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 0xb95dc9f5ede78296037fd8ba320c573238eabd405b09ad7c0a7f9581df68de3d. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0b39e786-4c6c-43f9-b806-b49604a45fac.json and https://artists.proofprofile.net/proofs/artist/0b39e786-4c6c-43f9-b806-b49604a45fac.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Crusell: Clarinet Concerto No. 2 / Weber: Concertino / Rossini: Introduction, Theme and Variations
Adagio for clarinet and strings in D flat "Wagner's Adagio"
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 0x1d2d5ead329ab2124e66d67ff8b6d1f7cf304a13bbbf4c998040ee9c5c8a7156. 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/GBUM70805988.
Weber: Clarinet Concerto No.1; Tartini: Concertino etc
Weber, Spohr & Crusell: Clarinet Concertos
Crusell, Kozeluch, Krommer: Clarinet Concertos
The Victorian Kitchen Garden - Suite: Prelude
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11f72c374dd08b10a6a48d330396e943272d1c99b17278cdf2c46899458b962a. 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/GBAJE0705769.
The Victorian Kitchen Garden - Suite: Mists
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5cbd9cc995475d247748647597820eed9c543dfcf8cf340d989a756f914d7a3. 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/GBAJE0705771.
Woodland Sketches, Op. 51: To a Wild Rose
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0a4c0fb7a67e9ba052dca69c2347418d608990bff0876c683b8f72a513c24d3. 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/GBAJE0705775.
Finzi: Clarinet Concerto; 5 Bagatelles / Stanford: Clarinet Concerto; 3 Intermezzi
5 Bagatelles for clarinet and piano, Op. 23: 3. Carol - Andantino semplice
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x084144a36faed491b36429061836fc03b399ceb16290b1623a0b40713fbdff0e. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/GBUM70801655.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11f72c374dd08b10a6a48d330396e943272d1c99b17278cdf2c46899458b962a. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/GBAJE0705769.
Mozart: Clarinet Concerto; Clarinet Quintet
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed2be9c4cef0024244265c215d0378c0a1790db4ce005d9e560cba02c01303b3. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/GBEKZ0300222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x847a568a8212bbd208d7473b87f628488e69a0e8e53fc6ab4bc67d6f8d249087. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/GBEKZ0300215.
Copland & Bernstein: Clarinet Sonatas - Dankworth: Suite for Emma & Picture of Jeannie
Copland, A. / Bernstein, L.: Clarinet Sonatas / Dankworth, J.: Suite for Emma / Picture of Jeannie
Violin Sonata (version for clarinet and piano): II. Lento
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcafd317f8fd2f0876cc6601fd354bf234ed5c0f4433e11705268007b4538ffe4. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/HKI190874409.
Brahms, Mendelssohn, Schumann: Clarinet Sonatas
Brahms, Mendelssohn & Schumann: Clarinet Sonatas
Brahms: Clarinet Quintet - Zemlinsky: Clarinet Trio
English Fantasy: Music for Clarinet and Orchestra
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9853669e8d72c2f02638ce3d37cee5b36f60cb1dd567b9def53c7e698db42591. 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/GBAJU1600634.
Suite from The Victorian Kitchen Garden: I. Prelude
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b9a02aa07c43eed072eece4689952ca6b07acb98ceb73d889fe1a4bf8c2ce2a. 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/GBAJU1600635.
Suite from The Victorian Kitchen Garden: II. Spring
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79e046640f54c7a4c7ef22475882b5b248152b0baff62e8a9f27a9b04676c2cb. 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/GBAJU1600636.
Suite from The Victorian Kitchen Garden: III. Mists
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f72eca2eec92bf09355e5fa5ed11c7f2cdd5d018cdebf381c8a1951e6c92324. 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/GBAJU1600637.
Suite from The Victorian Kitchen Garden: IV. Exotica
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b353aaa4e46ff5069c6c053b89873cd3d57b440f7a64dabe8da11188c844f23. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/GBAJU1600638.
Suite from The Victorian Kitchen Garden: V. Summer
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe873eb133bf1f4f102c1cb385c8948e0f3f70a548ab1301840895bf10ee5299d. 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/GBAJU1600639.
Clarinet Concerto "The Woolwich": II. Cantabile - Reggae
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x884f221579b0df5c724f046fc55a0a45ee06c49c95d8c4ba86a22e87195e0ec6. 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/GBAJU1600641.
Clarinet Concerto "The Woolwich": III. Slowly - Nostalgically
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55bb8fd89f3f8ba7191ae38df715c5c33a862b2dcd557e5428e795bd2dc1a55d. 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/GBAJU1600642.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7547dc7ea30e73553c2a7ebfbc2669d58e7bf4d7ac8519190fdfa2e305ef6af7. 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/GBAJU1600832.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93df065f96695c9fc96cd8dc0649d6af054da441c602f284767456c5cf669ef0. 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/GBAJU1600833.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a999a41bb8407a0a177dbb50d0afbee91db8fb4fb01e5d9dfaf57b4e023a33a. 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/GBAJU1600844.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x813bdc72d8886e43010f22ef37f14a10d5b7ad2a75ad6de720fd983fcf6a2636. 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/GBAJU1600845.
Beethoven, Küffner & Strauss: Chamber Works
Songs of Celebration: IV. There is No Rose
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8367a773346abb70c69bdb553a0a0eee39a22b3a460c423ba658038111b49aa9. 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/GBBJY0402232.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8367a773346abb70c69bdb553a0a0eee39a22b3a460c423ba658038111b49aa9. 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/GBBJY0402232.
Clarinet Concerto in A major, K622 (Second Movement - Adagio)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba26c9dac24ad3ebf57859e1876c8dbafc282cbe788443211ae37a8fb7b8d5d5. 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/GBAJE0602768.