Lee Jun-yeong (; born March 24, 1987), better known by his stage name, Nucksal (), is a South Korean rapper. He debuted in 2009 as a member of the hip hop duo Future Heaven, and became one of the most
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 0x5d60955013f162ef87510ef7c10a92c6ba7478f381125c23234e9dff8cb57286. 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/fd1b8349-55c5-41ee-b2b2-fa0cc6805906.json and https://artists.proofprofile.net/proofs/artist/fd1b8349-55c5-41ee-b2b2-fa0cc6805906.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 0x9cee352a728eef94663785b69c0d08eca4c91b8eb0f1cd5ad6723817ecdb0c46. Chain 2 (Bitcoin): anchored in block 957863 (2026-07-13T14:41:15Z), 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/KRB471600184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b1ae9d27746d37c4ded2c6a5a058c14aa47ee1d157fae0a9f2f76783a165c80. Chain 2 (Bitcoin): anchored in block 958680 (2026-07-19T06:04:14Z), 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/KRB471600185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ef11cbc4df514eefc8d73ccb0151463b392b4b5c1ac3b68bf9f8d24280ff8f6. 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/KRB471600189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42c6c4a68c6d38a1fa013ecfc1ea81c8100d8f6fcae7760b5c06eb7c880cf794. Chain 2 (Bitcoin): anchored in block 958975 (2026-07-21T06:12:52Z), 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/KRB471600194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa551fb368fdee784b224b95f21b94c006a4452aaaaec62625a3a1185f1db13cc. Chain 2 (Bitcoin): anchored in block 958395 (2026-07-17T10:10:33Z), 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/KRE501800023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa551fb368fdee784b224b95f21b94c006a4452aaaaec62625a3a1185f1db13cc. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T00:01:46Z), 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/KRE501800023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf04730cdb61acf7ec01dd0460e57511327926c174200d8e4af9c881d2b8236b6. 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/KRE502000076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a625e3e7cdadcc352c0225656068b6e68b128b3f78ca98469f72bbc524b984f. 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/KRE502000075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd91f847e1b2d6246a6c17aecd1c29020977d67ae45a0470bc3c9a14c4108050a. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/KRE502000077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e724899d68dbd0d951eb368c60cf1744120ec12e538f479bc4f810f49ac6bf3. 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/KRE502000078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18b41ff74ef6a8cb3cbd64712231d59e8f7e7a7538778323e430bc0450f8a86d. 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/KRE502000081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5a9b3448196932a8ee9701caf7298f381d2df904081d2ab8605b98c5a7c7765. 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/KRE502000082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ac57b651b00a1743ad72b45282c06f14dee63e591ca3159500583227f0ff378. 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/KRE502000084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0daea5eb1affdaa135f7a95e82c160a84c02e6a02d9788e8132986c36cb499e. 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/KRE502000085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27a9e5b2ce9d45d0484146d893e355f9ef61a627454eeb0c79f140b6ebd4640b. 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/KRE502000086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9918ca7e760424235a6e11fc9bb309fa25770f7d69687a5f18013affb1b9a5f. 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/KRE502200004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9918ca7e760424235a6e11fc9bb309fa25770f7d69687a5f18013affb1b9a5f. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/KRE502200004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1192307a74843f0fc9df06614bc7c1b9b1baba7a7da44d38a642b84c734aef6. Chain 2 (Bitcoin): anchored in block 958988 (2026-07-21T09:08:06Z), 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/KRE502200005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf6c01015c042a5932098270f218a4f0268b5e615b8ac92563df4d46d0abec7f. 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/KRE502200006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61937321966b771bff7cb1fb867ffc0a1dd7b6ede0c270fe137e6ba0e2564e52. 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/KRE502200008.
Parole Examiner Lee, Pt. 2 (Original Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47b5e8f36505e95596a5b5d26cf2461b611cb1d20be2dd54028aa960ba5cbc86. 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/KRB472403239.
In Self-defense (Feat. Woo, Nucksal, CHANGMO)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8be392bf928773499610fa62d4e06b57ab1252ac137bb73c2442486a1e627ba. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/KRA382007095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ddfc478f82f0906b90f017ec08bc09c86e6cc4919304200365a9abb0c6d701a. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/KSA002101663.
WE REMIX (Feat. Paloalto, Nucksal, CRUCiAL STAR, Khundi Panda, SUPERBEE, Juvie Train, KAMBO, FANA, QM)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfefc906d2ba9cc87b76b792926193509a3025775a5af42666cd0c4f51a1651c. 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/KRMIM2301625.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12cd82ae7a444e8f5d025cf35ad12841dfead905a93ec46e7e439307c9e69a36. 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/KRNAR1703961.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x411a2f5bceddf8a0547ae0621489cc12b85f8b3ec12b6d8348640f9be2f1c9e8. 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/KRC712000023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24e2b40d6c0bd48c80450795ed6c18aee339f7f82cb4fffb921effba0d0255bf. 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/KRA401700026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91f899f1a6fb3984e3728cf63d4b1fa10e086bf148ca3be680e739a566b71b98. 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/KRA341417470.
Visty (Feat. Wutan, Hwaji, Deepflow, Don Mills, Rohann, QM, Big One, Nucksal, Odee)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x398bf854b7d98797ad54e2954b856d7eb2d002d0066f7c58de0a9ced4177804f. 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/KRMIM2444262.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45a92946fa11664e6d853a656a0492b2b3909bc4730e7d199d441cbdd2f47c99. 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/KRC711800054.