diff --git a/projects/DAPIO/chain-integration/chain-integration/integration.rs b/projects/DAPIO/chain-integration/chain-integration/integration.rs
deleted file mode 100644
index f209980f7..000000000
--- a/projects/DAPIO/chain-integration/chain-integration/integration.rs
+++ /dev/null
@@ -1,104 +0,0 @@
-// Chain integration implementation
-
-use tokio::prelude::*;
-use serde::{Serialize, Deserialize};
-
-// Chain integration configuration
-#[derive(Debug, Serialize, Deserialize)]
-struct ChainIntegrationConfig {
-    pi_network_config: PiNetworkConfig,
-    ethereum_config: EthereumConfig,
-    binance_smart_chain_config: BinanceSmartChainConfig,
-    polkadot_config: PolkadotConfig,
-}
-
-// Chain integration implementation
-struct ChainIntegration {
-    pi_network: PiNetwork,
-    ethereum: Ethereum,
-    binance_smart_chain: BinanceSmartChain,
-    polkadot: Polkadot,
-}
-
-impl ChainIntegration {
-    async fn new(config: ChainIntegrationConfig) -> Result<Self, String> {
-        let pi_network = PiNetwork::new(config.pi_network_config).await?;
-        let ethereum = Ethereum::new(config.ethereum_config).await?;
-        let binance_smart_chain = BinanceSmartChain::new(config.binance_smart_chain_config).await?;
-        let polkadot = Polkadot::new(config.polkadot_config).await?;
-        Ok(Self {
-            pi_network,
-            ethereum,
-            binance_smart_chain,
-            polkadot,
-        })
-    }
-
-    async fn get_block_numbers(&self) -> Result<Vec<u64>, String> {
-        let mut block_numbers = Vec::new();
-        block_numbers.push(self.pi_network.get_block_number().await?);
-        block_numbers.push(self.ethereum.get_block_number().await?);
-        block_numbers.push(self.binance_smart_chain.get_block_number().await?);
-        block_numbers.push(self.polkadot.get_block_number().await?);
-        Ok(block_numbers)
-    }
-
-    async fn send_transactions(&self, txs: Vec<Transaction>) -> Result<Vec<String>, String> {
-        let mut tx_hashes = Vec::new();
-        for tx in txs {
-            tx_hashes.push(self.pi_network.send_transaction(&tx).await?);
-            tx_hashes.push(self.ethereum.send_transaction(&tx).await?);
-            tx_hashes.push(self.binance_smart_chain.send_transaction(&tx).await?);
-            tx_hashes.push(self.polkadot.send_transaction(&tx).await?);
-        }
-        Ok(tx_hashes)
-    }
-}
-
-// Example usage
-#[tokio::main]
-async fn main() {
-    let config = ChainIntegrationConfig {
-        pi_network_config: PiNetworkConfig {
-            node_url: "https://pi-network-node.com".to_string(),
-            api_key: "YOUR_API_KEY".to_string(),
-            api_secret: "YOUR_API_SECRET".to_string(),
-        },
-        ethereum_config: EthereumConfig {
-            node_url: "https://ethereum-node.com".to_string(),
-            api_key: "YOUR_API_KEY".to_string(),
-            api_secret: "YOUR_API_SECRET".to_string(),
-        },
-        binance_smart_chain_config: BinanceSmartChainConfig {
-            node_url: "https://binance-smart-chain-node.com".to_string(),
-            api_key: "YOUR_API_KEY".to_string(),
-            api_secret: "YOUR_API_SECRET".to_string(),
-        },
-        polkadot_config: PolkadotConfig {
-            node_url: "https://polkadot-node.com".to_string(),
-            api_key: "YOUR_API_KEY".to_string(),
-            api_secret: "YOUR_API_SECRET".to_string(),
-        },
-    };
-    let chain_integration = ChainIntegration::new(config).await.unwrap();
-    let block_numbers = chain_integration.get_block_numbers().await.unwrap();
-    println!("Block numbers: {:?}", block_numbers);
-    let txs = vec![
-        Transaction {
-            from: "0x1234567890abcdef".to_string(),
-            to: "0xfedcba9876543210".to_string(),
-            value: 100,
-            gas: 20000,
-            gas_price: 20,
-        },
-        Transaction {
-            from: "0xfedcba9876543210".to_string(),
-            to: "0x1234567890abcdef".to_string(),
-            value: 50,
-            gas: 15000,
-            gas_price: 15,
-        },
-    ];
-    let tx_hashes = chain_integration.send_transactions(txs).await.unwrap();
-    println!("Transaction hashes: {:?}", tx_hashes);
-}