ISRC US83Z2039558
Verified recording
US83Z2039558 is “Avvakoum” by Jack Essek,
registered on the CopyrightChains blockchain with CopyrightID
0xe5869e7344cbf98789b210ecfc396742a81faa71f1339656f40adaf25389617b and independently timestamped
in Bitcoin block 960273 on 2026-07-30.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US83Z2039558.
Recording identifiers
- ISRC
- US83Z2039558
- Title
- Avvakoum
- Artist
- Jack Essek
- CopyrightID (CopyrightChains transaction hash)
0xe5869e7344cbf98789b210ecfc396742a81faa71f1339656f40adaf25389617b
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-30T15:42:38+00:00
- Bitcoin block
- 960273
- Canonical record hash
sha256:799d3da6fac4f6ef290bbb2c18294f953b8172299c44e1a25c886b88fd874c99- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US83Z2039558
- Bitcoin block existence check
- https://blockstream.info/api/block/960273