Kenneth Joseph Howard Jr. (March 28, 1944 – March 23, 2016) was an American actor. He was known for his roles as Thomas Jefferson in 1776 (1972) and as high school basketball coach and former Chicago
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8851a4c4749fea9ce61a3c1ce0029f3cac960237d492c5e210943d54e83a13e. Chain 2 (Bitcoin): anchored in block 953724 (2026-06-15T01:43:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8d3c7a81-386b-44c5-97b1-d5f2dbdffd1c.json and https://artists.proofprofile.net/proofs/artist/8d3c7a81-386b-44c5-97b1-d5f2dbdffd1c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).