KEY TAKEAWAYS
- World Chain introduces Priority Blockspace for Humans (PBH) to prioritize human transactions and reduce congestion caused by automated bots.
- PBH launches on the Sepolia testnet, developed with Flashbots, Optimism, and Paradigm/Ithaca, to ensure fair transaction ordering for verified users.
- An incentivized testnet event at ETHDenver will stress-test PBH, offering prizes for participants and rewards for identifying vulnerabilities.
In the evolving landscape of Web3, automated bots and high-frequency traders have increasingly dominated block inclusion on many blockchains, often sidelining regular users. A striking example of this trend is that an estimated 70% of on-chain stablecoin transactions in 2023 were submitted by bots, leading to significant congestion.
To address this issue, World Chain has introduced Priority Blockspace for Humans (PBH), a novel solution designed to prioritize human transactions. This initiative, described as a ‘highway for humans,’ aims to provide top-of-block priority for verified human users, reducing the need for excessive gas fees to ensure transaction completion. The open-source infrastructure also seeks to prevent exploitation by automated systems that manipulate transaction ordering for profit.
PBH Launches on Sepolia Testnet
PBH is set to launch on the World Chain Sepolia testnet, marking a significant step toward aligning blockspace allocation with human-centric applications. Developed in collaboration with Flashbots and in consultation with Optimism and Paradigm/Ithaca, PBH is designed to maintain blockchain as a tool for people, rather than a battleground for automated trading strategies.
This new transaction ordering policy grants verified World ID holders top-of-block priority, making transactions fairer for real users. In the future, this priority will extend to AI agents acting on behalf of humans. Additionally, PBH plans to introduce an EIP-1559-style fee market for verified transactions, enhancing user experience by allowing more predictable and accessible transaction inclusion.
Incentivized Testnet Event at ETHDenver
To ensure PBH’s robustness and security before its mainnet deployment, World Chain operator Tools for Humanity is launching an incentivized testnet event in partnership with Flashbots. This event, running from February 28 to March 7, 2025, is designed to stress-test PBH under real-world conditions.
The testnet includes a competitive on-chain game where participants race to call a specific function first in each block, with prizes for the highest scores. Security researchers and engineers are also invited to test PBH’s limits by identifying vulnerabilities, with rewards based on the severity of their findings.
Built with Flashbots and Optimism, PBH leverages Flashbots’ external block builder architecture for human-prioritized block construction. The incentivized testnet will provide valuable insights into PBH’s interaction with Optimism’s OP Stack and World Chain’s sequencing infrastructure.
For more information, visit the official announcement here.
Why This Matters: Impact, Industry Trends & Expert Insights
World Chain’s launch of Priority Blockspace for Humans on the Sepolia testnet introduces a mechanism to prioritize human transactions over automated systems, addressing congestion issues caused by bots.
A recent industry report highlights that blockchain interoperability is a major trend, aiming to enhance ecosystem connectivity. The introduction of human-centric blockspace allocation by World Chain aligns with this trend by focusing on scalable, human-friendly applications.
As per insights from CoinGape, experts have pointed out potential privacy concerns associated with the PBH initiative, particularly regarding biometric data collection. This supports the significance of World Chain’s approach in balancing user experience with data security considerations.
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