Yannis, Yiannis, or Giannis ( ; ) is a common Greek given name, a variant of John (Hebrew) meaning "God is gracious." In formal Greek (e.g. all government documents and birth certificates) the name e
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x338907f51ebd65281544e5d34e1d4579fe789790628addd6b908734f656b70ec. Chain 2 (Bitcoin): anchored in block 953857 (2026-06-15T23:34:38Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/02ca58ca-7e7f-4d83-88c9-08131a98cb62.json and https://artists.proofprofile.net/proofs/artist/02ca58ca-7e7f-4d83-88c9-08131a98cb62.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).