Questions tagged [blockchain]

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Best way to implement public blockchain for IoT?

I'm attempting to build a blockchain network of IoT devices that would allow public access such that any person around the world could push data to it and there would be an immutable record of all ...
Samuel stankiewicz's user avatar
1 vote
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How can the validity of signatures in layer-2 transactions be proven in zk-rollup?

I have many questions about the details of using zk-SNARK technology in zk-rollup: How can the validity of signatures in layer-2 transactions be proven in zk-rollup? In zk-rollup, is a single large ...
user109993's user avatar
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342 views

Authenticate the users (in telegram bot) without storing user ids

Might be a bit weird but interesting scenario: I have a telegram bot and I need to authenticate users but I don't want to store any user data(at least openly). So here's a breakdown: I need to prove ...
Jordan Walker's user avatar
4 votes
2 answers
126 views

Can blockchain be considered a cryptographic primitive?

This might be a silly question. But since more and more people simply use public blockchains as a secure ledger to store mutually agreed information to secure their high level applications, could we ...
Chunchi Liu's user avatar
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The specific nature of a 51% attack - in relation to a multiple choice question that I was marked as incorrect on

In a course I'm taking the following question came up: ...
phoenixestant's user avatar
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1 answer
130 views

Verification in Bulletproof commitment scheme

I am reviewing the ZKP course, represented by the university of Berkley (https://zk-learning.org/). In pages 44 of lecture 6 that is attached below (https://zk-learning.org/assets/lecture6.pdf), the ...
tesoke's user avatar
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