thumb|Timber framed with siding of vertical boards was typical in early New England. The traditional color is the result of iron oxide stain applied to protect the wood from UV damage. thumb|The Texas
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 0x8a6c2cbdda7b265d9db37eec5a0181cf5af474155769824e7afe1c1212396806. Chain 2 (Bitcoin): anchored in block 954650 (2026-06-21T04:51:12Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d8b1adaa-658d-4daa-bd7c-7b9a9fa6315f.json and https://artists.proofprofile.net/proofs/artist/d8b1adaa-658d-4daa-bd7c-7b9a9fa6315f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).