A Maid's Requiem

Recording by Yoshihiro Ike.

Recording identifiers

ISRC
JPZ922213155
CopyrightID (CopyrightChains transaction hash)
0xf2a0165e1b5176b4afdeb03c85921d84be30b052ed0ebf4a4ad4f4bd2e47a98e
Copyright registration time
2026-07-07T14:28:10+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:8f2b28fcfe86ec654396432e8dc9fb8540165117416709bc56510f4d38ae62d3

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.