William is a masculine given name of Germanic origin. It became popular in England after the Norman conquest in 1066,All Things William, "Meaning & Origin of the Name" and remained so throughout the M
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 0xd63a00a66f23282e16a7813c1c70befde0abcfb4e1e7626dd5205fa68ef0fb5a. Chain 2 (Bitcoin): anchored in block 954500 (2026-06-20T04:47:29Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9d84c6d5-b9cc-4f11-89ae-6e0b39511189.json and https://artists.proofprofile.net/proofs/artist/9d84c6d5-b9cc-4f11-89ae-6e0b39511189.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).