Evidence row 1792084

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://pay.brianbooms.com/api/v1/data/spaceflight-news"
    ]
  ],
  "name": "Steward",
  "owner_address": "0xa98e8c6cbc64b7bb30fd0d2015ab24814c661839",
  "raw": {
    "accepts": [
      {
        "amount": "10000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:8453",
        "payTo": "0xa98e8c6cbc64b7bb30fd0d2015ab24814c661839",
        "scheme": "exact"
      },
      {
        "amount": "11970",
        "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:137",
        "payTo": "0xa98e8c6cbc64b7bb30fd0d2015ab24814c661839",
        "scheme": "exact"
      },
      {
        "amount": "11970",
        "asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:42161",
        "payTo": "0xa98e8c6cbc64b7bb30fd0d2015ab24814c661839",
        "scheme": "exact"
      },
      {
        "amount": "11970",
        "asset": "0xB97EF9Ef8734C71904D8002F8b6Bc66Dd9c48a6E",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:43114",
        "payTo": "0xa98e8c6cbc64b7bb30fd0d2015ab24814c661839",
        "scheme": "exact"
      }
    ],
    "description": "Use when an agent needs current spaceflight news — slimmed article summaries (title, source, publish time, excerpt) from TheSpaceDevs Spaceflight News API. Search by keyword, restrict to one news site, or filter by publish date. Use permitted: build it into your products and services, paid or free. Raw redistribution of the feed itself is prohibited.",
    "extensions": {
      "bazaar": {
        "discoverable": true,
        "iconUrl": "https://brianbooms.com/favicon.ico",
        "info": {
          "input": {
            "method": "GET",
            "queryParams": {
              "limit": "Max articles, 1-20. Default 5.",
              "news_site": "Restrict to one source. Example: SpaceNews",
              "published_at_gte": "Only articles published on/after YYYY-MM-DD. Example: 2026-10-01",
              "search": "Keyword search. Example: Starship"
            },
            "type": "http"
          },
          "output": {
            "example": {
              "articles": [
                {
                  "news_site": "SpaceNews",
                  "published_at": "2026-10-01T14:03:00Z",
                  "title": "Starship completes static fire"
                }
              ],
              "count": 1,
              "data_source": "TheSpaceDevs Spaceflight News API",
              "product": "Spaceflight news"
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "additionalProperties": true,
          "properties": {
            "limit": {
              "description": "Max articles, 1-20. Default 5.",
              "type": "string"
            },
            "news_site": {
              "description": "Restrict to one source. Example: SpaceNews",
              "type": "string"
            },
            "published_at_gte": {
              "description": "Only articles published on/after YYYY-MM-DD. Example: 2026-10-01",
              "type": "string"
            },
            "search": {
              "description": "Keyword search. Example: Starship",
              "type": "string"
            }
          },
          "type": "object"
        },
        "serviceName": "Steward",
        "tags": [
          "spaceflight",
          "news",
          "steward",
          "x402"
        ]
      }
    },
    "lastUpdated": "2026-11-01T15:59:42.598Z",
    "quality": {
      "l30DaysTotalCalls": 2,
      "l30DaysUniquePayers": 2,
      "lastCalledAt": "2026-11-01T15:59:41.897Z"
    },
    "resource": "https://pay.brianbooms.com/api/v1/data/spaceflight-news",
    "serviceName": "Steward",
    "tags": [
      "spaceflight",
      "news",
      "steward",
      "x402"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Use when an agent needs current spaceflight news — slimmed article summaries (title, source, publish time, excerpt) from TheSpaceDevs Spaceflight News API. Search by keyword, restrict to one news site, or filter by publish date. Use permitted: build it into your products and services, paid or free. Raw redistribution of the feed itself is prohibited."
}

What the leaf hashes

{"body":"e39d7412e337754c7be45844b4f7202c1b6d52cda505fec4745cc00a27787217","id":1792084,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793560007628986,"prev":null,"subject":"x402_bazaar:https://pay.brianbooms.com/api/v1/data/spaceflight-news","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-11-01 (302406 rows).

1. 0xd0d31c93259abe27875cfd49a1de4efce69248d808cb497ab748d4da532c2cdd
2. 0x765ee4dd1da8477f6fde99d29de67b4305b73d1668d95c525ce68bd36ac6200f
3. 0x1854239f1ddc7121c32ea74e5e9f261941c59bdccbb0d83d08b3a38d4bc5b05b
4. 0xb27f03d8a2c458049f6669e96d013b0b20e38cdd643df36a1b8e2d5612dabe98
5. 0x94bb3d7fa92e377391a5b0f166ae72c81d08b572e743f13ae77cc1fb9234eea4
6. 0x1a3ce9e220efdd35ed2b1d9315fc9db3a5288ead39309e4988469304e8f7a63d
7. 0xcb0e559cb9868c2a730c2ac1a5d719fcea2e90b08a6d2a79e062178dce4a894c
8. 0xd734e4f1cbfe3a63214c0dfa7db252ea15b23d88e8ec0cc44bf22ecb5705ba14
9. 0x22ddc9d7ffd6b5772d851b12d9ff889f32066a27179c4da8a358a033998e4a0b
10. 0x4db5e21b0052dc1177ab606db9d83cf269343912cd8512f358735bba77da6b2b
11. 0x9068af017c80bba828d931e583d86ff9a847bc48db3947583079ff95c79f6da6
12. 0x0032986be0486517c7f89f9578ee463311586d03dc0068111a40585b1de3cbab
13. 0x3050daa45d874dca785f324e89aca8fa3ef2f8a889ac7ef7a4ed23bd6db53a62
14. 0x57b5e8b79f831258fde2efa4c7b70cd486ce34b32e7d612a6965c086ed7a75e8
15. 0xd3f5c237675f14686b3a3c2715c6735a96952155107d7b2cb9a44c56420170bd
16. 0xfc183bee85dc11a067fb710c6eb88824b94a516ddbdf2717b839e672a2206a7e
17. 0xb5916fb7a3e87dc0702e46eeadcd22652e2e1e755f8d429cc7a14a67a350b51b
18. 0x6142ac48fda269c17791c79da99c2456ac6acfe98268f4d168a404fd6040c703
19. 0x3315fd2757fdd435852cc277377234a3f3909a6d2a089d0e36f6d59aacfda910

Day root

0x7fa2cba1cf3d6b35630896f5fe1a650adb307ea2c376e80a5f2d9276b7cb5ab3

Chained

0x577ff89ba012beeff3197bcff7fa86752074bdf54205a24359cc437be2a952a4

Published

On Arc Testnet, block 70262758: 0x435bc1b9331471d72e1998f2e420983b5189d4da65ffbd6f27ef40daf5e1ea90