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 0x722da3f93cac20334b2fef72ab9e589518d39ed4bfb8629fe19688f14a9a4c17. Chain 2 (Bitcoin): anchored in block 954513 (2026-06-20T06:31:18Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9d9ea814-6b44-44b2-afad-e914134d6e00.json and https://artists.proofprofile.net/proofs/artist/9d9ea814-6b44-44b2-afad-e914134d6e00.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Ballet Class Music : Vaganova 1&2 Grade, Center&Point Work
Ballet Class Music : Vaganova 1&2 Grade, Barre Work