Souli () is a municipality in Epirus, northwestern Greece. The seat of the municipality is the town of Paramythia. Name and history The origin of the name Souli is uncertain. In the earliest historic
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 0x361d1e5122980eb45d8b196ea317dd68dd51b048e011cfd82d5a934678095d9d. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/893b807d-888e-4e93-8c27-19d415bb0a78.json and https://artists.proofprofile.net/proofs/artist/893b807d-888e-4e93-8c27-19d415bb0a78.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).