diff --git a/services/blob/Cargo.lock b/services/blob/Cargo.lock
index f6d0c26a3..bdcf23c6d 100644
--- a/services/blob/Cargo.lock
+++ b/services/blob/Cargo.lock
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 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "84c12f65daa39dd2babe6e442988fc329d6243fdce47d7d2d155b8d874862246"
 
 [[package]]
 name = "windows_x86_64_gnu"
 version = "0.36.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "4dcd171b8776c41b97521e5da127a2d86ad280114807d0b2ab1e462bc764d9e1"
 
 [[package]]
 name = "windows_x86_64_gnu"
 version = "0.42.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "bf7b1b21b5362cbc318f686150e5bcea75ecedc74dd157d874d754a2ca44b0ed"
 
 [[package]]
 name = "windows_x86_64_gnullvm"
 version = "0.42.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "09d525d2ba30eeb3297665bd434a54297e4170c7f1a44cad4ef58095b4cd2028"
 
 [[package]]
 name = "windows_x86_64_msvc"
 version = "0.36.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "c811ca4a8c853ef420abd8592ba53ddbbac90410fab6903b3e79972a631f7680"
 
 [[package]]
 name = "windows_x86_64_msvc"
 version = "0.42.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "f40009d85759725a34da6d89a94e63d7bdc50a862acf0dbc7c8e488f1edcb6f5"
 
 [[package]]
 name = "xmlparser"
 version = "0.13.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "4d25c75bf9ea12c4040a97f829154768bbbce366287e2dc044af160cd79a13fd"
 
 [[package]]
 name = "zeroize"
 version = "1.5.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "c394b5bd0c6f669e7275d9c20aa90ae064cb22e75a1cad54e1b34088034b149f"
diff --git a/services/blob/Cargo.toml b/services/blob/Cargo.toml
index d021e625d..d800e6912 100644
--- a/services/blob/Cargo.toml
+++ b/services/blob/Cargo.toml
@@ -1,22 +1,23 @@
 [package]
 name = "blob"
 description = "Blob service"
 homepage = "https://comm.app"
 license = "BSD-3-Clause"
 version = "0.1.0"
 edition = "2021"
 links = "blob"
 
 [dependencies]
 anyhow = "1.0"
 aws-config = "0.51.0"
 aws-sdk-dynamodb = "0.21.0"
 aws-sdk-s3 = "0.21.0"
 aws-types = "0.51.0"
+chrono = "0.4"
 prost = "0.11"
 tokio = { version = "1.21", features = ["rt-multi-thread"]}
 tokio-stream = "0.1"
 tonic = "0.8"
 
 [build-dependencies]
 tonic-build = "0.8"
diff --git a/services/blob/src/database.rs b/services/blob/src/database.rs
index ebe4f0a8f..eb23cae37 100644
--- a/services/blob/src/database.rs
+++ b/services/blob/src/database.rs
@@ -1,74 +1,75 @@
 use anyhow::Result;
+use chrono::{DateTime, Utc};
 use std::sync::Arc;
 
 use crate::s3::S3Path;
 
 #[derive(Clone, Debug)]
 pub struct BlobItem {
   pub blob_hash: String,
   pub s3_path: S3Path,
-  pub created: i64,
+  pub created: DateTime<Utc>,
 }
 
 #[derive(Clone, Debug)]
 pub struct ReverseIndexItem {
   pub holder: String,
   pub blob_hash: String,
 }
 
 #[derive(Clone)]
 pub struct DatabaseClient {
   client: Arc<aws_sdk_dynamodb::Client>,
 }
 
 impl DatabaseClient {
   pub fn new(aws_config: &aws_types::SdkConfig) -> Self {
     DatabaseClient {
       client: Arc::new(aws_sdk_dynamodb::Client::new(aws_config)),
     }
   }
 
   // Blob item
 
   pub async fn put_blob_item(&self, blob_item: BlobItem) -> Result<()> {
     unimplemented!();
   }
 
   pub async fn find_blob_item(
     &self,
     blob_hash: &str,
   ) -> Result<Option<BlobItem>> {
     unimplemented!();
   }
 
   pub async fn remove_blob_item(&self, blob_hash: &str) -> Result<()> {
     unimplemented!();
   }
 
   // Reverse index item
 
   pub async fn put_reverse_index_item(
     &self,
     reverse_index_item: ReverseIndexItem,
   ) -> Result<()> {
     unimplemented!();
   }
 
   pub async fn find_reverse_index_by_holder(
     &self,
     holder: &str,
   ) -> Result<Option<ReverseIndexItem>> {
     unimplemented!();
   }
 
   pub async fn find_reverse_index_by_hash(
     &self,
     blob_hash: &str,
   ) -> Result<Vec<ReverseIndexItem>> {
     unimplemented!();
   }
 
   pub async fn remove_reverse_index_item(&self, holder: &str) -> Result<()> {
     unimplemented!();
   }
 }