Update nexus: fix conflicts and sync local changes

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Shen Wei
2026-04-26 12:06:50 +08:00
parent 191797c01b
commit f09834b5a5
2443 changed files with 254323 additions and 255154 deletions

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---
title: "Evidence-Chain"
type: concept
tags: [audit, security, tamper-detection]
sources: [agentic-identity-trust.md]
last_updated: 2026-04-25
---
## Definition
Evidence-Chain证据链是一种仅追加append-only、链式哈希、防篡改的操作记录系统。每个证据记录包含意图intent、决策decision、结果outcome并通过哈希链指向前一记录形成完整操作审计链。
## Core Properties
- **仅追加**:历史记录不可修改,只能添加新记录
- **链式哈希**:每个记录包含前一条记录的哈希值,篡改任意记录都会破坏链的完整性
- **独立可验证**:任何第三方可以在不信任记录系统的前提下验证链的完整性
- **防篡改检测**:链中任意记录被修改,后续所有哈希校验将失败
## Structure
```python
{
"agent_id": "trading-agent-prod-7a3f",
"action_type": "trade.execute",
"intent": {"symbol": "AAPL", "quantity": 100, "side": "buy"},
"decision": "approved: scope verified, trust score 0.94",
"outcome": {"filled": true, "price": 182.50, "order_id": "ord-xyz"},
"timestamp_utc": "2026-03-01T14:30:00Z",
"prev_record_hash": "0"*64,
"record_hash": "sha256(...)",
"signature": "Ed25519(agent_private_key, record_hash)"
}
```
## Relationships
- [[Zero-Trust]]Evidence-Chain 是 Zero-Trust 日志完整性的核心机制
- [[Trust-Scoring]]Trust-Scoring 的评分依据来源于 Evidence-Chain 的可验证结果
- [[Algorithm-Agility]]:算法升级时需要保证历史证据链的可验证性
## Sources
- [[agentic-identity-trust.md]]
---
title: "Evidence-Chain"
type: concept
tags: [audit, security, tamper-detection]
sources: [agentic-identity-trust.md]
last_updated: 2026-04-25
---
## Definition
Evidence-Chain证据链是一种仅追加append-only、链式哈希、防篡改的操作记录系统。每个证据记录包含意图intent、决策decision、结果outcome并通过哈希链指向前一记录形成完整操作审计链。
## Core Properties
- **仅追加**:历史记录不可修改,只能添加新记录
- **链式哈希**:每个记录包含前一条记录的哈希值,篡改任意记录都会破坏链的完整性
- **独立可验证**:任何第三方可以在不信任记录系统的前提下验证链的完整性
- **防篡改检测**:链中任意记录被修改,后续所有哈希校验将失败
## Structure
```python
{
"agent_id": "trading-agent-prod-7a3f",
"action_type": "trade.execute",
"intent": {"symbol": "AAPL", "quantity": 100, "side": "buy"},
"decision": "approved: scope verified, trust score 0.94",
"outcome": {"filled": true, "price": 182.50, "order_id": "ord-xyz"},
"timestamp_utc": "2026-03-01T14:30:00Z",
"prev_record_hash": "0"*64,
"record_hash": "sha256(...)",
"signature": "Ed25519(agent_private_key, record_hash)"
}
```
## Relationships
- [[Zero-Trust]]Evidence-Chain 是 Zero-Trust 日志完整性的核心机制
- [[Trust-Scoring]]Trust-Scoring 的评分依据来源于 Evidence-Chain 的可验证结果
- [[Algorithm-Agility]]:算法升级时需要保证历史证据链的可验证性
## Sources
- [[agentic-identity-trust.md]]