Tag
#base-sepolia
19 repositories
Repos
SecureDID v4 — decentralized student identity & verifiable credential platform built on Base Sepolia using Next.js, Solidity, RainbowKit, and IPFS.
✨ Complete smart contract solutions for all 13 Base Learn exercises - Earn NFTs and unlock Guild.xyz roles!
A fully decentralized NFT platform using Arweave (ArDrive/AR.IO) for permanent storage and Crossmint for authentication and payments. Built with React, Vite, and TailwindCSS, it demonstrates true Web3 principles with an accessible user experience.
Portfolio-safe demo/testnet airdrop claim dApp (Next.js + wagmi/viem + Foundry) with Merkle allowlist, Sepolia & Base Sepolia support.
A decentralized URL shortener powered by x402 micropayments and blockchain storage on Base Sepolia
The ZK Geo Location Prover protocol can prove/generate a ZK Proof (Zero-Knowledge Proof) of location of DePIN device + Verify whether or not a DePIN device is working in legal region without revealing their exact locations (GPS coordinates) - thanks to Boundless powered by RISC Zero's zkVM.
An on-chain NGO donations tracker powered by Base, designed to make donations transparent, community-verified, and fully traceable from fundraising to spending.
Embryonic Nostr social client with on-chain Ethereum identity. Browse Nostr feeds, see ETH-verified badges on linked profiles, and link your Ethereum address to your Nostr key — verified on-chain via BIP-340 Schnorr signatures.
A secure university election platform on Ethereum that uses homomorphic encryption for private vote tallying and zero-knowledge proofs for anonymous voter authentication, ensuring verifiable results while maintaining complete voter privacy.
Decentralized neurodata sovereignty platform: encrypt, store, license, and revoke access to brain data on-chain
Solidity smart contracts for data provenance on blockchain — hash anchoring, lineage tracking, merge transformations
Privacy-first payment middleware for AI agents — Unlink ZK privacy pools + x402 micropayments + Ledger hardware approval
Dart library for Coinbase Smart Wallet (ERC-1271) message signing — EIP-191, EIP-712, compatible with viem verification.
Hardware-backed Android wallet for x402 payments. Generates secp256k1 seeds on-device, wraps them with a StrongBox-resident AES key, signs transferWithAuthorization per biometric tap, settles USDC on Base Sepolia. Four-step build from Node hello-world to a Pixel app, with companion notes on passkey + smart-wallet evolution.
🚀 Claim airdrops securely with AirdropKit, a demo platform for Sepolia and Base Sepolia. Testnet only—no real tokens involved.
Quality-gated escrow for agent work, using World ID for verified-human arbitration, x402 for micropayments, and XMTP for chat-native coordination.
Public proof artifacts for a real self-hosted x402 operator lane