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 0x9b83c13e18abafed00a632d2799fe624176260fe253c00dd7340c2a69cd33a0a. Chain 2 (Bitcoin): anchored in block 954346 (2026-06-19T03:51:26Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9398454a-290e-4241-af6a-ddc0baf2e675.json and https://artists.proofprofile.net/proofs/artist/9398454a-290e-4241-af6a-ddc0baf2e675.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
С​п​і​в​а​л​о Г​і​л​л​я В​і​т​р​а​м К​р​и​ж​а​н​и​м (The Branches Sang to the Frozen Winds)