Nam Jin (; born September 27, 1946) is a South Korean trot singer. He debuted in 1965 with the album Seoul Playboy, and became one of South Korea's most popular singers of the 1960s and 1970s. Biogr
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 0x222098c0b0f53355ac7e900e2692c0314e0815fce4ea12107169bd6c5eb8ba8d. 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/88a41d36-6697-47dd-a3fd-53102446fa5f.json and https://artists.proofprofile.net/proofs/artist/88a41d36-6697-47dd-a3fd-53102446fa5f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Composed by Lee Young -hwan (Nam Jin - Glory of the Day / It Will Be Forgotten)
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 0x7f2786ae40c1228e4cc293c32d4da0ddae40c9b3f4d6fd659b4ae9000c5d92ba. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/KRRAS1615843.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54fddfb51a77db0932c773f21eede94b87de3796fdcdd279be00b7d1f40619a2. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/KRRAS1615842.
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
Lee Mija, Nam Jin Dual Album (The Unfriendly And Friendly Feeling)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1d89601889ad0f4359e4d5e3b83f2eb879a21d13d9aaee79ff93a26757a2941. 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/KRA341440143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a5a452bf3ebca510cfc5a8f031017589a19814eac8487b0dd3e349cb46cdcb6. 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/KRA341440082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66d04308d0c2d3052b685934bf14a23ec46febdbda4ce74ec5214a164baca859. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/KRA341440092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfcccd2d0b6a3c2469fae74d6c11a642254528e54b95196dd850f45d160cb20a. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/KRA341440085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67012ceca0246eed0b63e753871165212164be76aa7689a581d6c66dda0802b9. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/KRA341440091.
Songs Dedicated to Kim Dae-jung, Former President by Nam Jin (Mokpo Harbor Welcomes Dear My Love)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cee43325fe09523bef8bbbeb42ec45b3963da065199594efe09b6dbc687ff83. 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/KRA340911912.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b8b278ef71b85d34e917a37e7c195dfecb8f19974408ee88de31b82e94e7ebf. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/KRRAS1686536.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d382ea105b3de3466e43f5367e68901d12d82549e13cfd3a6c7276e6887e1aa. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/KRA340914135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66bf2c17c1b21df94d30a0a858ddaf49c20e21411a984f02129681b09ea8434c. 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/KRA340913383.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcaa30ceab4955af317737e478d6956c9f0500d7f2298875e1dad7675b44a2a9d. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/KRA340913377.
Nam Jin/Na Hoon A Hit Music Complete Collection
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe98a0a9ef2ef9cd812d55711ad1ef22903a51a4608ff662bc66d0ff95b6537c3. 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/KRA341340511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf885606352a311427bb5894e6cd87d7e61fa6def508d18dce0f0e67e2071250. 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/KRA341401488.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75d1901e46d71c0e4ba2d4ba82986a7ad2bcb47ad1d8b24967cf265c95383497. 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/KRA341401492.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3eeefa1781d62f4bf03cd8e14e2c8a22192672f5614444fd0ac76346d6ac1297. 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/KRA341401494.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56a25594c04b42e2eb2cf1fc51663445dec1754b95e9ba2e9d5838f7b4fd580e. 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/KRA341401484.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d84d9ab39e230b4b7668667dffb58db4b318154c259c71e02394271cd9563ad. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/KRA341401463.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf9374ca7a6668e117f3e19915bab4870ccf97e5e20229659959a6bff1ce1e42. 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/KRA341401464.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cb1c99b24eda26d935e63725f8400f4249f558ce69a56ce2f6cd98522267d03. 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/KRA341401465.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc46e8ce094249a6a42d9913170b576cdeeca29acc0f7878d9495cc6778714359. 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/KRA341401468.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe32df83877917ee7e6c019899ee37b6b5bada1e5882771ee9ab708ed5480e53f. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/KRA341401469.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe18e010cd6224842702cdd66364a1b9a3b27ddfbba27746252d6532bfc110a5. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/KRA341401473.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ec514ce47f7c61c99f804e29217aa82ba835113d39f9763b88babe646cb95b4. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/KRA341401477.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x564a003cd392a5ad434569664d5b5175c9aafb30d32b35ff23415ab96fb389c0. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/KRA341401462.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad453aace77dfea9177c5a268b6b1c1e9e10576df4f4ee5d69d44c051df8fc68. Chain 2 (Bitcoin): anchored in block 960459 (2026-07-31T20:22:46Z), 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/KRA341401466.