Finik is an archaeological site in southeastern Turkey. It is located on the rocky cliffs overlooking the eastern bank of the Tigris, 14 kilometers upstream from the city of Cizre. It has been identif
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 0x1e223914d89d68c6b2ee66b180c3e1fc0a41c9b7ac648362b5f92ec7db4f17c1. Chain 2 (Bitcoin): anchored in block 953997 (2026-06-16T20:07:57Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/265a04c4-eb36-4ef3-891e-226c7dc32a88.json and https://artists.proofprofile.net/proofs/artist/265a04c4-eb36-4ef3-891e-226c7dc32a88.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).