Drew Tate (born October 8, 1984) is an American gridiron football coach and former player. He is the quarterbacks coach for the Ottawa Redblacks of the Canadian Football League (CFL). He played colleg
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 0x441417f4217c6fcb366c393afc58d4dca74e3d33f00748f33e163bf6b7ab05a2. 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/4acd876a-5abe-46b8-8184-84f4cbd5a1cd.json and https://artists.proofprofile.net/proofs/artist/4acd876a-5abe-46b8-8184-84f4cbd5a1cd.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 0x03c15121c72c3d996616dfa7ab85d314a379469b3b99073ab78973b15410939e. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T20:00:24Z), 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/QZTBD2341896.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fd5f29f7fa8e0645be944514d952010cd159c9ec58ff37559a1dc1199fb5b84. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T18:51:28Z), 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/QT3EX2489448.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f10c3cc317db0731f0bcac8d7e09d5c0f151b8b03d2bd34d6a028ce6c704538. 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/QZFZ62577798.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c56ee58050c0a09ac0dbbf715ffb0c57eb9447294f1f3701bab789dcef3ca09. Chain 2 (Bitcoin): anchored in block 956742 (2026-07-19T22:46:44Z), 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/QZFZ62580112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0d822ddb8ee293950f587715705f43680f65dde9bf7b1de4b9add3569eb05ed. 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/QZFZ62577797.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3c9d60f11aa9c0dab6610bb7ef42765563c22eb19dac63d9d4b85b70eb3947c. 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/QZDA62515597.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0dcfdcbff76aaa1a77e169219fc84b60ae83f65c0381a47bceb73d36124b3c6f. 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/QZES72529712.