thumb| Alexander Brailowsky (16 February 1896 – 25 April 1976) was a Russian and French pianist who specialised in the works of Frédéric Chopin. Early life Brailowsky was born in Kiev, then part of t
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 0x274f87d0dfeb756c28f2593da68a2863451f30d2480839f07d27879d3a3dab05. Chain 2 (Bitcoin): anchored in block 953896 (2026-06-16T06:05:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/10b96e71-c821-4068-b158-8ebb4af65206.json and https://artists.proofprofile.net/proofs/artist/10b96e71-c821-4068-b158-8ebb4af65206.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Chopin: Ballade, No. 1, 2, 3, 4 / Polonaises
Milestones of a Piano Legend: Alexander Brailowsky, Vol. 9
Milestones of a Piano Legend: Alexander Brailowsky, Vol. 8
Milestones of a Piano Legend: Alexander Brailowsky, Vol. 7
Milestones of a Piano Legend: Alexander Brailowsky, Vol. 6
Milestones of a Piano Legend: Alexander Brailowsky, Vol. 5
Milestones of a Piano Legend: Alexander Brailowsky, Vol. 2
Milestones of a Piano Legend: Alexander Brailowsky, Vol. 10
More Piano Giants: Arturo Benedetti Michelangeli, Alexander Brailowsky, Vol. 10
Chopin: Piano Sonatas No. 2 & 3 (2018 Remastered Version)
Chopin: 24 Preludes, Op. 28 (Remastered) [2018 Remastered Version]
Alexander Brailowsky Plays Chopin Waltzes (2018 Remastered Version)
Alexander Brailowsky Plays Chopin Etudes Op. 10 & Op. 25 (2018 Remastered Version)
Rachmaninoff: Piano Concerto No. 2, Philippe Entremont vs. Alexander Brailowsky (Compare 2 Versions)
Alexander Brailowsky Liszt and Encores: The Berlin Recordings 1928-1934 Vol 2.
Alexander Brailowsky - The Berlin Recordings - Vol. 1 Chopin
Chopin: Konzert für Klavier und Orchester No. 1 e-moll op.11 / Liszt: Konzert für Klavier und Orchester No. 1 Es-dur
Hommage à Chopin, disque du cent-cinquantenaire (Mono Version)
Chopin: Sonate pour piano No. 3, Andante spianato et Grande polonaise brillante & Prélude, Op. 45 (Mono Version)
Chopin: 24 Préludes, Op. 28 (Mono 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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5e41b6c8e05972480fc8e87e5eac8260d678d2f2daa2c4fa9ee3770b3a1535e. 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/USSM11605122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cd5c2f931b78fb63d9699474a56cbfdafc3ff4229a177822a4a840463cbbd2c. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM11605116.
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
Chopin: Nocturnes, Op. 9, 15, 27 & 32 (Mono Version)
Schumann, Mendelssohn, Schubert & Weber: Récital pour piano (Mono Version)
24 Préludes, Op. 28: No. 19 In E-Flat Major
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe41a450e478f75ea744e95118e16812a19aaa6f331d49d4e14417e59e8495b71. 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/FR9W12445131.
Chopin: Piano Concerto No. 1 - Liszt: Totentanz (2023 Remastered Version)