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 0x92a49b68efe9606289c8b3cfd76a9f7bb23c11ceb14d561d457471f8202609bc. Chain 2 (Bitcoin): anchored in block 953741 (2026-06-15T04:44:49Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a0362aa2-50b9-4272-b6e0-ac1362034c05.json and https://artists.proofprofile.net/proofs/artist/a0362aa2-50b9-4272-b6e0-ac1362034c05.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Royal Family (Original Television Soundtrack) Pt. 3
왕가네 식구들 (Original Television Soundtrack) Pt. 3
MBC 내손을잡아 Pt. 3 (Original Television Soundtrack) Pt. 3
KBS 사랑은 노래를 타고, Pt. 4 (Original Television Soundtrack) Pt. 4
착하지 않은 여자들 (Original Television Soundtrack) Pt. 5
Unkind Ladies (Original Television Soundtrack) Pt. 5
여자의 비밀 (Original Television Soundtrack), Pt. 8
훈장 오순남 (Original Television Soundtrack), Pt. 1
막돼먹은 영애씨 시즌 16 (Original Television Soundtrack), Pt. 15
하나뿐인 내편 (Original Television Soundtrack), Pt. 21
Blessing of the Sea, Pt. 4 (Original Soundtrack)
위험한 약속 (Original Television Soundtrack), Pt. 2
Bravo, My Life OST Part. 29 (Soundtrack)
The Witch's Game OST Part.3 (Soundtrack)
Crazily, Only You (Original Webtoon Soundtrack), Pt. 13
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc311d76a89c6b017432cc881338571b626991bb790af532ce52c7a8bec3e51bd. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/KRA252500617.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74a026ebf1e7f6b1cf541adeb87528c1ef7fddbeb94d60927e4d2ec8b7061ee3. Chain 2 (Bitcoin): anchored in block 957776 (2026-07-13T00:05:10Z), 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/KRA252500946.
Catch Your Luck (Original Television Soundtrack), Pt. 6
The Love Code: Loop of Death (Original Webdrama Soundtrack), Pt. 1