is a Korean and Japanesehttps://nexz-official.com/ boy band based in South Korea. The band was formed through the reality-survival program Nizi Project Season 2 and managed by JYP Entertainment and S
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 0xc4c545aa4e7e138d97241ff1dde59c2136d6d5f720d2855ddf62726cff495293. 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/5387fd7d-db5e-4839-9ad2-ae8049279fac.json and https://artists.proofprofile.net/proofs/artist/5387fd7d-db5e-4839-9ad2-ae8049279fac.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 0x1f85cd43ed4e1fe096ef1eb58583f880af1c414550b35725de21bdee42e86875. 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/US5TA2400118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd155cf913932c2681449effa77a34811e1330f95683b99b78343acf9ec59f233. Chain 2 (Bitcoin): anchored in block 958867 (2026-07-20T11:08:30Z), 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/US5TA2400119.
Ride the Vibe (Japanese Ver.) / Keep on Moving -Special Edition-
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8565b77928a3881806d08c873a944f7af0cfe91cb648eea6c9eecea9b78f2ae2. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/US5TA2400314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec9c075fe5ab4a987a7b909624b732dfa485ec18f5ebe24299a4bf39311b9fe9. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T15:07:00Z), 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/US5TA2400315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1caba2a92b794989d04edb63ec5327558195f586cce03dce2755acbb20209e22. 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/US5TA2500058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa546d330bed4d6f9a6d9a6e13d1a060a5a13f687cd2df873aa26361a94450ed5. Chain 2 (Bitcoin): anchored in block 958473 (2026-07-18T00:52:36Z), 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/US5TA2500059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc90df7fd1f4c6450c0eb3d4a74a071171549d370bf03e49e68ace02077a124e8. Chain 2 (Bitcoin): anchored in block 959118 (2026-07-22T10:01:58Z), 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/US5TA2500060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fb090cd6c05a3999243df508c9aec7051d5da9b3e965387a4703c71229870a8. 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/US5TA2500061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61d61799c589c81dee6541df1c2c04ab6b692d3ef1f7a57dc3e6aa1122e27162. Chain 2 (Bitcoin): anchored in block 958793 (2026-07-19T22:59:45Z), 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/US5TA2500062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c8517b435fc997d63af4d334256ecf7030f00d4356f2f528acffe4bf6e30d94. 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/JPU902502174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x935f332c3ef9505604b8144f66e638f260fb33c2f564fd472b05efd857bda3f5. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T02:49:15Z), 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/JPU902502175.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fc13c87bd1223b138f9eca074a09f8bda96a62005e74b0a5c31178188636083. Chain 2 (Bitcoin): anchored in block 958828 (2026-07-20T05:21:06Z), 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/JPU902502177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf61353bbd2880642a7a77e63d6aaf6c726d10ac8b8928f0b672d9ebeb5363bf3. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T02:49:15Z), 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/US5TA2500324.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79811dc6976fe6b027ab8c24bfd9176b35940db74d849f3ca7f183a4fd2959b6. 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/US5TA2500326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22c8a3c15b0433eb39b89a2af856e838e9e01a23bbbf791345684bd9c5170dd5. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T02:49:15Z), 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/US5TA2500327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee72a8f8035eb4dae21f352d76ab6d0e59ece595a0c298e5a6f4c2cf3144a1fd. Chain 2 (Bitcoin): anchored in block 958882 (2026-07-20T12:45:27Z), 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/US5TA2500328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf84b1bd8faed42099ed47029fba154fe23f3d6346a111891b3d4e8036e0161e. 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/KRZ282500204.