thumb|Photo of Sally Thorne Sally Elizabeth Thorne CM, PhD, FAAN, FCAHS, FCAN, RN (born 1951) is a Canadian academic nursing teacher, researcher and author. She has studied the human experience of chr
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 0x6bf2a452e36cceed90414539fb9451ca3af1ae4f5aaea962f9a80af7aec760a2. Chain 2 (Bitcoin): anchored in block 954717 (2026-06-21T15:47:51Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f3e95027-39d7-481f-b7a3-23690dc64e91.json and https://artists.proofprofile.net/proofs/artist/f3e95027-39d7-481f-b7a3-23690dc64e91.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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