thumb Mūza Rubackytė (born May 19, 1959) is a Lithuanian pianist, currently residing in Vilnius, Paris and Geneva. Rubackytė has been awarded the Order of the Lithuanian Grand Duke Gediminas, Lithuani
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 0xd5c7d97a282299b312f6a5b9c2cf518594319b2b799423da6a8808fc32cfb11d. Chain 2 (Bitcoin): anchored in block 953636 (2026-06-14T13:03:42Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/34e1c29b-8c71-4e64-9632-687693499f4f.json and https://artists.proofprofile.net/proofs/artist/34e1c29b-8c71-4e64-9632-687693499f4f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Vierne: Spleens et Détresses & Piano Quintet
The Lyrinx Recordings (2004): Live at La Criée
The Lyrinx Recordings (2003): Liszt: Années de Pèlerinage
The Lyrinx Recordings (1997): Liszt: Parcours satanique
The Lyrinx Recordings (1996): Les Études de Liszt, vol. 1
The Lyrinx Recordings (1991): Liszt, Piano Works
Saint-Saëns: Piano Concertos Nos. 2 & 5 (Great Lithuanian Live Recordings)
Beethoven: Piano Concerto No. 4, 32 Variations on an Original Theme & Piano Sonata No. 23
Shostakovitch, Prokofiev & Schnittke: Piano Concertos
Liszt: Concertos No. 1, S. 124 & No. 2, S. 125 (Live)
Prélude, Fugue et Variation, Op. 18: I. Prelude
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 0xc1be927c168ffdb891474b54e741adf8b89a5a73540e0a0582cbe7f3d69db703. 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/NLY330604421.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc720d3bc19f8146e86bdb191862eeeae7bc09d82b9958a2c9c2a5d4647efd537. 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/NLY330604428.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9446106fda279f669b03e28c53ed91112049d50fb8907d6300af2ca00d7532e. 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/NLY330604429.
Prelude, Choral et Fugue: III. Poco allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa53793cecd398e35eda1557a30f9d2b200829c5cd4805d97f45b9a19a549df00. 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/NLY330604430.
Prélude, Fugue et Variation, Op. 18: II. Lento
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93aaa982629ce0a43c96ff7a2de705b492aa82df943ec1172dcbe5de57341d94. Chain 2 (Bitcoin): anchored in block 960379 (2026-07-31T09:25:34Z), 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/NLY330604422.
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
Prélude, Fugue et Variation, Op. 18: III. Fugue
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f8eb5d50b347cb561179c2bc1902db0d29bd31476f87aacda47467257838073. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/NLY330604423.
Prélude, Fugue et Variation, Op. 18: IV. Variation
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93db51cf98893628fe014774a83bab9899274f3141720517e96f62eb3095c162. Chain 2 (Bitcoin): anchored in block 960379 (2026-07-31T09:25:34Z), 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/NLY330604424.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1437145f7ba1efbc6475be5f4296aa7d920f1c4c1d2e676f88b945f3492053bf. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY330604431.
Liszt: Two Piano Concertos & Ruins of Athens Fantasy
Beethoven: Triple Concerto & Choral Fantasy
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbad8f5464a17590d3ba5b4efdc541ab3dd4b5287b44729e75fb5d8386573813e. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/HKI199413406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabc559a35c7504f959c4255e878785772cba1ccad93c39e6b54731967090a5fb. 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/HKI199413412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37fb28e5bf3eaea1dd11b388c5129402f1f8096f6710e97f58a70bcc877d6103. 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/HKI199413402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7a01b4d44c6d37fdf9b6d1b48c350b71b91bc166e3b162a1cb5f9c6685c92f3. 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/HKI199413417.
Piano Sonata in F major, VL 155: III. Scherzo: Allegro vivace
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6c1d155e3da9502b15eabb3de9b312a0969d97466b53ece635e8bc1fc570041. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/HKI199413420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd1c3d41d12ed7612f5eadf74f468e7bf5254a5ec1fd08de65d623c7f81237a3. Chain 2 (Bitcoin): anchored in block 960200 (2026-07-30T02:37:10Z), 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/HKI199413404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x520f6a2b0d187b85ed287c7c259911c8b451ea45dba80b3aa6f8af80bd8ac9d1. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/HKI199413401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ab845a531f690909450d3521cb262b453dffacc5752affc4811867f663c6636. Chain 2 (Bitcoin): anchored in block 960185 (2026-07-30T01:32:48Z), 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/HKI199413407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafb530fee0d400abd68f59ed3b7ffb8f8083adba46582c047b4cbc00e1855df2. Chain 2 (Bitcoin): anchored in block 960317 (2026-07-30T21:35:24Z), 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/HKI199413403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf477ed9fe8a3fb6dc6301d88672ca1ef100b23896331f735d5118245c106eb3d. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/HKI199413405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4e05f5d4636799046f58069fe06146d328a3d16547b29aa44549120f936bef4. 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/HKI199413408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9caae71bf06b6aacceb895bb8a808bcbc5321af28c712b20d63d3c1b70520c89. Chain 2 (Bitcoin): anchored in block 960485 (2026-08-01T00:10:46Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI199413410.
Piano Sonata In F Major, Vl 155: I. Allegro Moderato
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea1a739279dd07d3d977471cce01e9b945b19daa6cfa738ff94d66a1b014b4eb. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/HKI199413418.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d3bea063802aa6e714b0dace7280a19e9ad154da70e222df4bbc371aad47d9b. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI199413409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x652aba0b5dcb26fc045162d285f4f773d28a2b2d8595530379ba18af3415c18d. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/HKI199413411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80c5055dab8855ad0f56798c66647cf0c65f5e6dc0eb9feebfb4fa346b9d97a1. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI199413413.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffd689f4c696c8705e08fd5b8627401fe08da28c72d4f9fed82d6a4785f31421. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI199413414.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdeaf9ef510461e55f904d8c0cfdf522d434b38ed86f078dc4b0573f602e905f0. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI199413415.