ChainWallet | Devpost

🚀 Inspiration

ChainWallet was inspired by the need for a crypto wallet that’s user-friendly, vendor-aware, and doesn’t require extensions or complex integrations. We wanted to make crypto as easy as scanning a receipt, paying anyone, or tracking UTXOs — all powered by AI and secured by Bitcoin-native protocols like Bitcore and Drivechain Thunder.

💡 What it does

ChainWallet is a full-featured crypto wallet that:

Enables seamless BTC transactions via Bitcore and Driverchain’s Thunder
Supports Proof of Transaction (PoT) for vendors to verify real-time payments
Lets users generate wallets with mnemonic + password (no browser extensions required)
Broadcasts raw Bitcoin transactions via Rebar Shield
Tracks live UTXOs via xSat Wallet Tracker
Displays token + etching metadata from Rune Etchings Explorer
Supports BTC testnet address creation (P2PKH, P2SH, Bech32)
Provides live BTC/ETH prices and data insights using Rebar
Uses AI to guide users through crypto tasks and transaction flows

🏗️ How we built it

We used:

Python & Flask for the backend logic
HTML, Bootstrap for the frontend
Bitcore and Thunder (Driverchain) for Bitcoin-sidechain transactions
TradingView for live price charts
Custom APIs for broadcasting TXs, generating keys, UTXO tracking, and Rebar data
ESAT EVM integration for seamless wallet creation and smart transaction routing
PoT verification system built around transaction metadata for vendor confidence

🧱 Challenges we ran into

Integrating Thunder's experimental sidechain tools with real Bitcoin workflows
Ensuring testnet/mainnet flexibility without breaking wallet features
Creating a "no-extension" experience that still feels secure and trustless
Mapping AI UI flows to crypto transaction logic for beginners
Handling UTXO fragmentation and scriptPubKey parsing from exSat Tracker

🏆 Accomplishments that we're proud of

Fully working wallet with live testnet + mainnet support
Seamless raw TX broadcast system (Rebar Shield)
Successfully integrated Bitcore + Thunder
First wallet with Proof of Transaction (PoT) layer for vendors
No-extension mnemonic-based login experience
Built-in data insights for transparent usage and on-chain monitoring

📚 What we learned

Drivechain and Thunder are powerful, but require deep protocol understanding
Mnemonic + password systems can be user-friendly without compromising security
Simplifying UX for crypto isn't just about UI — it's also about smart backend design
There's huge value in Proof of Transaction receipts for commerce and vendor adoption