ISRC ES7712313204
Verified recording
ES7712313204 is “Toshiko's Blues” by Toshiko Akiyoshi,
registered on the CopyrightChains blockchain with CopyrightID
0x67302e81a639644cc6efb74cae54da5038b9b4c37876901816ec7299936fa46e and independently timestamped
in Bitcoin block 960407 on 2026-07-31.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES7712313204.
Recording identifiers
- ISRC
- ES7712313204
- Title
- Toshiko's Blues
- Artist
- Toshiko Akiyoshi
- CopyrightID (CopyrightChains transaction hash)
0x67302e81a639644cc6efb74cae54da5038b9b4c37876901816ec7299936fa46e
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-31T13:26:30+00:00
- Bitcoin block
- 960407
- Canonical record hash
sha256:838a81ed6b2e66996ed02019bf6a8131e9d277da92384b30b79e4d5f824d8305- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES7712313204
- Bitcoin block existence check
- https://blockstream.info/api/block/960407