Dave Ballou is an American jazz trumpeter and professor of music at Towson University, in Maryland. Early life and education Ballou was born in Peace Dale, Rhode Island. He started playing the trum
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 0x974800eeeb839f4f7a490a36fa23e3afe33f25e2644f8ee5364a832faf603780. 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/3e3e74c8-125d-45ca-b5cb-a5f1ccfc9878.json and https://artists.proofprofile.net/proofs/artist/3e3e74c8-125d-45ca-b5cb-a5f1ccfc9878.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).