https://forum.dfinity.org/t/assigned-icdevs-org-bounty-31-merkle-patricia-tree-motoko-6-000/17883/15
https://forum.dfinity.org/t/completed-icdevs-org-bounty-28-evm-utility-canister-6-000/17880/25
https://forum.dfinity.org/t/open-icdevs-org-bounty-16-evm-witness-library-8-000/11346/11