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4"/-W,5314Ha4U"&-:#$%)*<

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+:7H.7P;&:6)0$R#$%!)-(6R
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&#U/-28D)51&-*)+^<#"&:
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+++2A*\:<
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+P+5+D$*d_`\$4He$.&-+F<c*42H,H,"
2bB+*;#$%)*&44H":*<V@
)/"#$%)*X/-C,#$%&F)/)I4a
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fixed_piece_size = size_of_torrent / number_of_pieces
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number_of_blocks = (fixed_piece_size / fixed_block_size)
+ !!(fixed_piece_size % fixed_block_size)
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block_index = block_offset % fixed_block_size
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o ‘md5sum’(!4,%a!Y"42,GT&iOpc`„RJ4H<,%
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o ‘path’(!42+F2,.':)>RJ4H".D
OJ4H<K+F3a,24RJ4H<
‘name’h,%2,"$.R.DB,B,UJ4H<
‘piece length’(!4,%!O23$!H2R.W.:<
‘pieces’(!4,%2,"O2,&#5+RB:,%$6.gkTzf$!H
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• &Je+ 
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.*2I,.<K,&H,4+F,(.,.':RVK|k<z<K,&H,
&'B+;4/-I4)5<
3blm,n]Jo
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ZH[R.H•J4H<•FŽK+:H)U.':ROKK<
=.232+:)57)%,,H\H2
‘info_hash’h,%$$*"4,%$6.gkTzf$!H<,%!)5L
+P+$6.gk,>••‘,.H•J4H<
‘peer_id’(!42,$$*"Oq`)%R+HH,)*Tzf$!H2<
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)0:.*p’"!4:p)-28D<,%!X$$*+:
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+4,2I,.M&$)F82&Z2,H[,&H,<,%!$
$*&$<
‘downloaded’(!4,%!23kz"$-%pB:23$!H2.+HH,)N
I4,2I,.M&82&Z2,H[,&H,<,%!$$*
&$<
‘le’(!4,%!23kz"7)%p23$!H2?4@.+HH,F
I4)-,,H!<,%!X$$*+:&$<
‘ip’(!4,%a!Y"#)5)04,H")%uR+HH,4)%@qn<
‘event’(!4,%a!Y< #&')5&$"!F2b)5)0
&ƒ<K,,>5+54@"+:/.*,$,%2
‘started’•FKKŽK)F^8,&H,+:/,%!,.
23•HH‘<
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,<
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,,H<HH,&'8,%!#$)F,,H)N<
fDm,]S]o
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@cqcŽ<K4!+:OM)-$HH&H!22
•failure reason’(!4,%a!Y< #)5&$"M)-+:&')5
O$B&ƒM&<HH,+::i!(&'-“)5
2I,.<,%!42,/*/-)Y)5>a"O!
(4W<
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$j>+HH,+:>)#&8,H\H2^#+H<,%!$$*
+:&$<
‘complete’(!4,%!7)%232HHH,2<,%!&'$$*<
‘incomplete’(!4,%!7)%23+HH,)I4,,H<,%!

&'$$*<
‘peers’(!42M)-)N$HHO2+HH,2.+:
)54)-:J4H<,%!4$$*<=/B,U2
‘peer id’(!42,$$*"Oq`)%R+HH,)*Tzf$!H2<
‘ip’(!4,%a!Y"#)5)04,H")%uR+HH,4)%@
qn<
‘port’3p.+HH,4H&#3)#M+HH,&<VK|k<z&'
)0:.*p’"!4:p)-28D<,%!X$$*+:
)5&$<
• &Jep
O•dHH,•,H,4e4+O^#+;+HH,2
7/..D)i2A*J4H<•.':$)5@,$Q+HH,
2&)Y.H•J4H4,&H,)-C'^1+HH,&F
)-44@<•44+,aRK=.;$*^#+R28
D^&')$*<
+;M<SEJJm ]Wo
HH,$&.3^#++HH,D$*+:.Q&#3K=p4
Hdp!)53B'\,&H,e@)*$!
d2&e<@)*!+:)5,&$BO;4)5
8,H.H+HH,<K')+$!)5.':)(!<HH,D$*2b
&')5+P+8$BO;4,Q4@+HH,$,&C
)U)5)%@')+$!H)U4C<
K')+$!4W$!H2B,U2
ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff
” .HhH”,4 .H”}H2H,H”q•2”HH,q`”
ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff
Name Length:
,%7)%)*R7(&iORO",VKk<z,%!4
k‚<HH,D$*$#ORi."#,%!&,>)*
OR."&#3+:$%4@$v<

Protocol Name:
•(&iOi7ROQg=qq/a)*)5)0,
,> .HhH<K,VK|k<zO4•VK,,H+,4‘< #!
&OQ+HH,D$*"&#3$%4@$v<
Reserved:
o$!H2^#+H,7(+DD.Q,*,4/-$v\
&)Y<
Info Hash:
Tz$!H2^#+H,7(4,%gkTzf$!H2R•&H!,.HJ4H<
=:+HH,D$*+HH,$)1)YaJ4H<,,H"#,%•2
)5+HH,D$*C@4i72b/-+DD<K,,>5+
54@"&#3+:$%R!<
PeerID:
Tz$!H23aR')+$!4)%ER+HH,<HH,D$*
+:28DW!)-C@&#32)/<K,>5+!,aq`
R+HH,D$*"&#3+:$%4@$v<0,,>5+/1+HH,a/
q`C@"B:&#3)1$%4@$v<
+;M<SJ`Mqm`p`]]]o
KB:,%23!,')+•)1)5.N/@nf$!H
$fH<
K')+•/B,U2
fffffffffffffffffffffffffffffffffffffffffffffffffffffffffff
”cH22HhH”cH22Hq`”!4”
fffffffffffffffffffffffffffffffffffffffffffffffffffffffffff
Message Length:
h23!7)%)*R')+<
Message ID:
(!4,%kf$!H"7)%&-R')+<VK|k<z.':‚&-')+
#<
Payload:

h)*R2,H.L$j$!H2<
T<k<T<&J
• &BJ<
H444.@2AJ4H+(,B,*4")#G|Tzkz)N/23
45>a4,<5+,-$Q–2^~,&H4K.
H++H,* 442l)F6.Tzzz< !kn|G",&)F^)N/-
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aw,-&L5+32A)N/2•8D)F!)R.Y
+FR&#,UVK,,H,!13<=,&Xw,
)p.&'F+:\(.)3R.4.!L)-$3
)%!#$%)*"28D&#3/(!!&'(!)*<
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• `J=B++,44H2)*,•ch"4.F
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$<,4!XB+%D2HH.$4H4H2S;,
&&'/)%uqŸ3)%< ,"+,4XB+%D
\:49*,•chK.D"K3&K.&#.<
• 4J]]`K`c!R2Q;44,;.HR,,HF#
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28D+F=<
• W•`=2HHH,HHR34..D2HHH!F
M.$4H4H2"'\u)%McT,4< ;2HHH,!+:/
&#3.@H,Hw2HH*< ,";2HH!2bu4.
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• "` c!R)/,?42+H,fH"4..DH4@
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• +`W`cT,42H,H,&'OVK,,HF+:/
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• )=#$%)*..@2,5U+R&#,U
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=#$%)*,B15) "@#16478492bF%
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.@42HHH,r!d$&H2HHH,2e"B+C)//+$j