理想郷

Recording by Toshio Masuda.

Recording identifiers

ISRC
JPE300501276
CopyrightID (CopyrightChains transaction hash)
0xaa52869b2872c96aeb79ef4d40d54cd9cc33aff5008983b2ce6af127723055b0
Copyright registration time
2026-06-18T06:18:17+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:30:09Z
Bitcoin block
956302
Canonical record hash
sha256:451ad1b130c33e0ef9ece6f24645210c2961d15c9b7aabecc2f9edf4c10d8e56

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.