io.github.elwsls/verifiable-claim-seed
Click on "Install Server".
Wait a few minutes for the server to deploy. Once ready, it will show a "Started" state.
In the chat, type
@followed by the MCP server name and your instructions, e.g., "@io.github.elwsls/verifiable-claim-seedvalidate the claim file VC-20260815-001.json"
That's it! The server will respond to your query, and you can continue using it as needed.
Here is a step-by-step guide with screenshots.
verifiable-claim-seed
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
install
pip install verifiable-claim-seed # zero dependencies, Python stdlib only
verify-claim self-test # prove the gate works in this environmentOr clone the repo and run the gate directly:
python3 verifiable_claim_seed/verify_claim.py self-testRelated MCP server: HREVN MCP Server
entrypoints
role | path |
contract |
|
gate |
|
real sample·航天 |
|
real sample·健康 |
|
frozen data |
|
source snapshots |
|
repro script |
|
MCP server |
|
MCP agent sim |
|
MCP registry manifest |
|
exhibit·概念 |
|
exhibit·新闻稿 |
|
exhibit·学术声明 |
|
verify
verify-claim self-test # pip 安装后
verify-claim verify <claim.json> [--report out.json]
# 仓库内直接跑:
python3 verifiable_claim_seed/verify_claim.py self-test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。
MCP server
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:
{ "mcpServers": { "verifiable-claim-seed": { "command": "python3", "args": ["verifiable_claim_seed/mcp_server.py"] } } }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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