SS501 (currently promoting as Five O One) is a South Korean boy band consisting of five members: Kim Hyun-joong, Heo Young-saeng, Kim Kyu-jong, Park Jung-min and Kim Hyung-jun. They debuted in 2005 wi
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 0x3c43025103979c50b73d0b2ef07486c905eeae8c5f36e8f85bb87dbfb2a1b4ee. 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/8299cf55-bb02-4a0a-a706-b4ecedfaa8d8.json and https://artists.proofprofile.net/proofs/artist/8299cf55-bb02-4a0a-a706-b4ecedfaa8d8.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 0x9f2e06595adece2505e9b52e0a1af9021b86c1cfb5c103ae9ed3be5838b23df3. Chain 2 (Bitcoin): anchored in block 958115 (2026-07-15T10:19:34Z), 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/US9BP1370005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75775ad4ade914a2d5044e5f26bf6e63bc550fc1b986e46a09f48cafcf73f235. 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/US9BP1370008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9dcf4b2baee8dc46b094d638999ee693af0f6f1748f8c00ece12487fcacaa9d2. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T03:43:04Z), 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/US9BP1370010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4770299430e2ddde9b0c482ebd559f8a0aad2b2698ca7ab15f09c9235b6eb9b. Chain 2 (Bitcoin): anchored in block 957697 (2026-07-12T11:22:18Z), 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/US9BP1370015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x514c25807917279064cc2bab5d5b90a09d7e09ecdb962cf60ab2f21090168760. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/US9BP1370021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9575e110425ce9f601f3985907714c47e28981d5d6292920599d00304d17454. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/US9BP1370022.
Kokoro (First Edition|Hyung-Jun Version)
Kokoro (First Edition|Young-Saeng Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd7eda09dd4263da4e76c0a2a10f9454e607571d444d1911ca1dfd333fcf2606. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T14:38:07Z), 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/JPPC00700947.
Distance ～ Kimi to no Kyori (First Edition B)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd7eda09dd4263da4e76c0a2a10f9454e607571d444d1911ca1dfd333fcf2606. Chain 2 (Bitcoin): anchored in block 958838 (2026-07-20T07:01:21Z), 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/JPPC00700947.
Kokoro [First Edition|Hyun-Joong (Leader) Version]
Distance ～ Kimi to no Kyori (Standard Edition)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4e5529a0254c3506fff6844f8adc3f76e20d2760d515bb4702e932738397abd. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/US9BP1370029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x382a2dfd3d3aecbda83887eae14af8cb7c333d8168ce4af9b739962cb0823758. Chain 2 (Bitcoin): anchored in block 958491 (2026-07-18T04:29:42Z), 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/KRA340901066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7816a3bf32cb2b5436ec588527e367157d0a591baadace79e884cbd9981ff29. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/KRA340901072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78735bb7b76f20301479cba146021a30f06b5b535f79ca022098d109215c5cb6. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/KRA381703872.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6c61a19a00595af005f6bc32324625024052f4f88b46e0c98487fbcc70cbbbd. Chain 2 (Bitcoin): anchored in block 958115 (2026-07-15T10:11:36Z), 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/US9BP1370036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d0887085583b65e3120d80c53e46f9c876b896ac4e4dbcae0dba404422219a8. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/US9BP1370039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf536353ed1f7a172a2c1d191afa0672324174889a5f2af5f31684c878524740. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T11:26:17Z), 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/US9BP1370040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x647b777af087ee59b96942b98b1c891be06d36baed086cb5f10ade97b488402b. 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/US9BP1370041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadd23954fc162985c10f66745cd4d0539b847fca7f038d247b16b9d4f09a0753. 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/JPPC00900945.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d5c75415eea53a3db2d3b82834d1462fe350bf82b999e2e484b459a6991ed0b. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/US9BP1370042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3c2bd8209e495e691c3fec20296e992ecf5d0bd2e56a7be9caad03e7a3a2f66. Chain 2 (Bitcoin): anchored in block 956862 (2026-07-06T02:10:22Z), 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/KRA341636717.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdcbcaf97e85cd989a71fff1d13a82a3caec0cd14abf3cbe3dccee95742a4a62. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/KRA341636718.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2daef2a3ddfb947ba03fa8ce22acc94d4430aeeb3e5c965580394c40f1e3f431. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/KRA341636831.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63978c11432444333da200fcac74a624f9f0cdb94636aa0080b3123f7fcc1043. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/US9BP1370044.
Let Me Be The One (Acoustic Ver.) (Acoustic Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe36e9058f745de0853374bea52228d6810d18def7666aa4dc9697d83e9c0b5ba. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/US9BP1370053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f081670d680b62ba18eca58483e87fe9e5b743bd2880cfad92f0939327c47a5. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/US9BP1370054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1fa8b5f20ea4482a9157b85ccc06e7d6f1ff204425f6133d49da290cedf218a. 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/JPPC00700948.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbaceb7464bc4cdbc8142e4c1ad8c96bce62c1029dba760883847233da5abc306. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T02:33:04Z), 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/JPPC00800804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ee1312ae16aca7b542ab573167802f4ed4c3dc7c2344448a376c7d386ff6c4a. Chain 2 (Bitcoin): anchored in block 958612 (2026-07-18T21:29:37Z), 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/JPPC00800798.
Surgeon Bong Dal Hee (Original Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x680f30d11d52992c558028f32e5abf4c038b07ebcaa1ac095dcd8a2604e782cc. 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/KRA381703842.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0aefb4d6d8214d9c2ec2561341e9932a2f1fd69231bbf4681ce1d08a3064fb0. 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/KRA382324309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0267dca554ed02c671d0a10a0fb94d42f3753c63e310297924671c7b21216be. 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/KRA381703840.
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