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Limit page width to improve readability
authorSebastian Geisler <sebastian@blockstream.io>
Sun, 26 Apr 2020 14:44:32 +0000 (16:44 +0200)
committerSebastian Geisler <sebastian@blockstream.io>
Sun, 26 Apr 2020 14:44:32 +0000 (16:44 +0200)
index.html patch | blob | history

diff --git a/index.html b/index.html
index 072ddc941ae69b2f22cf17c87389e7ec1a8dd4b9..d2a8df8bba5b174c4bb764500ecfccd931e83304 100644 (file)
--- a/index.html
+++ b/index.html
@@ -2,6 +2,29 @@
 <html lang="en">
        <head>
                <meta charset="utf-8">
 <html lang="en">
        <head>
                <meta charset="utf-8">
+               <style type="text/css">
+                       body {
+                               margin:40px auto;
+                               max-width:660px;
+                               line-height:1.6;
+                               font-size:14pt;
+                               color:#444;
+                               padding:0 10px;
+                       }
+                       h1, h2, h3 {
+                               line-height: 1.2;
+                       }
+                       pre {
+                               overflow-x: scroll;
+                       }
+                       pre, .hex {
+                               font-size: 9pt;
+                       }
+                       .hex {
+                               font-family: monospace;
+                               word-break: break-all;
+                       }
+               </style>
                <title>Bitcoin Headers over DNS</title>
        </head>
        <body>
                <title>Bitcoin Headers over DNS</title>
        </head>
        <body>
@@ -24,21 +47,27 @@
                        All headers and filter headers are encoded with an arbitrary two byte prefix (currently "2001:"), followed by a 0-indexed order nibble (as nameservers often reorder responses). Bitcoin headers are then prefixed by a single 0 byte (two 0 nibbles) and placed into the remaining 80 bytes of six IPv6 addresses. Filter headers are simply placed into three IPv6 addresses with a 17-nibble (8.5 byte) 0 suffix.
                </p>
                <p>
                        All headers and filter headers are encoded with an arbitrary two byte prefix (currently "2001:"), followed by a 0-indexed order nibble (as nameservers often reorder responses). Bitcoin headers are then prefixed by a single 0 byte (two 0 nibbles) and placed into the remaining 80 bytes of six IPv6 addresses. Filter headers are simply placed into three IPv6 addresses with a 17-nibble (8.5 byte) 0 suffix.
                </p>
                <p>
-                       The genesis block header is, thus, encoded as (note that the responses are usually not sorted):<pre>
+                       The genesis block header is, thus, encoded as (note that the responses are usually not sorted):
+               </p>
+               <pre>
 0.0.bitcoinheaders.net.        604800  IN      AAAA    2001:0:1000::
 0.0.bitcoinheaders.net.        604800  IN      AAAA    2001:1000::
 0.0.bitcoinheaders.net.        604800  IN      AAAA    2001:2000::3ba:3edf
 0.0.bitcoinheaders.net.        604800  IN      AAAA    2001:3d7a:7b12:b27a:c72c:3e67:768f:617f
 0.0.bitcoinheaders.net.        604800  IN      AAAA    2001:4c81:bc38:88a5:1323:a9fb:8aa4:b1e5
 0.0.bitcoinheaders.net.        604800  IN      AAAA    2001:0:1000::
 0.0.bitcoinheaders.net.        604800  IN      AAAA    2001:1000::
 0.0.bitcoinheaders.net.        604800  IN      AAAA    2001:2000::3ba:3edf
 0.0.bitcoinheaders.net.        604800  IN      AAAA    2001:3d7a:7b12:b27a:c72c:3e67:768f:617f
 0.0.bitcoinheaders.net.        604800  IN      AAAA    2001:4c81:bc38:88a5:1323:a9fb:8aa4:b1e5
-0.0.bitcoinheaders.net.        604800  IN      AAAA    2001:5e4a:29ab:5f49:ffff:1d:1dac:2b7c
-which decodes to
-0100000000000000000000000000000000000000000000000000000000000000000000003ba3edfd7a7b12b27ac72c3e67768f617fc81bc3888a51323a9fb8aa4b1e5e4a29ab5f49ffff001d1dac2b7c
-                       </pre>and the first filter header encoded as:<pre>
+0.0.bitcoinheaders.net.        604800  IN      AAAA    2001:5e4a:29ab:5f49:ffff:1d:1dac:2b7c</pre>
+               <p>which decodes to</p>
+               <p class="hex">
+                       0100000000000000000000000000000000000000000000000000000000000000000000003ba3edfd7a7b12b27ac72c3e67768f617fc81bc3888a51323a9fb8aa4b1e5e4a29ab5f49ffff001d1dac2b7c
+               </p>
+               <p>and the first filter header encoded as:</p>
+               <pre>
 0.0.basic.filter.bitcoinheaders.net. 604800 IN AAAA 2001:9f3:c30f:c37:fb97:7cf3:e1a3:173c
 0.0.basic.filter.bitcoinheaders.net. 604800 IN AAAA 2001:2802:139c:2020::
 0.0.basic.filter.bitcoinheaders.net. 604800 IN AAAA 2001:9f3:c30f:c37:fb97:7cf3:e1a3:173c
 0.0.basic.filter.bitcoinheaders.net. 604800 IN AAAA 2001:2802:139c:2020::
-0.0.basic.filter.bitcoinheaders.net. 604800 IN AAAA 2001:1631:e8ff:119a:d308:8b6f:5b2b:ced0
-which decodes to 9f3c30f0c37fb977cf3e1a3173c631e8ff119ad3088b6f5b2bced0802139c202
-                       </pre>
+0.0.basic.filter.bitcoinheaders.net. 604800 IN AAAA 2001:1631:e8ff:119a:d308:8b6f:5b2b:ced0</pre>
+               <p>which decodes to</p>
+               <p class="hex">
+                       9f3c30f0c37fb977cf3e1a3173c631e8ff119ad3088b6f5b2bced0802139c202
                </p>
                <p>
                You can find the <a href="https://github.com/TheBlueMatt/headersdns">scripts used to generate the zones as well as this website on GitHub.</a>
                </p>
                <p>
                You can find the <a href="https://github.com/TheBlueMatt/headersdns">scripts used to generate the zones as well as this website on GitHub.</a>
bitcoinheaders.net