Citizen Queen is an American girl group formed in 2018 under the auspices of RCA Records, with mentorship from Pentatonix member Scott Hoying. Originally a five-member group, Citizen Queen consists of
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 0x7c2ab814cdc4683f10e782b6012368287a0077a3f26993e64043821925400719. 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/22ef47eb-a2e0-4660-bed3-175e3e52d05e.json and https://artists.proofprofile.net/proofs/artist/22ef47eb-a2e0-4660-bed3-175e3e52d05e.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 0x97b2bffece032ba1a691a178f5560c8129dd0c143820272219772a46e6da0433. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/QM24S2306201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb540874d83f24e7a50121f9526df622ac1e679bd37ef7ef7711fecfee4e253d2. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/QM24S2300954.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd4f63b00fc4d06239db83e6b1a7561644535dd512913b6a955fde95d15c49c4. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QM24S2306200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x268013d09bbdeb39d816a9cc8e783d0e8c5ccc76d2d4fa14426e1e238cf5d2d5. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QM24S2306079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecf73cb092e62a44e6dca9100747e08b662e47b7a706974e63bdecda04f16a30. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QM24S2202694.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b294de3d27c73ebc85de8792e79308278896bbe3adf0d3edfe7849c6f61c20b. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QM24S2306198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaac0f6bdfe97f414cc87e4586d27421350d9b78913c234845b8c3f1e3fa719fa. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QM24S2205297.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05c04601fd24e54666ac5c7cbfdc9d3d8f21d6837c426f75c7447143f7660942. 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/QM24S2306197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc317d054c45d975bd977fb4e604c6dbb4a9909d35a47dd3872a9627b252a6cfd. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/QM24S2202666.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x268013d09bbdeb39d816a9cc8e783d0e8c5ccc76d2d4fa14426e1e238cf5d2d5. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/QM24S2306079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaac0f6bdfe97f414cc87e4586d27421350d9b78913c234845b8c3f1e3fa719fa. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QM24S2205297.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecf73cb092e62a44e6dca9100747e08b662e47b7a706974e63bdecda04f16a30. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/QM24S2202694.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc317d054c45d975bd977fb4e604c6dbb4a9909d35a47dd3872a9627b252a6cfd. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QM24S2202666.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca610e55b311a8b19b46a537e97428d31c982c29516725984d18c3dff84970cf. 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/USRC12100494.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf13fdbd317000b45c9812c8149b17a4776aba31f5fb3096f9c9b6518c58439d. 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/USRC12003812.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf13fdbd317000b45c9812c8149b17a4776aba31f5fb3096f9c9b6518c58439d. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/USRC12003812.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63eac09af293f0a0e319f52a7f9b9b0e1022dd042b9e96568e9650a23d2f0ee5. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/USRC12000820.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x666f49c32ee639a1d22f54824d7979572fdc93b2618a4aa883267f5088bfc18d. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/USRC12003424.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5175a6c18d0f940ee19d2817f5307a4e8b481b3c2db3e3e65b7e3d3cf2391f2. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/USRC12002249.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4adee7acfed6c168ec5dfd01cb9901b16c625a1da5bbd80d6ca9f09994d64f63. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/USRC11903707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab7eff6b91e45395c05ae95532bda78f0b1000ecc19138aca87fe191458a6d8e. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/USRC11902816.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa8bc46102bfbb24a98c6e75f1a9b1892a3ca460ea3eeb00f00443057e6d1276. 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/USRC12004142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63eac09af293f0a0e319f52a7f9b9b0e1022dd042b9e96568e9650a23d2f0ee5. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USRC12000820.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3baa7e9eee44ebf3b55b779693fb23bc98cb954daf9cf243d4e1e0a46a8da24. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/USRC11902814.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05152d7ba5a6e9da4a99c690da0f4c0591b929081072e97329c92288996d1d05. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USRC11902812.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1963170d20281f49e71051ed38d2eaa9675e9f4630726afcc857d11eb7f1a968. 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/USRC11902813.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31f0ae1b3be1f5ed4eb1c172c56b166dc26de359d6954f16c7c175b8157d3976. 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/USRC11901515.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80c8dd376b2f4d53e93be85c87fbaa7f309a3ecef45b2b257af984a27ed2b0d8. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QM24S1904896.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf47d90cbcac8285e83b1a5ff3ba087cacaa476b0f7f64ca35a1b6c9a0dde9518. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/QM24S1845874.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50ad22d408c916a1f28e7ccef513b8eca9b685cdca514a744b33ddb6712f22c1. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QM24S1845029.