thumb|Pelias sends forth Jason, in an 1879 illustration from Stories from the Greek Tragedians by Alfred Church. Pelias ( ; ) was king of Iolcus in Greek mythology. He was the one who sent Jason on t
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 0x299c2aec1bf92f4d240ad6b7c8ea50a1892eca54dc9b4b149ec38c5b0d30b2f6. Chain 2 (Bitcoin): anchored in block 953949 (2026-06-16T13:28:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0f7c4077-c1d6-43f1-8ab5-3c12793b6386.json and https://artists.proofprofile.net/proofs/artist/0f7c4077-c1d6-43f1-8ab5-3c12793b6386.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).