This guide shows how onchain agents can structure and sign data using Base Mainnet core contracts—one for registering schemas and one for making attestations. By the end, you’ll see how to create a straightforward subscription service that tracks “who’s subscribed” to an agent.

We’re excited to introduce an open-source transitive trust algorithm designed to calculate and propagate trust within P2P reputation systems. This algorithm ensures that trust is earned fairly and accurately reflected, particularly in complex, high-stakes environments. We invite you to explore the whitepaper and share your feedback.

How do we know who or what to trust online & onchain?

The attestation layer is quickly evolving as a critical piece of infrastructure for trust online and onchain. Its significance has the potential to be on par with foundational elements like ENS and the EVM, which have been instrumental in shaping the trajectory of our ecosystem.

Account abstraction (AA) has undoubtedly paved the way for immense improvements in the Ethereum ecosystem. Now, combine it with the power of attestations, and we open up a world of possibilities, from enhanced control over authorization logic to deeper transaction context and better user security.

Sybil resistance is the outcome of more comprehensive digital identities. This article explores how attestations can unite the ecosystem and create a future that’s resilient to Sybil attacks.

Discover the power of "Private Data Attestations" using Merkle Trees in our latest feature release. This guide will walk you through the core principles of Merkle Trees and unlock the potential of private data attestations for various real-world applications.

Ethereum Attestation Service is now live. Learn more about EAS and its deployment plans.

Explore how Ethereum-based attestations can enable more transparent, portable, and fair governance in decentralized communities. In this article, we discuss the limitations of centralized platforms and how attestations can be utilized to promote further decentralization of community governance and behaviors.