Huh Gak (; born 15 November 1984) is a South Korean singer. He rose to fame after winning the 2010 Mnet talent competition series Superstar K 2, during which he became known as "the Korean Paul Potts"
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 0x3308285fd91ab57e08f12d2e35eef94f81573a37de3abdf93ba66b3d86d06bb4. 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/efae268e-2882-4061-afcb-e55da938d800.json and https://artists.proofprofile.net/proofs/artist/efae268e-2882-4061-afcb-e55da938d800.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 0xc01b2e6d59fcf7347100e815a22ea976a59fd5d30819119960887de46fe3083d. Chain 2 (Bitcoin): anchored in block 959001 (2026-07-21T11:41:42Z), 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/KRB131100006.
Big - One Person (Original Television Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcff81b28dbcdb520f6049b5cfdaaef1ff4e6fcb372a0d59c641ad61fcbd24d78. 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/KRB131200024.
I Know We'll Break Up (Duet With Jeong Eun Ji)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48ac3dabfc767179f082d81262f174f13e9167896029c1199a4872eaecb4f9ec. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T21:43:46Z), 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/KRB131300005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdf809dab244b2b76c9f960134fae4da1e2f18b85d3ff2cbdebd9d6933cf294a. Chain 2 (Bitcoin): anchored in block 958714 (2026-07-19T09:51:44Z), 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/KRB131300002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x245c8f11ac707318fa9d982b9836509868fb65618eff9f32d3904784c89dedb4. Chain 2 (Bitcoin): anchored in block 958825 (2026-07-20T07:44:12Z), 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/KRB131200008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13f8ba1d45e084b1e157fdee977523fe5ba34be0405723417372b494404527d8. 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/KRA491300962.
My Love From the Star (Original Television Soundtrack), Pt. 6
My Love From the Star 별에서 온 그대 (Original Television Soundtrack), Pt. 6
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a3e83b440fa4b07885fe0fa2fa08f4eb96cd47ab6bc9104a71fdb5ae3175ea8. Chain 2 (Bitcoin): anchored in block 958075 (2026-07-14T22:55:31Z), 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/KRA381500621.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdacfce71743f6ab3e8e41069def4c20d1a3c52b1449f7cfd7c15e605878203ea. 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/KRA381700223.
Man to Man, Pt. 3 (Original Television Soundtrack)
Man to Man, Pt. 3 (Music from the Original TV Series)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65af122147fe12bb5fe9d7b7477d55143468ee65af4bec9ee0da594c5fe4f983. 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/KRA381701832.
안단테 (Original Television Soundtrack), Pt.1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe3fa7fea744afd33399b4d96cb6aa7154e0e7a48edf42e9b5d1fd8c97a786ab. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/KRA341754454.
Andante Pt. 1 (Original Television Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91a08ce51610419e09dbb53dfdbf3ee678d225aab2f7f5adc9af80c59fe378d9. 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/KRA381703339.
Clean With Passion For Now, Pt. 8 (Original Television Soundtrack)
Liver or Die (Original Television Soundtrack), Pt.6
Liver or Die 왜그래 풍상씨 (Original Television Soundtrack), Pt.6
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb544e6b5b4ee3e5eb01e4b5aa7c11f459f6bf6322b9fc3a330ade8077da3ca1d. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T16:14:34Z), 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/KRA381903299.
Angel's last mission : love (Original Television Soundtrack), Pt.4
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x431dfc7db0950bfa60ad74d57021addfe8cdd47c75ac695fc86ae2834e84a41f. Chain 2 (Bitcoin): anchored in block 956425 (2026-07-03T01:28:11Z), 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/KRA381904679.
The Tale Of Nokdu (Original Television Soundtrack), Pt. 8
The Tale Of Nokdu 조선로코 - 녹두전 (Original Television Soundtrack), Pt. 8
The World of the Married, Pt. 5 (Original Television SoundTrack)
The World of the Married, Pt.5 (Original Television SoundTrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98b9f8347ca76926c521ace110530379296d9b41270bdf67e8cb057d31bbce69. 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/KRA382005232.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7945364d71be8acefafd36bf085256e20ec23668b2a871a05d24165665486b6a. 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/KRA382007217.
I Can Only Say I want to Die (2020 Ver.)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8dee47d1cd785cd5f90bca70b7fe1974698116b4c88ac3f0096488ed17d32936. 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/KRA382007219.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2906a665e357714fae6a3ebe78f390d6d429c18aa0f9fd4bff948f8069cc2fb. Chain 2 (Bitcoin): anchored in block 957898 (2026-07-13T19:28:48Z), 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/KRA382007223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd28e51d405456807a29c53e45069ed85c2ae4e1794af67650b561b75fa57b63f. 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/KRA382007225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb5695b14378d6202e5a6c7bccfaf0beeb3b49a6e8c258f61e2fee4ecd2fddba. 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/KRA382007227.
Hello, Me! (Original Television Soundtrack, Pt. 4)
UNDERCOVER, Pt. 6 (Original Television Soundtrack)
UNDERCOVER (Original Television Soundtrack) Pt.6
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfa6f718e53821d2cd9a996b0fb9625145f16e21ce83212c15f28d8bafb191b9. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/KRA382158963.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cb6c647a7367652623265d060ba14c139af4916e00891ba7626a75092cdf600. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/KRB472102226.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cb6c647a7367652623265d060ba14c139af4916e00891ba7626a75092cdf600. Chain 2 (Bitcoin): anchored in block 959132 (2026-07-22T13:20:46Z), 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/KRB472102226.
Nothing Without You (Nth Romance X Huh Gak)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x305237f8e5e441d28c16832649a72aa1815ac275b09416870f260fd354ecf0cd. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T09:16:54Z), 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/KRA382164290.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb497aeb1fd7f817d4681fdb15acfee1153bbdfe9ffe21cd3ea1d7a69ffe8036b. Chain 2 (Bitcoin): anchored in block 958111 (2026-07-15T09:55:18Z), 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/KRB472200128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01ec7a5fbfe4f9e089716beaa2ca12318de433b8ce78bcd7b82f224c907b8ef3. Chain 2 (Bitcoin): anchored in block 958268 (2026-07-16T08:56:51Z), 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/KRNAR2207888.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf85ee73397df2fef4ab66587a424e590d952a6bdb98c8b70aebb4c4bbd62857a. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/KRA382300767.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf42a340bf7e66656adf7d23b16947e13d7b7c9ddc77c8c6311c39fefeb2f2099. 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/KRMIM2482704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91c62fb0e9870aa00980f192c2d6fc02043f497dde7eae504729c30bfcdcdc9a. 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/KRA382501230.
H.Y.B. Project - Your Song, My Voice #2 ‘Get Ready To Leave’
Bon Appetit Your Majesty (Original Television Soundtrack), Pt. 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd27fc0a0a3002b6c765eebf16e67f3a7bf6f118e180f14c95b94c54aa7663baa. 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/KRA252501525.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92f2e838491fa719715be2fe23377b0330a8a2b370f3581dc30be8ec2c86028b. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T02:22:58Z), 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/KRA382505714.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37231ae80633feb034709f1c21b34fa4aa01e7e04d10afcf088803dfc8ac4f0e. Chain 2 (Bitcoin): anchored in block 958830 (2026-07-20T05:30:12Z), 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/KRMIM2557320.
H.Y.B. Project - Your Song, My Voice #3 ‘Snow Of April’
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9cd4e9a34cd3eeeb06299e6c4849ba2119c313b1b21fee6817685e57e5fc0c5. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/KRA382502558.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x081e4e45abc4033414d1a5b332ef2a2d0a28a934a8dc43afb900181181151442. 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/KRA382502559.