Iona Brown, OBE, (7 January 19415 June 2004) was a British violinist and conductor. Early life and education Elizabeth Iona Brown was born in Salisbury and was educated at Cranborne Chase School, Dor
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 0x2020980a7f10c3c27412ebec77519ea68d2648ced8580a30d117564e7ccd3024. 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/9e29f7f8-0210-4aeb-8ac4-ac76bb7b5b1e.json and https://artists.proofprofile.net/proofs/artist/9e29f7f8-0210-4aeb-8ac4-ac76bb7b5b1e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Mozart For The Morning Commute - A Lively Bit Of Traveling Music
Sinfonies de Fanfare in D Major: 1. Rondeau
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 0x36f9e345ccd6978598335f60ae3d4c9267ecbd748cd75bb174ef31a263fd7ec7. 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/DEF058501881.
Serenade No. 13 in G Major, K. 525 "Eine kleine Nachtmusik": I. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8973a87fa7edd5fa5cb48661bfe82eaa234700954d29a9c5dd6438c68ee965c4. 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/USB8U1612632.
Serenade No. 13 in G Major, K. 525 "Eine kleine Nachtmusik": II. Romanze: Andante
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0453c9b21f7831fa83a02489bec5f2021b614bee8ce40c0b37f69d8a8499253e. 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/USB8U1612633.
Concerto for Flute and Harp in C Major, K. 299: II. Andantino
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x824864dac07ee4a62d12cbdc78b895ce011d67b203beb14ad51a44917a8aabbb. 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/USB8U1612649.
Serenade No. 13 in G Major, K. 525 "Eine kleine Nachtmusik": III. Menuetto: Allegretto - Trio - Menuetto da capo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34bfcc08720d92add60dbc5c20be9ac6e26c6dd12677edfc4332b558ca1a52f2. 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/USB8U1612634.
Clarinet Concerto in A Major, K. 622: II. Adagio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78654967e7dd07b0b182bff87e31f96d2418308ba6595e46aa939287218be135. 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/USB8U1612651.
Die Zauberflöte, K. 620: Act II: Pa-Pa-Pa-Pa-Pa-Pa-Papagena! (Papageno, Papagena)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad949396cb4bdd550b2935c0a04633f268728ded55405d9f5adc19eddaa891f6. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/USB8U1612637.
Oboe Quartet in F Major, K. 370 (Arr. for Flute Quartet): III. Rondeau: Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03417e0b7a6a7c65e9788086b7fc827e947fcda905468763f870c6ecc074bd62. 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/USB8U1612654.
Piano Sonata No. 14 in C Minor, K. 457: I. Molto allegro
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Piano Sonata No. 16 in C Major, K. 545 "Sonata facile": III. Rondo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88cbbf0faa94d62019973b446cd22167a7b0f7e0f9e6f0313e887408b7e9a25e. 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/USB8U1612640.
Serenade No. 13 in G Major, K. 525 "Eine kleine Nachtmusik": IV. Rondo: Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37639e1067e05b68defcd7fe1605b1a9d8a99c6ff41a75c68d83c2d05db522de. Chain 2 (Bitcoin): anchored in block 960193 (2026-07-30T02:05:19Z), 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/USB8U1612635.
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
Symphony No. 6 in D Major, Hob. I:6 "Le Matin": 1. Adagio - Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13b52e96bd1669a457b10bc42233d6b503e2025e3bd8530bbc3040e233b1e450. 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/NLA507917901.
Symphony No. 6 in D Major, Hob. I:6 "Le Matin": 2. Adagio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4c59f1fb1f9b4622408ff373ecbb36f37c78b896383fc41060cb07f8814d275. 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/NLA507917902.
Symphony No. 6 in D Major, Hob. I:6 "Le Matin": 3. Menuet
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64aa6b50ce2ffe0e7f3ccd8948a8f9194186f5d20988faa858a0ddc0fff36f31. 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/NLA507917903.
Symphony No. 6 in D Major, Hob. I:6 "Le Matin": 4. Finale. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcaa95174a320b8ac012e527c3c48537712a1c6d076ff1b2528e70a45bb14ccb3. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/NLA507917904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba02deef1f0f7f0d6620c67b1a884f898a53ac09e942280458178ad680cd9c3b. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/GBF077210001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21bd91c1985cf1e518c116624f474d4e18c8474d8f64f23d85db839e7e0edea7. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/GBF077210004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8dd434eaf990f7b08e8283d1fc6ae14525a7191feaaac102afcd0a2fd3247c8. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/GBF077210003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x821fe454e87a807a57be350301e8f483c531c0cdc589e6bd8bbe8e0c5470812a. 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/FRV770501000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd796f2208e91703cb66df9b2982d34c345e1ce8a094a6739a447a23c5f0968f3. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC8601453.
Les Quatres Saisons: Concerto En Fa Mineur, RV 297 "L'hiver": II. Largo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd25bd842269bbc5eaac886ff16ba2b833d71fb86ad188d6867d8c1aa7ff2c97d. 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/FRV770501008.
Harp Concerto in A major: 3. Rondeau: Allegretto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe08482e16aaafd370bd8641f730307047451b57e428b121ba9c932a5f31a7110. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/GBF078010643.
12 Violin Concertos, Op. 9 "La cetra" / Concerto No. 10 in G Major, RV 300: 2. Largo cantabile
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa111956ad658531277390ac8a64552922809a051d8be93c4518f524af9bf7537. 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/GBF077742629.
Vivaldi: Concerto for Violin and Trumpet in B-Flat Major, RV 548: III. Allegro
Academy of St Martin in the Fields - Vivaldi
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Vivaldi: Concerto for Violin and Trumpet in B-Flat Major, RV 548: II. Largo
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Bach, JS: Brandenburg Concerto No. 4 in G Major, BWV 1049: I. Allegro
Bach: Brandenburg Concertos - Orchestral Suites
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad205c2a0986ca0ececfb983ad42d4646f137d34602fbda15bf6e84f91e109f0. 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/FRV770501003.
Bach, JS: Brandenburg Concerto No. 4 in G Major, BWV 1049: II. Andante
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Vivaldi: Guitar Concerto in D Major, RV 93: III. Allegro
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Vivaldi: Guitar Concerto in D Major, RV 93: II. Largo
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Vivaldi: Concerto for Violin and Trumpet in B-Flat Major, RV 548: I. Allegro
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Vivaldi: Guitar Concerto in D Major, RV 93: I. Allegro
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Suite Pour Orchestre No. 3 En Ré Majeur: Aria
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbde5a6fb7c230aa8707e08b7dfaa936bd3ab0a248246b7e96bac6d2dfbd074e. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/FRV770501002.