Multithreaded Execution

How Qai Network processes transactions in parallel.

From Single-Core to Multi-Core Blockchains

In the early days of computing, processors could only handle one task at a time. Everything had to wait in line, creating bottlenecks that limited performance. The invention of multi-core CPUs changed everything - suddenly computers could process multiple tasks simultaneously, unlocking massive performance gains. Qai brings this same revolution to blockchain technology.Traditional blockchains operate like single-core processors. Every transaction must queue up and wait its turn through one processing channel. During busy periods, this creates massive congestion - like trying to funnel an entire city’s traffic through a single lane. Users experience high fees, long wait times, and failed transactions.The Multi-Core Solution: Qai’s multithreaded execution allows multiple blockchain threads to process transactions in parallel, just like a modern CPU handles multiple tasks simultaneously. Each zone chain operates as an independent execution thread, processing its own transactions while staying synchronized with the broader network.How Qai Achieves This: The breakthrough comes from separating two concepts that traditional blockchains tightly couple: local consistency (everyone in a zone agrees) and global consensus (the entire network agrees). In Qai:

• Zones achieve local consensus immediately for their transactions

• Global consensus happens gradually as blocks are woven into the hierarchy

• Users get fast confirmations while maintaining network-wide security

This architecture enables true parallel processing - multiple zones can produce blocks simultaneously without waiting for each other, dramatically increasing overall throughput.