{
  "schema": "cryptowhat/0.1",
  "site": "https://cryptowhat.net",
  "title": "Operator's Notes",
  "brand": "Crypto What",
  "tagline": "Cryptocurrency, Gone Simple",
  "generated_at": "2026-08-25T02:44:02+00:00",
  "notice": "Crypto What publishes dated facts about accepting stablecoins, each one cited to a listed source. Anchoring proves a record existed on a date and has not been edited since; it says nothing about whether the content is correct. Nothing here is tax, legal, accounting or investment advice, and nothing here evaluates a specific business, token or counterparty.",
  "valid_as_of": "2026-08-24",
  "stale": false,
  "stale_reason": "last checked 2026-08-24, 0 days ago; within the 90-day review window",
  "anchor": {
    "schema": "cryptowhat.anchor/0.1",
    "note": "An anchor proves this record existed on this date and has not been edited since. It says nothing about whether the record is correct.",
    "ref": "notes:2026-08-24",
    "root": null,
    "leaf": null,
    "proof": null,
    "network": "eip155:84532",
    "tx": null,
    "verify_url": "https://cryptowhat.net/verify/?ref=notes:2026-08-24"
  },
  "url": "https://cryptowhat.net/notes.html",
  "notes": [
    {
      "id": "notes-x402",
      "slug": "notes/x402",
      "title": "Paying an API without an account",
      "url": "/notes/x402.html",
      "summary": "x402 is a way for one program to pay another for a single request, with no signup, no API key and no invoice. It uses an HTTP status code that has existed since the beginning and was never assigned a meaning: 402, Payment Required.",
      "pending": [],
      "sources": [
        {
          "n": 1,
          "label": "x402 documentation — Bazaar extension",
          "ref": "https://docs.x402.org/extensions/bazaar",
          "date": "2026-08-24"
        },
        {
          "n": 2,
          "label": "Coinbase Developer Platform — x402 quickstart for sellers",
          "ref": "https://docs.cdp.coinbase.com/x402/quickstart-for-sellers",
          "date": "2026-08-24"
        },
        {
          "n": 3,
          "label": "Coinbase Developer announcement — facilitator settlement pricing from 2026-01-01",
          "ref": "https://x.com/CoinbaseDev/status/1995564027951665551",
          "date": "2026-08-24"
        },
        {
          "n": 4,
          "label": "Visa via Artemis — cumulative x402 settled value to 2026-04-21",
          "ref": "https://www.visa.com/en-us/thought-leadership/innovation/agentic-payments-from-the-ground-up",
          "date": "2026-08-24"
        },
        {
          "n": 5,
          "label": "Independent authenticity audit of x402 volume, Q3 2026",
          "ref": "https://www.quantecon.ai/market-intelligence/insights-2026-q3",
          "date": "2026-08-24"
        },
        {
          "n": 6,
          "label": "Internal build record — agent-payment server on a test network, 2026-08-24",
          "ref": "team build log, 2026-08-24",
          "date": "2026-08-24"
        },
        {
          "n": 7,
          "label": "Ward — lane C, agent-era angle and feasibility (version state, probes and measurements, 2026-08-24)",
          "ref": "Deliverables/2026-08-24-cryptowhat-strategy/03-ward-lane-c-agent-era-angle-and-feasibility.md",
          "date": "2026-08-24"
        },
        {
          "n": 8,
          "label": "Session log — x402 payment server built and run on a test network, 2026-08-24",
          "ref": "Team Knowledge/session-logs/2026/08/2026-08-24-21-15_ward_thecryptoport-rung-3-x402-port.md",
          "date": "2026-08-24"
        }
      ],
      "valid_as_of": "2026-08-24",
      "stale": false,
      "stale_reason": "last checked 2026-08-24, 0 days ago; within the 90-day review window",
      "anchor": {
        "schema": "cryptowhat.anchor/0.1",
        "note": "An anchor proves this record existed on this date and has not been edited since. It says nothing about whether the record is correct.",
        "ref": "notes:notes-x402",
        "root": null,
        "leaf": null,
        "proof": null,
        "network": "eip155:84532",
        "tx": null,
        "verify_url": "https://cryptowhat.net/verify/?ref=notes:notes-x402"
      }
    },
    {
      "id": "notes-mcp",
      "slug": "notes/mcp",
      "title": "Machine-readable tools, in plain terms",
      "url": "/notes/mcp.html",
      "summary": "An assistant answers from what it learned. A tool lets it go and get something it could not know — a live price, the state of a system, a document written after training ended. The Model Context Protocol is the common way to offer those tools, so that any assistant can call any tool without a bespoke integration for each pair.",
      "pending": [],
      "sources": [
        {
          "n": 1,
          "label": "Official MCP registry",
          "ref": "https://registry.modelcontextprotocol.io/",
          "date": "2026-08-24"
        },
        {
          "n": 2,
          "label": "MCP registry source repository",
          "ref": "https://github.com/modelcontextprotocol/registry",
          "date": "2026-08-24"
        },
        {
          "n": 3,
          "label": "Registry search results, queried 2026-08-24",
          "ref": "registry.modelcontextprotocol.io/v0/servers?search=… (six queries: crypto, education, glossary, explain, and two fraud-screening terms)",
          "date": "2026-08-24"
        },
        {
          "n": 4,
          "label": "Ward — lane C, agent-era angle and feasibility (llms.txt probe across 26 crypto domains, 2026-08-24)",
          "ref": "Deliverables/2026-08-24-cryptowhat-strategy/03-ward-lane-c-agent-era-angle-and-feasibility.md",
          "date": "2026-08-24"
        }
      ],
      "valid_as_of": "2026-08-24",
      "stale": false,
      "stale_reason": "last checked 2026-08-24, 0 days ago; within the 90-day review window",
      "anchor": {
        "schema": "cryptowhat.anchor/0.1",
        "note": "An anchor proves this record existed on this date and has not been edited since. It says nothing about whether the record is correct.",
        "ref": "notes:notes-mcp",
        "root": null,
        "leaf": null,
        "proof": null,
        "network": "eip155:84532",
        "tx": null,
        "verify_url": "https://cryptowhat.net/verify/?ref=notes:notes-mcp"
      }
    },
    {
      "id": "notes-anchoring",
      "slug": "notes/anchoring",
      "title": "Anchoring, and what it proves",
      "url": "/notes/anchoring.html",
      "summary": "Anchoring answers one question: did this exact text exist, in this exact form, on this date, and has it been changed since?",
      "pending": [],
      "sources": [
        {
          "n": 1,
          "label": "Internal build record — document-anchoring service, 2026-08-24",
          "ref": "team build log, 2026-08-24",
          "date": "2026-08-24"
        },
        {
          "n": 2,
          "label": "Dex — CAD on Chain rung 1 build plan (anchoring path and gas measurement, 2026-08-24)",
          "ref": "Deliverables/2026-08-24-cad-on-chain-strategy/05-dex-rung1-build-plan.md",
          "date": "2026-08-24"
        }
      ],
      "valid_as_of": "2026-08-24",
      "stale": false,
      "stale_reason": "last checked 2026-08-24, 0 days ago; within the 90-day review window",
      "anchor": {
        "schema": "cryptowhat.anchor/0.1",
        "note": "An anchor proves this record existed on this date and has not been edited since. It says nothing about whether the record is correct.",
        "ref": "notes:notes-anchoring",
        "root": null,
        "leaf": null,
        "proof": null,
        "network": "eip155:84532",
        "tx": null,
        "verify_url": "https://cryptowhat.net/verify/?ref=notes:notes-anchoring"
      }
    }
  ]
}