Sophie is a feminine given name, another version of Sophia, from the Greek word for 'wisdom'. People with the name Born in the Middle Ages Sophie, Countess of Bar (c. 1004 or 1018–1093), sovereign C
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 0xfb0000dab377842d1a5d2838d26479a9989e8d08108efbcabe84618f5b158a0a. Chain 2 (Bitcoin): anchored in block 954631 (2026-06-21T02:46:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ce1a9885-1b93-4406-afde-3431cb7f4fd1.json and https://artists.proofprofile.net/proofs/artist/ce1a9885-1b93-4406-afde-3431cb7f4fd1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).