Wonder Girls () was a South Korean girl group formed by JYP Entertainment. The group debuted in February 2007 with the single "Irony" and 5 members: Yeeun, Sunye, Sunmi, Hyuna, and Sohee. After Hyuna'
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 0x5fea7fe8330d1543908c5ea8ab3d9769977072638b141673437d50319267dff8. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/681a0e9a-fd05-417c-940a-b45961325525.json and https://artists.proofprofile.net/proofs/artist/681a0e9a-fd05-417c-940a-b45961325525.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 0x41c78afb59a347f6b2e94a04a9370f7ccd931091adf2bfe1e84840bfa3802da6. Chain 2 (Bitcoin): anchored in block 957780 (2026-07-13T00:36:44Z), 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/KRA330700001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3407c624c8fe6a9496bd3405926b1d3ead4308000542e3b415bbe6cb39dd7ce6. 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/KRA330700008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x547c8f8c62d34aab430e38dd40a018f73ac823d2365115bd33b1d394d5bfeb12. Chain 2 (Bitcoin): anchored in block 958126 (2026-07-15T11:01:21Z), 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/KRA330700012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x821ca7d40d69e1ae0ff49c095433a9e04d53c0ad48f76dddce04dd20e2dfc94a. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-15T23:57:50Z), 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/KRA330700014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59589ec48aefc4f58a84b9cc187e136e5a49282c1a1de4173c9193450d3bcfce. Chain 2 (Bitcoin): anchored in block 958263 (2026-07-16T11:01:35Z), 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/KRA330700015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d19d41934ecf59af41d189c64b0bf1c2fdeed434f5a357dfe1b60a0f259d9be. Chain 2 (Bitcoin): anchored in block 958115 (2026-07-15T10:01:21Z), 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/KRA330700016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36d03ee3824334cf63a8b3f4bf773744561cf5091714fda903328130ebb3640b. 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/KRA330700013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94e6312dc58bb07886e1fe12018bca60ef594a20dd25dfe32373932547d8e990. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/KRA330700017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x340018c1ee2cdd2006189ec0597b960269cecf1cf178cb7971e8bc5b15585485. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-20T01:43:34Z), 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/US5TA2000003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea2572a7c010b95ce8dce8451aa0429466404f3f480ba4291cebaa2adc0ee6b1. 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/KRA330700019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x232f21fa0bf3fc78ab7f74ac59613e273066abdbb9a2762a50e44845d2d4782e. Chain 2 (Bitcoin): anchored in block 958087 (2026-07-15T02:56:49Z), 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/KRA330800020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda19bd6dcf949765a86ecde7f8a47c73320ec1274929aee29db34fef555e1bab. 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/KRA330800022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x912d786fe3c7e96e614e8fdc01001227f456ae719d45bb0c4bb824d1dda84710. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/KRA330800018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x989d72b543aa95d353800581c07597e2ea9ccb16f7266903a7071281eda4410e. Chain 2 (Bitcoin): anchored in block 957852 (2026-07-13T11:25:45Z), 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/KRA330800021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda19bd6dcf949765a86ecde7f8a47c73320ec1274929aee29db34fef555e1bab. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/KRA330800022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ce4f99dd017494df0c163552342753d13a5a5e0cca2bd34914fb1d11337280d. 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/US5TA2000005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99dff2f914a30a65a0d8a8191a8425b56c2d66bfc01467a21d571e72f433d2b4. 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/US5TA1000026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c02de95df5867661de49c17ed1614f12f746ef5daf2bc2091dc684755d42f57. Chain 2 (Bitcoin): anchored in block 957863 (2026-07-13T14:41:15Z), 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/US5TA1000022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc7a0912a6a6446cdaeb41fe916a5f67fde75ea41091654e5ed13efe3d92c388. 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/US5TA1000004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c02de95df5867661de49c17ed1614f12f746ef5daf2bc2091dc684755d42f57. Chain 2 (Bitcoin): anchored in block 957771 (2026-07-12T23:27:28Z), 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/US5TA1000022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe80c7b8f7bdde6433f7b9b79d2c5db8aee8f37c09f4fd772e4f5b3fbc0455ddb. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/US5TA1100402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bf8e613fff2b5a76864d6285d4fac03a43a49f671761648e3a5d522c3c6e49e. 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/US5TA1100400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x980d328abb1a0764d9f6cf375a8afecedb7293ecf3a95fd214f5df5bebbdcaec. 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/US5TA1100403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86105c0d4bf6ddbb2da1a2fb789cdb4f2cc6da54ebab683b6cc3444b6dc35cf5. 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/US5TA1100404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8731f99cbc3b6e995724f3edba78ba4bea28731c8aad70faee6660b727450b7. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/US5TA1100406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8217682ed59ae7e7490a605df7b5b50d46a4fe2abc1af33e732ef0e99a416bbe. Chain 2 (Bitcoin): anchored in block 957867 (2026-07-13T14:55:20Z), 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/US5TA1100407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x420a3f662c4c109ec733afa29a6d27cb0284d8f167e054c1509d959ba8a888b7. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/US5TA1100408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf29a4b9a48af5d92ac3ee205318f395743f2d699ca682dc34b0526f3a4ce1d10. Chain 2 (Bitcoin): anchored in block 958965 (2026-07-21T04:29:05Z), 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/US5TA1100410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf25293f16ab68a381aa3737bd9dbdf3a5626d5f36080659eba486177a32df23c. 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/US5TA1100411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30219d47c4e52a83de9c204c5e9f2b483d7913755ebd2321ebe52e45b2861e5d. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/US5TA1200003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xece1170917de65c9d1243c153e61d211df09e770e6c047b999d8dbabdde92b86. 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/US5TA1200301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd59f22d37584866f13f58a48d65102bcb70c0c438eb643ef5196b1d4f0cef6e2. Chain 2 (Bitcoin): anchored in block 958600 (2026-07-18T19:24:05Z), 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/US5TA1200303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e045bd464c1ceb3f9decedf5b8a78e613647912ff419808e2cd8314e41eeab7. Chain 2 (Bitcoin): anchored in block 957751 (2026-07-12T20:41:42Z), 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/US5TA1200304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e1cff53770c317ef1ee0f0b7e6871623106f75e96f2ee5f18c5b5905e7f90a6. 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/US5TA1200305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cc4e0825f51297767f9e7030c140f201e1beb0c05dd3b6b34230191795a7717. 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/US5TA1200002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb695bad37c988c610d03575139745c49021abeccdfbc9e8159ea542fb8f65526. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T19:09:33Z), 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/US5TA1200431.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5ac63cd77e737890117d88fe462f25730e7fcbdca52cd865bcc122f40ae2552. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T05:42:38Z), 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/US5TA1500047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0287c28e0e66ab42857e39c9711516d2529671bd90c83f22e11c56bd6f81232d. Chain 2 (Bitcoin): anchored in block 957771 (2026-07-12T23:27:28Z), 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/US5TA1500056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c3d62fc8343f79d3c801dd29894350f5f91caa607e4f6ae92e87777d8a27baa. Chain 2 (Bitcoin): anchored in block 957767 (2026-07-12T22:25:13Z), 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/US5TA1600035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bf3fb8c50ac7b9371d9929674ee18458bdd78334767d0f5299220073e0390f2. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/US5TA1600036.