Kim Kang-hoon (born Kim Jong-woon; August 24, 1984), known professionally as Yesung, is a South Korean singer, songwriter, actor, radio personality, and television presenter. He debuted in 2005 as a m
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 0x5942a68642c9a40a9c5b273fb6f8ef109e246275bc38a9f7091d17fd4908902b. 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/20a59118-4535-48c9-a6bc-aeea8dc9ec11.json and https://artists.proofprofile.net/proofs/artist/20a59118-4535-48c9-a6bc-aeea8dc9ec11.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 0x46659e6ad1ca748c145518bce9040e01ceda7de03caa7d70501e753eac5854e4. 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/KRA301700048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0761c8d0e604e304e403fd339a84ac7599ee451ab6c07ebf96c398b2191b7884. 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/KRA301700049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf20f2f13ffe0cb3e36a511e1835163a787695f46a17f8826241406e2f2df151. 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/KRA302200279.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0caa67ee14c91f2474520263e493522131b4bb73eedc7542afe9446eb712fa24. 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/KRA301800600.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58500529e6d5593ec6f4ad39bcf2248ee80ae5e62dafe74d31cde70e34e14838. 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/KRA382208066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27f942dd93df7dc6c9c78c200e861ae0e6ff71931c76eb5ec52ff580844bf2b0. Chain 2 (Bitcoin): anchored in block 957032 (2026-07-07T11:43:09Z), 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/KRA382208067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaead0ceba296d8a32d3067f24c07c2dec1e1d86ba13ec21f77fb9ca5d30eb264. 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/KRA301900004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4e99a00e768ccda9c5f19a21a5e491ffcda6f3f60a23833f1f20d54a41c9d88. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/KRA301900005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7f421ae1b3f04c727753bcc5293f3012e802fa22315a6246c6c3607acb66b0e. 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/KRA302000239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfebba0c11e763b65bed9cb5f53841608f83b4c458a7224ae1e1dff279d6293f2. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/KRA302000240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd3a22e8d35a6e52e9c18c39ec0c6792ad90c5061de1498d118170d3e9ca23ef. 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/KRA301600076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe47da0791beb939551204e9f38e33061b8efb1d6cbe4575ba0bd1b89f20762f2. 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/KRA301600077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9183d147524f1ad5e0f7a90c8c8ba08de62bd014a3e3e42f9a3c0512c365de6. 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/KRA301600078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3fc6221d89acc2af49c0675ce6241f3aea2bb70e0498170d67aaf0f362f59ec. 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/KRA301600079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc57542c1ec771dc07297347f80b0a2a0cb402eb16a995ec96880c0990bfa324b. 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/KRA301600080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3af47682924fd70c68cbb33b334ccf13eaf3dafec75aab6e753551eb61a456bb. 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/KRA301600081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0513b28376eddd18ae5a18e76edd02602320734349ae22a5f33bdb54187350c. 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/KRA301600082.
그대뒤에 있습니다 (Cooperation Pt. 1) - 그대뒤에 있습니다
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbecec562384e4a7f760044dc990558fcc22b12912d13510e19e22e9411e00b32. 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/KRB471400055.