Bitcoin p2p Network Status Charts.

[fornit]

It's completely reasonable that the number of nodes steadily decreases as only up-to-date rigs are anywhere near profitable.

Bitcoiners can usually do some numbers, and even when they can't it becomes obvious at some point that it's not worth it to keep your old rig mining.

cool story bro except this counts nodes not miners 

[1715052128]

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[nibor]

It counts full clients (i.e. the official C++ version).

It can not count the various Android/Java (bitspinner, multibit etc..) clients that do not transmit address messages.

[muyuu]

It's completely reasonable that the number of nodes steadily decreases as only up-to-date rigs are anywhere near profitable.

Bitcoiners can usually do some numbers, and even when they can't it becomes obvious at some point that it's not worth it to keep your old rig mining.

cool story bro except this counts nodes not miners 

I understand in early times all users were both. So there is a progression to nodes vs miners with fewer nodes, and also more thin clients. I wasn't around, but I thought this was the case. Correct me if I'm wrong.

[fornit]

most likely wrong. the transition from solo to pooled mining was mostly over when these statistics began.
i think the market share of the other clients is still pretty small though it might have some effect on the statistics. imho best explanation for the decrease in nodes is that the big media attention last summer brought many new users that were only superficially interested in bitcoin but installed the client with run on startup enabled. many lost interest quickly and are now actively uninstalling or more like just switching/reinstalling operating systems and dont bother installing bitcoin again because they never really used it in the first place.

[muyuu]

most likely wrong. the transition from solo to pooled mining was mostly over when these statistics began.
i think the market share of the other clients is still pretty small though it might have some effect on the statistics. imho best explanation for the decrease in nodes is that the big media attention last summer brought many new users that were only superficially interested in bitcoin but installed the client with run on startup enabled. many lost interest quickly and are now actively uninstalling or more like just switching/reinstalling operating systems and dont bother installing bitcoin again because they never really used it in the first place.

Are there any older stats on number of nodes available?

[fornit]

not to my knowledge, no.

[gmaxwell]

for example the number of hosts,

It's worth mentioning that the (non-listening) nodes figures will probably drop substantially as the result of some new node behavior.

First, there are the announcement changes where nodes which aren't listening or arn't current with the block-chain will not announce their addresses to the network.

Second, the stochastic address manager will likely reduce the propagation of unreachable nodes so that old and never working addresses will probably disappear faster rather than circulating through the network like undead zombies.

Some of this may be counterbalanced by UPNP fixes increasing listening nodes, but this fix needs testers and isn't yet even in the pipeline for upstream until it gets some.

[Red Emerald]

http://bitcoinstatus.rowit.co.uk/versions.html

How are you getting the versions of all the nodes?  I'm wanting to write a small script to connect to all of the nodes listed at https://en.bitcoin.it/wiki/Fallback_Nodes#Tor_nodes and get their version.

I started tinkering with libbitcoin, but it's alpha.  Since you wrote this site long before that code was around, I'm curious how you are doing it.

Also, where is version 502?  And I don't think "other" is working since it's showing zero.

[nibor]

I have a client running that connects to all the nodes on the network every 24hours and gets a version message from them.
Client is java using bitcoinj.

Specific class for this is:
http://code.google.com/p/bitcoinj/source/browse/src/com/google/bitcoin/core/VersionMessage.java

[ThePok]

downtrend seems to be stopped

[gmaxwell]

downtrend seems to be stopped

They fixed some problems the system was having, so the data looks more sane now but not completely sane.

Note, the estimates of bitcoin client are now ~worthless: A few versions ago I changed the reference client to not advertise itself unless it was listening and knew its public IP... so it's expected that that count should go way down.

[lucb1e]

Are these stats still functional? It would appear there are much less hosts than a year ago, but I read that since v0.6 it doesn't automatically connect to IRC anymore or something... Perhaps this is how the stats worked, and only some people run an old version? The website doesn't seem to suggest that's how the stats work, but still I wonder if btc is loosing users (and loosing masses, or so it would appear).

Edit: Oh, read the post above me now ^^

Note, the estimates of bitcoin client are now ~worthless

[Simon Barber]

These stats have stopped updating. Any chance of reviving them? I can take over maintenance of the code if necessary.

[weex]

I would also be interested to help make a Litecoin version of this as well as get the Bitcoin version running more smoothly.

[malevolent]

It's completely reasonable that the number of nodes steadily decreases as only up-to-date rigs are anywhere near profitable.
Bitcoiners can usually do some numbers, and even when they can't it becomes obvious at some point that it's not worth it to keep your old rig mining.

cool story bro except this counts nodes not miners 

I understand in early times all users were both. So there is a progression to nodes vs miners with fewer nodes, and also more thin clients. I wasn't around, but I thought this was the case. Correct me if I'm wrong.

Not necessarily all users. The default client had an in-built mining option but not everyone was willing to run it non-stop when bitcoins where worthless (especially laptop users would get easily discouraged after noticing the extra heat).