Evidence row 3967231

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": 2,
      "l30DaysUniquePayers": 2,
      "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":"4d2092afdadde7c0f1a9d757c8c70959bf7f54c5d85e1e817cffdef4dda3d36b","id":3967231,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1794083406347137,"prev":785248,"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 2026-11-07 (195826 rows).

1. 0x3e5d28a94d444b98227b14c7d70fcba24ef1ecd7fd1a1999122435317b6dfb69
2. 0x2f40c5180382cc56ec717839a231b17789e9a7bda24086456f62256a5e5ce14d
3. 0xc9b72fb1d6e9f1897db177d46ce0db6c33ebc020962d8809bd9fa56ba4752eeb
4. 0x61a91818e65bb898bd42fafc0b71bfcdcc140b8fd64f2ec71f8d3c2c4e58b367
5. 0x3334ce37f7dbfa7e7fdab425a7360b3b456e5769065252e415688e22f75e6e18
6. 0x56bafe701439c57c0e1f9a5c1ea0bddb0033390235f612b1b44a696caf2b9e37
7. 0x87da6dfab2da8a189b2fcea5367199c90097d7cfa81be2616e8e231da2a46dd2
8. 0x358e4bc89d3a3718029d97efc3ffe704bfa0654e4f0efe4e88110594bb3dd7ab
9. 0xcd9408604c95641f91b3ca6a1c35cbd270ededadad0f373d5ea82ad22e75a8d3
10. 0xc7171246cd1239a57ee729f3e54012efe920b545e40c44566a73a31a633bccbe
11. 0x1d863bd8796c1c1dc7e8001a52e1fd2a546e615dd5e13ca31ef80a3bb276cf08
12. 0x65fc922d0b91781f23bddd8b4a42519f2ec42aa86118bd94ccdd851356893820
13. 0xa5a96e20a466cfec764384073f0fea792307c8ff464b459bce5b293e61ff85a4
14. 0xb96cde31376f2620034d37eacb768d6239f6799d719ac01516ef133c0df4dda5
15. 0xa3ca92229f3aac0e9b561aaa066ca1907adc3f0b1685587fa30369d41cf66004
16. 0xf0a56561418cd0342a328707933cc222d8fa725efff7ffd081e0226ee8c46c0b
17. 0x54292a94f447f1fd33c01b5c99da465043f11022958626a2ea562c457fef697a
18. 0xff23fa8a9de3f957315ef0dfe7e8d8f6b1a51dae05fef7615c59794e019ff05c

Day root

0x17da9e85e1b138541355d33543ff34e3503cd3a49d37728fb53643e2a0416a2d

Chained

0xed34bd4af17282643de8cb9591c84d0aa1b39e1e9ae9864941e543f5a15718cb

Published

On Arc Testnet, block 71280839: 0xc3f6784179e0ca32236ba89472473e882a81d03fcc5ce27ca58ded2e01e112aa