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I'm building a setup where the user’s owner private key is generated and stored on the client (Flutter app) and i'm trying to create a session key from the backend signerToEcdsaValidator expect signer ...
Rifat Khan's user avatar
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I am looking for a clear and practical learning roadmap for Hyperledger Fabric. I already understand basic blockchain concepts (blocks, transactions, consensus), but I want to move into Hyperledger ...
Osama Rabea's user avatar
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I simply want to add a peer to my org1. I am able to create certificates for it using both cryptogen and CA, and also spin up the docker container for this new peer. But every time, I try to query ...
Aryan Rajput's user avatar
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I am developing a Chainlink Functions (v0.3.x) request to fetch artist data from the Spotify API. I am simulating the request locally using the Chainlink Functions Toolkit (simulateScript), which runs ...
Johan's user avatar
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i write a code with chatgpt help for swapping tokens in web3.py in eth/usdc pool sepolia testnet. why? I’m testing a Uniswap v3 swap on the Sepolia testnet using Python and web3.py. Although the ...
bahram papaki's user avatar
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I made sure the RPC URL definitely starts with wss, but Web3j still keeps fetching blocks at specific intervals instead of receiving them in real time. Do I need to call a different method? My Web3j ...
강백호's user avatar
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Tooling
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I’m working on a project that needs to display the full history of a specific NFT on the TON blockchain — including mint information, transfer events, and sale prices. I’ve tried several approaches ...
Карим Кабиров's user avatar
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I’m building a simple Voting DApp using Solidity and Hardhat. The contract deploys successfully, and I can start and end voting without issues. However, when I try to call the getWinner() function ...
Pendem Prashanth's user avatar
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I am trying to send message from Etherenium Sepolia Smart Contract to Solana Testnet through Hypelane. Program on Ethereum Sepolia // SPDX-License-Identifier: UNLICENSED pragma solidity ^0.8.13; ...
Piyush Mishra's user avatar
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In Polymarket, I want to know: how is the totalBought variable calculated when we do BUY or SELL? Reference url = https://data-api.polymarket.com/trades
Pintu Kumar's user avatar
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2 answers
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I am trying to create a dazl script that would listen to events on locally run daml sandbox, and upon catching an event, process it (with my bus. logic). AI gives me a bunch of suggestions that fail ...
Buddy Thomas's user avatar
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2 votes
1 answer
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I am trying to swap two tokens A and B for which I have created the pool on the Uniswap testnet Sepolia. But in Remix, when I try to execute the swap, it gives an error. Everything else is working ...
Akshit Sharma's user avatar
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1 answer
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So I am trying to decode Jupiter V6 instruction data just like websites like solscan.io do, to see the input token amount, output token amount, mints and such. I've tried to reverse engineer it, every ...
Sloppy's user avatar
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I want to know if Blockscout can be used without any reverse proxy like Nginx, or if it's possible to change the default proxy port from 80:80 to another one (for example, 8080:80 or 3000:80). I tried ...
PekoyamaPeko's user avatar
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2 votes
0 answers
108 views

Sui Move’s one-time witness (OTW) pattern ensures a module’s init function runs exactly once. From Move documentation The OTW is a special type of Witness that can be used only once. It cannot be ...
Yilmaz's user avatar
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