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 0x072f49b24c7cb9a2f2d8410b2eb3349a76560621e2bb2122065c064579f4fa25. Chain 2 (Bitcoin): anchored in block 954638 (2026-06-21T03:45:44Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d43ab300-628c-463c-8803-cba079f8b8e0.json and https://artists.proofprofile.net/proofs/artist/d43ab300-628c-463c-8803-cba079f8b8e0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
ethereal (thoughts and feelings are beyond us)
ethereal (thoughts and feelings are beyond us: re-works)