Field Marshal Sir John Michel (1 September 1804 – 23 May 1886) was a British Army officer. He commanded the 6th Regiment of Foot during the Eighth Xhosa War in 1851 and served as Chief of Staff of th
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 0xfacae120abf5e5d5bf8a54f1686ddae3e0dbe2c8d180708e1c3379d7a6fd8a02. 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/ac566f20-d8fb-4223-baf9-321b79c5662e.json and https://artists.proofprofile.net/proofs/artist/ac566f20-d8fb-4223-baf9-321b79c5662e.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 0x6658a48e7e33a5f7a7c76f5f8c2cd9dff09ad789ced8314272e609134754dbdc. 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/SE5BU2387218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0577c0182d984621dd0dc0c5114ec32b3ab6fadd33513f82c8ff99c5a658d89a. 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/SE62M2226329.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bfa4c009bc914f09258766e4fa0cfbf95bbdaa12028c235e5f2df2aedbe176e. 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/SE5BU2387219.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7667eb1727a89663e6b4631dd8b184c19cdb005b4804dc6ecbb8c9f67046aaa2. 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/SE5BU2387220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3758321f94db227d660d69d8a55a6e48719e2f6938f887eba093ec16451ed0e1. Chain 2 (Bitcoin): anchored in block 960198 (2026-07-30T02:21:55Z), 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/SE5BU2387221.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf847232b4e92fde256ff94732cbb3ae0322e2037e09ae887a5571d37b347fb9a. 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/SE62M2222138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95d1985e406516b00f205ccfe6d26aa3e1e11fac532e23655e96bbca5a43ed8b. 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/SE5BU2387222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00d956869fd65ed93ea0bd28ac7725bdb67b458e8e4df10f3d60cb1375b4b96a. Chain 2 (Bitcoin): anchored in block 960105 (2026-07-29T12:35:17Z), 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/SE5BU2387223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7e4209453dc5a8d2ca3aea2f9d4810074eb3e5d7c541a312e32cb6b991d26e6. 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/SE5752445309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07a86b60927f7fc1a2086224758389ee9306a34046169f8693d089151f310709. Chain 2 (Bitcoin): anchored in block 957785 (2026-07-13T01:55:31Z), 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/QZNWV2558068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0be7e8b519373b595612db9e881271b0e895d1c65cc36e59afeba62eab7451f1. Chain 2 (Bitcoin): anchored in block 957782 (2026-07-13T00:52:48Z), 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/QZNWV2558069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c319b5abfac37ddf1f20b6024dd0e81f74924268cb66723769a5fe7aa07b390. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/QZNWV2558072.