# Testnet on Bloxberg **TestNet:** As the name suggests, the Testnet is a network intended strictly for testing and development. Developers use it to try out new features, run tests, and fix bugs without the fear of causing disruption, as it is entirely separate from the Mainnet. This environment typically uses tokens with no real value, allowing developers to simulate transactions and interactions with the system freely. Testnets are crucial for preventing untested or unstable updates from reaching the Mainnet, thereby maintaining system stability and user trust. **TESTNET\_CONTRACT\_ADDRESS:** 0x02882F03097fE8cD31afbdFbB5D72a498B41112c **TESTNET\_HEARTBEAT\_CONTRACT\_ADDRESS:** 0x9B105aefF69Cd26050798d575db17ffc2eAC4E4d **TESTNET\_IMAGE\_REGISTRY:** 0x15D73a742529C3fb11f3FA32EF7f0CC3870ACA31 **TESTNET\_RPC\_URL:**