> check_tx 0x00
-> code: OK

> check_tx 0xff
-> code: OK

> deliver_tx 0x00
-> code: OK

> check_tx 0x00
-> code: OK

> deliver_tx 0x01
-> code: OK

> deliver_tx 0x04
-> code: OK

> info 
-> code: OK
-> data: {"hashes":0,"txs":3}
-> data.hex: 0x7B22686173686573223A302C22747873223A337D