The term Great Bear can refer to: Ursa Major, the constellation, whose name is the Latin for "Great Bear" Great Bear Lake, the largest lake in the Northwest Territories of Canada and the fourth lar
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 0xc0d0036c2ff68f44caee10bcb2cb1048d42c1554070163c5927438ba34a09425. Chain 2 (Bitcoin): anchored in block 954784 (2026-06-22T02:53:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e12c1f39-4dc1-40da-975d-14d76893e610.json and https://artists.proofprofile.net/proofs/artist/e12c1f39-4dc1-40da-975d-14d76893e610.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).