Jörg Breiding (born 1972) is a German choral conductor and academic teacher. He has been the conductor of the Knabenchor Hannover since 2002. He taught at the Musikhochschule Lübeck, and has been prof
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 0xb1ecb85eecd6f505c0cd18a3b874b4cb14dc4c34928aa35d76c7967740429b6c. Chain 2 (Bitcoin): anchored in block 953697 (2026-06-14T21:49:28Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7244956e-4bef-40c1-8069-887d4f7d6204.json and https://artists.proofprofile.net/proofs/artist/7244956e-4bef-40c1-8069-887d4f7d6204.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Harald Weiss: Requiem (Schwarz vor Augen und es ward Licht!)
Claudio Monteverdi: Vespro della Beata Vergine (Marienvesper)
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 0x574e68b47f5a09db482f8b4250239d761e52e71b84ec2e68a8eaeee31ad3634c. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/DEN421113001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8daed03c72f49b6e52b2b1801b2612406546da966e30925199550539598107ae. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/DEN421113003.
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
Sacred Vocal Music from Wolfenbüttel (Verklingend und ewig)
Andreas Hammerschmidt: Verleih uns Frieden (Geistliche Vokalmusik)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd77ddb6ac3c085d33dd037a169ed5f1fe6ea54744a0b296b653b0ec06fd980df. 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/DEN420502006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf93b20dbdd8afc4ebbb42d55894386f6da685f51ec8e57cee80b12e7376aafd5. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/DEN420502007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1080e31841d5faa48ba98ece59ceb40d6392c97b83cfa04b35c2d852fc2956fa. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/DEN420502001.
Glaubenslieder: Neue Kantaten zum Kirchenjahr
Knabenchor Hannover: Christmas Around the World
Knabenchor Hannover: Michaelisvesper mit Werken von Michael Praetorius
Es waren zwei Königskinder (Arr. A. Tarkmann for Choir)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fba232f0c8b71c6df47d2d734c32a7a6da0c8c4aa240e0e5ce23289024492ad. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/DEB111904204.
Kein schöner Land (Arr. A. Tarkmann for Choir & Brass Ensemble)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x442693a3bbe988c777183d53e556f218b89214516fbe5c296cdeb4a965c2fe8a. Chain 2 (Bitcoin): anchored in block 960370 (2026-07-31T08:38:45Z), 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/DEB111904201.
Gute Nacht, gute Ruh - Guter Mond, du gehst so stille - Verstohlen geht der Mond auf - Abend wird es wieder - Ade zur guten Nacht - Wiegenlied, Op. 49 No. 4 - Der Mond ist aufgegangen (Arr. A
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2028f5a1554ec3705eefa58d9d97bdf3ec8a72576e2f3cef73fa149560301570. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/DEB111904210.
Volkslieder für Knabenchor und Blechbläserquintett (Liederprojekt)
Knabenchor Hannover & London Brass: Christmas Carols (British Music for the Festive Season)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc769b056c8f3e8d68ed8a26181860d39e9d63866dc330ba13808fcfef0d9cbe. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/DEN421419015.
Johann Sebastian Bach: Markus-Passion BWV 247
Markus-Passion BWV 247: Chor: Geh, Jesu, geh zu deiner Pein!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9569c79d7a62bb74df029083f813e2c8be27639e54785a7ba5f6171f3b63b1da. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/DEN421402001.
Markus-Passion BWV 247: Rezitativ: Und nach zween Tagen war Ostern - Chor: Ja nicht auf das Fest - Rezitativ: Und da er in Bethanien war - ...
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57ca59441752dff78be254167fc4c908d70b8ffc928fda0537648aedf84bec19. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/DEN421402002.
Markus-Passion BWV 247: Choral: Jesu, ohne Missetat
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc992a0955f5e7a2431b3c635336ab8b2d74d9144c757fe70c6eb89124a2155e9. 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/DEN421402021.
Siegfried Strohbach: Weihnachten mit dem Knabenchor Hannover (Gloria in Excelsis Deo)
Knabenchor Hannover: Portrait (Works by Claudio Monteverdi, Heinrich Schütz, Dietrich Buxtehude, Johann Sebastian Bach, Felix Mendelssohn Bartholdy, John Rutter)
Motetten, Op. 78 No. 1-3: Richte mich Gott
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2680065485fd4e86617f12274930ac7d35d672f8409e7d0484f86574da6986c. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/DEN421209004.
Dietrich Buxtehude: Membra Jesu Nostri (BUXWV 75)
Christmas Around the World: Winter Wonderland
Christmas Around the World: Joy to the World
Christmas around the World: Stille Nacht, heilige Nacht
Christmas around the World: Maria durch ein Dornwald ging
Christmas around the World: Als ich bei meinen Schafen wacht
Johann Rosenmüller: Marienvesper - Magnificat
Johann Rosenmüller: Marienvesper - Lauda Ierusalem
Engelbert Humperdinck: Deutsches Kinder-Liederbuch