Jeremy Blake (October 4, 1971 – July 17, 2007) was an American digital artist and painter. His work included projected DVD installations, Type C prints, and collaborative film projects. Education an
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 0x97d5e067f98d096a3236b0ded30cbf94d4a3ca322b3f7b2496ed509fcac606c8. 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/d4938100-8da2-4143-b23a-49bfb01e63d8.json and https://artists.proofprofile.net/proofs/artist/d4938100-8da2-4143-b23a-49bfb01e63d8.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 0x12840f370f9c9e29c171fa464729671b4283c74bdb8a013efe3003f74bcb1924. 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/QZTB62359346.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe25ee31026d4cdf846bd1bb60f47029f9b85e2bfbdda8f09e022a3ea73ad97d0. 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/QZTB62359348.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x960558acdbda8695d252d9a7ee0f1917b62d1c4532d45abe58f97da31bb8b14a. 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/QZTB62359349.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3cced0effdea442ab60f7326f1ec3a58a8a25d9e577e3934a23098c6f99a034. 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/QZTB62359351.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad5c40386d14c55191d46f656190d4c9117d623316cd9930619bf13acdd7d391. 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/QZTB62359353.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f05d9eaf6609b181ad31e654b1cfb5f35e17e663f843e757e7f87b908c7378f. 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/QZTB62359355.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e1d3c52bef8fb14b2de3c014967353e0cabf47709542aee28a9a9985350ba58. 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/QZTB62378089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02f8fbec28d7d096f3da247c671ad9ac21b4350495d908f32d71a1c4a35e2d3e. 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/QZTB62378091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca9418b350b2e0d7e4ed6b5b3088f1de5f74b2899113a530e39a250af257979a. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/QZTB62360019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca6028fa6bd6c8279a2a5c8c37ae378cd308527676121239fafb6f8bb04261e1. 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/QZTB62360020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae9ff0c91613181974e64d473202521da143fb32b427149e873c7298dd38c613. 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/QZTB62360022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82eb3108adbf0070d1ac5178d51cb2251fd21ccad6c344bd1620d7703aee12a2. Chain 2 (Bitcoin): anchored in block 959132 (2026-07-22T13:20:46Z), 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/QZTB62360023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6faea2cc678f7d4e54aa9b45c28c188728548bc4589921e0592ce1fe7f7c3c53. 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/QZTB62360026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x925611426de04f411af1f36522b72a2120c9c3e4143ef8736083db0ad38945ca. 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/QZTB62360027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd1fe6d3831cf472fcda8ae1e7b1a1ffc888d311fb0e9c142199cb94469a3085. 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/QZTB62360028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7cf8a79fdb2655d02a9011ae1653f84483e0ff75aeb5cfb30205f492c25b602. 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/QZTB62375910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4689cbe6880fc34d5605b73b3df1aa9b6bb466b728330b8183c346d9b27f8908. 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/QZTB62375914.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4c630dea6496d98fa59141403a70f69d07db3fbf07ac11fe47f47e0e7f597c6. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/QZTB62375916.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f7adde7e573e74455ccd5f720a94fadd910f884e9f66f56915abe110cf2c05a. 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/QZTB62375917.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6877866ff7b4ce6a1c95cef23c3d85672b3a2b030055d4e0d7c0eef36fd230d1. 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/QZES71935454.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72fd4e4731b240d323ce5aaf03d16a14e8cb3e500662125db75e24be2e74c5c0. 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/QZES81872847.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74d732932876331d382c13abddd728ed4b6838e8c9d22c2fb86c7fa5282a742a. 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/QZANL1761673.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed6b021072710e9c1452aa89ab00a1271db84952de6b97e7b652a4f3b5a48637. 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/QZES61878389.