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 0x0707ed967f14c32d63dc74a43818e700b9da35a17ea274c250294d79f383da3f. Chain 2 (Bitcoin): anchored in block 954346 (2026-06-19T03:51:26Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/97e96169-9d25-4c90-8ece-6bb357feef04.json and https://artists.proofprofile.net/proofs/artist/97e96169-9d25-4c90-8ece-6bb357feef04.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
J. Offenbach op. 49 transcribed for two violins
Kontakion of the departed/Orthodox chant
One hour of byzantine and medieval violin music
Rachmaninoff Bogoritse Devo for violin ensemble
Strauss (Tritsch Tratsch Polka arranged for violins ensemble)
Guillaume de Machaut (medieval chant je vivroie liement)
Carmen Intermezzo transposed for violin arrangement
Tchaikovsky -Nutcracker (Dance of the Reed transposed for violins)
Scarlatti (piano sonata transposed for two violins)
Scott Joplin (Maple Leaf Rag for two violins)
Scarlatti (Piano sonata in G major transposed for violins)
Byzantine song from the 4th century/violin music
Une routine manouche, improvisation for 2 violins
Telemann concerto for 4 violins first movement
Bach concerto for Two Violins First movement
Adam de la Halle 13th century medieval song
Grigoras Dinicu Postal Carriage/Caruta Postei
Telemann concerto for 4 violins third movement
Telelmann concerto for 4 violins second movement
Mille regretz Josquin des Prez(15th century song)
Charles Gounod - Ave Maria for Violin and Organ
Late Baroque Period /Telemann concerto for 4 violins / 3rd movement
Eternal Light - 5 Christmas byzantin old songs
Traviata Brilliant Fantasy .Brindisi Theme