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 0xd143524e12b5b1bbe9154fb6fa58fee3a44097db1b961cf0f05c946255d12e86. 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/75285b7b-b78d-4b1c-9fbc-fe19a9db8579.json and https://artists.proofprofile.net/proofs/artist/75285b7b-b78d-4b1c-9fbc-fe19a9db8579.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 0x6669957fbf21b3cc30b0bf0ce4742b1bd1f9085c224e8caaf64ff710a3efa0c0. Chain 2 (Bitcoin): anchored in block 958357 (2026-07-17T03:33:42Z), 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/KRMIM2022009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9db425d9cddd68246956cfa975f1cf8462ee0855aea4a5558c7ac9cfd9b0bc3. 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/KRA382005904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48992e060b45d1d2d633c69e50f5aa1c9fce6d9edf0b915629821608a5240403. 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/KRA382005905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddf9ac3207eb305a598c960e07cd8ef3ab044e9a220b241b3b11eeebdf828f9a. Chain 2 (Bitcoin): anchored in block 956711 (2026-07-04T22:48:52Z), 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/KRA382005906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf4ef4847c48f13efbd8e89804f2df27b1a38974308314cadc67a999d146288e. Chain 2 (Bitcoin): anchored in block 958491 (2026-07-18T04:29:42Z), 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/KRA382005908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ab53907416e2365128ef4fbf2405856c9b9d919b17e97b7a54e1f4bb67b8169. 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/KRA382005910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe1091084be07d0cce2e17628890e51464b7e80a391d51b0f3a7a062b397b0d1. 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/KRA382005911.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x757df17d32d512b1c0c0e441b2a1521fea6a0de4137818e08658435a911bf1ae. 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/KRA382006603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b9fa256c30407cf5a1d50497f47dfcdc670a0153598e024b16a50d6849bc778. 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/KRA382100287.
Anarchy freestyle (feat. Boi B, SIKBOY, Bruno Champman, Brown tigger, Yonge Jaundice, Hangzoo, walo)
Perfect (Feat. Brown Tigger) (GET SCHOOLED X Gwangil Jo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf152fbfe94e84067828553ec9d863d7b149e361673b53548582637ab8600081a. 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/KRA382162783.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0338579cf5e798614e37102f6546b145c4948522708a7c5ec096fedbb96dc6bb. 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/KRA492200511.
Minamdang (Original Television Soundtrack, Pt. 1)
Webtoon 'Return of the Blossoming Blade' Part. 1 (Original Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fff39b7b05366f5ca9fdd99e3dd963ffe933c728c6ebd97bfee61b38faab5ea. 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/KRMIM2244897.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90b146c51c4a8dafbd4023c30bc8902df01a705fb0ab41a18d7be6c475ee89fe. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T14:09:34Z), 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/KRMIM2305455.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe98d03738f9ffa7715c212f94c41ec3f3023677a7d3c5c98d3cf78176cfd565d. Chain 2 (Bitcoin): anchored in block 959096 (2026-07-22T03:48:36Z), 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/ZZA0P2312260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06c80b3d142bc80ed454728c3ad82df7f77249f51af31882854d7f7139568cd3. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/ZZA0P2312721.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4455250e26de44579f49f11fb4cb655465e7b9ded4e586125c8f4d2bd7d660a9. 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/ZZA0P2402025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48781c06c812619f182b5814ce9449ca95481ae4ca43d77fde1c3fe050ced387. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/ZZA0P2402026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9f23e96b256cf19d9ee49d7ae5a41aa0200069247c7d0975c462e7ea52a71d7. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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/ZZA0P2402028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd33f6b03e43dc1958a4f298b85f4ba2032e28283712750b41dd67402c22c4c2. 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/KRA492101244.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc85f286311e0a5c4d8f31e07ac2780ad57cd2011cc0c7e04a8cae85642888dc8. 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/KRMIM2441880.
Wake Up (Prod. CODE KUNST) - Instrumental
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x491810eed0f3984fc8f568bc3855ce3c7c9a7fc265ab75b742fbb20141f3abba. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/KRA492101392.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x439a875a9f3ec42619b1720eb66ae34b42341e1a0a45b786a368af84443b7b77. Chain 2 (Bitcoin): anchored in block 960250 (2026-07-30T11:13:28Z), 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/KRA382205922.
All Day War (Feat. Brown Tigger, Gwangil Jo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bb90eb4d8f66af40c51f37ac8adfc04813dcc5e10fa717264395b7f7bc1265f. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/KRB472001290.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe27bacb4b5ae54a8c1935e84de0de4f01902513cb9b5e5f602d85f8a11b3c7b8. 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/KRMIM2024197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe27bacb4b5ae54a8c1935e84de0de4f01902513cb9b5e5f602d85f8a11b3c7b8. 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/KRMIM2024197.
Minamdang (Original Television Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2dcd4db2fd1e7f46125614dc634a59fe0621934a2277d2d118339e0a1e0d30b5. 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/KRA252201298.
Garion (Feat. Dynamicduo) (Prod. Primary)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe60eefff18f666b155ff29af79ff4aab1294b42f1687bc3905be78f621f9dbfc. 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/KRA492101361.
Journey (Feat. Ailee, Hangzoo, Gaeko) (Prod. CODE KUNST)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69ad96e7da685fa5801ad56d583eee641ed68e39e5ed635fba32aa43dd6058cd. 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/KRA492101365.
Street Man Fighter Original Vol.4 (Crew Songs)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeba4bca4d6dfb05e9e1aeb76630b6175eec278dde23bc7133a960f94086027c5. 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/KRA492200874.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47f5367073eb9d73e5951f2e2c037c0460da37f92244cf7f06634e26afb9b4ce. 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/KSA012184757.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13f7ed3b471a0133a5debb530d3fe4ac2394a8b60d635e336805f625ca45b766. 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/KSA012182922.