旅立ちのうた

Recording by 3年E組.

Recording identifiers

ISRC
JPT551600875
CopyrightID (CopyrightChains transaction hash)
0x4634c22042979d5f95ef70f01257dbde77a7ad286262d2f25a46006b0de855f6
Copyright registration time
2026-06-06T08:21:30+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-06-13T17:25:41Z
Bitcoin block
953536
Canonical record hash
sha256:736d184385039e5238ab0435eb60d43696ef2eea34f5ea4aa40ad0b08629caed

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.