Park Kyung (; born July 8, 1992), also known as just Kyung, is a South Korean rapper and record producer. He is a member of the group Block B. Career Pre-debut Park Kyung started his rapping career
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 0x27493fb10d991f828885bdbfbc4fa90c77a12fcb494c2db1871c252e5bc8548d. 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/6206d875-6e88-464d-87cf-61417b0342ab.json and https://artists.proofprofile.net/proofs/artist/6206d875-6e88-464d-87cf-61417b0342ab.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 0xb9ceab6b08a93060e6f6de9b32704c2aafff8e95830255d57eed158cce4dc7c2. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:35:14Z), 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/KRC491600018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x681d146ef2037d9f4f7ac6695f62c94af0a1f3169a05947b0ef7478bb18f5394. 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/KRC491700002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb67e002286531333d1d9a903ecbb976e86df1b001e82e414b4aa38cf70c774f6. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/KRC491700005.
The Best Hit (Original Television Soundtrack), Pt. 5
The Best Hit, Pt. 5 (Original Television Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70a65d68450b834d46d9cb6db85e1a98403bfab5eac78226b569e6f2e2577061. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/KRA491601215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x565c09457a4469032d48f23fd7182a4a7b1d7e2a0c4618b9fedb87eeed0c8454. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/KRB461900342.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf62c8e3678e8c9b395b5c51dc9f14952e160cd0b676eb0c698b005f736738996. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/KRB461900726.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa295b9378ec0fb13c88122ecabd61cecfef49eb8b4ec7ee533ea4bd2fce54a45. Chain 2 (Bitcoin): anchored in block 957863 (2026-07-13T14:41:15Z), 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/KRB462000204.
Meow the secret boy 어서와 (Original Television Soundtrack), Pt.2
Meow the secret boy (Original Television Soundtrack) Pt. 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60cbd9441c7a09a1af6d15b464d532109de725830a015b41b22fe81e569cb6fb. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/KRMIM2006540.
Backstreet Rookie (Original Television Soundtrack), Pt.6
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f6e989e40d65e5aab90ec82e7f85a2018e87e45c97c7909822a72ff23fc99ea. Chain 2 (Bitcoin): anchored in block 958721 (2026-07-19T11:02:33Z), 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/ZZA0P2407082.
Meow the secret boy (Original Television Soundtrack) Special
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60cbd9441c7a09a1af6d15b464d532109de725830a015b41b22fe81e569cb6fb. 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/KRMIM2006540.