Two unique projects for the USDC Hackathon - targeting problems nobody else has solved.
The Problem: When humans die, their agents' USDC gets locked forever.
The Solution: On-chain testaments with heartbeat-based inheritance.
- Beneficiary designation (multiple wallets, custom percentages)
- Heartbeat system (human checks in periodically)
- Grace periods before execution
- Permissionless execution when conditions met
- Final messages stored on-chain
| Item | Value |
|---|---|
| Contract Address | 0x410AF1285a25528a7D7655032c4Cf19f32C3C333 |
| Deploy TX | 0x76cb6e7bdfdc9e859d35e3157877d1f9a377d2d11747a9048af836f5aba2263a |
| Demo TX (Testament Created) | 0x7dfcfbae42318f20c53bab06711fac4d5a0f58f43fc440cd03a395e4956bb248 |
| USDC Token | 0x036CbD53842c5426634e7929541eC2318f3dCF7e |
| Chain | Base Sepolia (Chain ID: 84532) |
File: smart-contract/AgentWill.sol
The Problem: Payment links are ugly, get blocked, and expose transactions.
The Solution: Steganographic payments hidden in images using LSB encoding.
- Embed USDC payment requests into PNG/BMP images
- Other agents extract and execute invisibly
- Optional AES-256 encryption
- Signed payment requests with expiry
- Anti-censorship, creative monetization, covert coordination
Payment Data → Compress → Encrypt → Embed in LSB of pixels
Each pixel's least significant bits store payment data invisibly. A 1000x1000 image can hold ~3MB of hidden data.
Files:
skill/SKILL.md- Skill documentationskill/index.js- Implementation
| Project | What Others Built | What We Built |
|---|---|---|
| AgentWill | Agent mortality | Human mortality |
| USDC-Whisper | Payment APIs | Invisible payments |
- Network: Base Sepolia
- Chain ID: 84532
- RPC: https://sepolia.base.org
- USDC:
0x036CbD53842c5426634e7929541eC2318f3dCF7e
Built by Wizbisy for the USDC Hackathon 2026 🦞