Cryptocurrency has grown exponentially since the launch of<a href="https://www.lbank.com/academy/article/ar2n6l1746889696" rel="noopener noreferrer" target="_blank"> Bitcoin</a> in 2009. Beyond being a volatile decentralized means of exchange, various utility tokens, memecoins, and exchange tokens have emerged. There are also cryptocurrencies pegged to an existing currency. These kinds are known as stablecoins.&nbsp;<h2>Introduction to Stablechains</h2>Stablechains are <a href="https://www.lbank.com/academy/dictionary/arkuqw1725173524-evm" rel="noopener noreferrer" target="_blank">EVM</a>-compatible blockchains specifically created for stablecoins. As of this writing, stablecoins have a market capitalization of around $308 billion, up from $260 billion in 2024. This growth contributed to the development of stablechains built to support their efficiency.<h2>Benefits of Stablechains</h2>Stablechains improve stablecoin usage by reducing network congestion, automatically making payments faster. They also connect traditional finance with <a href="https://www.lbank.com/creator/what-is-defi-how-decentralized-finance-change-future-of-finance" rel="noopener noreferrer" target="_blank">decentralized finance</a>, expand global payments, and provide developers with extensible infrastructure. <img src="https://jid.rerrkvifj.com/media/customer/creatorSystem/758fdc9b-e8a9-4298-8c96-6b2d29094074.png"> Here’s a closer look at how stablechains benefit stablecoins: Lower and Predictable Fees: Instead of paying high gas fees on other chains where stablecoins are deployed as just one of many tokens, having a dedicated blockchain for these coins reduces network fees. Rather than dealing with unpredictable gas spikes, stablechains lower costs and make transaction fees more predictable. Faster Confirmations:&nbsp; A blockchain specifically optimized for stablecoins reduces network congestion that occurs on other blockchains. This allows large firms and enterprises to process transactions faster. Enterprise-Grade Reliability: The ability to process funds faster at stable prices makes stablechains an enterprise-friendly solution for companies and businesses processing large-scale transactions.&nbsp; Developer-Friendly: Stablechains let developers build applications that integrate stablecoin into existing business infrastructure. This makes payments more accessible, faster, and global.<h2>Plasma: Stablecoin Infrastructure for Instant Payments</h2> Plasma is a Layer-1 EVM-compatible blockchain built for stablecoin payments. It operates as an independent chain, using Bitcoin as its underlying layer to make USDT payments faster, cheaper, and more accessible. Plasma core features include zero-fees USDT transfers, a custom gas token, optional confidential transfers, a native Bitcoin bridge, XPL token, and PlasmaOne.&nbsp;<h2>How Plasma Works</h2>Plasma uses PlasmaBFT to handle payments faster. This system decides how blocks get proposed, checked, and finalized. Even if a few validators misbehave, the network can stay secure due to its <a href="https://www.lbank.com/academy/dictionary/ars1fi1745456940" rel="noopener noreferrer" target="_blank">Byzantine Fault Tolerance</a> setup. Plasma’s design takes cues from HotStuff, which is a modern BFT approach. This helps the network pick proposers quickly, communicate more efficiently, and get transactions processed without too much delay. Instead of handling transactions one by one, PlasmaBFT works on multiple steps at the same time: proposing new blocks, voting on them, and confirming them all together.&nbsp;<h2>Features of Plasma&nbsp;</h2>Plasma stablechain has six important features:&nbsp; Zero-fee USDT transfers: Plasma lets users transfer USDT without paying a gas fee. The network uses the Paymaster, a foundation-backed API relayer, to cover the transaction fees. Users are also not required to hold XPL (Plasma’s native token) before performing transfers.&nbsp; Custom gas tokens: Users can pay for transactions using bridged BTC (pBTC) or USDT. After paying with any of these ERC-20 supported payments, the&nbsp; Paymaster calculates the price data and automatically covers the cost. This removes the need for holding XPL tokens for fees.&nbsp; Optional confidential transfers: Plasma provides users with the option to keep sensitive transactions private without altering the core EVM behavior. It uses stealth addresses and encrypted notes to let users maintain privacy when required.&nbsp; Native Bitcoin bridge: Users can deposit real BTC and instantly mint pBTC, a 1:1 ERC-20 standard token backed by Bitcoin. This pBTC is issued by Layerzero Omnichain using the Token (OFT) standard, a system that lets tokens exist across blockchains without being rewrapped.&nbsp; XPL token:&nbsp; XPL is the native token of Plasma, used for transaction fees and to reward validators who secure the network. <h2>ARC: Circle’s USDC Settlement Stablechain</h2>Arc is a Layer-1 blockchain for stablecoins, built by Circle, the issuer of USDC. It is designed for faster, cheaper USDC payments while supporting developers and institutional users.As of this writing, Arc is in the testnet phase and scheduled for mainnet on an undisclosed date in 2026. <h2>How Arc Works</h2>Arc uses the Malachite consensus, a Tendermint-style BFT system, allowing blocks to finalize quickly, usually within a second. At the same time, it prevents transactions from being reversed once they go through. The validators use a Proof of Authority (POA) model to verify transactions. This gives exclusive access to top validators for block approvals. As a result, the network usually becomes more stable and predictable for large payment settlements.&nbsp; At the execution level, Arc uses Reth, a Rust-based Ethereum client and a full Ethereum node to handle accounts, balances, and smart contracts. This ensures fast block processing and high-throughput operations.&nbsp;&nbsp; Arc also supports account abstraction. This simplifies Arc usage and prevents developers from getting stuck with a fixed account setup. Instead, they can create Externally Owned Accounts (EOA) that eliminate wallet complexity using SDKs, paymasters, and bundlers.&nbsp; For example, SDKs let developers build applications with existing infrastructure instead of starting all over from scratch. Paymasters, on the other hand, let users pay for gas in stablecoin instead of volatile tokens. This makes transaction costs more predictable on the blockchain. Bundler groups multiple transactions together and submits them all at once. Eventually, this saves time and makes payment smoother on Arc.<h2>Features of Arc</h2> USDC-native stable fee: Arc uses USDC for gas. Its transactions operate on a 1-cent, 1-second, 1-click basis, because per transaction, the fees target about one cent. This prevents the volatility risks of using non-stablecoins or other tokens as gas fees. Deterministic finality: Payments are irreversible and are finalized within a second. This makes it easier for companies and enterprises handling a large chunk of payments to process money. Since the chain does not reorganize, developers can build applications without worrying about unexpected changes or any last-minute finality.&nbsp; Optional privacy layer: Arc lets institutions perform transactions privately whenever required. It uses Zero-Knowledge Proofs (ZK-Proofs) to hide transaction amounts while revealing the sender and receiver’s addresses. This ensures that companies and enterprises can carry out private transactions in alignment with compliance.&nbsp;<h2>Tempo: Stripe and Paradigm Layer-1 Stablechain</h2>Tempo is a layer-1 stablechain designed for global transfers. It was founded by Stripe and Paradigm. The goal is to support programmable payments, global remittance, micro-transactions, tokenized instant deposits, and agentic commerce. It is built to make these use cases easier, though, depending on how developers implement it.<h2>How Does Tempo Work?</h2>Tempo is a low-cost, high-throughput blockchain. It is built so that merchants can handle payments globally and developers can build apps that work with Ethereum. The network uses a fast BFT consensus system and can process over 100,000 transactions per second. Once a transaction goes through, it can’t be reversed. That makes the network highly reliable for payments, which is important for institutions. On the execution side, Tempo runs on <a href="https://www.paradigm.xyz/2022/12/reth" rel="noopener noreferrer" target="_blank">Reth</a>, a Rust-based Ethereum client. It supports Ethereum-style accounts, smart contracts, and developer tools while managing balances, transactions, and contract logic. It also introduces TIP-20, which is like ERC-20 but built specifically for payments. TIP-20 includes transaction memos, built-in reward mechanisms, and lets supported tokens pay for gas. This makes building payment-focused applications easier without adding extra steps. Tempo also has built-in compliance tools, such as allowlists, blocklists, and transaction monitoring. It comes with selective privacy features as well. This allows institutions to process payments while keeping sensitive data safe and following regulations.<h2>Features of Tempo</h2>Tempo has three core features:&nbsp; Built-in stablecoin Dex and gas payment: Instead of making payments with volatile tokens, users can pay using either USDT or USDC. Tempo’s network uses an <a href="https://www.lbank.com/academy/dictionary/argsbc1720867882-what-is-an-automated-market-maker" rel="noopener noreferrer" target="_blank">Automated Market Maker</a> (AMM) to automatically handle conversions, reducing the stress of manual token swaps.&nbsp; Dedicated payment lanes and metadata: Payments get their own lane at the protocol level. This keeps transactions fast and reliable even when the network is busy. Each payment can also include memo fields, like invoice IDs or order numbers. This helps businesses keep track of inventory, accounting, and other ERP tasks without adding extra coding.&nbsp; Modern wallet signing: It goes beyond regular wallets by allowing programmable smart accounts. Developers can enable gas sponsorship so users don’t need volatile tokens, bundle multiple transactions for efficiency, schedule payments in advance, and even use passkey authentication for passwordless access. It is a bit more complex than a simple wallet, but it gives the flexibility that developers need.<h2>Stable: Tether and Bitfinex Layer 1 Blockchain</h2>Stable is a Layer 1 blockchain for improving large-scale payment settlements. Incubated by Tether and Bitfinex, Stable serves as a payment infrastructure for businesses while also expanding Tether through its developer-friendly network.&nbsp;<h2>How Does Stable Work?&nbsp;</h2>Stable speeds up USDT transfers with a low-latency design using a sub-second block finality that delivers transactions almost immediately. Its execution layer automatically verifies balances and updates accounts, while StableBFT, a <a href="https://www.lbank.com/academy/dictionary/arww8s1713334997-delegated-proof-of-stake-explained" rel="noopener noreferrer" target="_blank">Delegated Proof-of-Stake</a> (DPos) system, ensures transactions are final.&nbsp; To keep updates fast, the network processes data in memory first before saving it to disk. Its peer-to-peer architecture, combined with RPC and indexing layers, prevents congestion, keeping transfers quick and reliable. It’s also EVM-compatible, allowing developers to build payment solutions using an ERC-20 smart contract.&nbsp;<h2>Features of Stable</h2>Stable has three core features:&nbsp; USDT as Gas Token: Stable uses USDTO, an omnichain stablecoin by Tether and Layerzero, as a gas fee. It’s an ERC-20 token that supports token transfers, approvals, and permits.&nbsp; USDT0 Cross-Chain Bridge: Users can bridge USDTO across various&nbsp; EVM&nbsp; chains such as Ethereum, Arbitrum, Base, Tron, HyperEVM, etc.&nbsp; Confidential Transfer: Stable uses Zk-proof to shield payment amounts on-chain while revealing transaction addresses for compliance purposes.&nbsp;<h2>Plasma vs Arc vs Tempo vs Stable</h2> <table style="width: 100%" class="ql-table-better"><temporary class="ql-table-temporary" style="width: 100%" data-class="ql-table-better"> </temporary><tbody><tr><td data-row="row-wxq0" class="">Stablechain</td><td data-row="row-wxq0" class="">Plasma</td><td data-row="row-wxq0" class="">Arc</td><td data-row="row-wxq0" class="">Tempo</td><td data-row="row-wxq0" class="">Stable</td></tr><tr><td data-row="row-mgy7" class="" height="52" style="height: 52px;">Consensus</td><td data-row="row-mgy7" height="52" style="height: 52px;" class="">PlasmaBFT (BFT-inspired), fast block confirmation</td><td data-row="row-mgy7" height="52" style="height: 52px;" class="">Malachite BFT (Tendermint-based), sub-second deterministic finality</td><td data-row="row-mgy7" height="52" style="height: 52px;" class="">High-speed BFT, sub-second finality, 100K+ TPS</td><td data-row="row-mgy7" height="52" style="height: 52px;" class="">StableBFT (Delegated Proof-of-Stake), sub-second finality</td></tr><tr><td data-row="row-u2cp" height="55" style="height: 55px;" class="">Execution Layer </td><td data-row="row-u2cp" class="" height="55" style="height: 55px;">Standard EVM, supports ERC-20; manages balances, smart contracts</td><td data-row="row-u2cp" height="55" style="height: 55px;" class="">Reth (Rust-based Ethereum client) supports account abstraction, SDKs, paymasters, and bundlers</td><td data-row="row-u2cp" height="55" style="height: 55px;" class="">Reth (Rust-based Ethereum client), full EVM support, and TIP-20 token standard</td><td data-row="row-u2cp" height="55" style="height: 55px;" class="">EVM-compatible, manages balances, transactions, and ERC-20 smart contracts</td></tr><tr><td data-row="row-9iuv" height="48" style="height: 48px;" class="">Gas Fee</td><td data-row="row-9iuv" class="" height="48" style="height: 48px;">Zero-fee USDT transfers via Paymaster; can pay in USDT or bridged BTC (pBTC)</td><td data-row="row-9iuv" height="48" style="height: 48px;" class="">USDC-native, predictable, and low-cost fee</td><td data-row="row-9iuv" height="48" style="height: 48px;" class="">Stablecoin gas via enshrined AMM (USDC/USDT), predictable costs</td><td data-row="row-9iuv" height="48" style="height: 48px;" class="">USDTO (Tether stablecoin) is used as a gas token</td></tr><tr><td data-row="row-e1fo" height="38" style="height: 38px;" class="">Privacy</td><td data-row="row-e1fo" height="38" style="height: 38px;" class="">Optional confidential transfers (stealth addresses, encrypted memos)</td><td data-row="row-e1fo" height="38" style="height: 38px;" class="">Opt-in privacy using ZK-proofs; hides amounts, addresses visible</td><td data-row="row-e1fo" height="38" style="height: 38px;" class="">Selective privacy features</td><td data-row="row-e1fo" height="38" style="height: 38px;" class="">Confidential transfer using Zk-proofs</td></tr><tr><td data-row="row-655s" height="43" style="height: 43px;" class="">Unique Features</td><td data-row="row-655s" height="43" style="height: 43px;" class="">Native BTC bridge (pBTC), PlasmaOne platform, and optional confidential transfers</td><td data-row="row-655s" class="" height="43" style="height: 43px;">Account abstraction, sub-second deterministic settlement, and opt-in privacy</td><td data-row="row-655s" height="43" style="height: 43px;" class="">Accepts both USDT and USDC, Dedicated payment lanes, structured payment metadata, and modern wallet signing</td><td data-row="row-655s" height="43" style="height: 43px;" class="">USDTO cross-chain bridge, and memory-mapped state for low latency</td></tr><tr><td data-row="row-vpnu" height="56" style="height: 56px;" class="">Target Users</td><td data-row="row-vpnu" class="" height="56" style="height: 56px;">Merchants, businesses, and developers</td><td data-row="row-vpnu" class="" height="56" style="height: 56px;">Institutions, enterprise payments, and developers</td><td data-row="row-vpnu" height="56" style="height: 56px;" class="">Merchants, global payment providers, and developers</td><td data-row="row-vpnu" height="56" style="height: 56px;" class="">Large-scale retail users, financial institutions, and developers</td></tr></tbody></table><h2>The Road Ahead for Stablechains</h2>Stablechains are Layer-1 blockchains designed to make USD transactions, such as USDT or USDC, faster and more stable. Rather than using existing blockchains built for entirely different solutions, stablechains are specifically developed for stablecoin payments and infrastructure. Currently, Plasma, Arc, Tempo, and Stable are the leading stablechains scaling global payments. With more financial companies adopting stablecoins, competition in this space is likely to increase in the coming years. Innovation, regulatory strategy, and network management will determine which stablechains survive and which become the next dead chain.&nbsp;

This guide explains what stablechains are and compares leading stablecoin-focused blockchains such as Plasma, Arc, Tempo, and Stable, highlighting their features, performance, and real-world use cases

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