Wilhelm Carl Grimm (also Karl; 24 February 178616 December 1859) was a German author, philologist and anthropologist. He was the younger brother of Jacob Grimm, of the literary duo the Brothers Grimm.
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 0x640429e7cb7ec29ed9ed6c656fe83c9de7fe36db54424853ac5fb35fb9b80159. Chain 2 (Bitcoin): anchored in block 953699 (2026-06-14T22:00:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/691d4d3c-debe-4633-b86e-b681fb8f3368.json and https://artists.proofprofile.net/proofs/artist/691d4d3c-debe-4633-b86e-b681fb8f3368.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).