thumb|330px|Moai facing inland at Ahu Tongariki, restored by Chilean archaeologist Claudio Cristino in the 1990s Moai or moꞌai ( ; ; ) are monolithic human figures carved from stone by the Rapa Nui p
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 0x8d21d980d9a65635c67f7ea6f953e893f33a33098b7dd2e8b54883637be39401. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7a15f212-1544-4879-a94d-f85284d56475.json and https://artists.proofprofile.net/proofs/artist/7a15f212-1544-4879-a94d-f85284d56475.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).