John Mitchinson may refer to John Mitchinson (bishop) (1833–1918), English-born Bishop of Barbados John Mitchinson (researcher), head of research for the British TV quiz QI John Mitchinson (tenor)
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 0x4971758dd2a5d458f5b142694b75017332493aaaa6449ff1eea950518e5decff. Chain 2 (Bitcoin): anchored in block 953648 (2026-06-14T15:20:52Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/45ff086c-eea8-4a1e-a31e-29e03bd11b50.json and https://artists.proofprofile.net/proofs/artist/45ff086c-eea8-4a1e-a31e-29e03bd11b50.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Tristan und Isolde, WWV 90 / Act 3: Mild und leise wie er lächelt (Isoldes Liebestod)
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 0x844fd8b57928abd9e478bbf1a6551c91d184518774177491daa773cc15d13aa8. 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/GBF078041432.
Symphony No. 8 in E-Flat Major "Symphony of a Thousand": Alles Vergängliche (Chorus mysticus)
Mahler: Symphony No. 8 in E-Flat Major "Symphony of a Thousand"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67b5b03669579eafe99eaf11a8b09a666d2fc475a251d60ca9e5ef70d3809391. 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/USSM16601192.
Symphony No. 8 in E-Flat Major "Symphony of a Thousand": Imple superna gratia
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08166a03882969f412cc56b48645ad2267dddd905bad60d476977c4e76188153. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/USSM16601162.
Symphony No. 8 in E-Flat Major "Symphony of a Thousand": Infirma nostri corporis
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57326d1a53f7264032aba30ea0277b97ae7d1b5aa2cb49bdbc23f24a87f1be75. Chain 2 (Bitcoin): anchored in block 960167 (2026-07-29T23:42:34Z), 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/USSM16601163.
Symphony No. 8 in E-Flat Major "Symphony of a Thousand": Accende lumen sensibus
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8fa8ceb87de0c494c72acd869079175a48a9d7e0f16f4d7b9e066814343518c. Chain 2 (Bitcoin): anchored in block 960200 (2026-07-30T02:37:10Z), 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/USSM16601166.
Symphony No. 8 in E-Flat Major "Symphony of a Thousand": Infirma nostri corporis virtute firmans perpeti
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38290864aa66534399fdbe855da5a393bfb673f695313f4c50df27beb7018351. Chain 2 (Bitcoin): anchored in block 960108 (2026-07-29T13:09:35Z), 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/USSM16601165.
Symphony No. 8 in E-Flat Major "Symphony of a Thousand": Qui Paraclitus diceris
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd52055f52c6c32d90983f7a69f62a877de9b187f92734527efe31a238da041ea. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/USSM16601167.
Symphony No. 8 in E-Flat Major "Symphony of a Thousand": Gloria Patri Domino
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed075f0cd91da259f50bd00b774a2b884c3baec3520ba5034136fde57113f2de. Chain 2 (Bitcoin): anchored in block 960125 (2026-07-29T15:38:18Z), 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/USSM16601168.
Symphony No. 8 in E-Flat Major "Symphony of a Thousand": Blicket auf zum Retterblick (Doctor Marianus)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89e599087dac5816c876872f67f03a10c4f1c94c9ab17df63d714b75839877fa. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/USSM16601191.
Symphony No. 8 in E-Flat Major "Symphony of a Thousand": Hier ist die Aussicht frei (Doctor Marianus) - Freudig empfangen wir (Chor seliger Knaben)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e08afdbfdc3e96885afeb56f0e3990eda8a711b9ed1d09e4f1895542f3399f8. 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/USSM16601178.
Symphony No. 8 in E-Flat Major "Symphony of a Thousand": Höchste Herrscherin der Welt (Doctor Marianus)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f050ece9be6b9ab2009635d4f214304df32c299142b16526e1a6c2c6972a666. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/USSM16601179.
Symphony No. 8 in E-Flat Major "Symphony of a Thousand": Jungfrau, rein im schönsten Sinne (Doctor Marianus und Chor)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x173d926cf104039ff6a4311199dc6397d7ecbed374408dbf086b75ba5774d438. Chain 2 (Bitcoin): anchored in block 960277 (2026-07-30T16:10:47Z), 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/USSM16601180.