# Confirmation Requirements

See the confirmation requirements and estimated deposit times for supported chains.

Polyester waits for the required number of chain confirmations before continuing a deposit or withdrawal.

| Chain                                                                                                                             | Confirmations required | Estimated confirmation time |
| --------------------------------------------------------------------------------------------------------------------------------- | ---------------------: | --------------------------: |
| [Arbitrum Sepolia](https://testnet.polyesterscan.com/supported-chain/arbitrum-sepolia "Arbitrum Sepolia")                         |                1 block |                  \~1 minute |
| [Avalanche C Fuji](https://testnet.polyesterscan.com/supported-chain/avalanche-c-fuji "Avalanche C Fuji")                         |                1 block |                  \~1 minute |
| [Base Sepolia](https://testnet.polyesterscan.com/supported-chain/base-sepolia "Base Sepolia")                                     |                1 block |                  \~1 minute |
| [Bitcoin Cash Testnet](https://testnet.polyesterscan.com/supported-chain/bitcoincash-testnet "Bitcoin Cash Testnet")              |                1 block |                 \~2 minutes |
| [Bitcoin Testnet](https://testnet.polyesterscan.com/supported-chain/bitcoin-testnet3 "Bitcoin Testnet")                           |                1 block |                 \~2 minutes |
| [BNB Smart Chain Testnet](https://testnet.polyesterscan.com/supported-chain/bsc-testnet "BNB Smart Chain Testnet")                |                1 block |                  50 seconds |
| [Dogecoin Testnet](https://testnet.polyesterscan.com/supported-chain/doge-testnet "Dogecoin Testnet")                             |               5 blocks |                  50 seconds |
| [Ethereum Classic Testnet](https://testnet.polyesterscan.com/supported-chain/ethereum-classic-testnet "Ethereum Classic Testnet") |                1 block |                  \~1 minute |
| [Ethereum Sepolia](https://testnet.polyesterscan.com/supported-chain/ethereum-sepolia "Ethereum Sepolia")                         |                1 block |                  \~1 minute |
| [HyperEVM Testnet](https://testnet.polyesterscan.com/supported-chain/hyperevm-testnet "HyperEVM Testnet")                         |                1 block |                  \~1 minute |
| [Litecoin Testnet](https://testnet.polyesterscan.com/supported-chain/litecoin-testnet "Litecoin Testnet")                         |                1 block |                  50 seconds |
| [Polygon Amoy](https://testnet.polyesterscan.com/supported-chain/polygon-amoy "Polygon Amoy")                                     |                1 block |                  \~1 minute |
| [Ripple Testnet](https://testnet.polyesterscan.com/supported-chain/ripple-testnet "Ripple Testnet")                               |                1 block |                  30 seconds |
| [Robinhood Testnet](https://testnet.polyesterscan.com/supported-chain/robinhood-testnet "Robinhood Testnet")                      |                1 block |                  \~1 minute |
| [Solana Devnet](https://testnet.polyesterscan.com/supported-chain/solana-devnet "Solana Devnet")                                  |                1 block |                  \~1 minute |
| [Tron Nile](https://testnet.polyesterscan.com/supported-chain/tron-nile "Tron Nile")                                              |                1 block |                  \~1 minute |

Times are estimates and can change with chain conditions.