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 0x70dfe96de80d7943cc73e8ce3d1d3698eb01e9dc33c1b0dc2391119fdcf83dd5. Chain 2 (Bitcoin): anchored in block 953864 (2026-06-16T00:30:31Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/055bc88d-c823-41ec-b82e-5b4db12f9843.json and https://artists.proofprofile.net/proofs/artist/055bc88d-c823-41ec-b82e-5b4db12f9843.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Father, I'll Take Care of You, Pt. 14 (Original Soundtrack)
차달래 부인의 사랑 (Original Television Soundtrack) Pt.25
여름아 부탁해 Pt. 30 (Original Television Soundtrack)
여름아 부탁해 (Original Television Soundtrack), Pt. 30
우아한 모녀 (Original Television Soundtrack) Pt. 13
우아한 모녀 (Original Television Soundtrack), Pt. 13
기막힌 유산 (Original Television Soundtrack) Pt.22
No Matter What (Original Television Soundtrack) Pt. 24
누가 뭐래도 (Original Television Soundtrack), Pt. 24
빨강 구두 (Original Television Soundtrack), Pt. 22
Bravo, My Life OST Part. 39 (Soundtrack)
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 0x21f3deafe47bc84c58abaaf07ee1b7b99074a74505344cb1bc4a1c1972bef850. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNCB2185796.
Coffee Fox Kim Sam Wol OST Part.7 (Soundtrack)
바이트미 (Original Webtoon Soundtrack) Pt.18
Taepung's Bride OST Part.28 (Soundtrack)
오, 보이! (Original Television Soundtrack), Pt. 21
카페 앵커리지 (Original Television Soundtrack), Pt. 28
PETER PANDA (Original Webtoon Soundtrack) Pt.25
잉어님과 떡볶이 (Original Television Soundtrack), Pt. 22
악녀로 살라신다 (Original Television Soundtrack), Pt. 29
베이비 드래곤 (Original Webtoon Soundtrack) Pt. 18
가짜 공녀님의 만렙 토끼 (Original Television Soundtrack), Pt. 20
버려진 왕녀는 반역한다(Original Webtoon Soundtrack) Pt.21
사랑도 없이 결혼 (Original Television Soundtrack), Pt. 15
죽이고 싶은 나의 전복 왕자님 (Original Television Soundtrack), Pt. 10
뱀은 꽃을 먹는가 (Original Webtoon Soundtrack) Pt.17