Barry Emmanuel Tuckwell, (5 March 1931 – 16 January 2020) was an Australian French horn player who spent most of his professional life in the UK and the United States. He is generally considered to h
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 0x9ac6e5808a219d12b75c3a32c583e7baeeb1d61b4057fd5d9766142d9a8310c1. 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/79fb97fc-a65d-4fde-9c9d-5722fe49c043.json and https://artists.proofprofile.net/proofs/artist/79fb97fc-a65d-4fde-9c9d-5722fe49c043.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
Elgar: Symphonies Nos 1-3, Enigma Variations, Cello Concerto, Marches
Symphony No. 1 in A-Flat Major, Op. 55: I. Andante. Nobilmente e semplice - Allegro - 2023 Remastered Version
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 0x7b4d7e5bf2430a17762efb464e3dd72891735ea9d3ba19ff597755b1a4c495c1. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/GBDGQ2301701 — a six-check JSON result.
Symphony No. 2 in E-Flat Major, Op. 63: I. Allegro vivace e nobilmente - 2023 Remastered Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a651da077925b80f1a28f955f8adbe36c7ff842a3be50d3731d38883d7c8fc6. 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/GBDGQ2301801 — a six-check JSON result.
Symphony No. 3 in C Minor, Op. 88 (posth.): I. Allegro molto maestoso (Sketches elaborated by Anthony Payne) - 2023 Remastered Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6772c77a284a5bdd2d13d5c4eb76411d55696f3ca52993e8565f1e73a173e416. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBDGQ2301901 — a six-check JSON result.
Symphony No. 1 in A-Flat Major, Op. 55: II. Allegro molto - 2023 Remastered Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x016ecadc618f97bff4ba9351a0529de0eb9e6e666343e28b493b5a63669b4fb0. 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/GBDGQ2301702 — a six-check JSON result.
Symphony No. 2 in E-Flat Major, Op. 63: II. Larghetto - 2023 Remastered Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30787668dc98daeefe4dcb25538881a45ce0dc792c949d57664f7084a8823f59. 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/GBDGQ2301802 — a six-check JSON result.
Symphony No. 3 in C Minor, Op. 88 (posth.): II. Scherzo. Allegretto (Sketches elaborated by Anthony Payne) - 2023 Remastered Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16e1769e9209d0fb24e36a64c276a92cb6d949080210a4db16c2fe64d9edba3f. 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/GBDGQ2301902 — a six-check JSON result.
Variations on an Original Theme, Op. 36 "Enigma": Theme (Andante)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd5e2544c0bb656d493fa18fd04139d66573ebfa6d5b13f6e74cf211b9a962db. 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/GBDGQ2310901 — a six-check JSON result.
Symphony No. 1 in A-Flat Major, Op. 55: III. Adagio - 2023 Remastered Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0bd8a3ce956ddd83f7dee4d39ac8ba986ea6bdb91a53811852721a651f5fc52. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBDGQ2301703 — a six-check JSON result.
Symphony No. 3 in C Minor, Op. 88 (posth.): IV. Allegro (Sketches elaborated by Anthony Payne) - 2023 Remastered Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x991be7c8514a5527a3938649c1f22f406899359bcb7f0ae37922966e3b1b75e0. 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/GBDGQ2301904 — a six-check JSON result.
Pomp and Circumstance Military Marches, Op. 39: III. March No. 3 in C Minor
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3254fc800052ea5a1a8f84867c49bad62fb07af20b7e82ff03a4797ddd451508. 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/GBDGQ2312623 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1914dc6c28174357dfeac42f594ad3293e47d0b1a2eec1aa05788c42d093061. 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/GBDGQ2336601 — a six-check JSON result.
Pomp and Circumstance Military Marches, Op. 39: II. March No. 2 in A Minor
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab39d18836d016c3a769239dc2e09cf57af828db917f14c39968b330fbd74fa1. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBDGQ2312622 — a six-check JSON result.
Cello Concerto in E Minor, Op. 85: I. Adagio - Moderato
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x282ed11c6240a7de3fc4a1c54cbd7a776b4508f510e10afaf481e7ba97933384. 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/GBDGQ2308401 — a six-check JSON result.
Mozart: Horn Concerto No. 4 in E-Flat Major, K. 495: III. Rondo. Allegro vivace
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc276605b08cfa9b1603241d81aac4e253cd140c2f0b94fd83b15ee03c7a63b22. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/GBAYC8802143 — a six-check JSON result.
Mozart: Horn Concerto No. 2 in E-Flat Major, K. 417: II. Andante
Pachelbel: Canon - Albinoni: Adagio - Bach: Air on G String - Mozart: Eine kleine Nachtmusik - Fauré: Pavane - Handel: Hallelujah from the Messiah & Other Classical Hits
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5733080504ed1f95f5a8749a144b8a0e96febf1ad6a4786173c944ffae364265. 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/GBAYC8805735 — a six-check JSON result.
Mozart: Horn Concerto No. 2 in E-Flat Major, K. 417: III. Rondo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98a348ed6f0b4a3b5e0090546aaf2d0e71899c151b2577f345093a5bb3aeb0c4. 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/GBAYC8805736 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe080da2c15ca6e456c3c4cc3ee9749f7181266152036f9cf28aea8028d7ac1e7. 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/GBAYC8805740 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe080da2c15ca6e456c3c4cc3ee9749f7181266152036f9cf28aea8028d7ac1e7. 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/GBAYC8805740 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98a348ed6f0b4a3b5e0090546aaf2d0e71899c151b2577f345093a5bb3aeb0c4. Chain 2 (Bitcoin): anchored in block 960459 (2026-07-31T20:22:46Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC8805736 — a six-check JSON result.
Grieg: Morning Mood - Albinoni: Adagio - Gluck: Dance of the Blessed Spirits - Bach: Jesu, Joy of Man's Desiring & Badinerie - Charpentier: Te Deum - Bizet: Les toréadors & Other Classical Hi
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98a348ed6f0b4a3b5e0090546aaf2d0e71899c151b2577f345093a5bb3aeb0c4. 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/GBAYC8805736 — a six-check JSON result.
The Classic Experience - 135 of the greatest classical tracks