2026-04-17 Пятница

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Building Trustless AI Agents: ERC-8004 Security Audit Guide

ERC-8004, the Trustless Agents standard deployed on Ethereum, introduces a verifiable and trust-minimized framework for AI Agent identity and reputation management through three core registries: Identity, Reputation, and Validation. The **Identity Registry** (ERC-721 based) mints a unique AgentID (an NFT) for each agent, with a `tokenURI` pointing to an off-chain registration file. This file contains the agent's basic info, service endpoints, and capabilities. A critical security feature is domain verification, requiring agents to host a signed file at a specific path on their domain to prove ownership and prevent spoofing. Key audit points include access controls for URI updates, use of immutable storage, proper cryptographic signature validation (EIP-712), and prevention of signature replay attacks. The **Reputation Registry** provides a standard interface for submitting and aggregating feedback. It uses a "Payment-Proof Linking" mechanism, where feedback submissions must include a proof of a payment (e.g., an x402 transaction hash), making Sybil attacks economically costly. Audit focuses include enforcing payment proof validity, constraining score ranges, and ensuring robust, manipulation-resistant off-chain aggregation algorithms. The **Validation Registry** allows agents to submit their work for independent verification, crucial for high-stakes tasks. It supports two models: 1. **Cryptoeconomic Validation:** Agents stake funds, which can be slashed via a fraud-proof system if malfeasance is proven. Audits must check proof submission windows, decentralized adjudication logic, and sufficient stake levels. 2. **Cryptographic Validation:** This uses Trusted Execution Environments (TEEs) or Zero-Knowledge Machine Learning (zkML). For TEEs, audits must verify proof timeliness and content. For zkML, audits must ensure the use of audited verifier libraries and prevent model-swapping attacks. Overall, a comprehensive security audit of an ERC-8004 implementation must scrutinize all three registries, their interactions, and standard smart contract vulnerabilities to uphold its promise of a decentralized, trustless agent ecosystem.

marsbit03/05 09:10

Building Trustless AI Agents: ERC-8004 Security Audit Guide

marsbit03/05 09:10

Bear Market Script: Which Act Is Your 'Faith' Experiencing?

The article "Bear Market Script: Which Act Is Your 'Faith' Experiencing?" by TVBee analyzes the typical stages of a cryptocurrency bear market, using Bitcoin (BTC) and Tether (USDT) market capitalization as key indicators. It identifies 3-4 phases: 1. **Reaction Phase (Faith Intact)**: BTC declines while USDT rises, indicating some investors still hold hope. 2. **Confirmation Phase (Faith Collapses)**: BTC may fall or stagnate, and USDT decreases, confirming the bear market as capital exits. 3. **Accumulation Phase (Faith Consolidates)**: BTC may drop or trade sideways, but USDT rises again, suggesting stronger believers are preparing to re-enter. 4. **Final Panic Phase (Black Swan)**: A optional phase where both BTC and USDT fall sharply due to extreme events (e.g., 2022’s Luna collapse). The author suggests the current market (early 2026) is likely in Phase 2, driven by geopolitical tensions like the Iran conflict. The duration of this phase depends on external factors such as Trump administration policies, monetary changes, and potential black swan events. Ideal entry points for investors are during Phase 3 (USDT rising) or in the recovery phase (right-side entry), where USDT growth and BTC stabilization signal a market rebound. The analysis notes that bear markets are evolving—Phase 1 is shortening, but Phase 2 remains unpredictable due to external shocks. Caution and patience are advised.

marsbit03/05 07:45

Bear Market Script: Which Act Is Your 'Faith' Experiencing?

marsbit03/05 07:45

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