fda7afae3d3f12a

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.