TBC (Turing Bit Chain)

UTXO Native Smart Contracts: Overlooked Optimal Solution and TBC Practice
While the market is still debating between L2 Rollups and heterogeneous chains, TuringBitChain has chosen a more fundamental technical path: transforming the UTXO model itself to support Turing-complete smart contracts on Layer-1. This is not just "another Bitcoin L2," but a bottom-up reconstruction starting from transaction generation methods.
The core innovation of TBC lies in its TuringContract. It uses an original OP_PUSH_CODE technology to embed smart contract code and data into the transaction creation and consumption chain of UTXOs, achieving "partial Turing completeness." Each contract's execution is isolated within a specific UTXO set, fundamentally different from account models where all contracts share a global state. The immediate benefit is: transactions involving different contracts can be processed in parallel without blocking each other.
What does this mean for stablecoin scenarios? Imagine a cross-border payment platform handling millions of small USDT remittances from Southeast Asia, Africa, and Latin America simultaneously. On Ethereum, these transactions enter the same mempool, compete for block space, causing network congestion and soaring fees. In TBC's UTXO model, as long as these transactions consume different UTXOs (which is common), they can be verified and packaged in parallel by different nodes in the network. This is the very foundation of infinite scalability.

Performance data clearly illustrates the difference. The TBC testnet has achieved over 13,000 TPS, not at the expense of decentralization (it uses the same SHA-256 PoW consensus as Bitcoin), but as a natural result of unleashing UTXO parallelism. In contrast, Ethereum's mainnet TPS has long been between 15-30, and even with Optimistic Rollup, its theoretical TPS ceiling is usually around 2,000-4,000, with withdrawal delays.

Some might counter: "Other UTXO chains, like Cardano, also support smart contracts, but haven't seen an order-of-magnitude performance boost." The key difference lies in the implementation layer. Cardano's EUTXO model is indeed innovative, but its contract execution still largely depends on coordinating global state. TBC's TuringContract is a pure Layer-1 implementation, where contract logic directly takes effect within UTXO consumption rules, without needing additional consensus or state layers. The path is shorter, and efficiency is higher.
More importantly, the fee model. Traditional blockchains face the paradox that "more users mean higher fees," severely limiting stablecoins' development as inclusive financial tools. TBC's layered hashing and pipeline processing design enable dynamic scaling of block capacity to terabyte levels. One of its economic design goals is to make transaction fees approach zero as user scale grows. This is a disruptive advantage for micro-payment scenarios involving millions of transactions.

Of course, challenges exist. The developer ecosystem on the UTXO model needs to be built from scratch, and smart contract programming paradigms differ from EVM, creating short-term adoption barriers. But the existence of TuringBridge cross-chain modules provides a channel for ecosystem integration. In the long run, a dedicated settlement layer optimized for value transfer—simple and high-performance—has irresistible appeal for stablecoin issuers and payment service providers.

From "parasitic" to "symbiotic": a future designed specifically for value circulation
Looking ahead, the stablecoin market will not stop at $230 billion. As countries explore CBDCs and traditional financial assets continue to go on-chain, the scale of on-chain value flow will grow exponentially. At that point, the bottlenecks of underlying infrastructure will become even more apparent.
The future landscape may no longer be "a single public chain swallowing all applications," but rather a division of specialized roles. Some chains focus on high-complexity DeFi derivatives trading (requiring strong state sharing), while others focus on high-throughput asset settlement and payments. A high-performance settlement layer based on UTXO native smart contracts is likely to become the ultimate form of the latter track.
In this scenario, TBC and its associated BVM ecosystem have a very clear positioning: not as "the world computer," but as "the world settlement layer." It does not aim to host all types of smart contracts but focuses on doing the best job of value transfer (including stablecoins, asset tokens, CBDCs)—achieving security like Bitcoin, speed like the Lightning Network, and low cost like text messaging.
When massive transactions such as cross-border payments, payroll, and supply chain finance no longer require paying high premiums for network congestion and uncertainty, true financial inclusion will have taken a key step. Stablecoins will no longer just be a medium for speculative trading or a tool to escape fiat devaluation, but a "new blood" to reshape the efficiency of global capital flows.