Peter Donohoe may refer to: Peter Donohoe (bobsleigh) (born 1964), Irish Olympic bobsledder Peter Donohoe (Gaelic footballer) (died 2004), former Gaelic football player for Cavan Peter Donohoe (pi
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 0xecbc8cb034b0639205c623beb8972b1bb4d746571d0e50620f2a3ad4a0e46bc0. 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/3b4e092d-6769-40cb-af9e-8ad941c9d75d.json and https://artists.proofprofile.net/proofs/artist/3b4e092d-6769-40cb-af9e-8ad941c9d75d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Harty: Comedy Overture (A) / Piano Concerto / Fantasy Scenes
Mozart: Piano Concertos, K. 242, 365, 466 & 467
Piano Concerto No. 20 in D Minor, K. 466: 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 0x0ec727f3cb325272db37dc2439194ddd766205e58bba8e44b11ae29cd50133fa. 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/GBBZS1826801.
Concerto for 2 Pianos in E-Flat Major, K. 365: I. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5ba3c4adb95e1150dfa98f528b6ee2e120555a7efb1babf0d0b7a55dc96dcff. 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/GBBZS1826808.
Piano Concerto No. 20 in D Minor, K. 466: II. Romance
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd00d88dc51269622de30fac987b7d9564a25bf3c4d7db22d12a3c3f391bff361. 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/GBBZS1826802.
Concerto for 2 Pianos in E-Flat Major, K. 365: II. Andante
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d01eb1bd84ec14059b2d1f4c08d1450bea4c378a2575034dd9695436bede5fd. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/GBBZS1826809.
Piano Concerto No. 20 in D Minor, K. 466: III. Allegro assai
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3513ef2a8e48520d509ae856c8b99598ab1fd29192e0e6f077c1a247597f3f2. 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/GBBZS1826803.
Concerto for 2 Pianos in E-Flat Major, K. 365: III. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71d9ceae569837f207570aa19f4de395e0e6072b0ec68b8a6c50faf677b2e22d. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/GBBZS1826810.
Piano Concerto No. 21 in C Major, K. 467 "Elvira Madigan": I. Allegro maestoso
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2acc42e28cd96e6294f2d1e27c736ba107b9a543797af448dba5a6041c4c5557. Chain 2 (Bitcoin): anchored in block 960150 (2026-07-29T21:51:49Z), 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/GBBZS1826804.
Sonata for 2 Pianos in D Major, K. 448: I. Allegro con spirito
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe71d96ae091a3654e10ead989c2416f3a592db412e3a918af362d7c0093e1d8f. 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/GBBZS1826811.
Piano Concerto No. 21 in C Major, K. 467 "Elvira Madigan": II. Andante
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec35793a26d5693a270ddf5019b144d892721ab1b315e67be3ca76b6efbd1cfe. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/GBBZS1826805.
Sonata for 2 Pianos in D Major, K. 448: II. Andante
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55469b4c766c3176bc7d1b28b9182101c08a18abf6fc5b08d2243f6c5c7a7f45. Chain 2 (Bitcoin): anchored in block 960497 (2026-08-01T02:22:04Z), 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/GBBZS1826812.
Piano Concerto No. 21 in C Major, K. 467 "Elvira Madigan": III. Allegro vivace assai
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1fbb3caa0f820a26d33fbd9e3408058e5e3c5f4764fdb5577a215581876c13c. 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/GBBZS1826806.
Sonata for 2 Pianos in D Major, K. 448: III. Allegro molto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb835e7768b684d50953bd9ef9e7cafb150ccb62ef48c5c47a7df0c2d36a8d256. 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/GBBZS1826813.
Fantasia in C Minor, K. 396 (Arr. & Completed by M. Stadler for Piano)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x027265cfc3d110f1528882ff046e1d69aaa0f2eeace272915cca0d9b9930deda. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBBZS1826807.
Concerto for 3 Pianos in F Major, K. 242 "Lodron": I. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda358a507cb5b451a2764156e902774df7d6c111afb53721c209c41cbcb54fde. 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/GBBZS1826814.
Concerto for 3 Pianos in F Major, K. 242 "Lodron": II. Adagio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80a5151b242437fc51bd50a02c16c7b4916cd837ce13724ac22959762bbd4d30. 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/GBBZS1826815.
Concerto for 3 Pianos in F Major, K. 242 "Lodron": III. Rondeau. Tempo di menuetto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b41fac949cb17f649310c8fbf7109cd193dda6775737bf970f5395d52e34c51. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/GBBZS1826816.
Mendelssohn: Works for Solo Piano, Vol. 3
Six Piano Pieces, Op. 118: No. 2, Intermezzo in A Major (Andante teneramente)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1971bd682dc559341ee9a38021f429c8baeb885f35e3ff30b80d17d3bbcbc2aa. 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/GBAYD9000143.
Six Piano Pieces, Op. 118: No. 1, Intermezzo in A Minor (Allegro non assai ma molto appassionato)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13b774fbf1e830f69e8364254936835ac75baa386de0bc684969c826043c5ce0. 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/GBAYD9000142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23523c1ea287bf83bfe687e4735ed8d244164eecf2fea88d93c3a47e296e45ab. 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/GBAYD9200246.
Diabelli Variations, Op. 120: No. 1, Theme: Vivace - No. 2, Var. 1: Alla marcia maestoso
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3ff1ccde056cf73186c60bf7cd5c3dda7db2cf77bcd2be714c95b2ba7300812. 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/GBAYD0900014.
Chopin: Berceuse in D-Flat Major, Op. 57
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23523c1ea287bf83bfe687e4735ed8d244164eecf2fea88d93c3a47e296e45ab. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/GBAYD9200246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1971bd682dc559341ee9a38021f429c8baeb885f35e3ff30b80d17d3bbcbc2aa. 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/GBAYD9000143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23523c1ea287bf83bfe687e4735ed8d244164eecf2fea88d93c3a47e296e45ab. 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/GBAYD9200246.
Six Piano Pieces, Op. 118: II. Intermezzo in A Major (Andante teneramente)
Tchaikovsky: Piano Concerto No. 2 in G Major, Op. 44: III. Allegro con fuoco
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09ed392b1079afad73d1e27ff78d35d263331c239465bf716199c823bb5eb23b. 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/GBAYD8600155.