diff --git a/Cargo.toml b/Cargo.toml
index 01c862f..2e67df4 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "script-sign"
-version = "0.1.0"
+version = "0.1.1"
 edition = "2021"
 authors = ["Hatter Jiang <jht5945@gmail.com>"]
 description = "Script Sign"
diff --git a/src/keymap.rs b/src/keymap.rs
index f5a3139..5571bed 100644
--- a/src/keymap.rs
+++ b/src/keymap.rs
@@ -1,25 +1,35 @@
-use rust_util::XResult;
 use serde::{Deserialize, Serialize};
 use std::collections::HashMap;
 
+#[derive(Debug, Serialize, Deserialize)]
+pub struct KeyMeta {
+    pub public_key_point_hex: String,
+}
+
 #[derive(Debug, Serialize, Deserialize)]
 pub struct KeyMap {
-    key_map: HashMap<String, String>,
+    pub key_map: HashMap<String, KeyMeta>,
 }
 
 impl KeyMap {
-    pub fn system() -> XResult<Self> {
+    pub fn system() -> Self {
         let signing_keys = r##"
 {
-  "yk-r1": "04dd3eebd906c9cf00b08ec29f7ed61804d1cc1d1352d9257b628191e08fc3717c4fae3298cd5c4829cec8bf3a946e7db60b7857e1287f6a0bae6b3f2342f007d0"
+  "yk-r1": {
+    "public_key_point_hex": "04dd3eebd906c9cf00b08ec29f7ed61804d1cc1d1352d9257b628191e08fc3717c4fae3298cd5c4829cec8bf3a946e7db60b7857e1287f6a0bae6b3f2342f007d0"
+  }
 }
 "##;
         // unwrap should not happen
-        let key_map: HashMap<String, String> = serde_json::from_str(signing_keys).unwrap();
-        Ok(KeyMap { key_map })
+        let key_map: HashMap<String, KeyMeta> = serde_json::from_str(signing_keys).unwrap();
+        KeyMap { key_map }
     }
 
-    pub fn find(&self, key_id: &str) -> Option<&String> {
+    pub fn from(key_map: HashMap<String, KeyMeta>) -> Self {
+        Self { key_map }
+    }
+
+    pub fn find(&self, key_id: &str) -> Option<&KeyMeta> {
         self.key_map.get(key_id)
     }
 }
diff --git a/src/lib.rs b/src/lib.rs
index 1ea323d..2004d84 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -22,7 +22,7 @@ pub struct Script {
 
 impl Script {
     pub fn verify_script_file_with_system_key_map(script_file: &str) -> XResult<bool> {
-        Self::verify_script_file(script_file, &KeyMap::system()?)
+        Self::verify_script_file(script_file, &KeyMap::system())
     }
 
     pub fn verify_script_file(script_file: &str, key_map: &KeyMap) -> XResult<bool> {
@@ -42,28 +42,59 @@ impl Script {
 
     pub fn parse(script: &str) -> XResult<Script> {
         let lines = script.lines().collect::<Vec<_>>();
-        let last_non_empty_line = lines.iter().rev().find(|ln| !ln.is_empty());
-        match last_non_empty_line {
-            Some(last_non_empty_line) if last_non_empty_line.starts_with(SIGNATURE_PREFIX) => {
-                let script_signature = ScriptSignature::parse(last_non_empty_line)?;
-                let final_lines = lines
-                    .iter()
-                    .rev()
-                    .skip_while(|ln| ln.is_empty())
-                    .skip(1)
-                    .collect::<Vec<_>>()
-                    .into_iter()
-                    .rev()
-                    .collect::<Vec<_>>();
-                Ok(Script {
-                    content_lines: final_lines.iter().map(ToString::to_string).collect(),
-                    signature: Some(script_signature),
-                })
+
+        let mut in_signature_section = false;
+        let mut signature_lines = vec![];
+        let mut content_lines = vec![];
+        let mut signature_line = String::new();
+
+        let mut push_signature_line = |signature_line: &mut String| {
+            if !signature_line.is_empty() {
+                signature_lines.push(signature_line.clone());
+                signature_line.clear();
             }
-            _ => Ok(Script {
-                content_lines: lines.iter().map(ToString::to_string).collect(),
+        };
+
+        for line in &lines {
+            if in_signature_section {
+                if line.starts_with(SIGNATURE_PREFIX) {
+                    push_signature_line(&mut signature_line);
+                    signature_line.push_str(line);
+                } else if line.starts_with("//") {
+                    signature_line.push_str(line.chars().skip(2).collect::<String>().trim());
+                } else if !line.trim().is_empty() {
+                    return simple_error!("Bad signature section line, find: '{line}'");
+                }
+            } else {
+                if line.starts_with(SIGNATURE_PREFIX) {
+                    in_signature_section = true;
+                    push_signature_line(&mut signature_line);
+                    signature_line.push_str(line);
+                } else {
+                    content_lines.push(line.to_string());
+                }
+            }
+        }
+        push_signature_line(&mut signature_line);
+
+        if signature_lines.len() > 1 {
+            return simple_error!(
+                "Found {} signatures, only supports one signature.",
+                signature_lines.len()
+            );
+        }
+
+        if signature_lines.is_empty() {
+            Ok(Script {
+                content_lines,
                 signature: None,
-            }),
+            })
+        } else {
+            let script_signature = ScriptSignature::parse(&signature_lines[0])?;
+            Ok(Script {
+                content_lines,
+                signature: Some(script_signature),
+            })
         }
     }
 
@@ -79,8 +110,13 @@ impl Script {
                 } else {
                     joined_content_liens.push_str("\n\n");
                 }
-                joined_content_liens.push_str(&signature.as_string());
-                joined_content_liens.push('\n');
+                let signature_lines = signature.as_string_lines_default_width();
+                for signature_line in &signature_lines {
+                    joined_content_liens.push_str(&signature_line);
+                    joined_content_liens.push('\n');
+                }
+                // joined_content_liens.push_str(&signature.as_string());
+                // joined_content_liens.push('\n');
                 joined_content_liens
             }
         }
@@ -99,7 +135,7 @@ impl Script {
             None => return simple_error!("Sign key id: {} not found", &signature.key_id),
             Some(key) => key,
         };
-        let key_bytes = hex::decode(key)?;
+        let key_bytes = hex::decode(&key.public_key_point_hex)?;
         let digest_sha256 = self.normalize_content_lines_and_sha256(&signature.time);
         match signature.algorithm {
             ScriptSignatureAlgorithm::ES256 => {
@@ -203,3 +239,48 @@ fn test_script_parse_02() {
     assert_eq!("2025-01-05T20:57:14+08:00", s.time);
     assert_eq!(b"helloworld".to_vec(), s.signature);
 }
+
+#[test]
+fn test_script_parse_03() {
+    let script =
+        Script::parse(r##"#!/usr/bin/env -S deno run --allow-env
+
+console.log("Hello world.");
+
+// @SCRIPT-SIGNATURE-V1: yk-r1.ES256.20250122T233410+08:00.MEQCIGogDudoVpCVfGiNPu8Wn6YPDtFX5OXC4bKtsN1nw414AiAq+5EVdvOuKAlXdVeeE1d91mKX9TaSTR25jliUx0km6A=="##)
+            .unwrap();
+    assert!(script.verify(&KeyMap::system()).unwrap());
+}
+
+#[test]
+fn test_script_parse_04() {
+    let script =
+        Script::parse(r##"#!/usr/bin/env -S deno run --allow-env
+
+console.log("Hello world.");
+
+// @SCRIPT-SIGNATURE-V1: yk-r1.ES256.20250122T233410+08:00.MEQCIGogDudoVpCVfGiNPu8Wn6YPDtFX5OXC4bKtsN1nw414AiAq+5EVdvOuKAlXdVeeE1d91mKX9TaSTR25jliUx0km6A=="##)
+            .unwrap();
+    let script_str = script.as_string();
+    assert_eq!(r##"#!/usr/bin/env -S deno run --allow-env
+
+console.log("Hello world.");
+
+// @SCRIPT-SIGNATURE-V1: yk-r1.ES256.20250122T233410+08:00.MEQCIGogDudoVpCVfGiNPu8W
+// n6YPDtFX5OXC4bKtsN1nw414AiAq+5EVdvOuKAlXdVeeE1d91mKX9TaSTR25jliUx0km6A==
+"##, script_str);
+}
+
+#[test]
+fn test_script_parse_05() {
+    let script = Script::parse(
+        r##"#!/usr/bin/env -S deno run --allow-env
+
+console.log("Hello world.");
+
+// @SCRIPT-SIGNATURE-V1: yk-r1.ES256.20250122T233410+08:00.MEQCIGogDudoVpCVfGiNPu
+// 8Wn6YPDtFX5OXC4bKtsN1nw414AiAq+5EVdvOuKAlXdVeeE1d91mKX9TaSTR25jliUx0km6A=="##,
+    )
+    .unwrap();
+    assert!(script.verify(&KeyMap::system()).unwrap());
+}
diff --git a/src/signature.rs b/src/signature.rs
index f20b639..29c1bda 100644
--- a/src/signature.rs
+++ b/src/signature.rs
@@ -79,6 +79,21 @@ impl ScriptSignature {
         })
     }
 
+    pub fn as_string_lines_default_width(&self) -> Vec<String> {
+        self.as_string_lines(80)
+    }
+
+    pub fn as_string_lines(&self, width: usize) -> Vec<String> {
+        let mut lines = vec![];
+        let str = self.as_string();
+        let chars = str.chars().skip(3).collect::<Vec<_>>();
+        let chunks = chars.chunks(width);
+        for chunk in chunks {
+            lines.push(format!("// {}", chunk.iter().collect::<String>()));
+        }
+        lines
+    }
+
     pub fn as_string(&self) -> String {
         let mut s = String::with_capacity(245);
         s.push_str(SIGNATURE_PREFIX);