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 0xba15f440e13aa7f146d4a6c5b31fa659ce91ceae73ed208a0a51c89bf9523c37. Chain 2 (Bitcoin): anchored in block 953982 (2026-06-16T17:42:23Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2d106a6a-b12c-4fb3-9b6c-5e05bf530064.json and https://artists.proofprofile.net/proofs/artist/2d106a6a-b12c-4fb3-9b6c-5e05bf530064.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Ugly Miss Young-ae Season 15 (tvN DRAMA) OST Part.22
막돼먹은 영애씨 시즌 15 (Original Television Soundtrack), Pt. 22
저 하늘에 태양이 (Original Television Soundtrack), Pt. 17
Father, I'll Take Care of You, Pt. 22 (Original Soundtrack)
훈장 오순남 (Original Television Soundtrack), Pt. 23
꽃피어라 달순아 (Original Television Soundtrack), Pt. 25
내일도 맑음 (Original Television Soundtrack), Pt. 30