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Questions tagged [fraudproofs]

6 questions
9
votes
2 answers

What is a fraud proof?

In Pieter Wuille's presentation on Segregated Witness, he often mentioned "fraud proofs". What exactly are they? Do physical users actually have to go out of their way to manually produce these proofs to alert other nodes of misbehaviour? How do…
rny
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2 answers

Is Merkle tree pruning described in the whitepaper feasible/useful? If not, would there be any alternative?

When I was reading bitcoin-paper-errata-and-details.md written by David A. Harding, I realized that there's probably a common misunderstanding or over-simplification about Merkle tree pruning. What Nick ODell had said might be a live example: A…
Chris Chen
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2
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1 answer

Is the idea of fraud proofs possible in reality?

I once read this on Twitter, which is said by Luke Dashjr, a Core dev: The original design was to have full nodes create proofs of invalid blocks, to alert SPV nodes to them. SPV nodes would then verify these proofs and reject the invalid…
Chris Chen
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1
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Is there a BitcoinAbuse.com archive?

BitcoinAbuse (https://www.bitcoinabuse.com/) was a community-backed project where you could download the entire database in return. Since it got acquired/merged into https://www.chainabuse.com/ that is no longer the case. Does anybody have any…
badluck
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0
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0 answers

Scaling users on base layer

The more people in the world that can use the Bitcoin network as a long term savings technology, the better. This requires that a person be the proud owner of a private key than can (eventually) unlock a UTXO. I know we can't make blocks big enough…
Marco
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1 answer

How does Bitcoin verify that a user owns the bitcoins he/she spent?

I'm making my own blockchain based currency for a school project and kind of hit a roadblock. I have a wallet class which initializes with zero coins. What prevents the user from just sending a transaction, if he doesn't own the spent coins. Bitcoin…
laust0rm
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