A is an ensemble of wind instruments (usually about five to eight players) employed by an aristocratic patron, particularly during the Classical era of the 18th century. The Harmonie would be employe
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 0x8232d3dce8823463437c766b1b2e1b278b35168aabffba6a1b4f61c1062b3404. Chain 2 (Bitcoin): anchored in block 953605 (2026-06-14T07:39:50Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/114c3d0b-5584-4510-9a1e-76fbe6d33009.json and https://artists.proofprofile.net/proofs/artist/114c3d0b-5584-4510-9a1e-76fbe6d33009.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).