Circle has recently unveiled a research paper that could significantly change transaction processing on the Arc blockchain. Named the Arc Multi-Proposer Protocol, or AMP, this innovative architecture addresses a major challenge in the cryptocurrency space: deciding transaction order and managing the associated profits.
The paper, accessible via arXiv since May 22, introduces a solution where multiple dedicated proposers will bundle transactions into payloads, moving away from the traditional model dominated by individual validators. By distributing this responsibility, AMP enforces strict rules that dictate transaction ordering, enhancing fairness and transparency.
#How Does AMP Operate?
Understanding how AMP operates is crucial. The protocol operates over Arc’s current Malachite consensus engine, which already offers rapid, sub-second finality. The AMP framework does not alter the core consensus mechanisms but introduces two pivotal features: bounded inclusion guarantees ensure that transactions are included in blocks, thus protecting users from reliance on a single validator’s decision. Fixed and deterministic transaction ordering eliminates the ambiguity that usually allows some participants to benefit at the expense of regular users.
The core of this architectural innovation lies in the separation of transaction dissemination from consensus agreement. By decoupling these functionalities, AMP seeks to directly counter the problem of miner extractable value (MEV). Additionally, the paper highlights safeguards against private mempool exploits, which can compromise transaction integrity.
#Why Is AMP Important for Developers?
The AMP protocol stands out because it addresses the MEV issue from an infrastructure perspective. Rather than placing the burden of MEV protection on each individual application, AMP integrates fairness guarantees directly into the transaction processing system. This design philosophy aligns with Arc's vision as a blockchain tailored for stablecoin-centric finance, specifically using USDC as its gas token, which offers predictable fees and enterprise-focused capabilities.
#What Is the Current Status of Arc?
Arc launched its public testnet on October 28, 2025, two months after its initial announcement. Currently in the testing phase, the mainnet beta is anticipated for release in late 2026. Circle encourages collaboration with design partners, suggesting that AMP’s final version may evolve based on developer feedback before full deployment. Recently, Circle successfully raised $222 million in a presale for Arc tokens, indicating strong market interest, with a fully diluted valuation estimated at $3 billion.