I just generated 47457
get_block 47457
{
  "previous": "0000b96067bc8afae17b8e6b9a5db4312848b454",
  "timestamp": "2015-09-03T20:49:30",
  "witness": "1.6.1527",
  "transaction_merkle_root": "00https://bitsharestalk.org/Themes/default/images/bbc/left.gif00000000000000000000000000000000000000",
  "extensions": [],
  "witness_signature": "1f33614ffcb1e2b63110f6b0ed873a6fca3350ce0f66167505d8b11e60489f44f616201cc003c02dee28160722fcd99b4796929ffd630c1b7ba2c3fc9948d558e4",
  "transactions": [],
  "block_id": "0000b96116fe0ebf0f0a0afa47d54936287de751",
  "signing_key": "0321731744e219f69c9dd5cf43127205da272ca02d7927b4f0a90a33e34a812fee"
}
Is there any easy way to check witness production?