[{"type":"report","id":"BLC-STUDY-0312","title":"Add `blockHash` to defaultBlock methods","author":[{"literal":"Charles Cooper"}],"issued":{"date-parts":[[2019]]},"publisher":"Charles Cooper","URL":"https://eips.ethereum.org/EIPS/eip-1898","note":"Rights status: Official external source only. Not a licence to republish the paper."}]