diff --git a/src/lib.rs b/src/lib.rs
index 1da688d..bc5943c 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -63,7 +63,103 @@ impl From<u128> for Icechip<u128> {
     }
 }
 
-impl<T: Shl + Shr + Clone> Icechip<T> {
+impl Icechip<u64> {
+    pub fn new(version: Version, epoch: Option<u64>) -> Icechip<T> {
+        todo!();
+    }
+
+    // the offset will get subtracted from the unix epoch before being used in the Icechip.
+    pub fn set_epoch(mut self, epoch: u64) {
+        self.epoch = Some(epoch);
+    }
+
+    pub fn tick<T: Shl + Shr + Clone>(&self) -> Icechip<T> {
+        /*
+            - if current timestamp in relation to self does not equal self, return an updated value, else increment the sequence
+            - if sequence is going to overflow, sleep 1 ms
+        */
+        match SystemTime::now().duration_since(UNIX_EPOCH).as_millis() {
+            Ok(o) => {
+                match self.version {
+                    Version::ENHANCED => {
+                        let curr_ts = match self.epoch {
+                            Some(s) => (o - s).checked_shl(23).unwrap().checked_shr(23).unwrap(),
+                            None => o.checked_shl(23).unwrap().checked_shr(23).unwrap(),
+                        }
+                        if self.timestamp == curr_ts {
+                            if (self.sequence_id + 1) > 1023 {
+                                std::thread::sleep(std::time::Duration::from_millis(1));
+                                return self.tick();
+                            } else {
+                                return Icechip {
+                                    version: self.version.clone(),
+                                    timestamp: self.timestamp.clone(),
+                                    machine_id: self.machine_id.clone(),
+                                    sequence_id: self.sequence_id.clone() + 1,
+                                    epoch: self.epoch.clone()
+                                }
+                            }
+                        } else {
+                            return Icechip {
+                                version: self.version.clone(),
+                                timestamp: curr_ts.clone(),
+                                machine_id: self.machine_id.clone(),
+                                sequence_id: 0,
+                                epoch: self.epoch.clone()
+                            }
+                        }
+                    },
+                    Version::EXTENDED => {
+                        let curr_ts = match self.epoch {
+                            Some(s) => (o - s),
+                            None => o,
+                        }
+                        if self.timestamp == curr_ts {
+                            if (self.sequence_id + 1) > u32::MAX {
+                                std::thread::sleep(std::time:Duration::from_millis(1));
+                                return self.tick();
+                            } else {
+                                return Icechip {
+                                    version: self.version.clone(),
+                                    timestamp: self.timestamp.clone(),
+                                    machine_id: self.machine_id.clone(),
+                                    sequence_id: self.sequence_id.clone() + 1,
+                                    epoch: self.epoch.clone()
+                                }
+                            }
+                        } else {
+                            return Icechip {
+                                version: self.version.clone(),
+                                timestamp: o.clone(),
+                                machine_id: self.machine_id.clone(),
+                                sequence_id: 0,
+                                epoch: self.epoch.clone()
+                            }
+                        }
+                    },
+                }
+            },
+            Err(_) => {
+                std::thread::sleep(std::time::Duration::from_millis(1));
+                return self.tick();
+            }
+        }
+    }
+    
+    pub fn with_id(machine_id: u32, version: Version) -> Icechip<T> {
+        todo!();
+        /*match version {
+            Version::ENHANCED => {
+                
+            },
+            Version::EXTENDED => {
+                
+            }
+        }*/
+    }  
+}
+
+impl Icechip<u128> {
     pub fn new(version: Version, epoch: Option<u64>) -> Icechip<T> {
         todo!();
     }