悲しみ深く

Recording by Yasuharu Takanashi.

Recording identifiers

ISRC
JPT551900891
CopyrightID (CopyrightChains transaction hash)
0x5a6e304a68a5e651fd48441b09107d7b391c77fc6936b81722e4bf3651c56c38
Copyright registration time
2026-07-07T02:03:58+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:53:27Z
Bitcoin block
957124
Canonical record hash
sha256:8b5d760ffd084a7d58bdcd7a2380c5b6cd72e2233260eafd303eb7fd540c5ec8

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.