xclock with ssh -Xv

muzer@muzer-gentoo ~ $ xclock
debug1: client_input_channel_open: ctype x11 rchan 3 win 87380 max 16384
debug1: client_request_x11: request from ::1 46496
debug1: channel 1: new [x11]
debug1: confirm x11
X11 connection rejected because of wrong authentication.
debug1: channel 1: free: x11, nchannels 2
Error: Can't open display: localhost:10.0
muzer@muzer-gentoo ~ $