right|Location of Grace, Idaho Gem Valley is a rural valley in Caribou County, Bannock, and Franklin counties in Idaho, United States, so named for its local gemstones which can be found throughout 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 0x9f591dc140ab203f1d24a810b2c3b56c192b4a276471be2614b6b049571f13a5. Chain 2 (Bitcoin): anchored in block 953909 (2026-06-16T07:53:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/09a67d35-cf0c-4dfc-b846-495e204146da.json and https://artists.proofprofile.net/proofs/artist/09a67d35-cf0c-4dfc-b846-495e204146da.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).