Kim Jung-woo (; born February 19, 1998), known mononymously as Jungwoo, is a South Korean singer. He is a member of the SM Entertainment South Korean boy group NCT and its sub-units NCT 127 and NCT Do
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 0x68062ba82dc97890e9a7de1d13d327ff209c14c37053cf05377c9de2427f5e07. 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/39e78a9b-c647-4cec-8fd7-e2ffaaedc2b9.json and https://artists.proofprofile.net/proofs/artist/39e78a9b-c647-4cec-8fd7-e2ffaaedc2b9.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82331be14faba9823377034f0802861b19ab8e247b9da9bf8ae2646147592f50. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/KRMIM1915248.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x360253e2de894b9f5ff423b5fefdf938d521c0b847733a00be5186bb56bed91e. Chain 2 (Bitcoin): anchored in block 958611 (2026-07-18T21:24:44Z), 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/KRMIM1915249.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ba72a4f7c77356bbd5496e4fff81ab65c444fc4ef44520279f1995298e142a1. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/KRMIM1915250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb9000b54dc09784f5aa104159f02867ea039af7a211373e6714e965a147ead5. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/KRMIM1915251.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbc2f7d395c9d7c2f84da006a2c480fe6ed8a29ad3e39c9812d078dfc89f2eef. 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/KRMIM1915252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05c55d1d6a8b6ddc1f5b5b9f07b5888fc478d9148a698d74023be0b773a1c791. 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/KRMIM1915254.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a705bc23288746eb9df31d523f5240be0e605e3e4a1eb875ae155a48a3e3423. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T22:54:31Z), 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/KRMIM1915255.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf0d6a91dbe43d82ea8168f51d23857f48a069955c7fc85be3a49473e1a0ef84. 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/KRMIM1915256.
세월호 참사 7주기 기억 프로젝트 l 4.16재단, 닷페이스 - 먼지 같은 기록을 덮고 (세월호 닷페이스 다큐)(Original Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6111601147a3017d17bd8ccb93369b3280f3d9d89ea6fc7ef318a6db6c3c975d. 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/QZF452067378.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bfac8c949206f25668ce9c27d6e915e36fbcd51e3f9c99702a71e2823805c1b. 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/KSA012136893.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d945c21838e2190ba3507b0b30c8864b1e6a11b1c100a442519e1e27456ace0. 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/KRMIM2241325.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb143754911d9f704b2fa5b090945b9e273bc4ea60fc38f94cbbca3419a5dcac3. Chain 2 (Bitcoin): anchored in block 958504 (2026-07-18T05:41:32Z), 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/KRMIM2331054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd973665a08537fe9a121f27a4a824f1a3fc888e8d7127ba33f49bf4e5610b676. 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/KRMIM2331055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x253ec1bc47a9328e160b410cb9d4ccce6562a78295d8dee91189c858ccdc32ac. Chain 2 (Bitcoin): anchored in block 958126 (2026-07-15T11:07:30Z), 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/KSA012248642.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf25861685ba0b78f5aacb0e5536eaf886259a1366cb3304c5d0804e296fc5569. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-15T23:25:50Z), 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/KRNAR2353183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57974cc4de197f45be21d92634284693da6fe76eeeb439cddbc122c5069b2a44. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/KRNAR2353188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4043bb46f97a47cd426618e51e8d88b102f9b4e7c035b63e7cf835b62572c13. 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/KRNAR2353189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f8f227d3689bfc4174210419e3d71b6ead3d0bc14ea68448eced8e616a10910. Chain 2 (Bitcoin): anchored in block 958169 (2026-07-15T17:34:54Z), 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/KRNAR2353191.