> set_option serial on

> check_tx 0x00

> check_tx 0xff

> deliver_tx 0x00

> check_tx 0x00
-> code: BadNonce
-> log: Invalid nonce. Expected >= 1, got 0

> deliver_tx 0x01

> deliver_tx 0x04
-> code: BadNonce
-> log: Invalid nonce. Expected 2, got 4

> info 
-> data: {"hashes":0,"txs":2}
-> data.hex: 7B22686173686573223A302C22747873223A327D