History of certify 4 changes

In crates/hub/src/keyless.rs, lines 165–247 on a3ba7cc106738520cd2c50e68b9b31b1bcf006364c25c875770cc3541c6732bf. 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.