Evidence row 555616

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://tabularium.matt-3e0.workers.dev/snapshot/fetch"
    ]
  ],
  "name": "Tabularium Snapshot",
  "owner_address": "0x951bd91ad61d2d867f21b54d2f717d8fff4ad28a",
  "raw": {
    "accepts": [
      {
        "amount": "5000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 60,
        "network": "eip155:8453",
        "payTo": "0x951BD91AD61d2D867F21b54D2f717D8FFF4aD28a",
        "scheme": "exact"
      }
    ],
    "description": "Returns the page's readable text plus an Ed25519-signed record (final URL after redirects, fetch time, status, sha256 of the body and of the text) that verifies offline. Charged only for 2xx text pages; refused URLs cost nothing.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "url": "https://example.com/"
            },
            "bodyType": "json",
            "method": "POST",
            "type": "http"
          },
          "output": {
            "example": {
              "ok": true,
              "sig": "<base64 Ed25519 signature>",
              "snapshot": {
                "bytes": 1256,
                "contentType": "text/html; charset=UTF-8",
                "fetchedAt": 1790000000000,
                "finalUrl": "https://example.com/",
                "sha256": "<sha256 hex of the raw body>",
                "status": 200,
                "textChars": 180,
                "textSha256": "<sha256 hex of text>",
                "title": "Example Domain",
                "truncated": false,
                "url": "https://example.com/",
                "v": 1,
                "wallet": "0x..."
              },
              "text": "# Example Domain\n\nThis domain is for use in documentation examples..."
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "body": {
                  "properties": {
                    "max_chars": {
                      "description": "Most characters of text to return (default 50000); the signature covers exactly what is returned",
                      "maximum": 200000,
                      "minimum": 1000,
                      "type": "integer"
                    },
                    "url": {
                      "description": "Public http(s) page to fetch",
                      "maxLength": 2048,
                      "pattern": "^https?://",
                      "type": "string"
                    }
                  },
                  "required": [
                    "url"
                  ],
                  "type": "object"
                },
                "bodyType": {
                  "enum": [
                    "json",
                    "form-data",
                    "text"
                  ],
                  "type": "string"
                },
                "method": {
                  "enum": [
                    "POST"
                  ],
                  "type": "string"
                },
                "type": {
                  "const": "http",
                  "type": "string"
                }
              },
              "required": [
                "type",
                "method",
                "bodyType",
                "body"
              ],
              "type": "object"
            },
            "output": {
              "properties": {
                "example": {
                  "type": "object"
                },
                "type": {
                  "type": "string"
                }
              },
              "required": [
                "type"
              ],
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      }
    },
    "lastUpdated": "2026-10-27T20:18:21.141Z",
    "quality": {
      "lastCalledAt": "2026-10-27T20:18:21.141Z"
    },
    "resource": "https://tabularium.matt-3e0.workers.dev/snapshot/fetch",
    "serviceName": "Tabularium Snapshot",
    "tags": [
      "web-fetch",
      "scraping",
      "verifiable",
      "signed",
      "citations"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Returns the page's readable text plus an Ed25519-signed record (final URL after redirects, fetch time, status, sha256 of the body and of the text) that verifies offline. Charged only for 2xx text pages; refused URLs cost nothing."
}

What the leaf hashes

{"body":"b45b65a02f3c3020ffe659a9db079845fc0f317c406e7d9d3f6fecaadfe2a9d7","id":555616,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793133800911412,"prev":null,"subject":"x402_bazaar:https://tabularium.matt-3e0.workers.dev/snapshot/fetch","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-10-27 (273461 rows).

1. 0x08b2df1144b9599f577c70769e1dd8a63f33106486338a2eb576843dbac840cb
2. 0x55261402f8dc0787dd927ba2c950e05c4c98f4f1e715ee0ee07f49eaf8b0ab2d
3. 0x0b9daaccb94532d385d2ee69ddc8ccc79896c5783f47e4091fc26f32ae174c33
4. 0x20bcbe7ca7e6f6e221c122340749564b80ded86d27f246bfb736ded55f9655b7
5. 0x0e4aebf86517fb728987b82d6f0b3615a0901603bf044e3a26902772c670bc03
6. 0x82cc7d0d43737cc1e022fa771afe0745bb3f0c6e59a6abba8868390d8f5b17c7
7. 0x33c1cb2e0446d8c25a5f178556dc487022bb73d4e923ec97228ce2f9b98a0c51
8. 0x1cdfdd976b4f4ae6d4c55fbc134642c46bec83bfded3b3e9b5cb72ae6691b512
9. 0x6efb43516c0ac6ecdc2a00f417064dcd3e762f3348c81e6186bdfc79ee1ea248
10. 0x03a267c1d5dd59638952aa8136811d4a60156d91df81c76225e7c18da2c0d981
11. 0x9ae71f62703c0a9df6ffd13f49569896ffbb72240a66e3d44cdbfbe65f98ac1c
12. 0x032ecda033bf8a986e559148b1dda067c67bf4dee01f0000782b450c72286406
13. 0x74ffd6144e8464591ea30392b981f197426cfd361178829fb8a66915e2f727b0
14. 0x3e0ec8a2a8a954695a9b53a4a48a7656d7e3fd6a8795c73b49e2ef05b201ec3f
15. 0x2cf27e8a181d60d0dd27c186c2eddfcbb4e8fa71cf66feeb55a4d730e15ee8c4
16. 0x518b93854db03dc9fc938883abf30da6eaae5ae0d4336903968fd32a7df8c71b
17. 0x22c1fb9487ee0b9732fa017a0cc321eb27a60c08450d112f755089796e12cb1c
18. 0xa20d48798a34aba12eb9c7297722982d910f06c148f5e27ac59307422964a585
19. 0x9fc354c0ea3efc3f1b6548bb77ea902a50f2c9647647ea61592efce2bd795699

Day root

0xdd77e5e99da32c3f154180d63e3c3e6fe11e896a2c6896412ef6b5c4bcf7e795

Chained

0x23bb4dfd09f55c15ac3962f53578e02c6114d5bfd9bb451cf8794fb6e2817ef4

Published

On Arc Testnet, block 69414147: 0xb2ebd83aafeb765a0ce66e76aefb133ed06606c98038fd56191e2bcd1dcb77b4