Autonomous Machine Payments on RISC-V: VisionFive 2 Pays for Blockchain Attestation with BoAT

VisionFive 2 (EN)
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Check out this YouTube video from TLAY：https://youtu.be/4zx_a_V7TPM?si=RiLyI02FT7YTavGe

The machine economy isn’t coming—it’s already running on open hardware.

In this demo, we watch a VisionFive 2—a quad-core RISC-V single-board computer—perform economically meaningful work entirely on its own. Using a native C program built on the BoAT4 SDK, the board collects system metrics, signs them, and autonomously pays for a blockchain-anchored attestation service using the x402 protocol. No cloud, no human in the loop.

This isn’t just a proof of concept. It’s a blueprint for how industrial controllers, autonomous vehicles, and AI agents will transact in the future.

How it works:

  • Collect: The device gathers system metrics (memory usage, CPU load, timestamp)
  • Sign: It hashes the data with SHA-256 and signs it using an Ed25519 identity key
  • Submit: It sends the attestation to HashAnchor for verification
  • Pay: It autonomously pays for the service via x402 using a native Secp256k1 wallet key

Why it matters:

  • Open Silicon (RISC-V): The VisionFive2 runs on a royalty-free, vendor-neutral ISA—eliminating proprietary lock-in from silicon to software.
  • Native C: The program is compiled natively, minimizing resource usage and proving that constrained devices can be self-sufficient.
  • BoAT (Blockchain of AI Things): The SDK provides embedded, native wallet capabilities directly on the device, enabling autonomous microtransactions without cloud dependency.
  • Trigger with AI: In this setup, we installed PicoClaw (an ultra-lightweight AI assistant from Sipeed) on the VisionFive2, allowing a simple Telegram message to trigger the entire attestation cycle.

The Stack:

  • Hardware: StarFive VisionFive2 (RISC-V JH7110 SoC)
  • Software: Debian Linux, boat-attest-c (C program), BoAT4 SDK, libcurl, OpenSSL
  • Blockchain: HashAnchor (for data anchoring), x402 protocol (EIP-3009 for USDC payments)

Try it yourself:
All code is open source. You can build, run, and modify this demo on your own VisionFive 2 board.

Dive in:
https://medium.com/@tlay_io/boat-meets-vis…

:link: GitHub: GitHub - boat-x/boatattestor-c-vf2-demo: An attestation demo running on the VisionFive2 development board. It attests the memory/CPU usage information on Hash Anchor platform and calls BoAT4 to pay via x402 · GitHub

About BoAT:
BoAT (Blockchain of AI Things) is an SDK that embeds blockchain wallet capabilities directly into firmware and applications. It’s designed to give machines—and the AI agents that run them—the ability to transact, prove, and pay autonomously.

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