1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0xff8cf1c720c91d8351e13b2016adbe7d2caafe88482b559108e76346df467b7a. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/40b55cd8-4ff8-4601-921b-c61e40b1cbee.json and https://artists.proofprofile.net/proofs/artist/40b55cd8-4ff8-4601-921b-c61e40b1cbee.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
in Stil Moderno: The Fantastic Style in Seventeenth-Century Italy
"Torna, deh, torna" Aria sopra la Romanesca
Toccata I (Book 1), Toccata II (Book 2), Cento Partite sopra Passacagli
Jean-Fery Rebel - Sonatas pour le Violon & Suite in G
Sonata VI in B Minor: III. Gracieusement
Jacquet de la Guerre: Sonates pour le Viollon
Sonate III in F Major: II. Presto - Adagio
Il Giardino Corrupto: 17th-Century German Chamber Music