thumb|280px|right|High end or professional grade jointer-planer discernible by the integral vacuum reservoir, metal blade guard, and the very long infeed and outfeed tables. The moderately wide (4-8 i
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 0x8669d68a3e6d284d99707af04d20c0bd007c3bf0b2098a4548fbce3b8994e1d5. Chain 2 (Bitcoin): anchored in block 954569 (2026-06-20T14:36:29Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b2fc2f29-cd62-4b64-83af-b28e1afe1e33.json and https://artists.proofprofile.net/proofs/artist/b2fc2f29-cd62-4b64-83af-b28e1afe1e33.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).