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 0x491dee11fe751ef3802b45c8539b6288a97c16149d38a2422c03cc57c52139e9. 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/08a8a3fe-cd84-4cf2-8d1e-88e11817c16b.json and https://artists.proofprofile.net/proofs/artist/08a8a3fe-cd84-4cf2-8d1e-88e11817c16b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
The spring Day Of My Life, Pt. 3 (Original Television Soundtrack)
The Spring Day Of My Life OST Part.3 (Soundtrack)
Live Up To Your Name, Dr. Heo (Original Television Soundtrack), Pt. 4
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 0x3c7812b3bf4536e599c8be12ad1a12b62082854ea80f048f2d11e075ab8d497f. Chain 2 (Bitcoin): anchored in block 958631 (2026-07-19T00:50:09Z), 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/KRC321700041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9eab02e21cabae0290a63b238f13be3d1abb58471c48260f69e5cef00c3a7ac. 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/KRA381801089.
Good to Die (Original Television Soundtrack), Pt. 6
Good to Die 죽어도 좋아 (Original Television Soundtrack), Pt. 6
Top Star U-Back, Pt. 3 (Original Television Soundtrack)
Top Star U-Back (Original Television Soundtrack), Pt. 3
The Wind Blows (Original Television Soundtrack) Pt.2
The Wind Blows, Pt. 2 (Original Television Soundtrack)
The Wind Blows (Original Television Soundtrack, Pt. 2)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1eeab3941f7db8d42eabb04fd5f3730503352cf1a6b17c50b8937c1c64851a85. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T18:04:31Z), 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/KRA381903452.
Melting Me Softly (Original Television Soundtrack), Pt. 4
The Tale Of Nokdu 조선로코 - 녹두전 (Original Television Soundtrack), Pt. 9
The Tale Of Nokdu (Original Television Soundtrack), Pt. 9
Hi Bye, Mama! (Original Television Soundtrack), Pt. 5
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5a26ca000dde989d1dcbe0b46c113db15e981976672ed49c7d6a29036587382. 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/KRA492000325.
Hi Bye Mama (Original Television Soundtrack), Pt. 5
When it comes to love (Feat. Mellow Kitchen)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4b213068aa597b3ea32ecf217f592bd270fc939a4d21fc499e3a87242ce624f. Chain 2 (Bitcoin): anchored in block 958864 (2026-07-20T10:24:04Z), 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/KRA382102801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb34417b4da29bf40ba973e7260e55d690edbe3759734a7112752ae0679da694. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/KRA252101339.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x368f3688421b33f4a396bcc2e5c7bbd249215f67488365f640a23301e4d9a742. Chain 2 (Bitcoin): anchored in block 958329 (2026-07-17T00:19:12Z), 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/KRA382159778.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x913146c95adfb971cebd30bbb8e4a1c43c9940459800629667a78f9e70f3347f. Chain 2 (Bitcoin): anchored in block 958263 (2026-07-16T08:19:47Z), 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/KRA252200189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcab6234b2c2aa5a12cba3d2c128743d510af6d3741c30a45e6aad4b28368a7b4. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T05:28:05Z), 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/KRA252201627.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4f2a08d61ae0372fe355f153c47556a7463db2b046729eaa9d7c25263dd121b. Chain 2 (Bitcoin): anchored in block 959001 (2026-07-21T13:58:42Z), 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/KRA252300791.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc862093ccbd26b17c6db1718a3ad28d15d2e6ba2d9adb81441cfae007ec4ab0. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/KRA252300792.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb5d2a48ce9d77582bb425ef3f1d34c5d65f269e1c9af343d2f6f2b14ce2274e. 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/KRA382301966.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x086ed54b67a739dfffb9e2012b557f8a4a46d98a786dbbf13f1660c8b392e6ed. 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/KRA382403099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cbefb6e126ea776c542c69bbb55cff7c3a0bc6dfd2b26753619b0b6b867d864. 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/KRA252500890.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0814ba2b69bc916956df0d6b4eab297116f81998a2dc90fb8912269e6565d569. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T19:56:12Z), 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/KRA252500891.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad502ef907d7a2448e10788bcd871ebbfb6b82419d026181620beaaebb75810a. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/KRA252500892.
Our Love (with Kim Chang Woon) - 2024 "And"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45563184d2642485c969a6b7befea3b9407d89b73d45fb0ad38566725b1c6363. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/KRA252500893.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6370d9dd3dc4e2b45bca582cec132ffbf48b6b2d163d9f07116710efc74838ac. Chain 2 (Bitcoin): anchored in block 958980 (2026-07-21T07:04:12Z), 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/KRA252500894.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42fe5e7b79e65cd3cd6639a80832d67bc7711f53d442b2ac2f59d1d787a1d301. Chain 2 (Bitcoin): anchored in block 958779 (2026-07-19T23:43:55Z), 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/KRA252500895.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc84a355284377594aa9086e5b14921b625c692a6dec8b9bf1900bd52201f18a4. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/KRA252500896.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x534679baecabd318ddebee5540cf4f332bb287960194a965401d4184002a0afe. Chain 2 (Bitcoin): anchored in block 959087 (2026-07-22T04:16:40Z), 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/KRA252500897.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a2917c0f100212506d89e106857431c51ac11ec800dca284d58fc6b57905a7e. 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/KRA252500898.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x128c22436ae65f207f262d22e6f584db8542680a9cdd9aacf9e635f1f71a8c0f. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T20:05:19Z), 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/KRA252500899.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x628ff9e26cbd6790a51ae5cd4784e1c96105a9fd6cda164508c8e0b5fc1bea7f. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/KRA252500900.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf8eedabd5fe8ead5a8eccabd25990aa22208359f160c95005490d8bad28985b. 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/KRA301700336.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b1075d1ea44216f29ce22f3523528e10fac99c7a3103b7bbe6855882b5b673c. 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/KRA301700337.
a particular thing (feat. Parc jae jung)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7705eb8dd8dcd502a0d0b0977a8da407a61474b3518b1d9604173703142c785. 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/KRMIM2005872.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c4e0fe9704eb3bb951e0a30a226aef48aeeb1b5a13fd7c094f7ae7f83f69215. 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/KRA252102344.