Emil de Cou is an American conductor who became associate conductor of the National Symphony Orchestra (John F. Kennedy Center for the Performing Arts) in September 2003. He has led the orchestra on r
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 0xc5567901b05f27cf5278a5a47aa305c6aaca24d9ebf7f7505aa21d5ac4753853. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/50d93f9f-facf-4dd8-8cab-b86508f29413.json and https://artists.proofprofile.net/proofs/artist/50d93f9f-facf-4dd8-8cab-b86508f29413.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).