Example of current return for `print_block 912345`:
timestamp: 1452793716
previous hash:
b61c58b2e0be53fad5ef9d9731a55e8a81d972b8d90ed07c04fd37ca6403ff78
nonce: 1646
is orphan: 0
height: 912345
depth: 85434
hash:
e22cf75f39ae720e8b71b3d120a5ac03f0db50bba6379e2850975b4859190bc6difficul
ty: 815625611
reward: 7388968946286
{
"major_version": 1,
"minor_version": 2,
…
Without `std::endl`, the difficulty gets smashed on the end of the hash.