1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 artist was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66e91181205f31533fa528c9fee22c14cb5915b8b146e0960f761c9dd7a7dfc0. Chain 2 (Bitcoin): anchored in block 953742 (2026-06-15T04:47:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/900beca1-8c12-41ff-9c3e-38de2cf94976.json and https://artists.proofprofile.net/proofs/artist/900beca1-8c12-41ff-9c3e-38de2cf94976.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
John Hyde: A New and Complete Preceptor for the Trumpet and Bugle Horn
Marches and Quick Steps for Three Trumpets: I. First March
Marches and Quick Steps for Three Trumpets: II. Second March
Marches and Quick Steps for Three Trumpets: III. Third March
Marches and Quick Steps for Three Trumpets: IV. Fourth March
Marches and Quick Steps for Three Trumpets: V. Fifth March
Marches and Quick Steps for Three Trumpets: VI. Sixth March
Marches and Quick Steps for Three Trumpets: VII. Seventh March
Marches and Quick Steps for Three Trumpets: VIII. Eighth March
Marches and Quick Steps for Three Trumpets: IX. Ninth March
Marches and Quick Steps for Three Trumpets: X. Tenth March
Marches and Quick Steps for Three Trumpets: XI. Eleventh March
Marches and Quick Steps for Three Trumpets: XII. Twelth March
Marches and Quick Steps for Three Trumpets: XIII. Thirteenth March
Marches and Quick Steps for Three Trumpets: XIV. Fourteenth March
Marches and Quick Steps for Three Trumpets: XV. Installation March
Duetts for Two Bugle Horns: I. First Duet
Duetts for Two Bugle Horns: II. Second Duet
Duetts for Two Bugle Horns: III. Third Duet
Duetts for Two Bugle Horns: IV. Fourth Duet
Duetts for Two Bugle Horns: V. Fifth Duet
Duetts for Two Bugle Horns: VI. Sixth Duet
Duetts for Two Bugle Horns: VII. Quick March
Duetts for Two Bugle Horns: VIII. Quick March
Duetts for Two Bugle Horns: IX. Quick March for Four Bugle Horns
Duetts for Two Bugle Horns: X. Quick March
Duets for Two Bugle Horns: XI. Quick March
Duetts for Two Bugle Horns: XIII. Quick March
Drink Only of Thine Eyes for Two Trumpets
How Great Is Thy Pleasure for Three Trumpets
Trumpet Duty: XIV. First Setting of the Watch
Trumpet Duty: XV. Second Setting the Watch