Hello,

I've got some questions related to P2Pool:

1) On the web interface of my node I find the following in relation to the shares: "Best share", "Verified heads", "Heads", "Verified tails", "Tails". I'm not sure I fully understand what they mean.
      *I suppose "best share" is the last share added to the sharechain (I'm I right about this???).
      *"Verified heads" contains several shares. I see that one of these shares is the one mentioned in "best share". So what are the other      shares mentioned? Other heads that are or will be orphaned or so?
      *What is the difference between "Verified heads" and "heads"?
      *What are the "Verified Tails" and "Tails"?

2) When I look to the "Best share" share, then I see stuff like "Time first seen", "Peer first received from", "Timestamp".
      *I suppose "Time first seen" gives the time that my node received a Inv (or the p2pool equivalent) from another node containing the hash of the share. Is this correct? Or is it the time when my node has completely downloaded the share?
      *"Peer first received from" gives then probably the node that has send my node the Inv containing the share.
      *"Timestamp" is the timestamp from the node that has found the share I guess. But this timestamp probably depends on the accuracy of that nodes clock, and can in theory deviate from reality?

3) Say for example that I want to know the time it takes my node to receive the latest share of the sharechain (so I want to know the time it takes my node to converge to the consensus sharechain). I probably can use the timestamp of the share gegenerated by the node that found the share, as it will be very close to the moment that it sends it to the rest of the network. So if I can also get the time that my node has downloaded the share, and restarts its mining work on top of the new share, I can in principal determine the time that it took the share to propagate from the node that has found the share to my node, and as such I can determine the "dwell time" of my node. Is this correct?

4) If my reasoning in point 3 is correct, I just need to find the time when my node is finished downloading the new share, and the share is added to the local sharechain. Is there a way to access the sharechain of my node directly through a log file or something? I know that p2pool creates logs in the directory /p2pool/data/bitcoin/, and occasionaly I find references to shares downloaded and stuff like that in the output. But is there another file for the sharechain, that contains time data of when a new share is downloaded and added to the share chain?

Thank you in advance