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 0x6fffb802190695adba3d5cad1f5b0f8d9ff2b0f216bfa69ecb4a5baef83058d9. 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/a8ab8e59-4970-48f5-a822-72e1a6951fc7.json and https://artists.proofprofile.net/proofs/artist/a8ab8e59-4970-48f5-a822-72e1a6951fc7.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 0xfff61138f0dbf3195a0e27bc10f37e29f293429d8a9ec16042bec838f1f4862f. Chain 2 (Bitcoin): anchored in block 958816 (2026-07-20T03:51:05Z), 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/KRMIM1900429.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x119162958521636f26374e21f72375276d96385654cd29603b28689fd6765d84. Chain 2 (Bitcoin): anchored in block 957770 (2026-07-12T23:17:00Z), 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/KRMIM1900430.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca89c876fcf571ca35869f04f94ea1825a714d6908b90f045e3a74a3a6ec28ae. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T15:48:23Z), 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/KRMIM1900433.
SCENERIES IN LOVE (Original Television Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2dd699d808fa6f43fc3988aa115d8466bc57d84dd350718670942f42828dfba7. 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/KRMIM1900550.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbc765a7e5a0b000af624b10db049adf1cfc356a2ceed9c0e78bf67b59411b60. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/KRMIM1900551.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a7cae5570ab8369b461067ea8edd2e3ee9000add4faf2366687fa1b486e1d8b. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/KRMIM1900557.
Romance Collection : 10th Anniversary (한국진출10년기념음반)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x818d37cad6d1a9c1e0837f9b76ec9ee8192c33b427513bc0363f56d5588225d8. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/KRA461400001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb96ad7287e99a769f66da226e874f2eef3c84be3aea409c92dcc4c6b0c218f71. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/KRA461400002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfaba2904554a250d6bd3f2e4d0af5a1bf806168d178abc2f9d9fc28b504059cd. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/KRA461400003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x368c44c56c2560be65019ec395ca2c14676d01a01f4d1a03a1f47fc19bb9029b. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/KRA461400007.
lnvitation To Dress Circle [Graceful Waltz]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcfb0843a320d33fb09e24a74bf74ce1ef224b1126883822131ae383222d99b8. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T08:41:42Z), 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/KRA461400009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37f65117dd30a7fd80eb0f7638fed4380a523b113c20d1b619e2ec4439743f30. Chain 2 (Bitcoin): anchored in block 960285 (2026-07-30T17:26:40Z), 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/KRA461400010.
Arirang (Arr. Yuhki Kuramoto for Viola and Piano)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f3b24ca6b556c54ef3b38cb885e87c89f8f640590465dda6fbf45af4fca2e03. Chain 2 (Bitcoin): anchored in block 960166 (2026-07-29T23:39:29Z), 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/KRA461400011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa310f3353e9ea7cb5eefd70f27aeee02532a02d565d64e1b9056fb1821a5bf8a. 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/KRA461600052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0a11856cccb54e07ce13799c901c1e90a2e88ddfa035514ac1833e057c7dbd2. 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/KRMIM1900707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x296df799be90674aca7bfc0870be6d8f377fb0e203faab1724a1d5973f10a2de. 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/KRMIM1900695.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71297bef578554e01dc25bf29a65f9b64799cc9c12c9db4d115aaa5994fca8a2. Chain 2 (Bitcoin): anchored in block 958644 (2026-07-19T02:21:25Z), 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/KRMIM1900697.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x517a84b48649e5cd3d917c400f49466a74e59c71d97bb364de84e6c0874314c3. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/KRMIM1900698.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39970373efd4cd4f5bf98a1714d6c5f9535c6330b866259858199dc20d636e77. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/KRMIM1900699.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32f170395a3e372c8b0dffb61af4b53ff59c7c4433272fd98a1c6b937c035ec1. 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/KRMIM1900700.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfc2954e2dc15eaa9fd869d5de2402e3102ab280322d5b244ca158e78a6f7927. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/KRA461900017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3266dd0936ceb65857ae75a8b2920420986d412ce3715f47369dc6861ac31528. Chain 2 (Bitcoin): anchored in block 960167 (2026-07-29T23:42:34Z), 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/KRA461900018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a198884d10029c4c0a54fe1186880b8a750158bf3e8ecb15fa1d46de1c8bb75. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/KRA461900019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x582a26c822d75afb393d3b7e2eade3dab17352be4e7bd24a7b31c13e3e4e6edf. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/KRA461900020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c61d18252294d40fcb2ec149e95e49943d6ed1815ba3d20fbc02c7c453641a7. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/KRA461900021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ed7b143b555449a5e27c9a6c9d495c7180fe154e70dca12e1b83b45a0d2d0bf. 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/KRA461900022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x056d90dbf257dcdcd559bdc87e3c0f6e23bea92a24f9eed72a32692e0d0de0f9. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/KRA461900023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0510bf2fc9b9f96958156bd952543f6bace5972bdd7d947e1c531e96cb478f35. 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/KRA461900024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d64f75e65ac03315b8cc937093f6bf859199c6e2a8d8d1c34191b6f7c867652. Chain 2 (Bitcoin): anchored in block 960222 (2026-07-30T07:48:45Z), 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/KRA461900025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bd789e18bf894c143e26305c946924b96fe38d4a63171b90e880939bf8a54ce. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/KRA461900026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x161b3c3fef81047c400b5700383a3af8dd8d714a0bed30316775a5f0b6ff357f. Chain 2 (Bitcoin): anchored in block 959132 (2026-07-22T13:20:46Z), 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/KRA461900027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04ab88cd0d3d3699ded58de692e58cfc4234a3d7b4fbc5386caffc1bfaf66a2b. 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/KRA461900028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x544d94ad7f49e48362ea502262d77539d53df1898a943d018ea969520fa02cc7. 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/KRMIM1923847.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe24f5891508863bbae12b925374364d2efc5fd2ab9b59252ab9a1a5db3ef82dc. 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/ZZA0P2011001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f734d43b6bdfe63303609392ffb3324d91e4a044606af9496b08fea1926a72e. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), 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/ZZA0P2308563.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1eb3522b1739b86028b2d709fa725daef6c5165a8127bb8ca913cc9bdcadbc71. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/ZZA0P2308566.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3b9a68dd21f73424e059723793af2e452c8cccc518ac8326c25749b4b6827a4. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/ZZA0P2308570.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x361decbfb178a7c1402dee184764185de14c7fec3e9c84a53bc815a357aa3669. 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/ZZA0P2308571.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99dfb17c1db2a52ab11d3919cc6e1e9527cee991367f13b7aac87eed0d02b098. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/ZZA0P2308574.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6423f586e3ef5991f62f5311c15da3fe6301dbea953bfec0b7881190f4e8d02e. Chain 2 (Bitcoin): anchored in block 959076 (2026-07-21T23:41:40Z), 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/ZZA0P2412362.