Runitup test chain Explorer →

starting

Chain

Copy of
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Chain id
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Forked at block
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Head
Last sync
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RPC
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The chain keeps the id of the network it copies, so every deployed contract and the site's config work unchanged. In your wallet it is a second RPC for that network: switch back to the real RPC when you are done. Everything here is play money.

Faucet

Sync to a mainnet

Throws the test chain away and copies the chosen network at its latest block. Everything done on the test chain since the last sync is lost, faucet balances included.