Questions tagged [data]

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Wallet mobile app that allows sending transactions with data to smart contracts on BSC?

I have tried about a dozen crypto wallet apps on Android, including Metamask, and I haven't found a single one that: supports BSC (BNB Smart Chain) allows me to manually initiate and send a ...
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how to get NBA data

Hello everyone I need NBA data in my smart contract so I used some chainlink jobs but they don't provide specific data about the teams or players , is there any node that can help ? or is there ...
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What exactly is the data in data availability when discussing roll ups in ethereum?

I believe I have a basic understanding of how blockchain works. You have transactions, that get collected into a block and tagged onto each other to form a blockchain. The blockchain also has a state (...
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How to make Enums scalable? [duplicate]

Let's say that I have a contract Games.sol containing an enum with multiple games. enum { TicTacToe, PacMan, Chess } This enum is currently imported from a library and I think that it's immutable, so ...
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Is there a particular reason as to why evm adresses are only 160 bits and not 256 bits? [duplicate]

Is there a particular reason as to why evm adresses are only 160 bits and not 256 bits? Wouldn't that create a pigeon hole problem eventually? Is this solely to save 96 per addresses so to decrease ...
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Why do I see outgoing ERC20 token transfers from a given address that had no incoming transfers before?

I am trying to compute the balance tokens for some addresses, by taking the sum of tokens in minus the sum of tokens out. This lead me to a weird observation. I'm finding that some addresses have sent ...
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Can I integrate files within a smart contract?

I want to create a smart contract, let you use files like docx, doc, pdf etc. with the reason of keep those files in the smart contract system and use them when the users of the smart contract ...
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Retrieve a non-constant/non-view transaction's return (output) data with hardhat/ethersjs

I'm trying to figure out if it's possible to retrieve the return value of a non-view function. Specifically, I want to see the return value of a newly created contract I have created a simple setup to ...
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