thumb|right|A recliner thumb|Recliner aboard a business jet A recliner is an armchair or sofa that reclines when the occupant lowers the chair's back and raises its front. It has a backrest that can b
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 0x4d0cf7b05f867613cbb56ccf77d94da405454c4f215cb71fba29e58955522954. Chain 2 (Bitcoin): anchored in block 954050 (2026-06-17T05:14:33Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/423f65df-db76-4d64-8485-49a54b8377ba.json and https://artists.proofprofile.net/proofs/artist/423f65df-db76-4d64-8485-49a54b8377ba.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).