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 0x08fffb560db36a74804a0cb5646a3d5eee29b7beebdd4037609de6b610fd7a7b. 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/4341c42a-b04c-40c7-a660-bbfccc9efe54.json and https://artists.proofprofile.net/proofs/artist/4341c42a-b04c-40c7-a660-bbfccc9efe54.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
เปลี่ยนใจแล้ว (Second Thoughts) - Single
เปลี่ยนใจแล้ว (Second Thoughts) [เพลงประกอบซีรีส์ Our Skyy ชอกะเชร์คู่กันต์]
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 0x9cfe6e1ab5febe175ab9f0ab5420e8e36d0fbc23497deedb91980bce7e43d6cf. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/THG012300241 — a six-check JSON result.
Second Thoughts (from Our Skyy A BOSS AND A BABE Original Soundtrack)
เปลี่ยนใจแล้ว (Second Thoughts) [เพลงประกอบซีรีส์ "Our Skyy ชอกะเชร์คู่กันต์"]
Love Suspect (from Perfect 10 Liners Original Soundtrack)
ผู้ร้ายปากแข็ง (Love Suspect) [เพลงประกอบซีรีส์ "สายรหัสเทวดา Perfect 1 Liners"]