Dornik Leigh (born 2 January 1990 in Croydon, London, England) is a British musician. Career Dornik started off being a ghostwriter for Odd Future and Syd Tha Kyd. He later was credited as producer a
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 0x1961348eddb928c96f9b233f00134dbfb432a53e4b46c0ec32f6b3ed0b68c4bd. 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/5f42a0b1-c29b-4f4c-a202-ed18396d52e7.json and https://artists.proofprofile.net/proofs/artist/5f42a0b1-c29b-4f4c-a202-ed18396d52e7.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 0x1117088ba5b715d93ec9ce1dde9fb48d397135b9ac3d474f1356cf76fc993590. 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/GBUM71505175.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c17c2b2f947592f3f78bc8c5e6bf1fab3b9ed2956b157ac141b9843a098efbd. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T15:22:58Z), 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/GBUM71404949.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x646c059b2d1ad93fafe7e2a83ab46b1b32bc09a5615781f44dc54c1aeda23da8. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/GBUM71501409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf76ea7c427c1709a55c28bb9ab12f45ceec6550d4f914f57033633f77c65171d. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/GBUM71501208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0874a65de91cd0077152999d7e973efc4a13c3ea8b304a56f785a5d3f31bd9c. 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/GBUM71501407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda6af26be19fe84149fc2e12e4a4cda3bd9eb14b8bb5d774828938dc1b5c77e9. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/GBUM71501616.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59fbe76a3cbce271d029ef4e3b9a1871d9d49d80afde4b67b66a6986b00ace95. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/GBUM71501185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x433ef3fc57d3c532798640d4cbc49fdc386d1114d993ec421ace4502c8ebf359. 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/GBUM71501571.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57432b062d7be12c6e6de07dd4392c1e9345ff50d14a11398cf10c51cdfa7ec7. 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/GBUM71501573.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82ec11cb250b779b5a101d1a24e3dc7897042839f2866ebe145d582f20cb9248. 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/GBUM71505475.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacf7a7cad480796e5f68c81ab7c3c31ef646e42560995f389a48a29a5ff2acf0. Chain 2 (Bitcoin): anchored in block 958420 (2026-07-17T13:33:01Z), 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/QZFZ32044504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40093a1ed3452b949175d9c63bcf6e18b110d830214fc092563bd5b7666ca6cb. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/QZHN61908822.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a9f105e904caad6522ed267e91f890de2c286037f2f45e479eaf9e24bc5ffd0. Chain 2 (Bitcoin): anchored in block 959073 (2026-07-21T23:25:37Z), 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/GBKPL2099726.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba4840c54f3fb8d2416678450e75283555838bf9e4aac723e6efb680208a2f01. 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/QZSYP2334883.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab19ccd00a637e150cedf4be9ebc885f7b69830499dec886d418ad4c4654ab2a. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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/GB7GV1651001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc44f1c85d933d9446dd59e2facfaeeea0713b2180c925d468ebf728e26bf7f7. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/GBUM71507740.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba4840c54f3fb8d2416678450e75283555838bf9e4aac723e6efb680208a2f01. 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/QZSYP2334883.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8852ac8d53fe4631154c7d38dc9632a2973d30623809be972bd56a88e5d6950. 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/US9FL1600008.