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Results tagged with transaction-verification
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user 24925
The process in which every Bitcoin node checks every part of every Bitcoin transaction worldwide for conformance to standard rules and uses the complete history of all previous Bitcoin transactions to check that money being spent in a transaction has not previously been spent in any earlier transaction since the beginning of Bitcoin.
4
votes
Can anyone initiate a Blockchain transaction into the mining pool?
Nodes store a mempool of valid transactions. An invalid transaction can never be in a block, so invalid transactions never make sense to store or relay around the network. You can make invalid transac …
- 15.5k
1
vote
Basic question about transaction verification
Simply, the block chain is to prevent double spending. Otherwise Alice could present different transactions to different people, all with valid signatures, that spend the same money in alternate ways. …
- 15.5k
1
vote
Accepted
What is A matching transaction in the pool validation?
In order for a transaction to be valid all of the outputs it spends must also be valid as well. Before accepting a transaction into the memory pool or accepting it into it's local block chain, one of …
- 15.5k
7
votes
Accepted
Does value 'True' at the middle of stack is valid transaction?
Contrary to the book Mastering Bitcoin, there is no boolean value of "True" in Bitcoin Script. An executed transaction script is valid when the top item remaining in the stack at the conclusion of exe …
- 15.5k
6
votes
Accepted
Is the SPV client model scalable?
Generally speaking, BIP37 bloom filtering SPV has atrocious scaling though it is hard to say exactly how poor it is in the real works.
Every peer must sync the entire block chain from the last the …
- 15.5k