thumb|right|alt=Female WAVE officer sitting at her desk in dress blue uniform |Captain Mildred H. McAfee was the first director of the WAVES (1942–1945). The photo was taken in 1942 or 1943, when she
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 0x7ec02c2348aa22d23667f3ec22de643bfc5918ab9a2769cc9d81d85e22fc73c8. Chain 2 (Bitcoin): anchored in block 953742 (2026-06-15T04:47:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/867f3268-e73c-4fc9-b309-94586bcde6e8.json and https://artists.proofprofile.net/proofs/artist/867f3268-e73c-4fc9-b309-94586bcde6e8.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).