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ReceiptAnchor

Robinhood just declared the agentic-finance era — 30M agent transactions a day. Every one of them needs proof. We built it.

Videos

Project image 1

Tech Stack

Solidity
Node
Foundry
x402
TypeScript
MCP
Ethers
Web3

Description

The agentic economy runs on trust — and trust needs proof. ReceiptAnchor is the proof layer for agent payments on Robinhood Chain: every paid receipt becomes a permanent, tamper-evident record the whole world can verify. Once it’s on-chain, it’s history. No backdating, no altering, no disputes.

It powers Agent Embassy’s pay-per-call network (aemb.pro), where agents buy verified services for $0.15 USDC and walk away with signed receipts.

Live on Robinhood Chain testnet: 0x819B51EBa38AcdB6945a01e49D4D165bb897CF1F

Progress During Hackathon

Deployed ReceiptAnchor.sol (43 lines, permissionless, no admin) to Robinhood Chain testnet. Anchored a real $0.15 paid receipt on-chain — tx confirmed, isAnchored() returns true. Built the full verification ladder (VERIFY.md): signature check, settlement envelope, hash recipe, on-chain read. Produced demo video showing the live MCP product.

Fundraising Status

Bootstrapped — not currently fundraising

Team Leader
Nnoot XLM
Project Link
Deploy Ecosystem
Robinhood Chain TestnetRobinhood Chain Testnet
Sector
AIDeFiInfra