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 0x6a51abee399025817f8ae8f0a2f9cb4bfd25143a6d6c1975a10d504af7f6ac03. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/175d9f51-a6ec-496d-be9f-7fac326be7b8.json and https://artists.proofprofile.net/proofs/artist/175d9f51-a6ec-496d-be9f-7fac326be7b8.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
เพื่อนพักใจ (Soundtrack อย่าเล่นกับอนล Bed Friend Series)