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Date: Thu, 19 Feb 2015 11:37:17 +0000 (UTC)
From: Thy Shizzle <thashiznets@yahoo.com.au>
To: "bitcoin-development@lists.sourceforge.net\" ;
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Subject: Re: [Bitcoin-development] What's what with addr relaying?
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------=_Part_2420830_2017125422.1424345837138
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Oh and I realised I stuffed up the subject and it talks about the addr rela=
y but I actually answered my own question on the addr relaying, I had just =
miss interpreted one document I thought it was talking about subtracting 2 =
hours before relaying but I see we subtract 2 hours on receipt not relay=C2=
=A0because the if it hadn't been seen for 60 minutes previously it now beco=
mes 3 hours and we use but don't relay makes sense.=20

     On Thursday, 19 February 2015, 22:33, Thy Shizzle <thashiznets@yahoo.c=
om.au> wrote:
  =20
=20

  Hi, plugging away at my C# Bitcoin node "Lego.NET" Thashiznets/Lego.NET n=
ow I am currently working on addr relaying. I am as we speak wiring up my D=
B in Azure, and ready to start plopping net_addrs in my DB, all good howeve=
r I'm reading two different specification docs that seem to be wildly varyi=
ng. I mean the first one here Developer Reference - Bitcoin=C2=A0didn't men=
tion that version message now has the 4 byte checksum and no=C2=A0time in t=
he net_addrs=C2=A0and I was getting reject malformed=C2=A0messages until I =
found the other document which informed me we now use the 4 byte checksum i=
n version and no time in the net-addrs in version message. So=C2=A0I solved=
 that and here is the other doco. I have found other variances like one doc=
ument said that the heartbeat AND disconnect were 30 minutes, but then in t=
he other document I read that Heartbeat is 30 minutes and disconnect is 90 =
minutes which seems far more sensible so I went with that and modified my c=
ode. Is there any other variations between these two spec docos=C2=A0that p=
erhaps some of you devs know about that I need to look out for! Thanks! Shi=
zzle.
| =C2=A0 |
| =C2=A0 |  | =C2=A0 | =C2=A0 | =C2=A0 | =C2=A0 | =C2=A0 |
| Thashiznets/Lego.NETLego.NET - A C# full node for processing the Bitcoin =
block chain |
|  |
| View on github.com | Preview by Yahoo |
|  |
| =C2=A0 |

 =C2=A0
| =C2=A0 |
| =C2=A0 |  | =C2=A0 | =C2=A0 | =C2=A0 | =C2=A0 | =C2=A0 |
| Developer Reference - BitcoinBETA: This documentation has not been extens=
ively reviewed by Bitcoin experts and so likely contains numerous errors. P=
lease use the Issue and Edit links on the bot... |
|  |
| View on bitcoin.org | Preview by Yahoo |
|  |
| =C2=A0 |

 =C2=A0
| =C2=A0 |
| =C2=A0 | =C2=A0 | =C2=A0 | =C2=A0 | =C2=A0 |
| Satoshi Client Node Discovery - BitcoinContents 1 Overview 2 Handling Mes=
sage "getaddr" 3 Discovery Methods 3.1 Local Client's External Address 3.2 =
Connect Callback Address 3.3 IRC Addresses 3.4 DNS Addresses  |
|  |
| View on en.bitcoin.it | Preview by Yahoo |
|  |
| =C2=A0 |

 =C2=A0 =C2=A0

=20
   
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<html><body><div style=3D"color:#000; background-color:#fff; font-family:He=
lvetica Neue-Light, Helvetica Neue Light, Helvetica Neue, Helvetica, Arial,=
 Lucida Grande, Sans-Serif;font-size:16px"><div id=3D"yui_3_16_0_1_14243445=
23419_8783" dir=3D"ltr"><span id=3D"yui_3_16_0_1_1424344523419_9392">Oh and=
 I realised I stuffed up the subject and it talks about the addr relay but =
I actually answered my own question on the addr relaying, I had just miss i=
nterpreted one document I thought it was talking about subtracting 2 hours =
before relaying but I see we subtract 2 hours on receipt not relay&nbsp;bec=
ause the if it hadn't been seen for 60 minutes previously it now becomes 3 =
hours and we use but don't relay makes sense.</span></div> <div class=3D"qt=
dSeparateBR"><br><br></div><div class=3D"yahoo_quoted" style=3D"display: bl=
ock;"> <div style=3D"font-family: Helvetica Neue-Light, Helvetica Neue Ligh=
t, Helvetica Neue, Helvetica, Arial, Lucida Grande, Sans-Serif; font-size: =
16px;"> <div style=3D"font-family: HelveticaNeue, Helvetica Neue, Helvetica=
, Arial, Lucida Grande, Sans-Serif; font-size: 12px;"> <div dir=3D"ltr"> <f=
ont face=3D"Arial" size=3D"2"> On Thursday, 19 February 2015, 22:33, Thy Sh=
izzle &lt;thashiznets@yahoo.com.au&gt; wrote:<br> </font> </div> <blockquot=
e style=3D"padding-left: 5px; margin-top: 5px; margin-left: 5px; border-lef=
t-color: rgb(16, 16, 255); border-left-width: 2px; border-left-style: solid=
;">  <br><br> <div class=3D"y_msg_container"><div id=3D"yiv5344446057"><div=
><div style=3D"color: rgb(0, 0, 0); font-family: Helvetica Neue-Light, Helv=
etica Neue Light, Helvetica Neue, Helvetica, Arial, Lucida Grande, Sans-Ser=
if; font-size: 16px; background-color: rgb(255, 255, 255);"><div id=3D"yiv5=
344446057yui_3_16_0_1_1424344523419_2247" dir=3D"ltr">  Hi, plugging away a=
t my C# Bitcoin node "Lego.NET" <a id=3D"yiv5344446057ms__id2865" href=3D"h=
ttps://github.com/Thashiznets/Lego.NET" target=3D"_blank" rel=3D"nofollow">=
Thashiznets/Lego.NET</a> now I am currently working on addr relaying. I am =
as we speak wiring up my DB in Azure, and ready to start plopping net_addrs=
 in my DB, all good however I'm reading two different specification docs th=
at seem to be wildly varying. I mean the first one here <a id=3D"yiv5344446=
057ms__id3491" href=3D"https://bitcoin.org/en/developer-reference#addr" tar=
get=3D"_blank" rel=3D"nofollow">Developer Reference - Bitcoin</a>&nbsp;didn=
't mention that version message now has the 4 byte checksum and no&nbsp;tim=
e in the net_addrs&nbsp;and I was getting reject malformed&nbsp;messages un=
til I found the other document which informed me we now use the 4 byte chec=
ksum in version and no time in the net-addrs in version message. So&nbsp;I =
solved that and here is the other doco. I have found other variances like o=
ne document said that the heartbeat AND disconnect were 30 minutes, but the=
n in the other document I read that Heartbeat is 30 minutes and disconnect =
is 90 minutes which seems far more sensible so I went with that and modifie=
d my code. Is there any other variations between these two spec docos&nbsp;=
that perhaps some of you devs know about that I need to look out for! Thank=
s! Shizzle.</div><div class=3D"yiv5344446057link-enhancr-attachment yiv5344=
446057link-enhancr-element" id=3D"yiv5344446057enhancrCard_0" style=3D'widt=
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"yiv5344446057link-enhancr-element" id=3D"yiv5344446057yui_3_16_0_1_1424344=
523419_2333" style=3D"height: 1px; font-size: 1px; border-collapse: collaps=
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th: 1px; font-size: 1pt; background-color: rgb(229, 229, 229);">&nbsp;</div=
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i_3_16_0_1_1424344523419_2390" style=3D"width: 168px; height: 168px; vertic=
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style=3D"color: rgb(0, 0, 0); text-decoration: none;" href=3D"https://githu=
b.com/Thashiznets/Lego.NET" target=3D"_blank" rel=3D"nofollow"><img width=
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v class=3D"yiv5344446057link-enhancr-element" style=3D"width: 1px; font-siz=
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344523419_2399" style=3D"width: 14px; font-size: 0pt; border-collapse: coll=
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135px; line-height: 16.5px; background-color: rgb(255, 255, 255);"><div cla=
ss=3D"yiv5344446057link-enhancr-element" id=3D"yiv5344446057yui_3_16_0_1_14=
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ard-urlWrapper yiv5344446057link-enhancr-element" id=3D"yiv5344446057yui_3_=
16_0_1_1424344523419_2327" style=3D"color: rgb(0, 0, 0); line-height: 100%;=
 font-size: 18px; text-decoration: none; display: block;" href=3D"https://g=
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ass=3D"yiv5344446057link-enhancr-element yiv5344446057link-enhancr-card-tit=
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x 0px 3px; color: rgb(0, 0, 0); line-height: 21px; overflow: hidden; font-s=
ize: 18px; font-weight: normal; display: inline-block; max-height: 43px;">T=
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description yiv5344446057link-enhancr-element" id=3D"yiv5344446057yui_3_16_=
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px; overflow: hidden; font-family: "Georgia", "Times", "Times New Roman", "=
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rocessing the Bitcoin block chain</div></div></div></td></tr><tr id=3D"yiv5=
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old;">github.com</span></span></span></a></div></td><td class=3D"yiv5344446=
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" style=3D'width: 100px; font-family: "Arial", "Helvetica Neue", "Helvetica=
", "sans-serif"; vertical-align: middle;'><div class=3D"yiv5344446057link-e=
nhancr-element yiv5344446057link-enhancr-preview-wrapper" id=3D"yiv53444460=
57yui_3_16_0_1_1424344523419_2353" style=3D"text-align: right; line-height:=
 11px; overflow: hidden; font-size: 0pt; max-height: 13px; min-width: 80px;=
 max-width: 100px;"><span class=3D"yiv5344446057link-enhancr-element yiv534=
4446057link-enhancr-preview-by yiv5344446057link-enhancr-mobile-no-resize" =
id=3D"yiv5344446057yui_3_16_0_1_1424344523419_2359" style=3D"color: rgb(153=
, 153, 153); line-height: 11px; font-size: 9px; vertical-align: middle;">Pr=
eview by Yahoo</span></div></td></tr><tr id=3D"yiv5344446057yui_3_16_0_1_14=
24344523419_2362"><td class=3D"yiv5344446057link-enhancr-element" id=3D"yiv=
5344446057yui_3_16_0_1_1424344523419_2361" style=3D"height: 9px; font-size:=
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span=3D"2"><div class=3D"yiv5344446057link-enhancr-element" id=3D"yiv534444=
6057yui_3_16_0_1_1424344523419_2360" style=3D"height: 9px; font-size: 9pt; =
background-color: rgb(255, 255, 255);"></div></td></tr><tr class=3D"yiv5344=
446057link-enhancr-element" id=3D"yiv5344446057yui_3_16_0_1_1424344523419_2=
587"><td class=3D"yiv5344446057link-enhancr-element" id=3D"yiv5344446057yui=
_3_16_0_1_1424344523419_2586" style=3D"height: 1px; font-size: 1px; border-=
collapse: collapse; background-color: rgb(229, 229, 229);" colspan=3D"8"><d=
iv class=3D"yiv5344446057link-enhancr-element" id=3D"yiv5344446057yui_3_16_=
0_1_1424344523419_2585" style=3D"height: 1px; line-height: 0px; font-size: =
1px; background-color: rgb(229, 229, 229);">&nbsp;</div></td></tr></tbody><=
/table></div><div id=3D"yiv5344446057yui_3_16_0_1_1424344523419_2247"> &nbs=
p;</div><div class=3D"yiv5344446057link-enhancr-attachment yiv5344446057lin=
k-enhancr-element" id=3D"yiv5344446057enhancrCard_1" style=3D'width: 450px;=
 font-family: "Georgia", "Times", "Times New Roman", "serif"; margin-top: 5=
px; margin-bottom: 5px; background-color: rgb(255, 255, 255);'><table class=
=3D"yiv5344446057link-enhancr-element" id=3D"yiv5344446057yui_3_16_0_1_1424=
344523419_2441" style=3D"width: 450px; height: 170px; display: block;" bord=
er=3D"0" cellspacing=3D"0" cellpadding=3D"0"><tbody id=3D"yiv5344446057yui_=
3_16_0_1_1424344523419_2440"><tr class=3D"yiv5344446057link-enhancr-element=
" id=3D"yiv5344446057yui_3_16_0_1_1424344523419_2475"><td class=3D"yiv53444=
46057link-enhancr-element" id=3D"yiv5344446057yui_3_16_0_1_1424344523419_24=
74" style=3D"height: 1px; font-size: 1px; border-collapse: collapse; backgr=
ound-color: rgb(229, 229, 229);" colspan=3D"8"><div class=3D"yiv5344446057l=
ink-enhancr-element" id=3D"yiv5344446057yui_3_16_0_1_1424344523419_2473" st=
yle=3D"height: 1px; line-height: 0px; font-size: 1px; background-color: rgb=
(229, 229, 229);">&nbsp;</div></td></tr><tr class=3D"yiv5344446057link-enha=
ncr-element" id=3D"yiv5344446057yui_3_16_0_1_1424344523419_2472"><td class=
=3D"yiv5344446057link-enhancr-element" style=3D"width: 1px; font-size: 1pt;=
 border-collapse: collapse; background-color: rgb(229, 229, 229);" rowspan=
=3D"5"><div class=3D"yiv5344446057link-enhancr-element" style=3D"width: 1px=
; font-size: 1pt; background-color: rgb(229, 229, 229);">&nbsp;</div></td><=
td class=3D"yiv5344446057link-enhancr-element" id=3D"yiv5344446057yui_3_16_=
0_1_1424344523419_2584" style=3D"width: 168px; height: 168px; vertical-alig=
n: middle; border-collapse: collapse; background-color: rgb(0, 0, 0);" rows=
pan=3D"5"><div align=3D"center" class=3D"yiv5344446057link-enhancr-element"=
 id=3D"yiv5344446057yui_3_16_0_1_1424344523419_2583" style=3D"width: 168px;=
"><a class=3D"yiv5344446057link-enhancr-card-urlWrapper yiv5344446057link-e=
nhancr-element" id=3D"yiv5344446057yui_3_16_0_1_1424344523419_2582" style=
=3D"color: rgb(0, 0, 0); text-decoration: none;" href=3D"https://bitcoin.or=
g/en/developer-reference#addr" target=3D"_blank" rel=3D"nofollow"><img widt=
h=3D"168" height=3D"168" class=3D"yiv5344446057link-enhancr-thumbnail-image=
 yiv5344446057link-enhancr-element" id=3D"yiv5344446057yui_3_16_0_1_1424344=
523419_2581" style=3D"margin: auto; display: block;" alt=3D"image" src=3D"h=
ttps://bitcoin.org/img/icons/opengraph.png" data-id=3D"62bab859-8657-857a-b=
06c-1113ac40900a"></a></div></td><td class=3D"yiv5344446057link-enhancr-ele=
ment" style=3D"width: 1px; font-size: 0pt; border-collapse: collapse; backg=
round-color: rgb(229, 229, 229);" rowspan=3D"5"><div class=3D"yiv5344446057=
link-enhancr-element" style=3D"width: 1px; font-size: 1pt; background-color=
: rgb(229, 229, 229);">&nbsp;</div></td><td class=3D"yiv5344446057link-enha=
ncr-element" id=3D"yiv5344446057yui_3_16_0_1_1424344523419_2580" style=3D"w=
idth: 14px; font-size: 0pt; border-collapse: collapse; background-color: rg=
b(255, 255, 255);" rowspan=3D"5"><div class=3D"yiv5344446057link-enhancr-el=
ement" style=3D"width: 14px; font-size: 14pt; background-color: rgb(255, 25=
5, 255);">&nbsp;</div></td><td class=3D"yiv5344446057link-enhancr-element" =
id=3D"yiv5344446057yui_3_16_0_1_1424344523419_2471" style=3D"height: 6px; f=
ont-size: 0pt; border-collapse: collapse; background-color: rgb(255, 255, 2=
55);" colspan=3D"2"><div class=3D"yiv5344446057link-enhancr-element" id=3D"=
yiv5344446057yui_3_16_0_1_1424344523419_2470" style=3D"height: 6px; font-si=
ze: 6pt; background-color: rgb(255, 255, 255);">&nbsp;</div></td><td class=
=3D"yiv5344446057link-enhancr-element" id=3D"yiv5344446057yui_3_16_0_1_1424=
344523419_2551" style=3D"width: 20px; font-size: 0pt; border-collapse: coll=
apse; background-color: rgb(255, 255, 255);" rowspan=3D"5"><div class=3D"yi=
v5344446057link-enhancr-element" style=3D"width: 20px; font-size: 20pt; bac=
kground-color: rgb(255, 255, 255);">&nbsp;</div></td><td width=3D"1" class=
=3D"yiv5344446057link-enhancr-element" style=3D"width: 1px; font-size: 1pt;=
 border-collapse: collapse; background-color: rgb(229, 229, 229);" rowspan=
=3D"5"><div class=3D"yiv5344446057link-enhancr-element" style=3D"width: 1px=
; font-size: 1pt; background-color: rgb(229, 229, 229);">&nbsp;</div></td><=
/tr><tr id=3D"yiv5344446057yui_3_16_0_1_1424344523419_2439"><td class=3D"yi=
v5344446057link-enhancr-element" id=3D"yiv5344446057yui_3_16_0_1_1424344523=
419_2438" style=3D'width: 100%; font-family: "Georgia", "Times", "Times New=
 Roman", "serif"; vertical-align: middle;' colspan=3D"2"><div class=3D"yiv5=
344446057link-enhancr-text-part yiv5344446057link-enhancr-element" id=3D"yi=
v5344446057yui_3_16_0_1_1424344523419_2437" style=3D"width: 245px; height: =
135px; line-height: 16.5px; background-color: rgb(255, 255, 255);"><div cla=
ss=3D"yiv5344446057link-enhancr-element" id=3D"yiv5344446057yui_3_16_0_1_14=
24344523419_2467"><span class=3D"yiv5344446057link-enhancr-element yiv53444=
46057icon  yiv5344446057icon-shrink yiv5344446057link-enhancr-toggle"></spa=
n><span class=3D"yiv5344446057link-enhancr-element yiv5344446057icon yiv534=
4446057icon-close yiv5344446057link-enhancr-delete" id=3D"yiv5344446057yui_=
3_16_0_1_1424344523419_2552"></span><a class=3D"yiv5344446057link-enhancr-c=
ard-urlWrapper yiv5344446057link-enhancr-element" id=3D"yiv5344446057yui_3_=
16_0_1_1424344523419_2469" style=3D"color: rgb(0, 0, 0); line-height: 100%;=
 font-size: 18px; text-decoration: none; display: block;" href=3D"https://b=
itcoin.org/en/developer-reference#addr" target=3D"_blank" rel=3D"nofollow">=
<span class=3D"yiv5344446057link-enhancr-element yiv5344446057link-enhancr-=
card-title" id=3D"yiv5344446057yui_3_16_0_1_1424344523419_2468" style=3D"ma=
rgin: 0px 0px 3px; color: rgb(0, 0, 0); line-height: 21px; overflow: hidden=
; font-size: 18px; font-weight: normal; display: inline-block; max-height: =
43px;">Developer Reference - Bitcoin</span></a><div class=3D"yiv5344446057l=
ink-enhancr-card-description yiv5344446057link-enhancr-element" id=3D"yiv53=
44446057yui_3_16_0_1_1424344523419_2466" style=3D'color: rgb(153, 153, 153)=
; line-height: 20px; overflow: hidden; font-family: "Georgia", "Times", "Ti=
mes New Roman", "serif"; font-size: 13px; max-height: 81px;'>BETA: This doc=
umentation has not been extensively reviewed by Bitcoin experts and so like=
ly contains numerous errors. Please use the Issue and Edit links on the bot=
...</div></div></div></td></tr><tr><td class=3D"yiv5344446057link-enhancr-e=
lement" style=3D"height: 4px; font-size: 0pt; border-collapse: collapse; ba=
ckground-color: rgb(255, 255, 255);" colspan=3D"2"><div class=3D"yiv5344446=
057link-enhancr-element" style=3D"height: 4px; font-size: 4pt; background-c=
olor: rgb(255, 255, 255);"></div></td></tr><tr><td class=3D"yiv5344446057li=
nk-enhancr-element" style=3D'font-family: "Arial", "Helvetica Neue", "Helve=
tica", "sans-serif"; vertical-align: middle;'><div class=3D"yiv5344446057li=
nk-enhancr-element" style=3D"font-size: 0pt;"><a class=3D"yiv5344446057link=
-enhancr-card-url yiv5344446057link-enhancr-element" style=3D"color: black;=
 text-decoration: none; cursor: pointer;" href=3D"https://bitcoin.org/en/de=
veloper-reference#addr" target=3D"_blank" rel=3D"nofollow"><span class=3D"y=
iv5344446057link-enhancr-element yiv5344446057link-enhancr-view-on" id=3D"y=
iv5344446057yui_3_16_0_1_1424344523419_2378" style=3D"line-height: 11px; ov=
erflow: hidden; display: inline-block; max-height: 13px; min-width: 85px; m=
ax-width: 145px;"><span class=3D"yiv5344446057link-enhancr-element yiv53444=
46057link-enhancr-mobile-no-resize" style=3D"color: rgb(153, 153, 153); lin=
e-height: 11px; font-size: 9px; vertical-align: middle;">View on <span clas=
s=3D"yiv5344446057link-enhancr-view-on-domain" style=3D"font-weight: bold;"=
>bitcoin.org</span></span></span></a></div></td><td class=3D"yiv5344446057l=
ink-enhancr-element" style=3D'width: 100px; font-family: "Arial", "Helvetic=
a Neue", "Helvetica", "sans-serif"; vertical-align: middle;'><div class=3D"=
yiv5344446057link-enhancr-element yiv5344446057link-enhancr-preview-wrapper=
" style=3D"text-align: right; line-height: 11px; overflow: hidden; font-siz=
e: 0pt; max-height: 13px; min-width: 80px; max-width: 100px;"><span class=
=3D"yiv5344446057link-enhancr-element yiv5344446057link-enhancr-preview-by =
yiv5344446057link-enhancr-mobile-no-resize" style=3D"color: rgb(153, 153, 1=
53); line-height: 11px; font-size: 9px; vertical-align: middle;">Preview by=
 Yahoo</span></div></td></tr><tr><td class=3D"yiv5344446057link-enhancr-ele=
ment" style=3D"height: 9px; font-size: 0pt; border-collapse: collapse; back=
ground-color: rgb(255, 255, 255);" colspan=3D"2"><div class=3D"yiv534444605=
7link-enhancr-element" style=3D"height: 9px; font-size: 9pt; background-col=
or: rgb(255, 255, 255);"></div></td></tr><tr class=3D"yiv5344446057link-enh=
ancr-element"><td class=3D"yiv5344446057link-enhancr-element" style=3D"heig=
ht: 1px; font-size: 1px; border-collapse: collapse; background-color: rgb(2=
29, 229, 229);" colspan=3D"8"><div class=3D"yiv5344446057link-enhancr-eleme=
nt" style=3D"height: 1px; line-height: 0px; font-size: 1px; background-colo=
r: rgb(229, 229, 229);">&nbsp;</div></td></tr></tbody></table></div><div id=
=3D"yiv5344446057yui_3_16_0_1_1424344523419_2247"> &nbsp;</div><div class=
=3D"yiv5344446057link-enhancr-attachment yiv5344446057link-enhancr-element"=
 id=3D"yiv5344446057enhancrCard_4" style=3D'width: 450px; font-family: "Geo=
rgia", "Times", "Times New Roman", "serif"; margin-top: 5px; margin-bottom:=
 5px; background-color: rgb(255, 255, 255);'><table class=3D"yiv5344446057l=
ink-enhancr-element" style=3D"width: 450px; height: auto; display: block;" =
border=3D"0" cellspacing=3D"0" cellpadding=3D"0"><tbody><tr class=3D"yiv534=
4446057link-enhancr-element"><td class=3D"yiv5344446057link-enhancr-element=
" style=3D"height: 1px; font-size: 1px; border-collapse: collapse; backgrou=
nd-color: rgb(229, 229, 229);" colspan=3D"7"><div class=3D"yiv5344446057lin=
k-enhancr-element" style=3D"height: 1px; line-height: 0px; font-size: 1px; =
background-color: rgb(229, 229, 229);">&nbsp;</div></td></tr><tr class=3D"y=
iv5344446057link-enhancr-element"><td class=3D"yiv5344446057link-enhancr-el=
ement" style=3D"width: 1px; font-size: 1pt; border-collapse: collapse; back=
ground-color: rgb(229, 229, 229);" rowspan=3D"5"><div class=3D"yiv534444605=
7link-enhancr-element" style=3D"width: 1px; font-size: 1pt; background-colo=
r: rgb(229, 229, 229);">&nbsp;</div></td><td class=3D"yiv5344446057link-enh=
ancr-element" style=3D"width: 14px; font-size: 0pt; border-collapse: collap=
se; background-color: rgb(255, 255, 255);" rowspan=3D"5"><div class=3D"yiv5=
344446057link-enhancr-element" style=3D"width: 14px; font-size: 14pt; backg=
round-color: rgb(255, 255, 255);">&nbsp;</div></td><td class=3D"yiv53444460=
57link-enhancr-element" style=3D"height: 6px; font-size: 0pt; border-collap=
se: collapse; background-color: rgb(255, 255, 255);" colspan=3D"2"><div cla=
ss=3D"yiv5344446057link-enhancr-element" style=3D"height: 6px; font-size: 6=
pt; background-color: rgb(255, 255, 255);">&nbsp;</div></td><td class=3D"yi=
v5344446057link-enhancr-element" style=3D"width: 20px; font-size: 0pt; bord=
er-collapse: collapse; background-color: rgb(255, 255, 255);" rowspan=3D"5"=
><div class=3D"yiv5344446057link-enhancr-element" style=3D"width: 20px; fon=
t-size: 20pt; background-color: rgb(255, 255, 255);">&nbsp;</div></td><td w=
idth=3D"1" class=3D"yiv5344446057link-enhancr-element" style=3D"width: 1px;=
 font-size: 1pt; border-collapse: collapse; background-color: rgb(229, 229,=
 229);" rowspan=3D"5"><div class=3D"yiv5344446057link-enhancr-element" styl=
e=3D"width: 1px; font-size: 1pt; background-color: rgb(229, 229, 229);">&nb=
sp;</div></td></tr><tr><td class=3D"yiv5344446057link-enhancr-element" styl=
e=3D'width: 100%; font-family: "Georgia", "Times", "Times New Roman", "seri=
f"; vertical-align: middle;' colspan=3D"2"><div class=3D"yiv5344446057link-=
enhancr-text-part yiv5344446057link-enhancr-element" style=3D"width: 414px;=
 line-height: 16.5px; background-color: rgb(255, 255, 255);"><div class=3D"=
yiv5344446057link-enhancr-element"><span class=3D"yiv5344446057link-enhancr=
-element yiv5344446057icon  yiv5344446057icon-shrink yiv5344446057link-enha=
ncr-toggle"></span><span class=3D"yiv5344446057link-enhancr-element yiv5344=
446057icon yiv5344446057icon-close yiv5344446057link-enhancr-delete"></span=
><a class=3D"yiv5344446057link-enhancr-card-urlWrapper yiv5344446057link-en=
hancr-element" style=3D"color: rgb(0, 0, 0); line-height: 100%; font-size: =
18px; text-decoration: none; display: block;" href=3D"https://en.bitcoin.it=
/wiki/Satoshi_Client_Node_Discovery" target=3D"_blank" rel=3D"nofollow"><sp=
an class=3D"yiv5344446057link-enhancr-element yiv5344446057link-enhancr-car=
d-title" style=3D"margin: 0px 0px 3px; color: rgb(0, 0, 0); line-height: 21=
px; overflow: hidden; font-size: 18px; font-weight: normal; display: inline=
-block; max-height: 43px;">Satoshi Client Node Discovery - Bitcoin</span></=
a><div class=3D"yiv5344446057link-enhancr-card-description yiv5344446057lin=
k-enhancr-element" style=3D'color: rgb(153, 153, 153); line-height: 20px; o=
verflow: hidden; font-family: "Georgia", "Times", "Times New Roman", "serif=
"; font-size: 13px; max-height: 81px;'>Contents 1 Overview 2 Handling Messa=
ge "getaddr" 3 Discovery Methods 3.1 Local Client's External Address 3.2 Co=
nnect Callback Address 3.3 IRC Addresses 3.4 DNS Addresses </div></div></di=
v></td></tr><tr><td class=3D"yiv5344446057link-enhancr-element" style=3D"he=
ight: 6px; font-size: 0pt; border-collapse: collapse; background-color: rgb=
(255, 255, 255);" colspan=3D"2"><div class=3D"yiv5344446057link-enhancr-ele=
ment" style=3D"height: 6px; font-size: 6pt; background-color: rgb(255, 255,=
 255);"></div></td></tr><tr><td class=3D"yiv5344446057link-enhancr-element"=
 style=3D'font-family: "Arial", "Helvetica Neue", "Helvetica", "sans-serif"=
; vertical-align: middle;'><div class=3D"yiv5344446057link-enhancr-element"=
 style=3D"font-size: 0pt;"><a class=3D"yiv5344446057link-enhancr-card-url y=
iv5344446057link-enhancr-element" style=3D"color: black; text-decoration: n=
one; cursor: pointer;" href=3D"https://en.bitcoin.it/wiki/Satoshi_Client_No=
de_Discovery" target=3D"_blank" rel=3D"nofollow"><span class=3D"yiv53444460=
57link-enhancr-element yiv5344446057link-enhancr-view-on" id=3D"yiv53444460=
57yui_3_16_0_1_1424344523419_2563" style=3D"line-height: 11px; overflow: hi=
dden; display: inline-block; max-height: 13px; min-width: 254px; max-width:=
 314px;"><span class=3D"yiv5344446057link-enhancr-element yiv5344446057link=
-enhancr-mobile-no-resize" style=3D"color: rgb(153, 153, 153); line-height:=
 11px; font-size: 9px; vertical-align: middle;">View on <span class=3D"yiv5=
344446057link-enhancr-view-on-domain" style=3D"font-weight: bold;">en.bitco=
in.it</span></span></span></a></div></td><td class=3D"yiv5344446057link-enh=
ancr-element" style=3D'width: 100px; font-family: "Arial", "Helvetica Neue"=
, "Helvetica", "sans-serif"; vertical-align: middle;'><div class=3D"yiv5344=
446057link-enhancr-element yiv5344446057link-enhancr-preview-wrapper" style=
=3D"text-align: right; line-height: 11px; overflow: hidden; font-size: 0pt;=
 max-height: 13px; min-width: 80px; max-width: 100px;"><span class=3D"yiv53=
44446057link-enhancr-element yiv5344446057link-enhancr-preview-by yiv534444=
6057link-enhancr-mobile-no-resize" style=3D"color: rgb(153, 153, 153); line=
-height: 11px; font-size: 9px; vertical-align: middle;">Preview by Yahoo</s=
pan></div></td></tr><tr><td class=3D"yiv5344446057link-enhancr-element" sty=
le=3D"height: 9px; font-size: 0pt; border-collapse: collapse; background-co=
lor: rgb(255, 255, 255);" colspan=3D"2"><div class=3D"yiv5344446057link-enh=
ancr-element" style=3D"height: 9px; font-size: 9pt; background-color: rgb(2=
55, 255, 255);"></div></td></tr><tr class=3D"yiv5344446057link-enhancr-elem=
ent"><td class=3D"yiv5344446057link-enhancr-element" style=3D"height: 1px; =
font-size: 1px; border-collapse: collapse; background-color: rgb(229, 229, =
229);" colspan=3D"7"><div class=3D"yiv5344446057link-enhancr-element" style=
=3D"height: 1px; line-height: 0px; font-size: 1px; background-color: rgb(22=
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