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Questions tagged [assume-valid]

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How does a node find the active chain?

Let's say a user joins the Bitcoin network and downloads the latest state of the blockchain (all blocks, which includes the forks/uncles). How does this user find/determine the active blockchain on ...
2
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1answer
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If I set assumevalid=0 after syncing the blockchain will Bitcoin Core go back and validate historical blocks?

I originally synced my node using the Bitcoin Core default assumevalid value. If I set assumevalid=0 in bitcoin.conf and restart my node, will my node go back and validate historical blocks?
6
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What are the trust assumptions in --assumed-valid in bitcoin core 0.14?

Please help me understand and distinguish the trust assumptions in the following three cases shown below. Specifically, please elaborate the attacks possible (even though completely theoretical) and ...