Jang Ho-geun (, born 11 September 1977), known professionally as Jang Minho (), is a South Korean singer. He competed in the TV Chosun audition show Mr. Trot, placing in the top sixth. He is also a mo
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 0xd41d600963d0cecec36d587d9c25f6c4d7c920d4bb94bd9dbf97257ee502df2f. 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/32fc0726-7a14-4e08-8a9f-6f034e26556a.json and https://artists.proofprofile.net/proofs/artist/32fc0726-7a14-4e08-8a9f-6f034e26556a.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 0xb1c82e156984774c07db38cf2d2769d37c929134fdb5ef623a2b5ebea9216c1b. 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/KRA382050035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf147a7332fe404f7347e9e99722756bc7c7594d1e69b8ed9dd458c8cecba9c5. 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/KRA382050036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f66548d1744adcdbea3a7e794cc2e72bd79cb069baa63cd5442f1b214ab87b0. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/KRA382050037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcf60febaa1b0abe1e478df97f14c710355e001d6edac7e3ab1656d06c11f3b0. 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/KRA382050038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x262a575e1953b243fd30a4feaaee22dc8b18a749a6789c3b05012974226005ca. 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/KRA382001850.
Kkondae Intern (Original Television Soundtrack), Pt. 5
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe13648a1ffaf83df037df775d4ed90d202eb598ae25b0fb9e49ac639e8b15da5. Chain 2 (Bitcoin): anchored in block 958538 (2026-07-18T10:30:13Z), 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/KRA382160011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4636d1c28595cbce195313900518df3db02c141128b6fbfd9b91257573f7a25e. 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/KRA382208242.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8a986df97b3c20d806b30dbaa205a6e595801447b96446cbfc328c7e1aedab3. 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/KRA382406563.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x663163562779f97cf8647514834521bb7afcacf25879f1436116f52834ec1b8c. 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/KRA382406565.
Bon Appetit Your Majesty (Original Television Soundtrack), Pt. 7
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55104d53a8c5ee594c16997d86f97bca52052df2f01b63f362a29cdceea49631. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T14:38:07Z), 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/KRA252501662.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe93de16abca56dd9253a6ad330ae299a86de28635fe2f10162277ee4dd4179a7. Chain 2 (Bitcoin): anchored in block 957788 (2026-07-13T02:37:37Z), 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/KRA382506022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e50ff1484c1c028a8177f306c4b409d335040bce46abb1bc15d3eea48348ca0. Chain 2 (Bitcoin): anchored in block 960111 (2026-07-29T13:21:01Z), 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/KRA382000026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58ed456ada5f31c5841304ccbb3b7e9d1e6ec0dd941fda7543d9790487b021a1. 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/KRA382003125.
Music source of Mr. Trot Death match Part2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82011b800f4223df73b8122ee345f2bd47fb9d8cca0b62bfd3794ecb42d0d759. 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/KRA382000227.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e79451a1ce6ca24537c40871a9528d4c485957fb24e4b502aef2cc53370ff8b. Chain 2 (Bitcoin): anchored in block 960389 (2026-07-31T10:20:10Z), 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/KRA382006989.