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 0xc3d50feb65a44b0086a120ea4ee24402e811d1bbcc4b7113842fc918aa8f27da. Chain 2 (Bitcoin): anchored in block 954063 (2026-06-17T07:49:29Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4843848f-415d-4847-979d-3493fefb2733.json and https://artists.proofprofile.net/proofs/artist/4843848f-415d-4847-979d-3493fefb2733.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Вперед в прошлое и немного дальше (OST к/ф "Вперед в прошлое и немного дальше")
My reflection: OST к к/ф Мое чертовски привлекательное отражение