Brandenburgisches Staatsorchester Frankfurt
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 0xf058d4afea730b169fec945d34a84fdcb9fbae18aef9ca08eec16576546089ba. Chain 2 (Bitcoin): anchored in block 953694 (2026-06-14T21:38:09Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/70f17f55-81c8-4473-9861-414191c00e32.json and https://artists.proofprofile.net/proofs/artist/70f17f55-81c8-4473-9861-414191c00e32.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
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 0x09a3674d3d742bf2be823b29cc09f632c0d1bdff788ee9e6444732b618a63f09. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB909500412 — a six-check JSON result.
Howard Griffiths: Dmitri Shostakovich, Jazz Suite No 2
Jazz Suite No 2 (Suite für Varieté Orchester): 2. Tanz
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfd7543883d4e3df1284ed6288d34a5d4170ca134ab8268c377c3634eed8e39c. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEN421816002 — a six-check JSON result.
Jazz Suite No 2 (Suite für Varieté Orchester): 3. Tanz
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7373038a39b7e81112ffc48559e1e59f1f75c57a4841e0f51305afa776eddf88. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEN421816003 — a six-check JSON result.
Jazz Suite No 2 (Suite für Varieté Orchester): 5. Lyrischer Walzer
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xceaa6e8bc7a550f5dfb59de71ab9c21b38a226fd1b7ab8c6abbcebfa056f5c41. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEN421816005 — a six-check JSON result.
Jazz Suite No 2 (Suite für Varieté Orchester): 6. Walzer
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ba78296d6dfab23d1ea49025dd132817ad7e9e4d82f6104595a9033be115360. Chain 2 (Bitcoin): anchored in block 957820 (2026-07-13T07:54:01Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEN421816006 — a six-check JSON result.
Jazz Suite No 2 (Suite für Varieté Orchester): 7. Walzer
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5f6659f15399f689733023ea5b4329aa4f11de709a07d115645998ad6b8a1da. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEN421816007 — a six-check JSON result.
Jazz Suite No 2 (Suite für Varieté Orchester): 8. Finale
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f410c708a918709f00c649cb9337f57cc8fd62a50225e09690d4e5c7e84c5ca. Chain 2 (Bitcoin): anchored in block 960362 (2026-07-31T06:58:00Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEN421816008 — a six-check JSON result.
Moscheles: Piano Concerto No. 6 - Symphony in C major
Schreker, Rathaus, Krenek & Others: Works
O Mensch, bewein dein Sünde groß, BWV 622 (Arr. M. Reger for Orchestra)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc87fb9339736ef3c831c8b86a1b218454ff0bf8267582ab7dad36388014cb9b. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI191901502 — a six-check JSON result.
Die Regentrude: Der Weg zum Regenbrunnen
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71e3a0b25150fd2db3de41bbb5cd85d17d6706558572d183bd87ce00a67a7a9a. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEN421815017 — a six-check JSON result.
Adler: One Lives but Once. A 90th Birthday Celebration
Howard Griffiths: Music from the Motion Pictures
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa79f7aa4c974d51f3032cc782b75fc60cf648a520d563dd9c437398227a3feb8. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEN421609014 — a six-check JSON result.
Sinfonie No. 3 F-Dur, Op. 90: 3. Poco allegretto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb168e81ce9937f1114ecc1e99d9befe1483894034ad266e087e9479114ac2b07. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEN421607003 — a six-check JSON result.
Howard Griffiths: Ohne Sorgen - Happy go lucky
Peer Gynt Suite No. 1, Op. 46: In der Halle des Bergkönigs
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x529375a8a97cb0e195007fa17134c2bc21fdfbee49e933a4713bb98da1ea4757. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEN421522004 — a six-check JSON result.
Pejačević: Piano Concerto, Overture & Orchestral Songs
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe55e58b07385ed1a33518a8c89ca85e64d24243ff3c2ca91ae22220f174136c1. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB201491601 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x597cadb0c83e862eee68a032d9240f5054c490197a8554b570232fe5f0e4d912. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB201491602 — a six-check JSON result.
Piano Concerto in G Minor, Op. 33: I. Allegro moderato
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06dc76b8c2bd67de59c5d2bbe5a2e14b2d75d38a05a2608607cc0c7166ca9e0d. Chain 2 (Bitcoin): anchored in block 960435 (2026-07-31T16:33:26Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB201491606 — a six-check JSON result.
Piano Concerto in G Minor, Op. 33: II. Adagio con estro poetico
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa683ce408d3640aefded5a40c7fa6826edb1d5e6c295e06129c7fa7f93354a6a. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB201491607 — a six-check JSON result.
弓弦咏叹 (Arr. for Violin & Orchestra by Tomas Ille & Jan Valta)
Tansman: Piano Concertino - Stele in memoriam Igor Stravinsky - Piano Concerto for the Left Hand
Reinecke: Harp Concerto - Symphony No. 3
Lalo: Symphony in G minor - Piano Concerto in F minor
Wolfgang Amadeus Mozart: Konzerte für Flöte und Orchester
Reznicek, E.N. Von: Symphony No. 1, "Tragische" / 4 Bet- Und Bussgesange
Lehar, F.: Blaue Mazur (Die) [Operetta] (Beerman)
Vaughan Williams, R.: Sea Songs / Bass Tuba Concerto in F Minor / Symphony No. 5
Erdman: Symphony No. 4 / Standchen / Monogramme
Opera Arias - Adam, A. / Rossini, G. / Massenet, J. / Puccini, G. / Donizetti, G. / Verdi, G. / Bellini, V.
Büttner: Symphony No. 2, A Vision & Heroic Overture
Hiller: Symphony in E Minor, Op. 67 "Es muß doch Frühling werden" & Symphony in F Minor, HWV 2.4.4
Symphony in E Minor, Op. 67 "Es muß doch Frühling werden": I. Allegro energico e con fuoco
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe387316871882db5fb3e88baf3a8c531f0b32388986d312832b580dc62b442a8. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB202362501 — a six-check JSON result.
Symphony in E Minor, Op. 67 "Es muß doch Frühling werden": II. Adagio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea5b1379cb65fe60365ba614c73417a14034d994db2c0514a53343533e3b0ddc. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB202362502 — a six-check JSON result.
Symphony in E Minor, Op. 67 "Es muß doch Frühling werden": III. Allegro vivace
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf521a289f98639234176c02722e650b30921e7a51ecf813e4bcd1f9ffc33dbd2. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB202362503 — a six-check JSON result.
Symphony in E Minor, Op. 67 "Es muß doch Frühling werden": IV. Finale. Allegro vivace
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e24c012284b7cfdf7ac2cde0c8717fdbba0e927edf6588f84bd411d78896196. Chain 2 (Bitcoin): anchored in block 960506 (2026-08-01T03:50:58Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB202362504 — a six-check JSON result.
Symphony in F Minor, HWV 2.4.4: I. Allegro con fuoco
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x079e85cd2f8cfc962ffd5ec28ab07adfb39e183ebe80adf8482a30f75539b92c. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB202362505 — a six-check JSON result.
Symphony in F Minor, HWV 2.4.4: II. Capriccioso, molto vivace
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44c31ca180c41c7bc8d1ade65fc53d6a7ef6814e76f70cfe0c0677b0c0bdca44. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB202362506 — a six-check JSON result.
Symphony in F Minor, HWV 2.4.4: IV. Finale. Allegro assai
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8eeadfff8ccf1b0aadcc5b8b0d232dfd639a44c43fcdc8d95fa59018fc18e11b. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB202362508 — a six-check JSON result.
Symphony No. 1 in C Minor, Op. 780: I. Allegro
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Symphony No. 1 in C Minor, Op. 780: II. Andante sostenuto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43a436fc08a9f4288c01815ce587536be6cde39ed350a05a8206f07cc1edb63c. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB909701002 — a six-check JSON result.
Symphony No. 1 in C Minor, Op. 780: III. Scherzo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff390367d3d6bf802c135e7e9e2aa17261d508faf53c07679f3fa414bf85ce50. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB909701003 — a six-check JSON result.