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 0xced1e2222a6c2f689f907127eac0ac19580f566eb992a570641a0ad3dac92cb1. Chain 2 (Bitcoin): anchored in block 953625 (2026-06-14T11:37:06Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/257c33b3-9e6e-4d97-bade-ae91a0bc755e.json and https://artists.proofprofile.net/proofs/artist/257c33b3-9e6e-4d97-bade-ae91a0bc755e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
親親我的寶貝 (影視劇《看不見影子的少年》插曲)