---- now at my client
"blockchain_head_block_num": 1283143,
"blockchain_head_block_age": "9 seconds old",
"blockchain_head_block_timestamp": "2014-12-17T07:20:20",
"blockchain_average_delegate_participation": "37.83 %",
---- now at bitsharesblocks.com
blockchain_head_block_num -> 1283222
blockchain_average_delegate_participation -> 63.13%