Daniil Olegovich Trifonov (; born 5 March 1991) is a Russian pianist and composer. Described by The Globe and Mail as "arguably today's leading classical virtuoso" and by The Times as "without questio
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 0x914a0dac0b0447e382c9e733984f77501f40ebbe9382d5935434ea164b9c5cd1. 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/62b47280-36ad-4295-973f-9024d0e12504.json and https://artists.proofprofile.net/proofs/artist/62b47280-36ad-4295-973f-9024d0e12504.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
Piano Trio No. 5 in D Major, Op. 70 No. 1 "Geistertrio": I. Allegro vivace e con brio - Live
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 0xa5be7872a71d54e36aacce835d2a7acd1584fcbc48155091ffa2fee208faade6. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEN962201841 — a six-check JSON result.
Piano Trio No. 5 in D Major, Op. 70 No. 1 "Geistertrio": II. Largo assai ed espressivo - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82e98ef1dddf2b9a9b73861a0861a8f693bae33e075fdd11effa0fb1875bce45. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEN962201842 — a six-check JSON result.
Piano Trio No. 5 in D Major, Op. 70 No. 1 "Geistertrio": III. Presto - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0335b53305ad66e672a4689b259e74fd1230a287e3e9ba2a21e391a875452242. Chain 2 (Bitcoin): anchored in block 960181 (2026-07-30T00:53:20Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEN962201843 — a six-check JSON result.
Piano Trio in G Minor, Op. 15: I. Moderato assai - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5ee5803acfc24d27d5cb46bb83d56a2860d584da4223e34c34b195714368481. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEN962201851 — a six-check JSON result.
Piano Trio in G Minor, Op. 15: II. Allegro, ma non agitato - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5d0e0a1c3bf5c9a333722c3de342ed6eeb187c9c30d9d608dee11eb45277f59. Chain 2 (Bitcoin): anchored in block 960250 (2026-07-30T11:13:28Z), 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/DEN962201852 — a six-check JSON result.
Piano Trio in G Minor, Op. 15: III. Finale. Presto - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85fff974fdc00978201bd11e59da08c9d8d53654614775f108ba1d1094374b1d. 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/DEN962201853 — a six-check JSON result.
Piano Concerto No. 1 in F-Sharp Minor, Op. 1: II. Andante
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08d80c60dd1ced3603552c87f0630f6039fb3e4c4c9d23c28fd010168e4d7a2b. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEN961601312 — a six-check JSON result.
Polonaise in F Major, BWV Anh. 117b (Notebook for Anna Magdalena Bach, 1725)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99bcc47b7f6bfcc5e41469a02e421c6f0f27265cffd3e198eee5d943efb39556. 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/DEN962131728 — a six-check JSON result.
Choral "Gib dich zufrieden und sei stille", BWV 511 (Notebook for Anna Magdalena Bach, 1725)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cbc1db11c89fc82495b6490f3d0ee8564844fa43370d1a43b253769c6b67858. 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/DEN962131730 — a six-check JSON result.
Minuet in A Minor, BWV Anh. 120 (Notebook for Anna Magdalena Bach, 1725)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x419f4478b737777f138dbf37072e5065f89859fed464f68bdfa188d53091bf3d. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/DEN962131726 — a six-check JSON result.
Piano Concerto No. 2 in C Minor, Op. 18: II. Adagio sostenuto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9492cffa85cc18ba0b97ce4aaccfe7aec0d4994196fa9c66a71ef341b4de29c. 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/DEN961800362 — a six-check JSON result.
Variations on a Theme of Chopin, Op. 22: Variation No. 16 Lento
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c72aaaa4904f800405d10e022d9086c8d5b7e14650c991880286b2d51b02159. 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/DEN961530115 — a six-check JSON result.
Piano Trio No. 1 in B Major, Op. 8: 1. Allegro con brio - Live
Verbier Festival - 25 Years of Excellence
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31a975f45cd490aa764f2d68eec0810aec9c00967b0ba393c0d05caf6c0a2818. 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/DEN961502471 — a six-check JSON result.
Piano Trio No. 1 in B Major, Op. 8: 3. Adagio - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c29fd20b91f26d094283dab76199b81112298bc3cfd651c5f94ddca106fb766. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/DEN961502473 — a six-check JSON result.
Preghiera (Arr. by Fritz Kreisler from Piano Concerto No. 2 in C Minor, Op. 18, 2nd Movement)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84770384743094c5dcdfd1cd3af5c71704e0d7b81ba74f36d688eacecf594e2e. 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/DEN961502150 — a six-check JSON result.