本篇笔记基于微软 AI-For-Beginners 课程的第二章：符号人工智能 (Symbolic AI) 进行整理，详细记录了符号 AI 与专家系统、知识表示、推理方法（前向与后向推理）以及本体与语义网的相关概念与核心架构。
深度调研报告：Psy Protocol（最新完整版）
项目概述与背景
Psy Protocol（前身为 QED Protocol）是一个无需信任、可水平扩展的 Layer-1 区块链和 ZK-Rollup 网络1, 2。其核心使命是打破传统区块链的“串行处理监狱”，通过重新定义状态存储方式和计算发生地，为高频订单簿 DEX、全链游戏 and AI 代理经济等高并发 Web3 应用提供互联网级的吞吐量（TPS），同时继承比特币和狗狗币等 PoW 基础层的安全性2, 4, 5。
Speculative Messaging — POC Implementation Design
Speculative Messaging — Minimal POC Implementation Design
Based on speculative-messaging-design.md.
This is the single source of truth for the minimal speculative-messaging POC on the current codebase, covering implementation design, end-to-end workflow, off-chain networking, and the follow-up roadmap.
Phase 1 scope — Inclusion-based messaging with Late Block Proofs. Removes message storage from relay chain state while keeping latency at ~6–12s (1–2 relay blocks for inclusion). This is the first implementation slice of the broader offchain-XCMP replacement direction — the conservative inclusion-based path of the general commitment-driven speculative messaging model.
Speculative Messaging — Original Design Document
Speculative Messaging
Design Document
| Field | Value |
|---|---|
| Authors | eskimor |
| Status | Draft |
| Version | 0.2 |
| Related Designs | Low-Latency Parachains v2 |
Table of Contents
- Introduction
- Motivation
- Goals
- Non-Goals
- Background
- Solution Overview
- Detailed Design
- Trust Domains
- Censorship Considerations
- Comparison with Alternatives
- Implementation Considerations
- Security Analysis
Introduction
Speculative Messaging introduces a new cross-chain messaging mechanism for Polkadot that replaces HRMP with a more scalable, lower-latency alternative. By using cryptographic accumulators (such as Merkle Mountain Ranges) to commit to messages off-chain and having the relay chain enforce these commitments at inclusion time, we achieve:
Polkadot Speculative Messaging — Design Deep Dive
Speculative Messaging is the companion design to Low-Latency Parachains v2. Its goal: replace HRMP (Horizontal Relay Message Passing) with a faster, more scalable cross-chain communication mechanism built on MMR accumulators, on-chain commitments, and off-chain message delivery.
Polkadot XCMP MMD — Minimal POC
Forum background: XCMP Design Discussion (Polkadot).
XCMP MMD - Design Document
Overview
XCMP MMD (Merkle Mountain Range based cross-chain messaging) is a proof-of-concept for trustless cross-chain message delivery between parachains. It uses a three-tier cryptographic proof system that leverages the relay chain’s BEEFY finality gadget and Merkle structures.
Problem Statement
HRMP (Horizontal Relay-routed Message Passing) stores message payloads on the relay chain, which is expensive in terms of storage and execution costs.
x402 协议笔记：Stripe 如何让 AI 代理自主支付
x402 是一种面向机器对机器（M2M）支付的开放协议，核心思路是复活 HTTP 402「Payment Required」状态码，让 API 在返回付费要求时，客户端（尤其是 AI Agent）能自动完成支付并重试请求，无需人工介入、无需预先注册账号。
Stripe 在 2026 年将其接入现有支付基础设施：开发者仍用熟悉的 PaymentIntent 和 Dashboard，底层走 USDC 链上结算；Coinbase 则围绕同一协议构建了 Agent.market 代理经济生态。本文综合 BitKan 解读、Stripe 官方文档 与示例代码，整理一份学习笔记。
Building Effective AI Agents & Claude Code Best Practices
When building AI agents, the most successful implementations typically rely on simple, composable patterns rather than overly complex frameworks. Agentic systems generally fall into two categories: workflows, where LLMs and tools are orchestrated through predefined code paths, and agents, where LLMs dynamically direct their own processes and tool usage.
实战教程：如何使用 LangGraph 和 LLM Studio 构建专属 AI Agent
本篇笔记基于 TensorOps 机器学习工程师 Clara Gadelho 的视频教程 How to Create Your Own AI Agent - Tutorial with Clara Gadelho 整理，详细记录了如何基于现代 LLM 框架构建一个具备工具调用和记忆能力的 ReAct 智能体（旅行助理）。
Investigation Report: Zcash
Project Overview & Background
Zcash is a decentralized protocol and privacy-protecting digital currency designed to function as encrypted electronic cash. It holds the distinction of being the first cryptocurrency to pioneer and implement zero-knowledge encryption specifically for private peer-to-peer payments. Its core mission is to protect users’ right to privacy through end-to-end encryption, ensuring that individuals retain full control over their funds without relying on traditional banks.