Evidence row 74281

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://draconic21-x402-api.onrender.com/v1/briefing_pack"
    ]
  ],
  "name": "d21 briefing_pack",
  "owner_address": "0x1520ef5530aa71350049be2903cf078b38c40ae5",
  "raw": {
    "accepts": [
      {
        "amount": "250000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:8453",
        "payTo": "0x1520Ef5530AA71350049BE2903Cf078B38c40AE5",
        "scheme": "exact"
      },
      {
        "amount": "250000",
        "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
        "extra": {
          "feePayer": "BFK9TLC3edb13K6v4YyH3DwPb5DSUpkWvb7XnqCL9b4F"
        },
        "maxTimeoutSeconds": 300,
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "payTo": "6mc4GhWFyNcMh7gAVDWrKeYjDqFtEKWKQuZ9RTw2VkfM",
        "scheme": "exact"
      }
    ],
    "description": "Supporting dataset: Agent Economy Briefing Pack compiled from Signal archive. Secondary to signal_latest/history/delta.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {},
            "bodyType": "json",
            "method": "POST",
            "type": "http"
          },
          "output": {
            "example": {
              "brand": "draconic21",
              "ok": true,
              "product": "briefing_pack"
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "body": {
                  "additionalProperties": true,
                  "properties": {},
                  "required": [],
                  "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": {
                  "properties": {
                    "brand": {
                      "type": "string"
                    },
                    "ok": {
                      "type": "boolean"
                    },
                    "product": {
                      "type": "string"
                    }
                  },
                  "type": "object"
                },
                "type": {
                  "type": "string"
                }
              },
              "required": [
                "type"
              ],
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      }
    },
    "lastUpdated": "2026-10-08T19:54:39.085Z",
    "quality": {
      "l30DaysTotalCalls": 2,
      "l30DaysUniquePayers": 2,
      "lastCalledAt": "2026-10-08T19:54:38.905Z"
    },
    "resource": "https://draconic21-x402-api.onrender.com/v1/briefing_pack",
    "serviceName": "d21 briefing_pack",
    "tags": [
      "agent-economy",
      "research-bundle",
      "briefing",
      "dataset",
      "market-intelligence"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Supporting dataset: Agent Economy Briefing Pack compiled from Signal archive. Secondary to signal_latest/history/delta."
}

What the leaf hashes

{"body":"0f38462d38051015d1105b5b9ec00adb0b5b99ab115c5002c3bc8c9b349836e3","id":74281,"kind":"listing","method":"baseline/1","observed_us":1793025488707298,"prev":null,"subject":"x402_bazaar:https://draconic21-x402-api.onrender.com/v1/briefing_pack","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. 0xeca436069a1d6a052345b3463dcf971f7fc1448dfb132ec009c3ac79961687c5
2. 0x2be9628d8a6e2e5dce38e46320db9f9b9c44096add7204139259e397ab4fab36
3. 0xd90dc128fc142f536e9f190b5facc02240d48e3cf0f0de750f45c5cf5bae4311
4. 0x4067c407bcb6a70e288aa688516425f5e48d075df4647503af04146d5306eadf
5. 0x20baf422600ae8c7414f7e43950503c4f593f8cd6493bfa3e7c5230b3277a463
6. 0x3f5dae8fc777e7cde81aaff85f5ce5d66d9e2fef2d11cf8e08fde0ee4e580b77
7. 0x4f11a898079523886d0b5cb7e1783dba47eddb53c7db63782c4564bfe14f6061
8. 0xe06403612872bc74e44bbec7552a495ac647a6907f7667d69b0cfae6265dcc1c
9. 0x6fcb07a579951913045f28631e521704a8c1446a794b8829c6567055bdd388bf
10. 0xbd0fe1f0b167ff665b9719ad8dc002f05cde40b88825cbbc513241eb8e47063c
11. 0x94e3a06f6e015a8e8a8a7e2c73991edf3f9ceb9ff83b85412d31c39f3e9bc8c1
12. 0x4bac6365a3676c613d57c80f4d4f617e583205074db24f3dec4d2ed4939a26e6
13. 0xec98ca25cb12ffed7c3e1373971719ce414ee6deecd1e7724b2979e2c356d99f
14. 0x614d844c9e0509d9f9e63697aa2935555bce5f13695a8dc0047aa9e9898d70b3
15. 0x95657a7d540ed6cac0bde9995782333b2562a9a6641853269ac95148827410f0
16. 0x5fb5dda563336cd1bc1b9f44c52b76237ae72ed2145cb9290f39f304ca7dd678
17. 0x74a0a08e4e7ab9aa5bfbead33dec7e1c7e8e364cff69a63720d764bbe987aadc

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae