Samuel Seo (; born May 3, 1991) is a South Korean singer-songwriter, rapper, and record producer. Born in Seoul, he spent his youth living in his home country, as well as Japan, the United States, and
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 0x755d0c3899c10d91a86a054834379a3d34770836cd3a8f904358ca6005085c6b. 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/874508bb-3577-49ef-93a6-9f774ebca817.json and https://artists.proofprofile.net/proofs/artist/874508bb-3577-49ef-93a6-9f774ebca817.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 0xa3e1dcee1a4a2ca216b5ae5034dc192f46b716999fa8f22ac29b0b3375155047. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/KRNAR1605289.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48ddb797f90a3f2ab7e217e19261b8144e593d07cf855670e7bba08a77d5e8ff. 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/KRNAR1701965.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf2f9356ef0d58b0522358ced56e16aa357fbf33198825b370d5ee67362faf7b. 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/KRNAR1708173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdc8bab8fb155f04b66e992531ce499535f6d85f24e77f908754c2ad526cb5f5. Chain 2 (Bitcoin): anchored in block 958733 (2026-07-19T12:51:21Z), 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/KRA491800343.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25f7593ed60bfb2cf4f6de3ac91003a94997da464955d47fa36f7631f14191fc. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T17:14:36Z), 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/KRMIM1807343.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b066a849ff5f5647d4aee9f0cb449df7ab38fd00cdd8469b16f886cfe91d228. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/KRB471900624.
Doctor John Pt. 4 (Original Television Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf67b5379bc2067ada723a10592df84b99f4999e43e41d3ec29d3d9c63951648. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/KRMIM1914259.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94e1b6e6d0d17fa1ea6cfe540785d7be06bc9ea93808ab1aa2f62105b55d00e0. Chain 2 (Bitcoin): anchored in block 959031 (2026-07-21T16:15:11Z), 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/KRF251900155.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd347a7f4c170b7e955a00de7ab7ecef42d82352f3cadb2ea3cbaf2a7701daa8b. 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/KRF251900156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92d97f1f1c46d10e8ca2e78c146fd8366ebb127218df0aa880c1a41c458885dd. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/KRF251900157.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcafc4e4ce84a447831937434e97af18b660db9e527b0877d4b83cd9a10ef2ba0. Chain 2 (Bitcoin): anchored in block 958703 (2026-07-19T08:36:12Z), 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/KRF251900158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7e4fa69a46b1035c40862e0cbb5206d55716f24540e39f74c1ea1799c1c7cf4. 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/KRF251900160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cf85a72f03aa397bc7e392bbf9ce346f5756a7098850a49696abff374224631. Chain 2 (Bitcoin): anchored in block 958552 (2026-07-18T13:15:29Z), 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/KRF251900161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58dfa557acd0ce577400fb20ca7ef2f365cc91c51f90699fcd50f16033f76f42. Chain 2 (Bitcoin): anchored in block 958885 (2026-07-20T13:01:04Z), 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/KRF251900162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x121a9701789b132ef06368b36f35bdb24eb23f05133962f736c912853eb61817. 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/KRF252000119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65bb1a291c7522f7d8a62ddad620acb4e584d52ad01fe3edbe0957284398add5. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/KRF252000120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86ae0b0d676206a442a226407bf50ce695a529d7fd6986520183e1222012c014. Chain 2 (Bitcoin): anchored in block 958662 (2026-07-19T04:43:15Z), 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/QM4TW2338911.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b04ecbd332df9140051f03097687cf4cc6116de25cb653515e400fc6b6c066b. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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/QM4TX2329646.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5be69b70229f7eeaef145eb4d4a7834f6cb9c741eb415cc8ff7f9220b7287ca2. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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/QMBZ92314952.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3389d392344d2d2bd945f3c06ac07df480cbd2f15bc3dcbe5e1edfe5151a42d2. 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/KRA382006255.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x385a69e6483b9f8e44f5b29560e51d8cd4625ab3ecac3f2f4669320c4618e15b. 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/KRA381601038.
Going In (feat. Mckdaddy, Khakii, Don Malik, MC META, Huckleberry P, Basick, QM, Samuel Seo, Ja Mezz, CAMO, Reddy, kaogaii, Blase, Queen WA$ABII, WAllE, Bruno Champman, Chillin Homie, earlswi
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3a93bb19055aedefa061cf9cee6d018aa0a8fdcfcb84f2ecf8a60ff90de0223. Chain 2 (Bitcoin): anchored in block 960099 (2026-07-29T11:30:20Z), 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/KRB462100146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64bd1a85863b221ee18e7ed59f0b70a1ee4120c1547e684ed65daba722fdbc4a. 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/KRA381701833.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9566cd41481075a50ad4668cfcbe7855f517b521a865d82d49e85a70e6ea0946. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/KRC391800042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf26ab8f4824a61b9a68fff08a9541d7f4a7660a1a53647c6344e9514b0a4975d. 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/KRA382207556.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5ea10f0c3c112f546769faec261a332207e7166f3979c64b7561b358fe44083. Chain 2 (Bitcoin): anchored in block 959132 (2026-07-22T13:20:46Z), 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/KRA491601071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6995aed7d37107ecddd99a7c9c51305dfc9ec2330db2bded2c52e38bf393f5b2. 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/KRA382007191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9794d5f1e9e5045e68210984f935eff2dd5ccef482bf284ba40f01cd2ed6b0b. 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/KRMIM2029350.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x593b79e9cef9eac1087f58bd6916f1240efca13d9c84ce03fc586f10d9b0687e. Chain 2 (Bitcoin): anchored in block 957048 (2026-07-07T14:18:56Z), 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/KRF071800008.