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Questions tagged [validation]

The tag has no usage guidance.

0
votes
1answer
87 views

Which feature/s will avoids SPAM or massive invalid transactions in a IOTA network?

Watching IOTA presentation there is a thing that is still unclear for me: Knowing that IOTA involves PoW but a much lighter one (in order to achieve thousands of transactions per second, but also ...
4
votes
1answer
143 views

When is a transaction valid?

Which parts of a transaction need to have what value in order for it to be stored and broadcast by the IRI? I know that there are some bundle level conditions like valid signature sum of all values ...
3
votes
1answer
50 views

How are nodes incentivised to be honest when approving transactions?

I am new to IOTA and would like to understand how nodes are incentivised to be truthful when approving transactions? Bitcoin: Say a miner approves a tx that is invalid (say bc it double spends). It ...
4
votes
1answer
91 views

How to verify a transactions sent by permanodes?

I don't have access to the old transactions anymore, so I have to trust thetangle.org (or permanodes in the future) that data from before the last snapshot is valid. How can I verify old transactions ...
4
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1answer
39 views

What does a node do if the two selected tips it has to validate are inconsistent?

Every article or blog post that I found only goes to the point where a node has selected two tips via the MCMC walk and checked them for consistency (and then states that if they are inconsistent the ...
5
votes
2answers
239 views

Why aren't timestamps validated?

So, I understand transactions are only validated syntactically, but I'm struggling to understand why that is the case? To be more specific, why isn't there an exactly once (and current timestamp > ...
2
votes
1answer
215 views

How to validate bundle hash

I've been working with a C# port of the API and have managed to get messages posted to the tangle. As most of these are zero values I thought I'd try reattach.online to help get them confirmed. When I ...
7
votes
2answers
188 views

How is ensured that a message sent in a transaction is immutable?

Zero value transactions can send a message instead of a signature, using the transactions signatureMessageFragment. However, as far as I understand the mechanism, only value, currentIndex, lastIndex, ...
6
votes
3answers
188 views

How can I verify whether an address I've created offline is valid?

For security reasons I've created an IOTA address offline. Before I transfer into this address, how can I ensure this address is valid?
5
votes
1answer
417 views

How does a full-node validate transactions?

A full-node "validates" the incoming transactions and discards invalid ones. What algorithms, mechanisms are involved in determining a valid transaction. Appending a transaction by doing the POW also ...