> check_tx 0x00
-> code: OK

> check_tx 0xff
-> code: OK

> finalize_block 0x00
-> code: OK

> check_tx 0x00
-> code: OK

> finalize_block 0x01
-> code: OK

> finalize_block 0x04
-> code: OK

> info 
-> code: OK
-> data: {"size":3}
-> data.hex: 0x7B2273697A65223A337D