ZE:A (Hangul: ), also known as Children of Empire, is a South Korean boy band formed by Star Empire Entertainment in 2010. The group is composed of nine members: Kevin, Hwang Kwang-hee, Yim Si-wan, Mo
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0xe6e23957c2002c3f4179c5d788d1cd210aa6f3e5e1e8c0f5071f4cba73cb9a09. 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/314edb7c-4043-4ac8-81a5-500456a276b6.json and https://artists.proofprofile.net/proofs/artist/314edb7c-4043-4ac8-81a5-500456a276b6.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 → block OTSBitcoinBlock must exist at that height 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 0xfa3486d79a8ec995d9c84031648c7d7fa9d4e367bae1e08fb069764ef0a22034. Chain 2 (Bitcoin): anchored in block 958169 (2026-07-15T16:16:18Z), 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/KRB491300301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a8892f45a732b2786faf38b4d4280a2fd27b961d4b8bf3db6a02c305f47a14b. 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/KRB471400047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37dba066425895787d101a13b072c450d487f16b850856f67712ee6e8e1eacc9. Chain 2 (Bitcoin): anchored in block 958086 (2026-07-15T02:55:47Z), 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/KRB471400141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b7d64866a3da438255a07adb55ec6de9747e3223638890db9e7b6b13cc17dd4. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/KRB471400143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18ba1f9382c479f9e2a666e8b717481068a3b69d23c6477a4e97119105e02c6b. 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/KRB471400049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9f9093e19cb5b0193ea350911e68cb319885aabf0796a9f502e4887e48db6da. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/KRB471400053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4afa9dcc61a6022a0d04d11f47290e5ca88136f1278cf5794913a9e5661f455. 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/KRB471400098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc05880a8385d74ca55fceb1161b90c485f3f3802930520ecc53ca858af3de9a1. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/KRB471400099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5af0cad9b1fe7ec94493f972fc57c96bdabcd0aa485d0a5bddd2ed1b62a85500. Chain 2 (Bitcoin): anchored in block 958350 (2026-07-17T02:31:22Z), 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/KRB471400100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x572b57f5ba5feb95d9eed542ddc15a4da82aa799c06386086713fd5a1a1217b9. 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/KRB471400103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff16e972768a20c5930370f7cf7c78638faa050c9118ac1b16f9451ab8972be4. 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/KRB471400104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1f9b2b2f162606b9142f296ec8917bee9e9ee2e3ba195ec6fd567ccf7ee46e9. 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/KRB472200308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac38dd19ee015f4871f175c9f0eca7a140bf6fa464a19b50f400a8699de161a9. 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/KRB472200309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x365226037aa0c5328831dc5e37f73af03c3dbcd9da90e40b9fce25be6e79bdd6. 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/KRB472200310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4ddbdb4275082d045ef7430cbcf78ea229a96817fd8ed2473bcc2b1305dfff8. Chain 2 (Bitcoin): anchored in block 958075 (2026-07-14T22:55:31Z), 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/KRB471400022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1978caf90bf87e88eb473eab7b3a307114a0b4c0d8cac6ea43754bda7a7316f6. Chain 2 (Bitcoin): anchored in block 958404 (2026-07-17T11:34:58Z), 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/KRB472200235.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6af41f98fedeb47707b9bae17c826aed3fe129ec3fea207148947485f048adfb. 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/KRB472200236.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36073eaf0898051facdc1471ef3c32eec65de380f25b72aab941c32c2737361c. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/KRB472200232.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d1d65c66426e9cb907251602b30a70b279d6dfe0aec2b97b5a14bd59a1387de. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/KRB471300024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7bd9e96475ad79de7f094f04fbfb4aefc3a2c3a78bb4b6ea7a83afa409e9e09. 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/KRB471300025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ce02e2fc151bac1366a7414dafd5f7628707db21ae445c2676ebae702c1ce02. 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/KRB471402718.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97b01585cd31766d20eaa5add40381e2ecb956d433aee2f66f19a9f9c52b4167. 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/KRB472200217.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73732e7618b508d7b20dd1f029abc18f69e527c5fd467ed5c8810fa724c9778b. 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/KRB472200199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88198beb07dac4a9b079fee209257870be368460b174d3f3a0faeaaf06d0ddb6. 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/KRB471501638.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc09c799788d46baaab8085739433a6ddf04122c81f2cd72cdcf464b0e67fc91a. 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/KRB471501639.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8bc6dbbea3c65d631aa834f39339f4bfc1cb59ab6c8234bc2f4c080d0bc77b9. 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/KRB471501640.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbde6b40fc53aeeda65d8e372161f97f1be09fa21d6dab1cf0a9e59ed307cb140. 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/KRB471501642.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfcb29910beaa647cdcac1ecf99ae5d11c571960a97f9fd86dc9d67669875683. Chain 2 (Bitcoin): anchored in block 958695 (2026-07-19T07:37:00Z), 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/KRB471501643.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x427b9c3437cd37c25dee6ed3d21d942ab62b354677d9759389ff98ab54536dff. 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/KRB471501644.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11579f621117262ebb40e1757e10654c46ef8c79e6df496ca3896a383bceffa8. 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/KRB471501658.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99ae228b153818d06de24e7ad1a8fd4926461a97149117de088c1abdc403a33f. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/KRB471501648.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1765cfcf1257ee59d594ca93cdd1effbe6efe7869bbde4705adb830bfe8b6eac. Chain 2 (Bitcoin): anchored in block 957801 (2026-07-13T04:17:08Z), 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/KRB471501660.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5f36d8086e0a46cf9cae642bd4fdac45a89d6d2f6f2330b6d6769d614366ff7. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/KRB471501661.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d3804957793727a403708b5aac08ceaea402bea35f03a5b8d8d0e3b6dbc9df9. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/KRB472200197.