change ancestorOf to return false if the ctxKey is not present

enable signed_list verifier on mainnet and testnet

change to chainweb 231

Add pact 5.4 flag to runGenesis

update chainweb to pact 5.4

implement header oracle and spv expiration window

add minimalBlockHeaderHistory constant to chainweb version

add Chainweb232Pact

gas parameters definition as newtype

changed Text module imports

simplified gas model

simplified gas model

proper test case with bad signature

removed test with malformed signature

removed shortcircuit