長い闘いの歴史

Recording by 伊藤真澄.

Recording identifiers

ISRC
JPI102102341
CopyrightID (CopyrightChains transaction hash)
0xf3a436c836a24dc2d1bb0e0247d17ea23b54a1cf28ace44b1f9f5224b0275f03
Copyright registration time
2026-07-22T13:50:38+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-22T14:10:55Z
Bitcoin block
959138
Canonical record hash
sha256:f85bfa88bb0ff1ad586a18644c2bedecc63f1618ee9f0dd816d2e4a496f6731d

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.