丸の内サディスティック

Recording by Kie Katagi.

Recording identifiers

ISRC
JPZ921901179
CopyrightID (CopyrightChains transaction hash)
0xf43a53d7e945ad14a3430cffc8e6f14f9c554b96a390fff6276d96fb7e4b1741
Copyright registration time
2026-06-19T21:10:35+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:55:08Z
Bitcoin block
956304
Canonical record hash
sha256:5bef4a568e3acf817a77a1bd245667468526094d9b8a3f948f4fb18e5305d11a

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.