TOKYO散歩

Recording by Ai Otsuka.

Recording identifiers

ISRC
JPB601700025
CopyrightID (CopyrightChains transaction hash)
0x17225ac0b117a42917d2af584d5e4ad9f878ac3264247cf4055c40ff79906186
Copyright registration time
2026-07-30T07:26:14+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-30T07:48:45Z
Bitcoin block
960222
Canonical record hash
sha256:852dbac5bfcc53804561644ba0d38a60246ecd2940690b14d834831fd3a9d4c5

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.