Marquise Knox (born February 8, 1991) is an American blues rock singer, guitarist, and songwriter. Knox has performed alongside B.B. King, Pinetop Perkins and David "Honeyboy" Edwards. He has also per
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 0x67a70a73bb3ffeaaa41d2f76818dc5c94ba1afa8f7b9cfdbc9aa217af453189a. Chain 2 (Bitcoin): anchored in block 953626 (2026-06-14T11:41:45Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2603a26e-46a1-4e04-b8fe-abf985b925cc.json and https://artists.proofprofile.net/proofs/artist/2603a26e-46a1-4e04-b8fe-abf985b925cc.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 0x440caf553b6008a2e5be8116732cf4b9e7fad3cea96622865d57459f47bf832f. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/QZ8GN1700003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4b42727708a0276662195350b86d39f91f2e96428610536468cea98fe80a2aa. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/QZ8GN1700011.
One More Reason to Have the Blues (Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb83ad6b9b1fbeb147fcbe0b3d8f4c1d3f18e85d14854a1f8b44d57b41c779d3. 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/QZ8GN1700013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71cf5606570d32f0e08664e94b2bd014173f1db10e0619a0c38b40a2947fb0d6. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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/QZ8GN1700004.
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 0x811de16aa5a7364454950dc92acb27dde28dbc05e3c94f5f0df564bf5f53a429. Chain 2 (Bitcoin): anchored in block 960489 (2026-08-01T00:40:43Z), 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/QZ8GN1700001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2b887827d714c2ec004dd2e62709764344df9b45e2cf2924eaa9a935683b83b. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/QZ8GN1700002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2066a77cdde0875e8cac0e55c01d1ecf68685e6719e1016fc408fbe05cb9b549. Chain 2 (Bitcoin): anchored in block 960296 (2026-07-30T19:11:09Z), 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/QZ8GN1700005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21aa509fef1960904ddf7215ecad15b7ec1bc1439af565fc94362e0c13b0f5e4. Chain 2 (Bitcoin): anchored in block 960300 (2026-07-30T19:42:40Z), 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/QZ8GN1700006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x337dc88faeb686efe02fede1c10888c570df77fba8d483e4db74ba62815bc840. Chain 2 (Bitcoin): anchored in block 960222 (2026-07-30T07:48:45Z), 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/QZ8GN1700007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbb4711f7f228447fc91a051c237f1d1565c93821b6f60ac7d0d67aceeeed7f3. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/QZ8GN1700008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64beb1b784e85909c1bb875674e6cb74a79d3f3ecd51a135deb00f768a44c8ee. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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/QZ8GN1700009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a47225d6feac97be824540eb2a04ed9648cc4731217b74fbfafa966cb6a89b2. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/QZ8GN1700010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61d80c336dd1cc9fae7dcbc37f4e9993822061d93ce26558c2d6158eab5e0099. Chain 2 (Bitcoin): anchored in block 960370 (2026-07-31T08:38:45Z), 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/QZ8GN1700012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2d66db7b135316bfb5d972ddb6db9fbeb5c3209edd9660cc59136f217529e43. 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/USA371389879.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd422a0a4a610f031adfc7a19db3c1a7e4c92036d4351a86038fca0b84e8494f. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/USA371389881.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd996b8ea9405234009c3ebd99ac903b9b8fae17e8b3f01b5d7f4f875cd4e1960. 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/USA371389882.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x900f17b906c9cb3ada9fe91ca20b00feca30d2a6188e0acaf4c4d0e70b83c264. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USA371389883.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d0f5768e7b6a16e0b8eecdb458d61acf97485862b29c2916658a0e3db236e9e. 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/USA371389886.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7b5d5d30a52100eb1147c4697b2ee344819d1ef06c0ef5e6b759da79176cfce. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/USA371389889.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ffe1da61bdef17aeaea7b628080b364f2a35814b2ad9012fd816c9e7ae47b7d. 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/USA371389890.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea2785263c2a4848bfc93c3ddf3143ceb87c0441dbba6e5263d43678a5f2fb33. Chain 2 (Bitcoin): anchored in block 960187 (2026-07-30T01:34:28Z), 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/USA371389880.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c045c60c607b1df95aa1c339eaf4cde7e416206b02e03dffbe81dd0a71fcd46. Chain 2 (Bitcoin): anchored in block 960145 (2026-07-29T21:13:37Z), 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/USA371389884.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd27e96350a9cd8b2af44cb8305c194a0125812746a1878c686a317dd606804eb. Chain 2 (Bitcoin): anchored in block 960314 (2026-07-30T21:00:46Z), 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/USA371389885.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0f296f9e75ed30f601a73c5cbef7afd3c197e3ae0e849d65fcc85be1a185d5d. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/USA371389887.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c75878135da433a40865ef21de4b662551a7fecff09deac1c3a628cd493ddc2. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/USA371389888.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74df9142b0ad4cbb43fc93c38007232afb3e048206fa64fb2a71071a60b82c7b. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/USA371003719.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69fec15d2de08d85d81b1157ab004195121fa4abba30dc3edec602f445d98987. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USA371003721.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83223971f660701e0a1eeb88aca090583b80f9b9b39dbbb1ed7f85dcdc093028. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/USA371003722.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb68729cfdca86043e9e88a8a11bdabf30f138884526641c8ed2b93e215e2f02e. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USA371003725.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa6167fda5594974de850f38835f12a6f3d2d23ce6760338c178b513d0f6fff1. Chain 2 (Bitcoin): anchored in block 960487 (2026-08-01T00:15:43Z), 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/USA371003716.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabced9f2d4269baa53e86ec06d7218230b9fe23a5c6c87b0588d32d3bce33750. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/USA371003717.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb848657673cd4e78b37efd80f8e38a99829befaf6c0dd6a83077c06cac1dd08. Chain 2 (Bitcoin): anchored in block 960497 (2026-08-01T02:22:04Z), 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/USA371003723.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96893c851871bd83c5e3e75b2e5c6504bd8229666c9505cbf0b9d69d4c307806. Chain 2 (Bitcoin): anchored in block 960481 (2026-07-31T23:51:35Z), 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/USA371003724.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9c26a21408779f0dc5b55f2c2983e1d81c06a77f433fcbdbb0f39c61ccb5c88. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/USA371003726.
St. Louis Blues Society Presents 15 in 15