php - update payout explanation

pool/inc.php

@@ -91,6 +91,8 @@ span.login {float:right;margin-left:8px;margin-right:24px;}
 span.hil {color:blue;}
 span.user {color:green;}
 span.addr {color:brown;}
+span.hdr {font-weight:bold;text-decoration:underline;}
+span.nn {font-weight:bold;color:red;}
 span.warn {color:orange;font-weight:bold;}
 span.urg {color:red;font-weight:bold;}
 span.err {color:red;font-weight:bold;font-size:120%;}

pool/page_payout.php

@@ -2,20 +2,55 @@
 #
 function dopayout($data, $user)
 {
- $pg = '<h1>Payouts</h1>';
- $pg .= '<table width=75% cellpadding=0 cellspacing=0 border=0>';
- $pg .= '<tr><td class=dc>';
- $pg .= 'We use PPLNS (pay per last N shares)<br><br>';
- $pg .= 'The N value used for PPLNS is 5 times the network difficulty';
- $pg .= ' when a block is found,<br>';
- $pg .= 'but includes the full shift at the start and end of the range,<br>';
- $pg .= 'so it usually will be a bit more than 5N.<br><br>';
- $pg .= 'Shifts are ~50min long, however, when we find any pool blocks<br>';
- $pg .= 'the current shift ends at the point the block was found.<br>';
- $pg .= 'A ckpool restart will also start a new shift.<br><br>';
- $pg .= 'Transaction fees are included in the miner payout.<br>';
- $pg .= 'Pool fee is 0.9% of the total.<br>';
- $pg .= '</td></tr></table>';
+ $t = '<span class=nn>5</span>';
+ $ot = '<span class=nn>1/5</span>';
+ $n = '<span class=nn>5Nd</span>';
+ $n1 = '<span class=nn>N</span>';
+ $bc = '+101 Confirms';
+ $bm = 'Matured';
+ $nd = 0;
+ if (isset($data['info']['currndiff']))
+  $nd = $data['info']['currndiff'];
+ $nv = number_format($nd, 1);
+ $nv5 = number_format(5.0*$nd, 1);
+ $pg = "<h1>Payouts</h1>
+<table width=75% cellpadding=0 cellspacing=0 border=0><tr><td>
+
+<span class=hdr>What payout method does the pool use?</span><br><br>
+We use <b>PPL${n1}S</b> (<b>P</b>ay <b>P</b>er <b>L</b>ast $n1 <b>S</b>hares)<br><br>
+<b>PPL${n1}S</b> means that when a block is found, the block reward is shared among the last $n1 shares that miners sent to the pool, up to when the block was found.<br>
+The $n1 value the pool uses is $t times the network difficulty when the block is found - '$n'.<br><br>
+
+<span class=hdr>How much of each block does the pool reward?</span><br><br>
+Transaction fees are included in the miner reward.<br>
+Pool fee is 0.9% of the total.<br><br>
+
+<span class=hdr>How do the payments work?</span><br><br>
+The $n means the pool rewards $t times the expected number of shares, each time a block is found.<br>
+So each share will be paid appoximately $ot of it's expected value, in each block it gets a reward,<br>
+but each share is also expected, on average, to be rewarded $t times in blocks found after the share is submitted to the pool.<br>
+i.e. if pool luck was always 100% then each share is expected to be rewarded $t times.<br><br>
+If pool luck is better than 100%, then the average share reward wil be better than $t times.<br>
+If pool luck is lower than 100%, then the average share reward will be less than $t times.<br><br>
+
+<span class=hdr>What's a shift?</span></br><br>
+When your miner sends shares to the pool, the shares are not stored individually, but rather summarised into shifts.<br>
+Shifts are ~50min or less in length, however, when we find any pool blocks the current shift ends early,<br>
+at the point the block was found.<br>
+A ckpool restart will also end the current shift and start a new one.<br><br>
+
+<span class=hdr>So, what's the $n value?</span><br><br>
+The current Bitcoin network value for $n1 is <b>$nv</b> and thus $n is <b>$nv5</b><br>
+Bitcoin adjusts the $n1 value every 2016 blocks, which is about every 2 weeks.<br><br>
+When a block is found, the reward process counts back shifts until the total share difficulty included is $n.<br>
+Since shares are summaried into shifts, it will includes the full shift at the end of the range counting backwards,<br>
+so it usually will be a bit more than $n.<br><br>
+
+<span class=hdr>When are payments sent out?</span><br><br>
+The block 'Status' must first reach '$bc' on the Blocks page, and then is flagged as '$bm', before the reward is distributed.<br>
+The block reward is sent out manually soon after that.<br><br>
+
+</td></tr></table>";
  return $pg;
 }
 #