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 0x5f007ff959f3d2023962d9c94b4541380be7d6f41e61c51eaf40bc7d6916482e. 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/51647ce1-081b-4f5f-8f52-4a69c1e31d37.json and https://artists.proofprofile.net/proofs/artist/51647ce1-081b-4f5f-8f52-4a69c1e31d37.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
청담동 스캔들 (Original Television Soundtrack), Pt. 1
The Best Wedding (TV CHOSUN DRAMA) OST Part.1
The Best Wedding OST Part.1 (Soundtrack)
Class OST - Somewhere out there (Soundtrack)
Class- Somewhere out there (Original Television Soundtrack)
일편단심 민들레 (Original Television Soundtrack) Pt. 4
블러드 (Original Television Soundtrack) Pt. 2
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 0xb56e721753b21044bea05366a22c5f06b5da413eeeb2f052cdd4a6e7b1fe5e12. Chain 2 (Bitcoin): anchored in block 958726 (2026-07-19T11:47:20Z), 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/KRA381209895.
Blood (Original Television Soundtrack) Pt. 2
블러드 (Original Television Soundtrack) Part. 2
울지않는 새 (Original Television Soundtrack) Pt.1
A Bird That doesn`t Sing (tvN DRAMA) OST Part.1
딱 너 같은 딸 (Original Television Soundtrack), Pt. 1
A Daughter Just Like You (MBC Drama) OST Part.1
My Mother is a Daughter-in-Low (SBS TV DRAMA) OST Part.7
어머님은 내 며느리 (Original Television Soundtrack), Pt. 7
도전에 반하다 , Pt. 2 Original Television Soundtrack
시간이 흘러도 - 도전에 반하다 (Original Soundtrack), Pt.2
우리집 꿀단지 (Original Television Soundtrack) Pt.5
마녀의 성 (Original Television Soundtrack), Pt. 6
Glomorous Temptation (MBC DRAMA ) OST Part.12 (Soundtrack)
Gorgeous Temptation OST Part.12 (화려한 유혹 OST Part.12)
화려한 유혹 (Original Television Soundtrack), Pt. 12
Glomorous Temptation (MBC DRAMA ) OST Part.12
욱씨남정기 (Original Television Soundtrack) Pt. 6
욱씨남정기 (Original Television Soundtrack) Part. 6
좋은 사람 (Original Television Soundtrack), Pt. 2
A Good Person (MBC TV DRAMA) OST Part.2 [Soundtrack]
사랑하니까 (from "다시 시작해, Original Television Soundtrack, Pt. 4")
Let`s Start Again (MBC Drama) OST Part.4
올레 Special Song (Original Motion PictureSoundtrack)
사랑이 오네요 (Original Television Soundtrack), Pt. 8
Ugly Miss Young-ae Season 15 (tvN DRAMA) OST Part.9
막돼먹은 영애씨 시즌 15 (Original Television Soundtrack), Pt. 9
사랑은 방울방울 (Original Television Soundtrack), Pt. 3
Mysterious Personal Shopper OST Part.6 (Soundtrack)
Mysterious Personal Shopper (KBS 2TV DRAMA) OST Part.6
인형의 집 (Original Television Soundtrack), Pt. 6
시를 잊은 그대에게 (Original Television Soundtrack), Pt. 12
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b70ad4fc269f02b492800b7e49c59cc39a0d9c4f8b658ee480cfb1d226f2f9b. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/KRZ291810347.
Sunny Again Tomorrow (KBS 1TV Drama) OST Part.4
내일도 맑음 (Original Television Soundtrack), Pt. 4
내일도 맑음 (Original Television Soundtrack), Pt. 17
끝까지 사랑 (Original Television Soundtrack), Pt. 17
Love To The End (KBS 2TV Drama) OST Part.17
차달래 부인의 사랑 (Original Television Soundtrack) Pt.2
The Hymn of Death OST Part. 2 (Soundtrack)
The Hymn of Death Pt. 2 (Original Television Soundtrack)
차달래 부인의 사랑 (Original Television Soundtrack) Pt.17
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e1dca14827d7ebb511523efa458ecf96bf2077d21a8a2dbd26b1cf82670234f. Chain 2 (Bitcoin): anchored in block 959084 (2026-07-22T00:50:00Z), 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/QZEKE1843770.
신과의 약속 (Original Television Soundtrack), Pt. 4
하나뿐인 내편 (Original Television Soundtrack), Pt. 25
하나뿐인 내편 (Original Television Soundtrack), Pt. 33
Hotel del Luna (Original Television Soundtrack) Pt.11
Say Goodbye (Instrumental) (Instrumental)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d2d476c981bef86f145ae70378dad5d1e2e7552c142c50e187844fd0fa80ccb. Chain 2 (Bitcoin): anchored in block 958371 (2026-07-17T05:45:43Z), 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/KRA381903888.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f190c3df519ea211add45ddedefd98d4d74e09720029c2be35f474266874d9b. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/KRA382005948.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8be799d274bed0f9c77a3b72785f7a44dac4172690cee00ec91dda0d9537c8e9. Chain 2 (Bitcoin): anchored in block 959096 (2026-07-22T03:48:36Z), 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/KRA382204210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c5bd066318a4c9756778f4548a78ddadb775ca2b07ddcb4196b6e0c21800518. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/KSA012262724.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafa6293965bde7b1d0b0720295dde744d95850f70d897caecbafc85b8451707a. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QZNCB2184635.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71a331df1fccf80d77006e5dd867a7fe4e71899a521f9c5e96fe7fc6aef82e0b. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T00:01:46Z), 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/KRA382206658.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc70870d23aeeae85b6ece6a868958de23d208410637cdb0e0e6eaf9fbc25337. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/KRB472301156.
사랑이라 쓰고 이별이라 읽어 (Write love and Read breakup)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x271e1cd156cb6021ca9928c36fd558e8b0186672bae7ebba050538925ef74a4a. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/KRB922304481.
Like A Dream (From "The story of Park’s marriage contract" Original Television Sountrack, Pt. 4)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x741ccbb1b30cc41bc447f38fb2bd7be593e11735c8f32a9a82b988b7cc9b214c. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/KRB922400639.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x108077f9f77d259ba0cd8234d52efa9756166602a4145fb83a97d70331377ddd. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/KRB922402576.
미녀와 순정남 (Original Television Soundtrack), Pt. 6
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40ffbbec73a323e11f772793ffc784a96d612faac08e5fcb59745f52d5a38e3c. Chain 2 (Bitcoin): anchored in block 958075 (2026-07-14T22:55:31Z), 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/KSB012311561.
Beauty and Romantic OST Part.6 (Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40ffbbec73a323e11f772793ffc784a96d612faac08e5fcb59745f52d5a38e3c. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/KSB012311561.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29e2c7fa1ace147a508af60216924eb8594acb10c34f81d046b915ac82487fec. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/KRB472401055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd79da3ad8f9ad6257e0ffa22f0f62ed72c40c186aacbbbeb636153348827e939. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/KRB922420117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1500a77088c5a9b711dabf213e0f890b005e297ca91c725c99ba7c1fb24ffeb0. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/ZZA0P2410177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03f592d54de747e4abc45f40aa2e54be46a3f677be8a06da18898f196b21e04f. Chain 2 (Bitcoin): anchored in block 958752 (2026-07-19T16:00:28Z), 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/KRMIM2523395.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf24393e01b9a28ffcef4e3e8ace9f8d7699ad8e72f5f5a3769169d7ab9cd2a70. Chain 2 (Bitcoin): anchored in block 957780 (2026-07-13T00:36:44Z), 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/KRB922508186.
영화 한편 본 것 같아 (As If I Watched a Movie) (Inst.)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03aeee3d5f56da6e84eb2afeb53d548ddfdb66c36ba0e4013d595715513552a8. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/KRB922524076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc8203e4f0e35c3381e7e0b2b93f2ea193938e955e56cfbc9ca7b88c774f4de6. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/KRA382204209.