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 0xce6b0be20c198d4ae62b1a7ddb3b7d64974749aa140b65a5126d48b050eb33c3. 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/2fc8458c-a700-4d71-af6b-9457c6171c20.json and https://artists.proofprofile.net/proofs/artist/2fc8458c-a700-4d71-af6b-9457c6171c20.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Spendiarov: Complete Piano Works & Chamber Works with Piano
Berceuse, Op. 3 No. 2 (Version for Piano)
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 0x2013ac18a60aeb9632f66f5230b42fca9ad47ea4c4fff53da108921dbd3db57c. 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/HKI192035113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb7035ae121472a4f48295ae02cd8d01d2860d5f1947645c8d08e83e6c786a2b. Chain 2 (Bitcoin): anchored in block 960463 (2026-07-31T20:42:35Z), 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/HKI192035204.
The Key Collection: 3 Centuries of Rare Keyboard Gems
Studio per il pianoforte, Book 1, Op. 30: No. 26 in G-Sharp Minor
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Gayane (Arr. for Piano by Alexander Tseitlin): Uzundara - Gayane's Dance
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Gayane (Arr. for Piano by Villy Sargsyan): Lullaby
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Masquerade Suite (Arr. for Piano by Alexander Dolukhanian): I. Waltz
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Masquerade Suite (Arr. for Piano by Alexander Dolukhanian): II. Nocturne
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Masquerade Suite (Arr. for Piano by Alexander Dolukhanian): IV. Romance
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Gayane (Arr. for Piano by Alexander Tseitlin): Lezginka
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Spartacus: Adagio of Spartacus & Phrygia (Arr. for Piano by Villy Sargsyan)
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Scientist (The Noam Chomsky Music Project)
HaSulam: Melodies of the Upper Worlds (Arr. M. Ayrapetyan for Piano)
Melodies of the Upper Worlds (Arr. M. Ayrapetyan for Piano): III. Have Pity on Your Deeds
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Melodies of the Upper Worlds (Arr. M. Ayrapetyan for Piano): VI. Passover Meal
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Melodies of the Upper Worlds (Arr. M. Ayrapetyan for Piano): XII. David's Song
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Melodies of the Upper Worlds (Arr. M. Ayrapetyan for Piano): I. Draw Close to Me
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Melodies of the Upper Worlds (Arr. M. Ayrapetyan for Piano): II. You Saved My Soul
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Melodies of the Upper Worlds (Arr. M. Ayrapetyan for Piano): IV. Melody
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Melodies of the Upper Worlds (Arr. M. Ayrapetyan for Piano): Va. The Sons of King's Palace
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Melodies of the Upper Worlds (Arr. M. Ayrapetyan for Piano): Vb. The Sons of King's Palace
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Melodies of the Upper Worlds (Arr. M. Ayrapetyan for Piano): VII. The Creator Hides in Secrecy
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Melodies of the Upper Worlds (Arr. M. Ayrapetyan for Piano): VIII. March
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Melodies of the Upper Worlds (Arr. M. Ayrapetyan for Piano): IX. Accept Our Prayers
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Melodies of the Upper Worlds (Arr. M. Ayrapetyan for Piano): X. Like Matter in His Hands
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Melodies of the Upper Worlds (Arr. M. Ayrapetyan for Piano): XI. The Assembly of Sages
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Melodies of the Upper Worlds (Arr. M. Ayrapetyan for Piano): XIII. To Proclaim in the Morning About Your Mercy
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Melodies of the Upper Worlds (Arr. M. Ayrapetyan for Piano): XIV. Consecration
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Melodies of the Upper Worlds (Arr. M. Ayrapetyan for Piano): XV. Saint
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Melodies of the Upper Worlds (Arr. M. Ayrapetyan for Piano): XVI. Beloved of the Soul
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Armenian Folk Dances: No. 6, Round Dance of Gyumri
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Miniatures for Piano "A Whole in Twelve": No. 2, The Lady Plays
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Miniatures for Piano "A Whole in Twelve": No. 6, Prayer
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Miniatures for Piano "A Whole in Twelve": No. 7, Clouds
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Miniatures for Piano "A Whole in Twelve": No. 9, Christmas Eve
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Miniatures for Piano "A Whole in Twelve": No. 1, Autumnal
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Miniatures for Piano "A Whole in Twelve": No. 3, Longing
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Miniatures for Piano "A Whole in Twelve": No. 4, Dilemma
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Miniatures for Piano "A Whole in Twelve": No. 5, Arousal
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Miniatures for Piano "A Whole in Twelve": No. 10, Totality
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Miniatures for Piano "A Whole in Twelve": No. 12, Finality
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Barkhudarian: 4 Oriental Dances, 12 Armenian Dances & Piano Pieces
Feelings of the Ocean (Inspired by ‘The Outlaw Ocean’ a book by Ian Urbina)