Evidence row 3046

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://offercheck.offercheck.workers.dev/v1/check/url"
    ],
    [
      "x402",
      "https://offercheck.offercheck.workers.dev/v1/fx"
    ],
    [
      "x402",
      "https://offercheck.offercheck.workers.dev/v1/price"
    ],
    [
      "x402",
      "https://offercheck.offercheck.workers.dev/v1/read"
    ],
    [
      "x402",
      "https://offercheck.offercheck.workers.dev/v1/verify/offer"
    ]
  ],
  "name": "offercheck.offercheck.workers.dev",
  "owner_address": null,
  "raw": {
    "caip2_networks": [
      "eip155:8453"
    ],
    "category": "",
    "description": "",
    "domain": "offercheck.offercheck.workers.dev",
    "endpoints": [
      {
        "description": "Check a URL before you cite, visit or trust it: liveness, final URL and redirect chain, soft-404 detection, page title, domain registration age (RDAP), robots.txt policy for AI agents, and Wayback Machine snapshot availability. $0.002 per check.",
        "method": "GET",
        "parameters": [
          {
            "default": null,
            "description": "",
            "enumValues": [],
            "example": "https://example.com/docs/page",
            "group": "query",
            "name": "url",
            "required": false,
            "type": "string"
          }
        ],
        "pricing": {
          "amount": "0.002",
          "currency": "USDC",
          "maxAmount": "",
          "minAmount": "",
          "network": "eip155:8453",
          "scheme": "exact"
        },
        "providerName": "",
        "quality": {
          "l30DaysTotalCalls": "10",
          "l30DaysUniquePayers": "5"
        },
        "serviceName": "offercheck",
        "tags": [
          "verification",
          "ecommerce",
          "price",
          "availability",
          "url"
        ],
        "url": "https://offercheck.offercheck.workers.dev/v1/check/url"
      },
      {
        "description": "Convert between 30 major currencies (USD, EUR, GBP, JPY, CHF, CNY, INR, ILS, AUD, CAD, ...) using the European Central Bank's daily reference rates: rate and converted amount for one or many target currencies, optional historical date back to 1999. Returns the ECB rate date and source. $0.002 per call.",
        "method": "GET",
        "parameters": [
          {
            "default": null,
            "description": "",
            "enumValues": [],
            "example": "100",
            "group": "query",
            "name": "amount",
            "required": false,
            "type": "string"
          },
          {
            "default": null,
            "description": "",
            "enumValues": [],
            "example": "USD",
            "group": "query",
            "name": "from",
            "required": false,
            "type": "string"
          },
          {
            "default": null,
            "description": "",
            "enumValues": [],
            "example": "EUR,GBP",
            "group": "query",
            "name": "to",
            "required": false,
            "type": "string"
          }
        ],
        "pricing": {
          "amount": "0.002",
          "currency": "USDC",
          "maxAmount": "",
          "minAmount": "",
          "network": "eip155:8453",
          "scheme": "exact"
        },
        "providerName": "",
        "quality": {
          "l30DaysTotalCalls": "11",
          "l30DaysUniquePayers": "7"
        },
        "serviceName": "offercheck",
        "tags": [
          "finance",
          "fx",
          "exchange-rate",
          "currency",
          "crypto"
        ],
        "url": "https://offercheck.offercheck.workers.dev/v1/fx"
      },
      {
        "description": "Current prices for cryptocurrencies and tokens by symbol (btc, eth, sol, usdc, ...), CoinGecko slug, or on-chain token address on Base, Ethereum, Arbitrum, Solana and 100+ chains, using DeFiLlama's aggregated DEX/CEX pricing with a per-asset confidence score. Quote in USD or any ECB fiat currency. Up to 25 assets per call. $0.002 per call.",
        "method": "GET",
        "parameters": [
          {
            "default": null,
            "description": "",
            "enumValues": [],
            "example": "btc,eth,base:0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
            "group": "query",
            "name": "ids",
            "required": false,
            "type": "string"
          },
          {
            "default": null,
            "description": "",
            "enumValues": [],
            "example": "USD",
            "group": "query",
            "name": "vs",
            "required": false,
            "type": "string"
          }
        ],
        "pricing": {
          "amount": "0.002",
          "currency": "USDC",
          "maxAmount": "",
          "minAmount": "",
          "network": "eip155:8453",
          "scheme": "exact"
        },
        "providerName": "",
        "quality": {
          "l30DaysTotalCalls": "10",
          "l30DaysUniquePayers": "6"
        },
        "serviceName": "offercheck",
        "tags": [
          "finance",
          "fx",
          "exchange-rate",
          "currency",
          "crypto"
        ],
        "url": "https://offercheck.offercheck.workers.dev/v1/price"
      },
      {
        "description": "Read any public web page as clean Markdown: main-content extraction (navigation, footers, scripts and hidden elements removed), headings, lists, tables, code blocks, links (absolute, deduplicated), images, plus title, description, canonical URL, language, author and publish date, and a content hash + fetch time as evidence. JSON and plain-text URLs are returned as-is. No JavaScript rendering. $0.001 per page.",
        "method": "GET",
        "parameters": [
          {
            "default": null,
            "description": "",
            "enumValues": [],
            "example": "https://example.com/blog/post",
            "group": "query",
            "name": "url",
            "required": false,
            "type": "string"
          }
        ],
        "pricing": {
          "amount": "0.001",
          "currency": "USDC",
          "maxAmount": "",
          "minAmount": "",
          "network": "eip155:8453",
          "scheme": "exact"
        },
        "providerName": "",
        "quality": {
          "l30DaysTotalCalls": "30",
          "l30DaysUniquePayers": "12"
        },
        "serviceName": "offercheck",
        "tags": [
          "web",
          "read",
          "markdown",
          "scrape",
          "extract"
        ],
        "url": "https://offercheck.offercheck.workers.dev/v1/read"
      },
      {
        "description": "Verify the live price and availability of a product at a URL before you buy or quote it. Fetches the page now, extracts price/currency/availability from JSON-LD, Shopify JSON, OpenGraph or microdata, and returns evidence (method, snippet, content hash, fetch time) plus a confidence score. $0.01 per check.",
        "method": "GET",
        "parameters": [
          {
            "default": null,
            "description": "",
            "enumValues": [],
            "example": "https://shop.example.com/products/widget",
            "group": "query",
            "name": "url",
            "required": false,
            "type": "string"
          }
        ],
        "pricing": {
          "amount": "0.01",
          "currency": "USDC",
          "maxAmount": "",
          "minAmount": "",
          "network": "eip155:8453",
          "scheme": "exact"
        },
        "providerName": "",
        "quality": {
          "l30DaysTotalCalls": "9",
          "l30DaysUniquePayers": "5"
        },
        "serviceName": "offercheck",
        "tags": [
          "verification",
          "ecommerce",
          "price",
          "availability",
          "url"
        ],
        "url": "https://offercheck.offercheck.workers.dev/v1/verify/offer"
      }
    ],
    "enriched": false,
    "iconUrl": "",
    "id": "offercheck-offercheck-workers-dev",
    "integrationType": "",
    "isNew": false,
    "name": "offercheck.offercheck.workers.dev",
    "networks": [
      "Base"
    ],
    "priceSummary": {
      "avgCostBasis": "exact",
      "avgCostPerTransaction": "0.0034",
      "currency": "USDC",
      "maxAmount": "0.01",
      "minAmount": "0.001"
    },
    "provider": "offercheck.offercheck.workers.dev",
    "providerUrl": "",
    "serviceName": "offercheck",
    "tags": [
      "verification",
      "ecommerce",
      "price",
      "availability",
      "url",
      "finance",
      "fx",
      "exchange-rate",
      "currency",
      "crypto",
      "web",
      "read",
      "markdown",
      "scrape",
      "extract"
    ]
  },
  "source": "agentic_market",
  "summary": ""
}

What the leaf hashes

{"body":"6ce32498f95f266f1ef83ac7bf1a5435c010b50fd51c8f6149bd42b8f4217c57","id":3046,"kind":"listing","method":"baseline/1","observed_us":1793025269062657,"prev":null,"subject":"agentic_market:offercheck-offercheck-workers-dev","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-10-26 (296695 rows).

1. 0x0a0b3e5681bb9f36b0d3e769ea7b2d65e229f1c2d446a9402964261146a91724
2. 0xfb1ebf3fa0585d106a37c3f49b8c45be1d3868ee875ab91a96d657e69cdbd132
3. 0xd3062c8ea18355b212b717b22ec1daedfc9f940e9d233f1c93847d217137398b
4. 0x64153b076b1593e33ecf9b34c7da7fcbd3c4c8cb796f53787feb70aea3daf15b
5. 0xddae414d9cecc1a0528cc98a02be6223b9af56ae65fafba4e846974fe7a11b66
6. 0xca61464c500fec1d3160da1d33b8f0862e990bfb0e7c8bc7d93b5b066d4a5c1b
7. 0xa97d11b0eca8d281f5139714590354cdcbb7c75389cb01c0a3e088ffd679abec
8. 0xff5d4504c47ff5da2c365af1a21d0a1e48f20fcbdb3a5be8701ddd45bf7765d3
9. 0xce10ce8c8cfd3b6929ed227e8d8819c4abc8e76b5b46af3b84b8d72e1c77f839
10. 0xb0bc31ab556762b7fe858f7c949edb2e4e31297933ff02d4987fcbda94b38b0f
11. 0x87b542db74671bce07a9c7ffa1bac70164f2e2ab234b807975c3d56a1d6139ee
12. 0x9e12233d6ee4faeb9271b0fc3c834797517d702f44add023149f28a0809c0aaa
13. 0xe5a836cf25a8dfc72c9e3b6a69a7561a1f61f50f9cf36707d36f6e926aa15dec
14. 0xa96bb9408ce00a0d40ddaba8736257dfce76d5478b131d69db1afdf8a824312b
15. 0x7ddc2fead128357f881b63e6c7c26d7fbbb84fca6c7c8e0bbfe386de86ca8d39
16. 0xc6a4d7899a0f442958e26505011190b7cff2483611c1b94eba9043e0ba9ac36e
17. 0x8c756542e482157df0c36464d75c937b845e4423dbbcfad08f0cf8d5a16b9a13
18. 0x20704208aa6923d6b2450ef74ede87a6e0265d46447926038fe9506e9e154b2d
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae