Tilly may refer to: Places France Tilly, Eure, in the Eure département Tilly, Indre, in the Indre département Tilly, Yvelines, in the Yvelines département Tilly-Capelle, in the Pas-de-Calais dép
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 0x5cb2734c64247c2a34456cadb95b04511a10a2f626f444afca447218b42ca0e6. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/008fe2f4-9efa-4a1e-9fc8-28edb571387c.json and https://artists.proofprofile.net/proofs/artist/008fe2f4-9efa-4a1e-9fc8-28edb571387c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).