warm up

Recording by Kensuke Ushio.

Recording identifiers

ISRC
USQX92003104
CopyrightID (CopyrightChains transaction hash)
0x271c44702028dd83856219682de0993b637a89e13bd751a551591c75e2ea8fc4
Copyright registration time
2026-07-07T08:35:18+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T08:56:20Z
Bitcoin block
957145
Canonical record hash
sha256:13fceabe7d74e6326ef7be189b5d53bcb7ed4385ad49b2601c8b98784ed1a87a

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.