ISRC JPU901802619
Verified recording
JPU901802619 is “Improvisation_20171215” by Ryuichi Sakamoto,
registered on the CopyrightChains blockchain with CopyrightID
0x53444e5f85255874fe3f3ceeabb4cb832062b3e5244fb6b4e273659587ee69e6 and independently timestamped
in Bitcoin block 956304 on 2026-07-02.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPU901802619.
Recording identifiers
- ISRC
- JPU901802619
- Title
- Improvisation_20171215
- Artist
- Ryuichi Sakamoto
- CopyrightID (CopyrightChains transaction hash)
0x53444e5f85255874fe3f3ceeabb4cb832062b3e5244fb6b4e273659587ee69e6
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-02T03:55:08+00:00
- Bitcoin block
- 956304
- Canonical record hash
sha256:dc101f91d7e2963f839b385da545b3b5dd1120765cc4e821e932f3132ca9baea- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPU901802619
- Bitcoin block existence check
- https://blockstream.info/api/block/956304
Full record
Track page: Improvisation_20171215 · Machine-readable JSON-LD