Kim Do-kyun (; born January 12, 1973), more commonly known as Bobby Kim (), is a South Korean hip hop and R&B artist. Music career His father, a trumpet player, influenced and exposed him to music.
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 0xca5c6807ab6492b1d4552aa260daa1791ab706aa826bb3b3b9e94cf6591c11cf. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1564b4ff-ebfc-4175-9413-b6ea8cf7b2b1.json and https://artists.proofprofile.net/proofs/artist/1564b4ff-ebfc-4175-9413-b6ea8cf7b2b1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
It′s Alright, It′s Allgood (Feat. Yoon Mirae)
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 0xfd212ae9a9c7e0d81ab0eccee127016a0637ae89fc8fb0d84b08dd4e4bf6374d. 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/US9BP1030380.
Falling In Love Again (Feat. Bobby′s Father)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97a61fbb9170d61e04d32783e0a14d31433d0e8ca758576428a225726c05640e. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T05:02:53Z), 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/US9BP1030383.
고사: 피의 중간고사 (Original Motion Picture Soundtrack)
Spy Myung Wol Pt. 1 (Original Television Soundtrack)
Spy Myung Wol Pt. 4 (Original Television Soundtrack)
Heartburn (From "Glory Jane" Original Television Soundtrack Pt. 2)
Hitman Project #3 : A Tribute To The Hitman, David Foster
I Summon You, Gold! Pt. 1 (Original Television Soundtrack)
닥터 이방인 (Original Television Soundtrack) Pt. 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5c67abadd1ea0aa4ccab293a998ed1ec404d0ebe27c809b8b73884e3d7b68ba. Chain 2 (Bitcoin): anchored in block 958724 (2026-07-19T11:19:01Z), 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/KSA012146676.
리멤버 - 아들의 전쟁 (Original Television Soundtrack) Pt. 6
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x645fa9505b9c1fe39ac95138d3f272d6d89be7e47211bf3f2720040ea07ab376. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/KRA381600205.
Remember (Original Television Soundtrack), Pt.6
Woman of 99 Billion (Original Television Soundtrack), Pt.1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x664c7d388e9587cb1a04fafa2503525865c5087e2c229373291d6f8ca35b4143. 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/KRA381900897.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa357fd864d334caf9d631bfaf9d7b6e485eff0821c9c74f4ca82e5cb984331e8. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/KRA070800004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f257a10e28387eb8a7fd654829bfe98c940a074cfd704392d6bbd7843cb1d30. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/KRA330800005.
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
리멤버 - 아들의 전쟁 (Original Television Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bf989bf6904568ea859ee9089a73f4648063540db110a5c768005ff12d5a36d. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/KRA381600279.