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 0xbd8a657617bb5ff7c8b6397efe1f180546396e3ec518276dc37e2b3ed94d1e5f. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/787e40eb-c1ac-49cb-8a52-0dd32f86d473.json and https://artists.proofprofile.net/proofs/artist/787e40eb-c1ac-49cb-8a52-0dd32f86d473.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
We've Learned Nothing: Free Range Hassle 1
We've Learned Nothing: Free Range Hassle 2