diff --git a/front/js/svelte/records/Edit.svelte b/front/js/svelte/records/Edit.svelte
index 17e9978..ff0377e 100644
--- a/front/js/svelte/records/Edit.svelte
+++ b/front/js/svelte/records/Edit.svelte
@@ -52,9 +52,8 @@
                             window.location = channel.lucentUrl;
                             return;
                         }
+                        graph = [...response.data.graph];
                         form.setOriginalData();
-                        graph = response.data.graph;
-
                     }
 
                     resolve(null);
@@ -87,7 +86,7 @@
                     bind:this={form}
                     data={record.data}
                     status={record.status}
-                    {graph}
+                    bind:graph
                     {schema}
                     {record}
                     {isCreateMode}
diff --git a/front/js/svelte/records/form/Form.svelte b/front/js/svelte/records/form/Form.svelte
index f6e77ca..f3e1159 100644
--- a/front/js/svelte/records/form/Form.svelte
+++ b/front/js/svelte/records/form/Form.svelte
@@ -22,7 +22,7 @@
     export let record;
     export let data;
     export let status = null;
-    export let graph = [];
+    export let graph;
     export let isCreateMode;
     let originalContent;
     let activeContentTab = "";
diff --git a/src/Http/Controller/RecordController.php b/src/Http/Controller/RecordController.php
index 6258ab7..526a3ad 100644
--- a/src/Http/Controller/RecordController.php
+++ b/src/Http/Controller/RecordController.php
@@ -20,7 +20,6 @@ use Lucent\Record\Status;
 use Lucent\Schema\Schema\System;
 use Lucent\Schema\Validator\ValidatorException;
 use Lucent\Support\Collection;
-use Lucent\Support\Result\Result;
 use Lucent\Support\Result\Success;
 use Lucent\Svelte\Svelte;
 use PhpOption\Option;
@@ -315,7 +314,6 @@ class RecordController extends Controller
     {
         $recordId = $request->input("id");
 
-
         $recordEdgeData = (new Collection($request->input("edges")))->map(fn($item) => new RecordEdgeData(
             target: $item["target"],
             targetSchema:$item["targetSchema"],
@@ -323,7 +321,6 @@ class RecordController extends Controller
             data: Option::fromValue(data_get($item,"data")),
         ));
 
-
         $res = match ($request->input("isCreateMode")) {
             true => $this->recordService->createDocument(new NewDocumentData(
                     schemaName: $request->input("schemaName"),
@@ -368,7 +365,6 @@ class RecordController extends Controller
     public function clone(Request $request)
     {
         try {
-
             $newRecordId = $this->recordService->clone(
                 recordId: $request->route("rid"),
             );
diff --git a/src/Lexorank/Lexorank.php b/src/Lexorank/Lexorank.php
new file mode 100644
index 0000000..b81ad29
--- /dev/null
+++ b/src/Lexorank/Lexorank.php
@@ -0,0 +1,135 @@
+<?php
+
+namespace Lucent\Lexorank;
+
+use Lucent\Support\Result\Error;
+use Lucent\Support\Result\Result;
+use function chr;
+use function in_array;
+use function ord;
+use function strcmp;
+use function substr;
+
+/** @psalm-immutable */
+final class Lexorank
+{
+
+    /**
+     * @return  Result<Rank|string>
+     */
+    public function after(string $prevRank): Result
+    {
+
+        if (empty($prevRank)) {
+            return $this->forEmptySequence();
+        }
+
+        $res = Rank::fromString($prevRank);
+        if($res->error()->isDefined()){
+            return $res;
+        }
+        $prevRank = $res->success()->get();
+        $char = substr($prevRank->get(), -1);
+
+        if (ord($char) + 1 >= ord(Rank::MAX_CHAR)) {
+            return Rank::fromString(
+                $prevRank->get() . chr(ord(Rank::MIN_CHAR) + 1)
+            );
+        }
+
+        $return = substr($prevRank->get(), 0, -1) . chr(ord($char) + 1);
+
+        if(empty($return)){
+            return Error::create("Lexorank empty string error");
+        }
+
+        return Rank::fromString($return);
+    }
+
+    /**
+     * @return  Result<Rank|string>
+     */
+    public function before(string $nextRank): Result
+    {
+        if (empty($nextRank)) {
+            return $this->forEmptySequence();
+        }
+
+        $res = Rank::fromString($nextRank);
+        if($res->error()->isDefined()){
+            return $res;
+        }
+
+        $nextRank = $res->success()->get();
+        $char = substr($nextRank->get(), -1);
+
+        if (ord($char) - 1 <= ord(Rank::MIN_CHAR)) {
+            $return = substr($nextRank->get(), 0, -1) . chr(ord($char) - 1) . chr(ord(Rank::MAX_CHAR) - 1);
+            return Rank::fromString($return);
+        }
+
+        $return = substr($nextRank->get(), 0, -1) . chr(ord($char) - 1);
+        return Rank::fromString($return);
+    }
+
+    /**
+     * @return  Result<Rank|string>
+     */
+    public function betweenRanks(string $prevRank, string $nextRank): Result
+    {
+        $resNext = Rank::fromString($nextRank);
+        $resPrev = Rank::fromString($prevRank);
+        if($resNext->error()->isDefined()){
+            return $resNext;
+        }
+        if($resPrev->error()->isDefined()){
+            return $resPrev;
+        }
+        $nextRank = $resNext->success()->get();
+        $prevRank = $resPrev->success()->get();
+
+        if (strcmp($prevRank->get(), $nextRank->get()) >= 0) {
+            return Error::create('Previous Rank (' . $prevRank->get() . ') is greater than or equals to Next (' . $nextRank->get() . ')');
+        }
+
+        $rank = '';
+        $i = 0;
+        while ($i <= Rank::MAX_RANK_LEN) {
+            $prevChar = $prevRank->getChar($i, Rank::MIN_CHAR);
+            $nextChar = $nextRank->getChar($i, Rank::MAX_CHAR);
+            $i++;
+
+            $midChar = $this->mid($prevChar, $nextChar);
+            if (in_array($midChar, [$prevChar, $nextChar])) {
+                $rank .= $prevChar;
+                continue;
+            }
+
+            $rank .= $midChar;
+            break;
+        }
+
+        return Rank::fromString($rank);
+    }
+
+
+    /**
+     * @return Result<Rank|string>
+     */
+    public function forEmptySequence(): Result
+    {
+        return Rank::fromString($this->mid(Rank::MIN_CHAR, Rank::MAX_CHAR));
+    }
+
+
+    private function mid(string $prev, string $next): string
+    {
+        if (ord($prev) >= ord($next)) {
+            return $prev;
+        }
+
+        return chr((int)((ord($prev) + ord($next)) / 2));
+    }
+
+
+}
diff --git a/src/Lexorank/Rank.php b/src/Lexorank/Rank.php
new file mode 100644
index 0000000..9ef248a
--- /dev/null
+++ b/src/Lexorank/Rank.php
@@ -0,0 +1,93 @@
+<?php
+
+namespace Lucent\Lexorank;
+
+use Lucent\Support\Result\Error;
+use Lucent\Support\Result\Result;
+use Lucent\Support\Result\Success;
+use function array_filter;
+use function array_values;
+use function ord;
+use function str_split;
+use function strlen;
+use function substr;
+
+/** @psalm-immutable */
+final class Rank
+{
+    public const MIN_CHAR = '0';
+
+    public const MAX_CHAR = 'z';
+
+    /** Usually, database like MySQL order using only the first 1024 chars */
+    public const MAX_RANK_LEN = 1024;
+
+    /**
+     * @var non-empty-string
+     * @psalm-readonly
+     */
+    private string $rank;
+
+    /**
+     * @param non-empty-string $rank
+     */
+    public function __construct(string $rank)
+    {
+
+
+        $this->rank = $rank;
+    }
+
+    /**
+     * @param non-empty-string $rank
+     *
+     * @return Result<Rank|string>
+     */
+    private static function rankValidator(string $rank): Result
+    {
+        if (strlen($rank) > self::MAX_RANK_LEN) {
+            return Error::create('The length of Rank provided is too long. Rank Provided: ' . $rank . ' - Rank Length: ' . strlen($rank) . ' - Max length: ' . self::MAX_RANK_LEN);
+        }
+
+        $invalidChars = array_filter(
+            str_split($rank),
+            static function ($char) {
+                return ord($char) < ord(self::MIN_CHAR) || ord($char) > ord(self::MAX_CHAR);
+            }
+        );
+
+        if ($invalidChars !== []) {
+            return Error::create('Rank provided contains an invalid Char. Rank Provided: ' . $rank . ' - Invalid char: ' . implode(', ', array_values($invalidChars)));
+        }
+
+        $lastChar = substr($rank, -1);
+        if ($lastChar === self::MIN_CHAR) {
+            return Error::create('The last char of the rank (' . $rank . ') can\'t be equal to the min char (' . self::MIN_CHAR . ').');
+        }
+
+        return Success::create(new self($rank));
+    }
+
+    public function get(): string
+    {
+        return $this->rank;
+    }
+
+    /**
+     * @param non-empty-string $rank
+     *
+     * @return Result<Rank|string>
+     */
+    public static function fromString(string $rank): Result
+    {
+        return self::rankValidator($rank);
+    }
+
+    public function getChar(int $i, string $defaultChar): string
+    {
+        return $this->rank[$i] ?? $defaultChar;
+    }
+
+
+
+}