哀しさと強さと

Recording identifiers

ISRC

JPPI01554360

CopyrightID (CopyrightChains transaction hash)

0xa9edf04f69b4a02c6f1781214b57aab0898fa8c3e31c05afbac50f3016e7bc75

Copyright registration time

2026-07-07T19:33:14+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-08T08:56:20Z

Bitcoin block

957145

Canonical record hash

sha256:03c50e562a9ad706f7639675e0a5a0395598e7428a0d5312f2994096e2918adf

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result

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.