Evidence row 750777

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://api.xynaptic.io/v1/news-us"
    ]
  ],
  "name": "Xynaptic news-us",
  "owner_address": "0x4ff893df9ab8603d5460fbbaee0d9b8c0fa4d5e9",
  "raw": {
    "accepts": [
      {
        "amount": "10000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 60,
        "network": "eip155:8453",
        "payTo": "0x4ff893dF9aB8603d5460FbbAeE0D9B8c0fa4D5e9",
        "scheme": "exact"
      },
      {
        "amount": "10000",
        "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
        "extra": {
          "feePayer": "D6ZhtNQ5nT9ZnTHUbqXZsTx5MH2rPFiBBggX4hY1WePM",
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 60,
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "payTo": "Aq6J1zBhga9n6LSAWkosHbYUy3Bp1vC4Z42zZq4iFfed",
        "scheme": "exact"
      },
      {
        "amount": "10000",
        "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 60,
        "network": "eip155:137",
        "payTo": "0x3E39934989D579F5821eED7Ba6A84B72f682F2C6",
        "scheme": "exact"
      }
    ],
    "description": "Xynaptic US News v2 — structured events from the United States (last 3h): importance, lifecycle, entities, sectors, multi-source verification, agent-ready actions. Refreshed every 2 hours.",
    "extensions": {
      "bazaar": {
        "info": {
          "description": "Xynaptic US News v2 — structured events from the United States (last 3h): importance, lifecycle, entities, sectors, multi-source verification, agent-ready actions. Refreshed every 2 hours.",
          "input": {
            "method": "GET",
            "queryParams": {},
            "type": "http"
          },
          "name": "Xynaptic news-us",
          "output": {
            "example": {
              "generated_at": "...",
              "items": [
                {
                  "headline": "...",
                  "source": "...",
                  "topic": "US"
                }
              ],
              "refresh": "every 2 hours",
              "service": "news-us"
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "method": {
                  "enum": [
                    "GET",
                    "HEAD",
                    "DELETE"
                  ],
                  "type": "string"
                },
                "queryParams": {
                  "additionalProperties": {
                    "type": "string"
                  },
                  "type": "object"
                },
                "type": {
                  "const": "http",
                  "type": "string"
                }
              },
              "required": [
                "type",
                "method"
              ],
              "type": "object"
            },
            "output": {
              "properties": {
                "example": {
                  "type": "object"
                },
                "type": {
                  "type": "string"
                }
              },
              "required": [
                "type"
              ],
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      }
    },
    "iconUrl": "https://res.cloudinary.com/bdb-prod/image/upload/c_fill,ar_1:1,w_256,h_256,f_auto,q_auto/v1792405136/bazaar-icons/a5cf9ed06bec5d79.png",
    "lastUpdated": "2026-10-19T12:18:44.832Z",
    "quality": {
      "l30DaysTotalCalls": 4,
      "l30DaysUniquePayers": 3,
      "lastCalledAt": "2026-10-19T12:18:43.879Z"
    },
    "resource": "https://api.xynaptic.io/v1/news-us",
    "serviceName": "Xynaptic news-us",
    "tags": [
      "news",
      "media",
      "events",
      "monitoring"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Xynaptic US News v2 — structured events from the United States (last 3h): importance, lifecycle, entities, sectors, multi-source verification, agent-ready actions. Refreshed every 2 hours."
}

What the leaf hashes

{"body":"ec227cc6c0c075daa4cf1ccec8737daad0e703b21c88770639a9427f344e3fa7","id":750777,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793178694186458,"prev":70765,"subject":"x402_bazaar:https://api.xynaptic.io/v1/news-us","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-10-28 (231336 rows).

1. 0x7dd0a8782d72ad8efff517c234f4bac1e10f6502645159ebab63f0c138a19f37
2. 0xeba38fe4b402d323d8d7dfcd8b560060f6968bb526b653a1800743a3f1bec8ee
3. 0x6b409d32878af56dcc49d494c4c71ef7e99c9b6015b4732625fc30e94f8127c8
4. 0xfab02cfc58b11f15b77bed85d7b25c42f5246d40898cb2a77699ccf27b4ebef7
5. 0x1d8b12da2d1e3819e8c00dc1c38983895518f73902907c9655399cfa7ed47d04
6. 0x9fd5f1a10a5a7d9c7f63ec80e4e57b4ea17cefa611ec5af076f046520556b9fe
7. 0xcd229f6fe758e76e7b8cbae5ca22cb9d46c30000629c756f16f433bc46e2c873
8. 0x7fef4e4013ade2708d9ef628b9f606a8d331b43da26f51b0b3821f4610ba1c75
9. 0xac773215ffb9222c45504eb5cc07859a1ef1f33af4fad0881e0a2c6cfd4851cb
10. 0xc61f70692adae80548acc5ac161a641931990ca1c95848a6d4ecb3cd819aa224
11. 0x0736048f82aec2b6271d333dcc2e3d6b83d61035358a6f0ae67b8db47875194c
12. 0xf1d12da4d227242f97d9bc58d06140106dee16d6d541ebe113d7c7f6ab2d8b67
13. 0xf042be8757f2f3ef070e717e38a7b0ad951d74298e721ac0b2e7855db790e392
14. 0x40581185279a8bf075dca3a4c3a5648ec6f62098ba7402cbc097d5cc707e0840
15. 0xab4e84d781dccd579dcf5c47a356a4a2e6cac58a2aefdf3543a3fa15238fa4db
16. 0x74cf00e07b52415c2184cf20be69d195ed2725497a6892c2f3e449497c17d0ec
17. 0x7a743a0a09057bae687051274e1d45bf973bd36a1a4ba16a191b5d29e3bdfa2a
18. 0xe027395fafb7fc41921c42ca0542524ea22204cbd5908b70b27f3d5fb26f5d0f

Day root

0x2c19037464cc4c493624565f01775d6446fc78eaa118fc6865bfe2bfca9ff78e

Chained

0xd1d7dee8322ceff8f4c8d83aa1fe4a4466825c2af1c97dbde3d35db61234f7be

Published

On Arc Testnet, block 69584042: 0x8bae2b1d097834c8b458513862d70d29ee807e98dc2e863b27250131c15b35ae