Introduction to Circulation

Recording by 馬場智章.

Recording identifiers

ISRC
JPY222100064
CopyrightID (CopyrightChains transaction hash)
0xc85fee91838718dd63223b693741035bd487f84b2d6a9f1a8ec141e802b14cab
Copyright registration time
2026-07-06T07:46:54+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-13T07:53:33Z
Bitcoin block
957819
Canonical record hash
sha256:d7ed9f40bee65eff592af1bf59ab2659513d7b58d65c99ab680491e513e63e82

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.