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 0xa10e954036aebe0a5a916e6a9adbb0607df25822dad3824af891547d7eda87f5. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/792bdede-3388-4a90-b9e8-1ad38cf958e6.json and https://artists.proofprofile.net/proofs/artist/792bdede-3388-4a90-b9e8-1ad38cf958e6.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
청담동 앨리스 (Original Television Soundtrack) Pt. 1
I Can Hear Your Voice Pt. 1 (Original Television Soundtrack)
Pinocchio (Original Television Soundtrack), Pt. 3
Ex-Girlfriend Club (Original Television Soundtrack), Pt. 4
The Time We Were Not In Love Pt. 4 (Original Television Soundtrack)
The Time We Were Not In Love Pt. 6 (Original Television Soundtrack)
욱씨남정기 (Original Television Soundtrack) Part. 1
욱씨남정기 (Original Television Soundtrack) Pt. 1
My Horrible Boss (Original Television Soundtrack), Pt.1
Strong Woman Do Bong Soon, Pt. 7 (Original Soundtrack)
Couple on the Backtrack (Original Television Soundtrack), Pt. 1
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 0x3daa98dc5c0d8f5699add3e555e4ef1d7700ca4657c563be6a7a48781f6ae5f4. Chain 2 (Bitcoin): anchored in block 957899 (2026-07-13T19:36:39Z), 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/KRNAR1707398.
Couple on the Backtrack 고백부부 (Original Television Soundtrack), Pt. 1
Couple on the Backtrack (Original Television Soundtrack), Pt. 7
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4754185f86abd82dd4a704f2694abb77cd35d7f05174048d9ae51b6055fa04d2. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/KRNAR1709261.
Couple on the Backtrack 고백부부 (Original Television Soundtrack), Pt. 7
Special Labor Inspector, Mr. Jo (Original Television Soundtrack), Pt. 2
18 again, Pt. 9 (Original Television Soundtrack)
18 again Pt.9 (Original Television Soundtrack)
Once Upon a Small Town (Original Television Soundtrack), Pt.5
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8920c580b71a293cf2af87a5b3653ec2fc90e464045a1101d1840a81429d27d8. Chain 2 (Bitcoin): anchored in block 956397 (2026-07-17T02:33:04Z), 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/KRNAR2203549.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc63d8494db1ad7c1577cba948e5f52c3b096461f0527e6bc1def7ee0981b882b. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/KRNAR2352150.
My Sweet Mobster (Original Television Soundtrack), Pt.1