1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x38d5717359a9500823b6f035780b3469d8d15f5c0760d11ab7b2b0b4f3fc48e2. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7b9e5cf3-725b-43ad-af41-08046e4f6622.json and https://artists.proofprofile.net/proofs/artist/7b9e5cf3-725b-43ad-af41-08046e4f6622.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
I don't know. (feat. T-SLUGGER & bantea)