The Urban Knights are an American all-star jazz fusion band. They released their self-titled debut in 1995. They have a total of 8 studio albums. Overview The Urban Knight's debut album, Urban Knight
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 0xa87b7642cc475f339df87d986aea9b45c54421127dc95281d6a8cf56c879d9e8. 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/f29f6f4d-e15b-4119-aa76-c6a00ff993ad.json and https://artists.proofprofile.net/proofs/artist/f29f6f4d-e15b-4119-aa76-c6a00ff993ad.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 0x319fcc37beb20506f65731f4d7c6b6fbe72d008ef983232621a75b34dfb7f888. 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/USGR19900376.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x073f127082211a2876d426d72976bba9f4cf53eabf98803d7c3e35c0e89036d9. 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/USGR19900380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x295642fc8979dfa72ae0a20e88f4b057442f5ffe323f78f46e9316b68faf2e05. 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/USGR19700013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ef351da7e899401dfd00c83e09cb97ebc578564c37516fb4819141fa462f636. Chain 2 (Bitcoin): anchored in block 958547 (2026-07-18T12:44:05Z), 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/USNA19916962.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e693970c8d77137b0429a8f507c9d906282367102f7d32e4f53f310ba7fb7ef. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T00:27:37Z), 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/USNA19916963.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96676fd3b19b95a30a9946e27eb0a5b61cef1b0cf49c109ccfcb6ec051c57174. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T20:05:30Z), 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/USNA19916969.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cbdee86ddbcfcee81295987b486b0ea4f59049b2b9e4c393966dd43d17693ac. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T20:47:42Z), 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/USNA19916971.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x616cef58d38507504547d73f6887f2f2753ba5c0f54402162f6f8554ff43af67. 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/USNA10118045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd971022ade6d3867e49a1591db3d296e5e7b79592e88ad5ac21fbd84576549a2. 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/USNA10319566.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x385955305f3fca6471ecd595e93102d08dcc133e22bdcfa48369611b56ef0543. Chain 2 (Bitcoin): anchored in block 957759 (2026-07-12T21:46:51Z), 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/USNA10520572.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x288d41bb4e2dbbe2681b10cecfb2d616e517b3d032b327406374f48daa66e988. 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/USNA19916967.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e5f293032951854e3f76dd9ec69237a46f426f6f463bd27a9e414b4f4a5aa3a. Chain 2 (Bitcoin): anchored in block 957020 (2026-07-07T09:18:01Z), 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/USNA10118057.
Narada Guitar 2 (The Best Of Two Decades)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1135df48abe0ca390a8f5cc3e9d168f2e7b7fd56de5c6d6ed47d88fc6f9cf48a. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/USNA19916965.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a51bb8b4c105d01ccae37b3a4d8a0bb3a5b83ee76a2f48612d2c473804050df. Chain 2 (Bitcoin): anchored in block 960506 (2026-08-01T03:50:58Z), 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/USGR19900378.
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