Park Junyoung (; born 12 March 1982) is a South Korean singer from Busan who debuted in Japan in March 2012 with the single . Career Park was a member of two different K-pop bands in South Korea, but
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 0xade9c46144c7da9a7e0af84163946744114d9b11f4d54878ccb483778a9dcdc0. 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/c713a958-6d70-4cc8-b8cc-406a5618d75e.json and https://artists.proofprofile.net/proofs/artist/c713a958-6d70-4cc8-b8cc-406a5618d75e.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 0xb710a8c6278c2fd837db725041e2082d4cd7982669c07ba6ca609af137d9527d. Chain 2 (Bitcoin): anchored in block 957658 (2026-07-12T05:03:28Z), 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/JPKI01119955.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x627c8eab5ad2a66bd22640a62ee05dd1d5e919a88f9e1fcc575d50cd4db54d5a. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/JPKI01415900.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2ed0416597f49d8104e7661f005c97d49e49b575a3d0a9f8b2717dd89f2f8e5. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/JPKI01716505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x753b479191b73e6267bfccca43477e39b8aafa5fe54b086c91a0bdd35e4d130d. 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/JPKI01515183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x895fa36fb36ba1198c9771a31069c8db9161fc9467d1eba68aa22bc58a597f54. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/JPKI01915431.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62b9eba75b48c6b7a2905953cdd81c9ccffee3b8deeded80519ac3bcb291241b. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T18:54:07Z), 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/JPKI01915442.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddee72b9eb3d6f5d93dcb807eb005442ae6b76fc99bfd7ee04fb587b53e3cd44. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/JPKI01915443.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef5f091ad8c0b48b2f9493a6786fe72e65a7af440c02a5e1d8a894d6015aff3a. 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/JPKI02210341.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fa2fda6ee8e07bde7d2e095098276c86ea0851fa62e205e029d37c4069aaed5. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/JPKI02215566.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43a686a165a6fa0fdf2ad93e88df8ff1dc9a9a8a09cc2f80cb4cf636e4675c68. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T05:29:55Z), 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/JPKI02215567.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5be3c4cb2b54c2c95ae488da18e05bc8e56d5078a2868b23e12a75a4b6dbc0d2. 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/JPKI02311568.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fff23ca555c5ccb58195b4a3cb3c1e61cc9a468ecfd8c3b50c86ce956cec8e5. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/JPKI02410032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4560c552f16b63cea92079f93f8bd9601daddeed0e1b0426fa6b0187865dca53. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/JPKI02210346.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0c25028fd568af06034bba6663567d873dd9bd2fc32574b4c13e14f73a01de2. Chain 2 (Bitcoin): anchored in block 959084 (2026-07-22T00:50:00Z), 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/JPKI02510062.