Dezron Lamont Douglas is an American jazz double bassist, composer and producer. Biography Douglas was raised in Hartford, Connecticut and studied tuba and bass at the Hartford Conservatory of Music.
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 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 0x614f2e50fd7d7773b90b83b7934355c4d1d7cdc966d37d2148e2104d68362bee. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/79380c73-fe36-466e-a2b5-ce0eedc52bdf.json and https://artists.proofprofile.net/proofs/artist/79380c73-fe36-466e-a2b5-ce0eedc52bdf.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 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 0x0c93230b23f95afb577416c3e5802cecf2a2dda10ecc2d3b80aeef0d15a4cb2e. 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/QM84B2038003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0f8809c85547435ca77be5319d94467664fad050bc92b563380804ffda333ef. 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/QM84B2038005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc694b42b11a66b394d92d976c548f9183e162de79c943002bafbfbb196ec7323. Chain 2 (Bitcoin): anchored in block 957550 (2026-07-11T09:54:43Z), 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/QM84B2038006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bbe890301447f49ef00732afab1f8e97c77bbab37c1ad46ac65d77244416d67. Chain 2 (Bitcoin): anchored in block 958907 (2026-07-20T16:17:58Z), 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/QM84B2038011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f95b361321c5a22ad6c3ff2dabbe30f984b0fd0faec854227b0792856e1ea07. 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/QM84B2038014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04459a5d1f9b49cfc6fb7d6fd68661b563182d42a684e21d5ec67c83ce8f65fa. 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/QM84B1822001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x985eee32d97ebd5d8121c06a606d934ae2683f40da8be72b5fde33c19fdd0818. 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/QM84B1822002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bf1b49747617c53d2024aeba54fd511df011141a57ba0584abcfdc0f0eccd67. 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/QM84B1822003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19e7cc18768e89bb78c014ddd36e0add260f9c210dc682b9ca60a297028973c8. 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/QM84B1822004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5610dfbefb338ca05df48fbc4f51476d54c291e8c1dec3e92a085ead54156966. 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/QM84B1822005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ceb4e7c4ccdc6d962da2c5c206a9001b89bd63f552e234dc70d23a1e4bbecd3. 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/QM84B1822006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc558bcbf7a1232db2f8afa68578ab620f14f96ff17b6c3fd5dd2ee3c045286e6. 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/USZDB0810051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6fafa2a55f936adb2a9b73c7d525e235148056dfde06d391f528104aecd5c2e. 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/USZDB0810054.