山も海も越え [楽譜番号 青本:86]

Recording by Chu Kosaka.

Recording identifiers

ISRC
JPS801852836
CopyrightID (CopyrightChains transaction hash)
0x38db3ac4f0833e68fe05d9c439c0fbd4cb1afd19e40896341d6062a945280a80
Copyright registration time
2026-07-06T08:19:41+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-07T18:39:05Z
Bitcoin block
957073
Canonical record hash
sha256:25a6420ec43ccf934541baa1f2b321b3f87f9710543d20ca07846d81b0dbed0f

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.