Testnet

In blockchain technology, a testnet is an instance of a blockchain powered by the same or a newer version of the underlying software, to be used for testing and experimentation without risk to real funds or the main chain.[1] Testnet coins are separate and distinct from the official (mainnet) coins, don't have value, and can be obtained freely from faucets.[2]

Testnets allow for the development of blockchain applications without the risk of losing funds.[3]

A bug was discovered in the Bitcoin Core software that gave miners the ability to take down essential parts of the Bitcoin infrastructure (nodes) by sending a 'bad' block to the blockchain.[4]

References
  1. Franco, Pedro (21 October 2014). Understanding Bitcoin: Cryptography, Engineering and Economics. John Wiley & Sons. p. 74. ISBN 978-1-119-01914-5.
  2. Badr, Bellaj; Horrocks, Richard; Wu, Xun (Brian) (30 November 2018). Blockchain By Example: A developer's guide to creating decentralized applications using Bitcoin, Ethereum, and Hyperledger. Packt Publishing Ltd. p. 19. ISBN 978-1-78847-391-0.
  3. Hu, Yao-Chieh; Lee, Ting-Ting; Chatzopoulos, Dimitris; Hui, Pan (15 June 2018). "Hierarchical interactions between Ethereum smart contracts across Testnets". Proceedings of the 1st Workshop on Cryptocurrencies and Blockchains for Distributed Systems. Association for Computing Machinery: 7–13. doi:10.1145/3211933.3211935. ISBN 9781450358385. S2CID 134234291.
  4. Canellis, David (2018-09-27). "Bitcoin hard fork nightmare becomes reality after testnet splits". TNW | Hardfork. Retrieved 2022-10-10.
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