TBC (Turing Bit Chain)

Ultra-high TPS and 4GB large blocks: The self-fulfillment of prophecy
Satoshi Nakamoto had a clear prediction about the long-term evolution of blockchain, asserting in 2010:
"I am convinced that in 20 years, either Bitcoin's transaction volume will be very large, or there will be no transaction volume at all."
This prophecy directly points to Bitcoin's survival crisis: if it cannot support large-scale transactions, its "digital cash" positioning will be completely invalidated. TBC responds to this challenge with a large block approach:
The initial 4GB block size is just the starting point. Through an exclusive patented structure, it achieves "infinite scalability"—each new block is an independent data unit, theoretically capable of supporting PB-level data storage, suitable for future data floods like the metaverse and Internet of Things.
Meanwhile, the UTXO model's parallel verification mechanism breaks through the "single-thread bottleneck," with TPS surpassing 13,000+, a 1400-fold increase over the Bitcoin mainnet.
TBC proves that large blocks are not a "centralization compromise," but an inevitable technical path for Satoshi Nakamoto's "large-scale transaction" prophecy—only with sufficient capacity and efficiency can Bitcoin evolve from "digital gold" into a "global payment infrastructure."
UTXO Smart Contracts: The Return and Beyond of Programmability
Satoshi Nakamoto embedded scalability foresight in the design of the scripting system, writing:
"The design of scripting languages offers flexibility and scalability... in the future, multi-signature, time locks, and more complex logic can be added."
Although Satoshi did not explicitly mention smart contracts, his reserved design for "complex logic" paves the way for TBC's UTXO smart contracts.
TBC introduces the innovative BVM (Bitcoin Virtual Machine) architecture, embedding Turing-complete contract logic into the UTXO model: using the OP_PUSH_META opcode to bind contract code with transaction data, each UTXO executes contracts independently, miners only need local script verification without global state competition. This design increases contract execution efficiency by 10 times compared to Ethereum, and when failed, no Gas fee is deducted, making debugging nearly cost-free.
Meanwhile, TBC20 (FT protocol) and TBC721 (NFT protocol) support full on-chain NFT issuance, breaking the "pseudo-decentralization" dilemma of off-chain storage on Ethereum. TBC's smart contracts are not mere imitations of Ethereum but the ultimate realization of Satoshi's "script scalability" prophecy—allowing the UTXO model to maintain high efficiency while supporting complex financial logic such as DeFi and GameFi.