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 0xb42e5eb1560443c3b86d3489fadbeb0ecb04a4f1a51b2aa6184d2c3fca63eb43. Chain 2 (Bitcoin): anchored in block 954784 (2026-06-22T02:53:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ed9b52c6-79e9-4f78-8289-4b455cf25f90.json and https://artists.proofprofile.net/proofs/artist/ed9b52c6-79e9-4f78-8289-4b455cf25f90.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Bartholdy, Debussy, Brahms, Beethoven, Mozart, Tschaikowsky, Chopin, Prokofjew, Ravel, Albeniz: Natural Reflections
Mozart: Klarinettenkonzert & Sinfonia Concertante
Concerto for Clarinet and Orchestra in A Major: I. Allegro
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 0xe8ff222477ac75ffea7f6316f8eaab5c7f8af0f9d0dff4056c167d2e5fdeb09f. 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/DES380821001.
Concerto for Clarinet and Orchestra in A Major: II. Adagio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8743327e916b9ae859681289f43552e7b3324ff1b8fa4bd3c0da5ded6a204cc3. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DES380821002.
Concerto for Clarinet and Orchestra in A Major: III. Rondo. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbb90db9ac49dad93ae61ce28c67697616787d41715d8a00f2f7f6818924dfd0. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/DES380821003.
Sinfonia Concertante in E-Flat Major: I. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bf5e383dd8975032bc7aeb1df1cb37d5be59705dbdbd3f18fa8e1aae423eb49. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DES380821004.
Sinfonia Concertante in E-Flat Major: II. Adagio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9630e8410c2229261fbb0d2a5240b7db76b3c7a5bdb96c39d3492b5f119aad53. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/DES380821005.
Sinfonia Concertante in E-Flat Major: III. Andantino con variazioni
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf80a3347b9ff02a14e140895a7afffeaed3f436b1093647643e22374a5e622f. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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/DES380821006.
Clarinet Concerto in A Major, K. 622: I. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb58aa4d721a452a6e793b2a9ccd511962599d5d2deb853629c68be2b38c734c9. Chain 2 (Bitcoin): anchored in block 960489 (2026-08-01T00:40:43Z), 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/NLY331410368.
Clarinet Concerto in A Major, K. 622: II. Adagio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x277e392a3f7ffeb7c2ff377252aa8d2bc320cf5bbe938d3971c3c0915c3fad12. 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/NLY331410369.
Clarinet Concerto in A Major, K. 622: III. Rondo. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c490e9a208c77a5e414b1b7cb926051a1c8c74562539badd5b45c517ff5cad9. 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/NLY331410370.
Mozart: Sinfonia concertante in E-Flat Major / Flute and Harp Concerto in C Major
Haydn: Sinfonia Concertante / Mozart: Sinfonia Concertante
Floating Harmony - Natural Reflections (In Harmony with Classical Music)
Mozart: Sinfonia concertante Es-Dur, K. 297b
Trust in Tranquility (In Harmony with Classical Music)
"Sinfonia concertante" in B-Flat Major, Hob. 1:105: Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa465ea2e58168001339a4318528daecb8ae13e94ff01e0029da2a1de169a3079. Chain 2 (Bitcoin): anchored in block 960485 (2026-08-01T00:10:46Z), 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/DES380730001.
Classical Comfort - Trust in Tranquility (In Harmony with Classical Music)