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 0xaaf570b0000595d00908ebc90e8d126ad5e6e3908ced86d6a0e534b5f5e78293. Chain 2 (Bitcoin): anchored in block 953742 (2026-06-15T04:47:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/99e787c3-1347-4f99-a1df-e03a4c51baec.json and https://artists.proofprofile.net/proofs/artist/99e787c3-1347-4f99-a1df-e03a4c51baec.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
착하지 않은 여자들 (Original Television Soundtrack) Pt. 2
착하지 않은 여자들 (Original Television Soundtrack) Part. 2
Unkind Ladies (Original Television Soundtrack) Pt. 2
Hidden Identity (Original Television Soundtrack), Pt. 3
Hidden Identity (Original Television Soundtack), Pt. 3
HWARANG, Pt. 8 (Music from the Original TV Series)
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 0xffab8981ba43224baa4aaa7cd6347f9ff468fdcdf941f4a87da6dd6ad4c5734a. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T17:14:36Z), 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/KRB461700069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc63d9aed4f86de4ad8770eff2efcb373e4445b669f6e280ce68d231aed051328. 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/KRB461700070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae2b8bb3544bcdde448c97ba0c9a007451ed5e906359a797425f76eadad7b477. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/KRB461700071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05ce01457dd0863621abbd584dbdee2da5c98be58280a085f83622fe74069fda. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T19:49:12Z), 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/KRB461700096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3851a20173f9bda7fba468ebe3ec3d0acf2f643d8559c87f65282da5f226015a. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/KRB461700097.
LIFE (Original Television Soundtrack), Pt. 4
귀가 (Original Soundtrack From "라이프"), Pt. 4
Haechi Pt. 2 (Original Television Soundtrack)
Mother of Mine (Original Television Soundtrack), Pt. 6
Mother of Mine 세상에서 제일 예쁜 내 딸 (Original Television Soundtrack), Pt. 6
Beginning is the First Kiss (Original Television Soundtrack), Pt.2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x988c771eb033f82364c105c7e322830936e3c9f27341c02a95f39037e4852d7a. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/QZEKE1910701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55c223e99f80399882b0b2e8958fca0ac4bf7f7edd7537760ed676eeadf27710. Chain 2 (Bitcoin): anchored in block 960105 (2026-07-29T12:35:17Z), 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/KRA341561577.
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 0xaf74e5885978871344c06603e668425957bb8d73393202b8551a2b2e608bffd4. Chain 2 (Bitcoin): anchored in block 960218 (2026-07-30T06:57:05Z), 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/QZEKE1910703.
HWARANG (Music from the Original TV Series)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x135d5509f478f1e01617bf525b90321d7de930c575599056217af1310e1a318c. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/KRB461700094.