thumb|upright=1.2|Adults and children huddle during a community football game in Kota Kinabalu thumb|The Meralco Bolts huddle in a time-out during a 2024 Philippine Basketball Association game. In spo
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 0x9f4de455b7024a8c5e1110bf132b1029ffeb928f3f1bd8eb12dce3570fc97e0c. Chain 2 (Bitcoin): anchored in block 954784 (2026-06-22T02:53:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e663d889-b65d-48f9-b279-8b156dff17b6.json and https://artists.proofprofile.net/proofs/artist/e663d889-b65d-48f9-b279-8b156dff17b6.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).