John Abraham Fisher (1744 – May or June 1806) was an English violinist and composer. Biography Fisher was born at Dunstable in 1744, the son of Richard Fisher. He was brought up in Lord Tyrawley's h
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 0x55986a39d9d138ed62d75238f523a09a46237614b644bf481b0f0281e1dda141. Chain 2 (Bitcoin): anchored in block 954593 (2026-06-20T19:46:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/bea48e87-64b8-44ef-bc8d-174912389b83.json and https://artists.proofprofile.net/proofs/artist/bea48e87-64b8-44ef-bc8d-174912389b83.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Symphony No. 1 in E Major: II. Andantino
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 0xde6f1fd91cc697039724b419cfed98172a679a9131fc9a85de0b6c9b5024fc61. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T02:27:21Z), 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/HKI192025802.
Symphony No. 5 in D Major: I. Allegro con molto spirito
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b93e35c2a61d5ce3967fcf0f09b61e9727a0aae137f3278601244fab485b450. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/HKI192025813.