Christopher Middleton may refer to: Christopher Middleton (d. 1628) (1560–1628), English translator and poet Christopher Middleton (poet) (1926–2015), British poet Christopher Middleton (navigator) (
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 0xac64db31be9d3e578c29c69735bbf51a5b6b4d4946d82206e5244038f92c70da. Chain 2 (Bitcoin): anchored in block 954569 (2026-06-20T14:36:29Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b3ed46dc-74a7-4ddd-84fb-7a84bde2e76f.json and https://artists.proofprofile.net/proofs/artist/b3ed46dc-74a7-4ddd-84fb-7a84bde2e76f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Violin Concerto No. 1 in A minor, BWV 1041: 1. (Allegro moderato)
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 0xa6a169ddbf810e83142591477824e1888c17bcb30841a2b9f4a0f0aa80544f9e. 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/NLA508532807.
Violin Concerto No. 1 in A minor, BWV 1041: 2. Andante
J.S.Bach:Violinkonzerte BWV 1041-1043; BWV 1060
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x280a30894e1e6f30eb260e5e567c3560ac61c919262e2bc2a5fc94c63173108a. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/NLA508532808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x280a30894e1e6f30eb260e5e567c3560ac61c919262e2bc2a5fc94c63173108a. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/NLA508532808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6a169ddbf810e83142591477824e1888c17bcb30841a2b9f4a0f0aa80544f9e. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/NLA508532807.