user13312: Any ideas for finding the number of Bitcoin nodes vs the number of Bitcoin pools?
Thank you!

user11412: getaddr.bitnodes.io shows only the reachable Bitcoin nodes in the network. These are nodes that make up the core data exchanges within the P2P network.
There is non-trivial distinction between mining and non-mining nodes at the protocol level among the network participants. Although having observed the first announcement of a block from a node may be a good indicator of a mining node.
It is impossible to tell the full size of the network that includes nodes behind firewall, or nodes that only accept connection from certain IP address/netblock, or nodes that have simply hit the set max. connections.

13312: <p>Any ideas for finding the number of Bitcoin nodes vs the number of Bitcoin pools?</p>

<p>Thank you!</p>
 11412: <p>getaddr.bitnodes.io shows only the reachable Bitcoin nodes in the network. These are nodes that make up the core data exchanges within the P2P network.</p>

<p>There is non-trivial distinction between mining and non-mining nodes at the protocol level among the network participants. Although having observed the first announcement of a block from a node may be a good indicator of a mining node.</p>

<p>It is impossible to tell the full size of the network that includes nodes behind firewall, or nodes that only accept connection from certain IP address/netblock, or nodes that have simply hit the set max. connections.</p>
