History of certify 4 changes

In crates/hub/src/keyless.rs, lines 165–247 on e4203e141e90bb28409a102a527e3af1b341c1d61a1091793b724a58fbbd1ad0. Every change that wrote or deleted one of these lines, or deleted a line from between them. Exact, because each line keeps its identity across edits; edits elsewhere in the file are not here. Also: oxy log -L 165,247:crates/hub/src/keyless.rs.