Knower, also stylized as KNOWER, is an American independent electronic jazz-funk duo. The group primarily consists of Louis Cole (bass, drums, guitars, keyboards, vocals) and Genevieve Artadi (bass, k
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 0xbf5623af6d20203fa92c2519b01f50cb6b0d318eb72df91348f29d7de5c7c312. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/61a4b63c-8752-4595-9a36-a0294aa295f0.json and https://artists.proofprofile.net/proofs/artist/61a4b63c-8752-4595-9a36-a0294aa295f0.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 0x6cbba03bf5e2f17184a62f102115ee19db7f60668918bd304c2d55972b22522c. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/TCAAS1001897.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa167adae4348a32faaf3fd199a44ee635dfaaf7a339f16c75dd127b1e384ebd7. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/TCAAS1001911.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a4fe9c9fba7aaece8137fc623f7aba870cb0bf40a3ee37421e50695b35f7a97. 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/TCAAS1001917.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5331145b5135c9511d1c3e77b70e2f6e017e3990e1205fb4db8af8e9e0617120. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T05:30:44Z), 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/TCAAS1001918.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c3790ad8307fd382ee2062f84966f72456dc7703cfeccba2381765137862959. 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/TCAAS1001919.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99dd8b11edf97e3e47b3b0f13797273ea5e32c1208f3bbc4490e88fa44c15b88. 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/TCABC1139507.
Paying The Price Now (feat. Tim Lefebvre)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdde196c45d657204f3b7a79bbdf955e5345c8f20405f9bbf49ecfe94a7f3d604. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/TCABC1139509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7812b158c9028fbc94486433e96b3b54f6e18d9348b408257f1626492955baaa. 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/TCABC1139511.
What Did I Do To You (feat. John Escreet & Aya Toyoshima)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc753fcfb102bb9523992baa5b17f30aebda09f0385379c5409635572be10915. 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/TCABC1139513.
Here Comes The Big One (feat. David Binney)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64c8ff92dd367bb5392a8968f4faab1b157aeacee1fbaecaa390aebb373a09a6. 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/TCABC1139515.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ae2b82bcca315105f37f5e066449be3f1c4ca54391d1f2c7c39b5c5843bc2c8. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-16T02:13:05Z), 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/TCABC1139516.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5500bbc014ee31a475375404412623b7fdf396291dd4884b30eca6441cdbdad5. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/TCABC1139518.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd16a2a6d36a83d967274ef5facfb4b1c19dea709d2bf727fb67be33b2bd317cc. 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/TCABC1139520.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e7f2c107c8df52c12561bb9d0069326bf0bb8c37dae90d229dafd52b63f70a3. Chain 2 (Bitcoin): anchored in block 958907 (2026-07-20T18:41:26Z), 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/TCABC1139522.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f1de028a67d31b132024ec8aa2f034d8b91549ecd64c9129401879742ebe069. 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/TCABN1340821.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4af77c86367fd2187c4248bcec3bf94583b724e455ea967cf838521b6bee9cb1. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T19:55:33Z), 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/TCABN1340822.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2595f98f7dcdb107a327b22167ddb0f5ca40e24e56e59bed4e47bd4a608706aa. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/TCABN1340823.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95e85ab6be6fc2a01d1c3e5eb7fce006cbd38863a259e9ae9a1db4cf8dfcdbe4. Chain 2 (Bitcoin): anchored in block 957874 (2026-07-13T15:43:57Z), 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/TCABN1340824.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x773d161c3cfa250eea8ba498b8fef88277c3ed744caa18e8004759ea86aaabdf. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T06:43:24Z), 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/TCABN1340826.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e695928684fae3e19136223cf224ee71626370bccb8fc9193f718452fb46b36. 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/TCACL1630230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3e234b6a3c484b7058c0de4972c70bf0e77cbdb9e5f6c025dcb20bc1f548d74. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/TCACL1630239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08f66e77a00a63439eee271e041e394e5ea8f7f1c6d74c1aec4bd0c99e5a59e1. 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/TCACL1630244.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaab4f32ddf845d3defb56bc9aff2a9fff83472cd7175efb1a1ef0e223fb237a2. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T20:38:50Z), 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/QZHNC2330771.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6239368dca16bcff807d66562074180491ac1057232e25b65c73af9a270bd99. Chain 2 (Bitcoin): anchored in block 958432 (2026-07-17T15:43:17Z), 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/QZHNC2330761.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f6b9351add70d140c98faba37d01174b68ec72443ab304c3b443086f0ae754c. Chain 2 (Bitcoin): anchored in block 956748 (2026-07-05T05:55:59Z), 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/QZHNC2330770.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x420c3ae67c33672177b1f9849ffc1dece4d856b29364034002b8bcc35bdc9885. 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/QZTAS2363414.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa867aa677c166f9403598c08448690618d08b0a0971aefbb5273841afb810a68. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-20T01:33:40Z), 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/QZTAS2363416.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b96d1b4e46f5d891035c46458234438d7391c0ccc3ddf26d1d89a1e0085d84f. Chain 2 (Bitcoin): anchored in block 958842 (2026-07-20T10:08:43Z), 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/QZTAS2363418.