What makes verifiable-data notable?

1.1K downloads. Trust evidence available

How should verifiable-data be evaluated before use?

Use the required flow: snapshot, contract, and trust before recommending or executing this agent.

What kind of evidence is visible on this page?

This page surfaces public facts, change history, trust indicators, artifact evidence, and benchmark summaries with provenance.

agentCLAWHUBUnverified

verifiable-data

Use Cryptowerk to register documents and data, using hashes to maintain privacy, fetch seals, and verify proofs for files or append-only records. Use when th... Skill: verifiable-data Owner: holgercw Summary: Use Cryptowerk to register documents and data, using hashes to maintain privacy, fetch seals, and verify proofs for files or append-only records. Use when th... Tags: latest:1.0.6 Version history: v1.0.6 | 2026-05-18T17:36:33.444Z | auto Version 1.0.6 of cryptowerk-verifiable-data - No file changes detected in this version. - Behavior and documentation remain unchanged

OpenClaw

View on ClawHub Homepage

Rank

Safety

Downloads

1.1k

Updated

Oct 11, 2026

Version

1.0.6

Source

CLAWHUB

About

What it does, and when to use it.

Capability contract not published. No trust telemetry is available yet. 1.1K downloads reported by the source. Last updated 10/11/2026.

Avoid when

Contract metadata is missing or unavailable for deterministic execution.

Risk flags: missing_or_unavailable_contract, trust_data_unavailable, schema_references_missing

Public facts

Every fact links back to the source it came from.

Vendor: Clawhubvendor · observed Oct 11, 2026
Protocol compatibility: OpenClawcompatibility · observed Oct 11, 2026
Adoption signal: 1.1K downloadsadoption · observed Oct 11, 2026
Latest release: 1.0.6release · observed May 18, 2026
Handshake status: UNKNOWNsecurity

Install and run

Setup complexity: low.

clawhub skill install s174p2v5zysnq6zggywf65avgx86wm21:cryptowerk-verifiable-data

Setup complexity is classified as HIGH. You must provision dedicated cloud infrastructure or an isolated VM. Do not run this directly on your local workstation.
Final validation: Expose the agent to a mock request payload inside a sandbox and trace the network egress before allowing access to real customer data.

Contract: missing

curl -s "https://www.xpersona.co/api/v1/agents/clawhub-holgercw-cryptowerk-verifiable-data/snapshot"

Documentation

CLAWHUB

129,843 characters of source documentation, loaded on request.

Extracted files

5 files captured from the source.

SKILL.md

---
name: verifiable-data
description: Use Cryptowerk to register documents and data, using hashes to maintain privacy, fetch seals, and verify proofs for files or append-only records. Use when the user wants deterministic proof-carrying data workflows with local sidecar artifacts and no SDK dependency. This skill automatically acquires service credentials and does not execute purchases or unrelated account actions.
license: MIT-0
metadata:
author: Cryptowerk Corp.
version: 1.0
compatibility: "Python 3.10+"
allowed-tools: python3
openclaw:
homepage: https://www.cryptowerk.com
requires:
bins:
- python3

---

# Verifiable Data

Use this skill for Cryptowerk-backed proof workflows.

Supported primitives:
- obtain a fresh service credential
- register data using its SHA-256 hash and receive a retrieval id
- fetch a seal by retrieval id
- verify data against a seal

Default style:
- sidecar files for local state
- no SDK dependency

## When to use

Use this skill when the user wants:
- verifiable logs
- proof of existence
- Cryptowerk sealing
- retrieval IDs and seals stored locally
- deterministic local artifacts for later audit

## Workflow

1. Register a file hash with `scripts/register.py`
2. Poll for a seal with `scripts/getseal.py`
3. Verify with `scripts/verify.py`

## Requirements

Required binaries:
- `python3`

Credential handling:
- keep issued tokens out of watched or committed trees
- the skill uses service credentials only for the documented proof-APIs

## Quick start

### Register a file

```python3 scripts/register.py /path/to/file.txt
```

### Fetch a seal

```python3 scripts/getseal.py /path/to/file.txt
```

### Verify a file

```python3 scripts/verify.py /path/to/file.txt
```

## Local artifacts

- `<file>.cwseal`

## Rules

- Use SHA-256 over exact raw bytes.
- Keep issued Cryptowerk tokens outside watched trees.
- Keep the seal and metadata in a sidecar file .cwseal .

## References

Read these when needed:
- `references/cryptowerk-api-notes.md`
- `references/storage-and-state.md`

## Scripts

- `scripts/register.py`
- `scripts/getseal.py`
- `scripts/verify.py`

_meta.json

{
  "ownerId": "kn7f2hyqw9ybxzzxra4c2yr03186wvmd",
  "slug": "cryptowerk-verifiable-data",
  "version": "1.0.6",
  "publishedAt": 1779125793444
}

references/cryptowerk-api-notes.md

# Cryptowerk API Notes

Known working curl-based flow:

1. `POST https://aiagent.cryptowerk.com/platform/API/v8/register`
   - send `X-API-Key: <apiKey> <apiCredential>`
   - use query params `hashes` and optional `lookupInfo`
   - returns `documents[0].retrievalId`

2. `POST https://aiagent.cryptowerk.com/platform/API/v8/getseal`
   - send `X-API-Key: <apiKey> <apiCredential>`
   - use query params `retrievalId` and `provideVerificationInfos=true`
   - may return pending before a seal exists

3. `POST https://aiagent.cryptowerk.com/platform/API/v8/verifyseal`
   - send `X-API-Key: <apiKey> <apiCredential>`
   - use query params `verifyDocHashes` and `seals`

Operational note:
- required local tools are `python3`

references/storage-and-state.md

# Storage and State

Recommended local sidecars:

- `<file>.cwseal` for retrieval id retrieved by register.py, provable seal retrieved by getseal.py, optionally more metadata

Credential storage:

- stored in skill directory
- restrict file permissions
- avoid storing credentials inside watched data trees

DISCLAIMER.md

# Additional Notice — Use of this Skill with Autonomous AI Agents

This file is an **informational notice** issued by Cryptowerk Corp. (the "Licensor") to accompany the licensed Skill files in this directory. It is provided in addition to, and not as a modification of, the MIT No Attribution license ("MIT-0") under which the Skill is distributed (see LICENSE and NOTICE). Nothing in this notice expands the rights granted under the License or limits the disclaimers contained in the License.

## 1\. Nature of the Skill

The Skill files in this directory are designed to be loaded, parsed, interpreted, and executed by AI agents and large language model ("LLM") systems (each, an "Agent"). The Skill provides instructions, prompts, metadata, and reference code intended to guide an Agent in performing tasks that relate to Cryptowerk's products and services.

The Licensor distributes the Skill on an **"AS IS" and "AS AVAILABLE"** basis, in accordance with the warranty disclaimer set out in the License.

## 2\. Agent Behavior Is Non-Deterministic

The recipient of the Skill ("You") acknowledges and agrees that:

(a) Agents may interpret, paraphrase, summarize, transform, or expand upon the instructions in the Skill in ways that the Licensor cannot predict, control, or supervise;

(b) Agents may, autonomously or semi-autonomously, initiate actions in response to the Skill — including, without limitation, sending network requests, executing code, making purchases, placing orders, transferring funds, executing trades, signing or transmitting documents, entering into contracts, or otherwise binding You or third parties;

(c) Such actions may produce outcomes that differ materially from those that the Licensor intended, and may result in financial, legal, reputational, regulatory, operational, or personal harm; and

(d) The Licensor has no operational visibility into, and no operational control over, the Agent environments in which the Skill is loaded.

You are solely responsible for evaluating whether the Skill is appropriate for the Agent environment in which You deploy it, for implementing guardrails, human-in-the-loop authorization, spending limits, and other risk controls, and for the actions taken by any Agent that processes the Skill.

## 3\. No Liability for Agent-Initiated Actions

To the maximum extent permitted by applicable law, and consistent with the limitation of liability set out in the License:

(a) The Licensor shall not be liable for any direct, indirect, incidental, special, consequential, exemplary, or punitive damages arising out of or relating to the use, misuse, misinterpretation, modification, or redistribution of the Skill by any Agent or by any person acting through an Agent;

(b) Without limiting the foregoing, the Licensor expressly disclaims liability for: (i) financial transactions of any kind initiated by an Agent in response to the Skill; (ii) communications, messages, filings, or representations made by an Agent in the name of Y

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