thumb|upright=1.3|right|Sabering the champagne bottle with a specialized dull sword thumb|Opening of magnum bottle of the Champagne wine with a glass strike is a ceremonial technique for opening a s
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 0x76ae90f5b2bba54c7fe4ce3d496944c9e2cbe0f2a48ce19b7402d9ede0a9053c. Chain 2 (Bitcoin): anchored in block 953592 (2026-06-14T05:36:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/05d6e1e5-aa85-4f16-975e-4e484530b189.json and https://artists.proofprofile.net/proofs/artist/05d6e1e5-aa85-4f16-975e-4e484530b189.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).