Lim Cheol (; born November 20, 1991), better known by his stage name DinDin, is a South Korean rapper, singer, actor, comedian, producer, television personality and radio personality. He made his debu
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeed49e1ad40257398f49ba37eccfe1cc9f748f97a5df0f8b63e47fe6aa5ed7a2. 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/386781c5-c858-4b8c-a465-607e8d3a4310.json and https://artists.proofprofile.net/proofs/artist/386781c5-c858-4b8c-a465-607e8d3a4310.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
LAST (Original Television Soundtrack), Pt. 5
Beautiful Gong Shim Pt. 6 (Original Television Soundtrack)
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x769b0362678dd98ecbd276a568c52524f75f80515f3e49d1d57a92f42dcfe0ba. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/KRA382322983.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4752e5e65de7c3ae91f5eb69589bca0137d92dfc874bd50b8c39171a380487fc. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T19:51:39Z), 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/KRA381601387.
Good Manager (Original Television Soundtrack) Pt. 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63c3cfe684dc0f5881915e7f970f7fa90607d8ac07630790b42b1d7404303450. Chain 2 (Bitcoin): anchored in block 958369 (2026-07-17T08:01:05Z), 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/KRA381700201.
김과장 (Original Television Soundtrack) Part. 1
Sugar Man2, Pt. 16 - Not You Your Sister
Insomnia (Feat. Lee Hong Gi of FTISLAND)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2dd075484fb5861e3ed671e438da6274f535e9248bcdde0e540d55de0f95599b. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/KRA381801163.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48297b18f172b57b727aedd3f2dc8135cd17c3f90e169c4f9ba4ec1a86fdeffe. 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/KRA381802335.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b4da0b689542e898dd61a3f4cf588f74e574baccdd6225b4c72193d6e24c0fc. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/KRA381904893.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c3d059a2a56e7cfc9b8da09b49fcc1c38601ab6169f6713d86ef8364162870f. 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/KRA381904896.
Fallin' Down (Feat. Lee Wonseok Of Daybreak)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf9a26df32675e4fd27e9b8e7dfb8bfa665ec3bf48b3898bb9acea738610695d. 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/KRA381904899.
HANNAM GANG (Feat. BANG YONGGUK, SLEEPY)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbc9dfcd27866170ed7b5c2465aac66ec00f82cd46823ab07698e5e8cd7d3db1. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T17:40:45Z), 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/KRA381904903.
Studio lululala_do do do do (Whee In of MAMAMOO) (Prod.Giriboy)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x213bea3b50520e5bd5c005e67ac8d8d935708415358bdff932110a790f8ced0b. Chain 2 (Bitcoin): anchored in block 958696 (2026-07-19T07:45:31Z), 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/KRA382003276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x870b5d5f3490601efd1a8c68b74c164f10cbe11e9f83de890b53c670c6f345a9. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/KRA382006482.
Mr. Queen (Original Television Soundtrack), Pt. 5
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd61034dd78d8bbf62da4cc7a95370ff7afedccd9151fb8630ebebb7c82250e66. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/KRMIM2110784.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd61034dd78d8bbf62da4cc7a95370ff7afedccd9151fb8630ebebb7c82250e66. Chain 2 (Bitcoin): anchored in block 958891 (2026-07-20T15:56:03Z), 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/KRMIM2110784.
[Vol.105] You Hee yul's Sketchbook : 67th Voice 'Sketchbook X DINDIN'
Dali and Cocky Prince (Original Television Soundtrack) Pt.2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed213727e6130a3834bace3f7b53298dfe762a5d2fefddfbd5df44a72ab2fa33. 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/KRMIM2140278.
I’m not myself when I’m around you (Feat. 10cm)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56735d817542431cbd9a476e7a9011ec26b3cb570aa679439824def24cd4c9b5. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/KRMIM2157683.
I should not have loved you (Feat. Min Kyunghoon)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8332f03a3ee30be3e6f6d9eed3c973f5072e7c62c55cea0424529f39acb18e51. 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/KRMIM2126986.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd61034dd78d8bbf62da4cc7a95370ff7afedccd9151fb8630ebebb7c82250e66. 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/KRMIM2110784.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc9093e9462d7a7cfa7d8ccfdb9648b5fe885ada9c07db83869f8845b8c5ea17. 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/KRMIM2157687.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56735d817542431cbd9a476e7a9011ec26b3cb570aa679439824def24cd4c9b5. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/KRMIM2157683.
I should not have loved you (Feat. Min Kyung Hoon)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8332f03a3ee30be3e6f6d9eed3c973f5072e7c62c55cea0424529f39acb18e51. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/KRMIM2126986.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc9093e9462d7a7cfa7d8ccfdb9648b5fe885ada9c07db83869f8845b8c5ea17. 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/KRMIM2157687.
Fire (Feat. Keem Hyo-Eun, The Quiett, Don Mills)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec7237cffa0b6b47db382311aeba43c15307b3433dfe3dde3d5125d2169b06ad. 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/KRMIM2212614.
Like that day it rained (Feat. Yoon Myoung)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe01ae6b0b162df52844a7867e5f52f49473166cfb0b3103c52744c5456962ec7. 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/KRMIM2246128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe01ae6b0b162df52844a7867e5f52f49473166cfb0b3103c52744c5456962ec7. 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/KRMIM2246128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec8cd6c07534b535bda7ae8282eaf62b50d468a7d54fe65fc5dc077980669996. 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/QZNCB2185902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0481ddc2295a61bd8314cefc110d45e291695e3a926247a179937963b21f437b. 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/KRMIM2334219.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0481ddc2295a61bd8314cefc110d45e291695e3a926247a179937963b21f437b. 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/KRMIM2334219.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2e27f8114f3b442cc86199f16eddd86825b5d09facdd4f3678f07985f4b9cc3. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/KRMIM2362247.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09dd573699b5ca144bb60a38c21acb21de1b4f316ddaad6fbe6e63fb819f8d27. 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/KRNAR2323622.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac735271e0683b7b573d26b082296a6854c12e2ef1e2d58b9320579202dab5d1. Chain 2 (Bitcoin): anchored in block 958134 (2026-07-15T11:34:44Z), 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/KRNAR2346169.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc03b69c71ed7028a26996972b002fc5fae38526f4ce25a49ed3eb1b16d0f36da. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T16:40:52Z), 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/KRNAR2356164.
Things I didn't know (when in love with you) (Feat. DinDin)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e1d530de1753b5bf2fa7dd0f60b2b93a8e6aaa66d0f3a0855a0f9b8bfc2617f. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/KRB472001807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02375d73a7fb6d77bd9730e37429e771ee991612166c6a5a38af5350e60a823c. 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/KRA491900724.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca4329a3f2521097564a16ccb0218b706a7c02b46f79f830aebd065132d76828. 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/NLS242100117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc32c8a124e4773df719962df34bc0efcbc99fbb607dc3f70f2c1e72d56a50a8b. 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/KRA381700583.
PotatoStar 2013QR3 (feat.Linzy of FIESTAR)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fbc49d01a4796ef6ad0fe13efa4aa9367508f9495ef652a0e535e47c43b0a98. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/KRA381205190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7762dd2da0154e6b6c2c02b35d5d4351d64f52178773f9a733dd3053c7ac3784. Chain 2 (Bitcoin): anchored in block 960099 (2026-07-29T11:30:20Z), 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/KRA491900658.
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