Zero-dependency verifiable-claims MCP: validate safely, verify with allow_execution, self-test.
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💡 Paste the JSON block into your client's configuration file under mcpServers, then restart the application.
Machine-checkable claim contract + zero-dependency gate + real sample. 可复现≠可验证: repro+frozen prove internal consistency; external correctness is carried by the anchor. Agent-first: read
ai-catalog.jsonbefore this file for the machine-readable manifest.
mcp-name: io.github.elwsls/verifiable-claim-seed
Or clone the repo and run the gate directly:
| role | path |
|---|---|
| contract | verifiable_claim_seed/schema/verifiable-claim-v1.schema.json |
| gate | verifiable_claim_seed/verify_claim.py |
| real sample·航天 | verifiable_claim_seed/claims/VC-20260815-001.json(ISS 轨道高度,derived+frozen+repro) |
| real sample·健康 | verifiable_claim_seed/claims/VC-20260823-001.json(1 万步起源,text-quote 锚)· verifiable_claim_seed/claims/VC-20260823-002.json(步数-死亡趋平,text-quote 锚) |
| frozen data | verifiable_claim_seed/data/iss_20260814.tle |
| source snapshots | verifiable_claim_seed/data/wcrf-10000-steps-20260823.html(001 源快照)· verifiable_claim_seed/data/pmc-9289978-20260823.html(002 源快照) |
| repro script | verifiable_claim_seed/scripts/verify_iss.py |
| MCP server | verifiable_claim_seed/mcp_server.py(stdio,命令 verifiable-claim-mcp / verifiable-claim-seed) |
| MCP agent sim | verifiable_claim_seed/mcp_agent_sim.py(模拟陌生 agent 走完整 MCP 链路,零人工可用验证) |
| MCP registry manifest | server.json(io.github.elwsls/verifiable-claim-seed,PyPI/stdio) |
| exhibit·概念 | docs/news-appendix.md(人类样张,非机器声明——verify_tier 独立于 schema tier,不参与门禁) |
| exhibit·新闻稿 | docs/news-release-10000-steps.md(人类样张·新闻稿,非机器声明,对应 VC-20260823-001/002) |
| exhibit·学术声明 | docs/academic-claim-10000-steps.md(人类样张·学术声明,非机器声明,对应 VC-20260823-001/002) |
退出码:0 全过 / 1 硬失败(结构/格式/声明引用的文件缺失) / 2 用法·环境(命令行实参/待验证声明文件缺失) / 3 证据契约违规(哈希失配/复现不符)。
路径语义:声明内
data//scripts/路径相对包根(gate 脚本所在目录)解析,非相对声明 JSON。验证外部拷来的单文件声明前请保持完整仓库结构,或把整个声明放回verifiable_claim_seed/claims/。 text-quote 锚带字节快照:anchor.mode=text-quote必须带quote + locator + snapshot + snapshot_sha256(source snapshot 文件路径 + 64 位哈希)。gate 逐字节核验快照哈希,并抽取快照文本做「排版字符归一化 + 去空白」的紧凑比对——逐字引用句须真实存在于冻结快照(HTML 实体/渲染空格不会误报)。机器核的是"引用句在这份快照里";快照是否确为现实源头仍须人工/AI 核。 repro.script 为 Python:repro.script由python3执行(subprocess,120s 超时)——脚本必须是 Python。无沙箱:门禁不隔离,路径可穿越包根,且以调用者权限运行;安全完全依赖"只验证你信任的声明"。 零依赖说明:verify_claim.py是实际校验器(纯 stdlib,不依赖 jsonschema 库);schema/*.json是契约规格——两者由 self-test 的「schema-gate 契约同步」例机器核验不漂移。anchor.sha256 同样被钉死:指向仓库内文件即逐字节核验(失配 rc3)。 安全注意:verify会真实执行声明中的repro.script。只验证你信任的声明;验证来源不受信的声明等于在本机执行其声明的任意代码。 设计边界:门禁验"脚本按其声明输出",不验"脚本计算正确"——伪造repro.script打印正确哈希 + 期望数值即可通过 rc0。完整性来自冻结输入字节(anchor/frozen)与声明自洽,非数学。"只验证你信任的声明"因此是安全前提,不是装饰。
verifiable-claim-mcp(或 registry 启动别名 verifiable-claim-seed)暴露三工具(stdio,零依赖):
self_test — gate 自检,PASS/FAIL + case 数validate — 结构 + 哈希检查,不执行脚本(对不受信声明用这个)verify — 完整校验,须显式 allow_execution=true(会执行声明内 repro.script,即任意代码);无该标志一律拒绝MCP registry:server.json(io.github.elwsls/verifiable-claim-seed,PyPI/stdio)。
Claude Code 接线(pip install 后)——项目根放 .mcp.json(仓内已带示例),新会话自动加载三工具:
也可用 uvx verifiable-claim-seed(PyPI 发布后)。陌生 agent 端到端已验证:发现三工具 → validate 零执行 → verify 缺 allow_execution 拒 → 带标志过。
License: MIT. Zero dependencies (Python stdlib).
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