Pool: stratum+tcp://p2pool.611.to:9332
Worker: your_BTC_address
Password: xxx (whatever you like)
Efficiency tuning for TH miners: append /8000+1024 to your worker username.
Supports merge mining together with
To claim your SILs (611 coins), take a look on this thread on Bitcointalk.
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Score and performance details on P2Pool.co Node Scanner: http://p2pool.co/
UPDATE
BTC P2Pool.611.to is now running p2pool.jramos, a compatible fork of P2Pool with an adaptive difficulty patch.
P2Pool.611.to is an open pool. Use your BTC address as username with any password you like to test the performance with your mining equipment.