Arc USDC Rebalancer
Three-minute DeFi Track pitch and product walkthrough.
Policy-bound USDC treasury decisions before execution
The demo covers what was built, how the policy workflow works, why it fits the DeFi Track, and how Arc, USDC, Circle developer-controlled Wallets, and Gateway are used.
Three-minute review path
Each segment maps directly to the official final-demo requirements.
The Treasury Brief reads the deployed policy, executor balance, validation signal, and Circle readiness.
Below-minimum and in-band scenarios show how one policy produces reviewable outcomes.
The demo exposes exact USDC units, reason codes, Arc addresses, and a receipt marked not published.
The public UI has no signer, the legacy executor is not wired, and a valid write request fails closed.
The case study covers 1,003 deterministic balance cases, 9/9 safety gates, and zero submitted transactions.
The MVP prepares auditable treasury actions on Arc without claiming custody, settlement, or a completed transfer.
Reviewer checks
The video, deck, repository, and live product use the same evidence boundary.
Full narration transcript
The readable transcript matches the final 180-second narration source.
Read the complete transcript
Arc USDC Rebalancer is our DeFi Track MVP: policy-bound USDC treasury decisions on Arc Testnet, with Circle Wallets Gateway readiness.
On the production dashboard, Treasury Brief reads the deployed Arc policy, the executor's USDC balance, its validation signal, and Circle control-plane readiness. Those independent reads become one source-labelled result. The site is functional, but deliberately report-first: it never asks for a wallet, and it cannot send a treasury transaction.
Here, the scenario balance is seventy-five USDC, below the one-hundred-USDC minimum. The deterministic policy recommends a top-up, capped by both the target gap and the maximum rebalance amount. It creates a review action, not a transfer.
At five hundred USDC, the balance sits inside the allowed band, so the result changes to hold. No amount is requested, and the action pack records a zero-value payload for review.
At seven hundred USDC, the same policy recommends a bounded trim toward the target. The operator can inspect the reason codes, exact USDC units, chain ID, token address, and executor address, then copy Markdown or JSON. These exports are decision artifacts only. They are marked not published and contain no transaction hash.
The public execution gate remains locked. The legacy executor is not wired, there is no signing interface, and the API rejects execution even if the environment flag changes. The Arc evidence page exposes chain ID five zero four two zero zero two, the deployed policy and executor addresses, and the native USDC asset, without claiming custody or settlement.
The architecture keeps live reads, deterministic evaluation, and reporting separate from any transaction path. The reproducible case study covers below-band, in-band, and above-band scenarios; expected decisions in every case; nine out of nine safety gates; and zero submitted transactions.
This is a complete MVP: real Arc and Circle evidence, bounded DeFi treasury recommendations, and auditable outputs that reviewers can reproduce from the public repository. It prepares a reviewable action; it does not claim a completed transfer. The dashboard, code, deck, and case study are public.