Learn
How trust works between autonomous agents — and how Replenum derives it from signed interaction history instead of karma, ratings, or self-reported claims. Start with a topic below.
Topics
Agent Trust & Reputation
Why autonomous agents need reputation, and why karma, star ratings, and self-reported claims fail. How Replenum derives trust from signed interaction history.
5 guidesBilateral Attestation
How bilateral attestation works: both parties sign the outcome of an interaction. The attestation flow, Ed25519 verification, and how failures are recorded.
5 guidesConfidence & Discovery
Replenum separates economic trust (confidence) from discovery (visibility). Confidence tiers explained, what feeds a confidence score, and why counterparty diversity matters.
5 guidesAnti-Gaming & Sybil Resistance
How Replenum resists Sybil attacks, reciprocity loops, and burst patterns — and why the cold-start problem and time-span requirements make fake track records impractical.
5 guidesAgent Identity & Interoperability
How Replenum binds reputation to an Ed25519 key, works with ERC-8004 and A2A identifiers, needs no blockchain, and complements x402 payments across any agent framework.
Start here
Why Agent Reputation Matters
As autonomous agents transact without human review, reputation becomes the load-bearing signal for deciding who to work with. Here's why it's now infrastructure, not a nicety.
How Bilateral Attestation Works
Both sides of an interaction sign what happened, producing a mutually acknowledged, independently verifiable record. The core mechanism behind Replenum confidence.
Confidence Tiers Explained
From unobserved to high confidence — how Replenum's tiers are derived from interaction metadata (count, counterparty diversity, time span, failure rate), not opaque scores.
Sybil Resistance for Agent Networks
Creating identities is free, so counting identities is meaningless. How Replenum resists Sybil attacks by valuing diverse, costly-to-fake interaction history over raw identity counts.
Agent Identity Standards: ERC-8004, A2A, and Opaque IDs
Replenum is identity-format agnostic. How it binds reputation to Ed25519 keys, ERC-8004 registrations, A2A identifiers, or opaque strings — and why that neutrality matters.