悲しみ

Recording by Takashi Kako.

Recording identifiers

ISRC
JPSR09909088
CopyrightID (CopyrightChains transaction hash)
0xfe642dee6de521ab0212cad23d2fd6f57584dea99ba1e535317f01050e22c169
Copyright registration time
2026-07-30T16:29:18+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-30T17:26:40Z
Bitcoin block
960285
Canonical record hash
sha256:8116c4838f980da1c87bad2ddd3c50b39061909b215fb5532017b664eac0123e

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.