thumb|245px|Christian Cannabich - copper engraving by Egid Verhelst 1779 Johann Christian Innocenz Bonaventura Cannabich (baptised 28 December 1731 – 20 January 1798), was a German violinist, compose
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 0xc3a3c4b263d3346619800b63e2a2be14cb6f5170b9a2f878aca052405bde7d56. Chain 2 (Bitcoin): anchored in block 953645 (2026-06-14T14:31:42Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3fb1f1c6-9695-4048-be0f-053f9ce4341f.json and https://artists.proofprofile.net/proofs/artist/3fb1f1c6-9695-4048-be0f-053f9ce4341f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Symphony No. 55 in C Major: I. Allegro maestoso
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 0x8e70dfc9d5fc7e6465299109f99dbafac731deda828d0f68e31895573232fc67. 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/DEN962201771.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf3888a8ee785f256b142dcc7597fe5ee45d8658e58ac1c6bac47a5a8edda701. 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/DEN962201782.
Violin Concerto in F Major: III. Rondeau
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea4fd170a788262646e60b7b0006d1587d9194d344aa9a9ba6befe6caa41bc23. 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/DEN962201783.
Sextet in B-Flat Major: I. Andante grazioso. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bc5213bdb0a2adc50de2f66ac1732efd0874802c01cb6976389eb42a749ff5a. 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/DEN962201790.
Cannabich: Flute Quintets Op. 7 Nos. 3-6
Richter / Stamitz / Filtz / Cannabich: Concertos of the Mannheim School
Toeschi, C.J.: Symphony in D Major / Danzi, F.: Piano Concerto in E-Flat Major / Wendling, J.B.: Flute Concerto, Op. 4
Symphony No. 49 in F Major, Op. 10, No. 4: I. Allegro spiritoso
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x370349ff98110571837849c7a8620156e52b67ca285cf3d2ea0d7f268cf5f756. 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/HKI199831601.
Symphony No. 49 in F Major, Op. 10, No. 4: III. Presto ma non troppo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96528a29b59da25c51aca80fd3e39b535a549442c2c82e7836159785649d0cba. 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/HKI199831603.
Symphony No. 50 in D Minor, Op. 10, No. 5: Symphony No. 50 in D Minor: I. Allegro non tanto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaed4ebd72bec2a68f3ff645f0e09bf2afa83a020b02762b7db497436875f6b4f. 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/HKI199831604.
Symphony No. 50 in D Minor, Op. 10, No. 5: III. Presto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cbbfd30b092727d5f9a52bb11244f6e19b9376fe6641d4edb6501309dadc97f. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI199831606.
Symphony No. 51 in D Major, Op. 10 No. 1: I. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52817176749c5f9300522c0e91fe0502e7ff91ed87b767cddcd10ea6f35ed3bd. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/HKI199831613.
Symphony No. 51 in D Major, Op. 10 No. 1: II. Andante
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfebb06d153e0a873089d4f0002e3d732c8aa05c87a25cb95e1ead2341d60454. 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/HKI199831614.
Cannabich: Symphonies Nos. 59, 63, 64, 67 and 68
Discovering the Classical String Trio, Vol. 1
Cannabich, C.: Fetes Du Serailles (Les) / Mozart, W.A.: Zaide (Excerpts)
World of the 18Th Century Symphony (The)
Minuetto - 1999 Chamber Music Festival Highlights
Symphony No. 49 in F Major: I. Allegro spiritoso
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x370349ff98110571837849c7a8620156e52b67ca285cf3d2ea0d7f268cf5f756. 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/HKI199831601.
Symphony No. 49 in F Major: III. Presto ma non troppo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96528a29b59da25c51aca80fd3e39b535a549442c2c82e7836159785649d0cba. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/HKI199831603.
Symphony No. 50 in D Minor, Op. 10, No. 5: I. Allegro non tanto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaed4ebd72bec2a68f3ff645f0e09bf2afa83a020b02762b7db497436875f6b4f. 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/HKI199831604.
Symphony No. 50 in D Minor, Op. 10, No. 5: II. Andante con brio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7f7ae1b4e384b3b7cef91026be988884357368e07c962248ad10375a5089de8. 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/HKI199831605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cbbfd30b092727d5f9a52bb11244f6e19b9376fe6641d4edb6501309dadc97f. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/HKI199831606.
Symphony No. 48 in B-Flat Major: III. Tempo di Menuetto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0591cf0356891a24f46d358d040aa32eb6dcb709be6741f9d475db3d84f3160. 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/HKI199831609.
Symphony No. 47 in G Major: I. Allegro con spirito
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd998e8e0242fb0e6be907e14850a48c6e888c34e0e5ae8e757a069db778497c3. 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/HKI199831610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52817176749c5f9300522c0e91fe0502e7ff91ed87b767cddcd10ea6f35ed3bd. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/HKI199831613.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfebb06d153e0a873089d4f0002e3d732c8aa05c87a25cb95e1ead2341d60454. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI199831614.