diff --git a/blockchain/cache.php b/blockchain/cache.php
deleted file mode 100644
index 91a3835..0000000
--- a/blockchain/cache.php
+++ /dev/null
@@ -1,46 +0,0 @@
-<?php
-
-// ---
-// --- Listening to blockchain.info to get the last block
-// ---
-
-// ---
-// --- La config globale
-// ---
-require_once '../global/inc/config.php';
-
-// ---
-// --- Internal dependances
-// ---
-require_once 'inc/block.php';
-
-// ---
-// --- Par défaut on cherche le dernier block
-// ---
-$block_hash = 'LAST';
-
-// ---
-// --- On interroge la blockchain
-// ---  => Ce qui a pour effet de placer le block dans le cache
-// ---
-$the_block = blockchain::getSpecialBlock($block_hash);
-if ($the_block === FALSE) die();
-
-// ---
-// --- On en recherche 6 sur approximativement 6 heures (36 blocks)
-// ---
-$max  = 6;
-while($max > 0)
-{
-        $block_hash = $the_block->prev_block;
-
-        if (!file_exists(DATA_PATH.'/json/'.$block_hash.'.zip'))
-                echo 'CACHE '.$block_hash.' '.($the_block->height-1)." ".$the_block->n_tx.PHP_EOL;
-
-        $the_block = blockchain::getBlockWithHash($block_hash);
-        if ($the_block === FALSE) die();
-        
-        $max--;
-}
-
-?>
diff --git a/blockchain/controle_cache.php b/blockchain/controle_cache.php
deleted file mode 100644
index 93cb5c1..0000000
--- a/blockchain/controle_cache.php
+++ /dev/null
@@ -1,46 +0,0 @@
-<?php
-
-// ---
-// --- Listening to blockchain.info to get the last block
-// ---
-
-// ---
-// --- La config globale
-// ---
-require_once '../global/inc/config.php';
-
-// ---
-// --- Internal dependances
-// ---
-require_once 'inc/block.php';
-
-// ---
-// --- On interroge la blockchain
-// ---  => Ce qui a pour effet de placer le block dans le cache
-// ---
-$block_hash = blockchain::getLastBlockHash();
-if ($block_hash === FALSE) die();
-echo 'LAST '.$block_hash.' ZIP OK PNG OK';
-
-for($i=0;$i<36;$i++)
-{
-        $the_block = blockchain::getBlockWithHash($block_hash);
-        if ($the_block === FALSE) die();
-
-        echo ' '.$the_block->height.PHP_EOL;
-        if ($i == 35) break;
-
-        $block_hash = $the_block->prev_block;
-        echo 'PREV '.$block_hash.' ';
-
-        echo 'ZIP ';
-        if (file_exists(DATA_PATH.'/json/'.$the_block->hash.'.zip')) echo 'OK ';
-        else echo 'KO ';
-
-        echo 'PNG ';
-        if (file_exists(DATA_PATH.'/hasard/'.$the_block->hash.'.png')) echo 'OK';
-        else echo 'KO';
-}
-
-?>
-~                        
\ No newline at end of file
diff --git a/blockchain/include.php b/blockchain/include.php
deleted file mode 100644
index aa4e5a4..0000000
--- a/blockchain/include.php
+++ /dev/null
@@ -1,5 +0,0 @@
-<?php
-
-foreach (glob("/opt/Twitterbot/inc/*.php") as $filename) require_once($filename);
-
-?>
diff --git a/blockchain/last.php b/blockchain/last.php
deleted file mode 100644
index 135df5b..0000000
--- a/blockchain/last.php
+++ /dev/null
@@ -1,47 +0,0 @@
-<?php
-
-// ---
-// --- Listening to blockchain.info to get the last block
-// ---
-
-// ---
-// --- La config globale
-// ---
-require_once '../global/inc/config.php';
-
-// ---
-// --- Internal dependances
-// ---
-require_once 'inc/block.php';
-
-// ---
-// --- On interroge la blockchain
-// ---  => Ce qui a pour effet de placer le block dans le cache
-// ---
-block_hash = blockchain::getLastCacheBlockHash();
-if ($block_hash === FALSE) die();
-$the_block = blockchain::getBlockWithHash($block_hash);
-echo 'LAST '.$block_hash.' '.$the_block->height.PHP_EOL;
-
-$block_hash = blockchain::getLastBlockHash();
-if ($block_hash === FALSE) die();
-$the_block = blockchain::getBlockWithHash($block_hash);
-echo 'LAST '.$block_hash.' '.$the_block->height.PHP_EOL;
-
-$the_block = blockchain::getSpecialBlock('LAST');
-if ($the_block === FALSE) die();
-echo 'LAST '.$the_block->hash." ".$the_block->height.PHP_EOL;
-
-$max = 0;
-// On se met en retard d'au moins un bloc ...
-while(!file_exists(DATA_PATH.'/json/'.$the_block->hash.'.zip'))
-{
-        $block_hash = $the_block->prev_block;
-        $the_block = blockchain::getBlockWithHash($block_hash);
-        if ($the_block === FALSE) die();
-        // Mais pas plus de 5 blocs de retard ...
-        $max += 1;if ($max > 5) break;
-}
-echo 'LAST '.$the_block->hash." ".$the_block->height.PHP_EOL;
-
-?>
diff --git a/blockchain/robot.php b/blockchain/robot.php
index 26fa8b7..d7f59e4 100644
--- a/blockchain/robot.php
+++ b/blockchain/robot.php
@@ -24,29 +24,21 @@ $block_hash = 'LAST';
 // ---
 if (isset($argv[1])) $block_hash = $argv[1];
 
-echo $block_hash.' ';
-
 // ---
 // --- On interroge la blockchain
 // ---  => Ce qui a pour effet de placer le block dans le cache
 // ---
 $the_block = blockchain::getSpecialBlock($block_hash);
 if ($the_block === FALSE) die();
+echo $block_hash.' '.$the_block->hash." ".$the_block->height." ".$the_block->n_tx.PHP_EOL;
 
 if ($block_hash == 'LAST')
-{
-	$max = 0;
-	// On se met en retard d'au moins un bloc ...
-	while(!file_exists(DATA_PATH.'/json/'.$the_block->hash.'.zip'))
+  for($max=0;($max<8)&&(!file_exists(DATA_PATH.'/json/'.$the_block->prev_block.'.zip'));$max++)
 	{
 		$block_hash = $the_block->prev_block;
-		$the_block = blockchain::getSpecialBlock($block_hash);
+		$the_block = blockchain::getBlockWithHash($block_hash);
 		if ($the_block === FALSE) die();
-		// Mais pas plus de 5 blocs de retard ...
-		$max += 1;if ($max > 5) break;
+		echo 'CACHE '.$the_block->hash." ".$the_block->height." ".$the_block->n_tx.PHP_EOL;
 	}
-}
-
-echo $the_block->hash." ".$the_block->height." ".$the_block->n_tx.PHP_EOL;
 
 ?>
diff --git a/blockchain/robot.sh b/blockchain/robot.sh
index e982133..a447267 100755
--- a/blockchain/robot.sh
+++ b/blockchain/robot.sh
@@ -11,19 +11,22 @@ touch $flag
 
 cd $APPS_PATH/blockchain
 
-rm -f $DATA_PATH/block_list.txt
+rm -f $DATA_PATH/block_list.tmp
 
-php cache.php >> $DATA_PATH/block_list.txt
-
-LISTBLOCKS="GENESIS THE_ANSWER LUCIFER LEET     \
-           TOPISTO PIZZA HALVING_1 WHALE201311 HALVING_2    \
-           BIP_91_LOCK BCC SEGWIT_LOCK SEGWIT   \
-           HURRICANE_1 WHALE201810 BLOCK21E800  \
-           LAST"
+LISTBLOCKS="LAST                                  \
+            GENESIS THE_ANSWER LUCIFER LEET       \
+            TOPISTO PIZZA HALVING_1 WHALE201311    \
+            HALVING_2 BIP_91_LOCK BCC SEGWIT_LOCK  \
+            SEGWIT HURRICANE_1 WHALE201810         \
+            BLOCK21E800"
 
 for BLOCK in $LISTBLOCKS
 do
-  php robot.php $BLOCK >> $DATA_PATH/block_list.txt
+  php robot.php $BLOCK >> $DATA_PATH/block_list.tmp
 done
 
+# Sort the block list by Height
+sort -k3 -n $DATA_PATH/block_list.tmp > $DATA_PATH/block_list.txt
+
+rm -f $DATA_PATH/block_list.tmp
 rm -f $flag