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 0xa6a8fa06b98d6a69be56d47c16b2d83ec04784fe592f31875eca942412128396. Chain 2 (Bitcoin): anchored in block 953949 (2026-06-16T13:28:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0f96476f-235c-48ae-b08c-9a48f2b3c376.json and https://artists.proofprofile.net/proofs/artist/0f96476f-235c-48ae-b08c-9a48f2b3c376.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Dussek: Complete Piano Sonatas Vol. 8 Sonatinas
Wolfgang Amadeus Mozart: Schatten ung licht: Chapter 2: Salzburgs Glanz und Wolfgangs Gloria (1765-1769)
Südwestdeutsches Kammerorchester Pforzheim
Carl Philipp Emanuel Bach Chamber Orchestra
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 0x4ffd144f0024c8fb524119b09ff493b81cebf3614558c5abb8a99dc3ab590847. 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/DELW71490602.
Wolfgang Amadeus Mozart: Schatten ung licht: Chapter 1: Wunder der Natur (1756-1765)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fd0664db01e71764b7d7d355a6d08d929fb6af5f26911c4e56761ab1acacd20. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/DELW71490601.
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
12 Audiobiographies of Great Composers By Jörg Handstein (in German)
James Galway Plays Bach: Suite No. 2 & Concerto for Flute, Violin and Harpsichord
Concerto for Flute, Violin, Harpsichord, Strings and Continuo in A Minor, BWV 1044: II. Adagio, ma non tanto e dolce
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd3d721f642b8f96a8debf6d8040036ffca601817c6dd6fce8cb213fb7e70384. 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/USBC19100346.
Beethoven: Intégrale des sonates pour piano sur instruments d'époque: Volume I
Beethoven: Intégrale des sonates pour piano sur instruments d'époque: Volume II
Claude Bénigne Balbastre: Pieces De Clavecin. Premier Livre
Joseph Bodin de Boismortier: Six Sonates, Op. 91
Beethoven: Four Piano Sonatas on Period Instruments
Gerhard: Concerto for Harpsichord, String Orchestra and Percussion - Nonet & Concerto for Piano and Strings
A Choice Collection of Dances: Music for Baroque Dances at Court and Theatre