Smalltime Practice

Recording by 広川恵一.

Recording identifiers

ISRC
JPT332400062
CopyrightID (CopyrightChains transaction hash)
0x05ae16579b876caa1da25cc3c29e8a90b0169bb2fe95d2f9defa19360bfd739e
Copyright registration time
2026-06-20T08:38:05+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:30:09Z
Bitcoin block
956302
Canonical record hash
sha256:3d0d14bbeb6658cdc8350db3e45891d593f94820105c3f6c8cd66c385892535e

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.