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 0xe7b132a222c26f1759255c46f1a6db060306142fc8140d9ba9ac91d22b51079c. 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/82a217dc-a713-4c4d-ab23-d56a749a0c49.json and https://artists.proofprofile.net/proofs/artist/82a217dc-a713-4c4d-ab23-d56a749a0c49.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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 0x1db7390339d9a750d5f1f556fcb313ca4526f4540f3467e7d465cbd254593899. Chain 2 (Bitcoin): anchored in block 959058 (2026-07-21T21:09:36Z), 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/UK6821401205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90fa6dfc127f541c0514317f42011b8122b45387037dc6835f774580b7d86b06. 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/UK6821401351.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde382f45e78e7b0685510d3f2f25238ac57146f01b33400ff0b01eb74e10a2b7. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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/UK6821401353.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb7c33dbdbf9bf17e91ff492ced9d556bcadd70bc95bd6b43b09fb4abfb29aa6. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/UK6821401745.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1686107ed9f300c42d8001e7d09966ee2703a2926368c6d0c4add275617e1aed. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/UK6821401747.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd19bc0b48a52196990071a8f89d11a3fc7679650faecfd37391cba7cc0f8918b. Chain 2 (Bitcoin): anchored in block 959051 (2026-07-21T19:48:03Z), 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/KRNAR1802632.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x437e747e163eeeb2ef8c9c3a0da655c89e51c3338943bd6ead51554f3d7be54e. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T02:01:41Z), 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/KRNAR1805923.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48a606e7787216cb2bc657710ab204fa4246ac5a76a04aef26808711aef15513. 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/KRMIM1804909.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa436d0dfcaa906bb0c23dc115f518a17d1afb5df463463842662659ada54fe02. Chain 2 (Bitcoin): anchored in block 957647 (2026-07-12T03:57:41Z), 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/KRMIM1804910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x937ee80f08527ceedcbb931324d635c63236e647b8b3dab54a09699dfb0b85c5. 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/KRMIM1804911.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x565ca2355d0d5748f19aadf425f680cf3fc2dd26abd9509a2ce3de0fd24b8fc0. Chain 2 (Bitcoin): anchored in block 959058 (2026-07-21T21:09:36Z), 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/KRMIM1804912.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cdb085eb2b809a522f8b409c8e27f114607d2ba70e79e740a65b4a4279d5913. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/KRMIM1804916.
Voice2 보이스2 (Original Television Soundtrack), Pt. 3
Voice2 (Original Television Soundtrack), Pt. 3
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe11f4b9ddf4bb2c6793de7a6c322ebeb75ba2377f2a17af84f9daa7bd8a0f37a. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/KRMIM1911805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x274a109a211f929249ed24e94fe4874790c8a8ce1060f3209ea754b530f91eaf. Chain 2 (Bitcoin): anchored in block 959008 (2026-07-21T13:14:05Z), 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/KRMIM2026259.
The Witch's Diner (Original Television Soundtrack) Pt.3
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2eb6ff0127284f31242790d7909fa0886f95f5aa28398418ef49cb8ed5f7e0e1. Chain 2 (Bitcoin): anchored in block 959080 (2026-07-22T00:07:05Z), 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/KRMIM2130565.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0025a10c8a83a44225dce4a52a202767fc725204b10756e8e787f98c15cc0ff8. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/KRMM02326197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4eaee98760a341e6335d5b1bb83419f37f4cbb1d47c697bc91acdb01de2a6546. 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/KRMIM2378265.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd15a995d497824d1e4694737b41ee066c4768e1e9984ed8baf88260656822aac. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/KRMM02326199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f5111083fa2382f72a18ed380d754adc2b9a0bec42e561e8f144d5cf0e4da69. Chain 2 (Bitcoin): anchored in block 958911 (2026-07-20T16:46:31Z), 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/KRMM02326200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66b5d1943da5492cb0bb9df1f0c5ef4f058fa5e1db305fbae0b2fdfa7aab0fa4. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/KRMM02326202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47f1eded88b6d039660b3338dd90b1d498643f65091ef12962fd9d9a97a8ef66. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/KRMIM2347492.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90d4cc41bca18291370ce19f76bfaf80ca6b246c6cfe3f4227705445e930d944. 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/KRMM02326207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12f926add3d16d9ad81b09c04edfa4454a129eba596cad485f69dd859b1b880c. Chain 2 (Bitcoin): anchored in block 959137 (2026-07-22T14:03:35Z), 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/KRNAR2319131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58e1f87cbbbf347147e87a7b93b8522bd180badcd9dac667983cf9a499c61c7b. Chain 2 (Bitcoin): anchored in block 957644 (2026-07-12T03:18:52Z), 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/KRMIM2476476.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a7481cccb7add409f5b7e4f3321eebfb077cd8ee89022d3bd63509796b8d131. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/KRMIM2548480.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49203a2fb539a2bce747007b6d7ad58f871038f29235a1cec2351e852df1dbbe. Chain 2 (Bitcoin): anchored in block 958779 (2026-07-19T21:08:39Z), 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/KRMIM2548481.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1c83081dcfca5dd08abcf512985188757f72122668884c1bb7abbb9cbc4d83b. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/KRMIM2548482.
4 the Youth (feat. OLNL, YESEO, Ku One Chan, Cherry Coke & Minje)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb853b5509a8aa2ec5295178dedbd90c55812b519da6ff83ff3f9181965609840. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/KRC391800022.