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 0x2ff5f7a0ae0ab69a84f4e89d8b9ca08aba1dc459739f4814ea6946904d9e42d1. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b7689929-ccec-4dd6-b0cb-f8bc87e04f51.json and https://artists.proofprofile.net/proofs/artist/b7689929-ccec-4dd6-b0cb-f8bc87e04f51.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
跪天跪地跪親娘 (電視劇《滿秋》片尾曲)