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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87a3d94ebbb0ec0fb3edd0228950be6967dec84f2efe39b0f83f6f3145ec3dbc. Chain 2 (Bitcoin): anchored in block 954573 (2026-06-20T15:45:29Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b4cc8076-fee7-4ff1-9566-3727b0a1b38a.json and https://artists.proofprofile.net/proofs/artist/b4cc8076-fee7-4ff1-9566-3727b0a1b38a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Make Me Smile (from Sweet Tooth, Good Dentist Original Soundtrack)
ยิ้มได้เพราะเธอ (Make Me Smile) [เพลงประกอบซีรีส์ "แฟนที่ทันตแพทย์ส่วนใหญ่แนะนำ Sweet Tooth, Good Dentist"]
ยิ้มได้เพราะเธอ (Make Me Smile) - เพลงประกอบซีรีส์ "แฟนที่ทันตแพทย์ส่วนใหญ่แนะนำ Sweet Tooth, Good Dentist"
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 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. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0654348da00729481eb8080893184392b8d769c9d02ac3972aaf92cd44248df. Chain 2 (Bitcoin): anchored in block 958582 (2026-07-18T16:47:25Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/THG012500239.