Evidence row 117317

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://natur.halowerk.com/v1/biodiversity-density"
    ]
  ],
  "name": "natur.halowerk.com/v1/biodiversity-density",
  "owner_address": "0x2880edfff13100677bf97a3cbdf3bc34771c4e5e",
  "raw": {
    "accepts": [
      {
        "amount": "6000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "asset": "USDC",
          "assetTransferMethod": "eip3009",
          "eip712Domain": {
            "chainId": 8453,
            "name": "USD Coin",
            "verifyingContract": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
            "version": "2"
          },
          "name": "USD Coin",
          "network_name": "Base Mainnet",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:8453",
        "payTo": "0x2880EdfFF13100677Bf97A3CBdF3Bc34771C4E5E",
        "scheme": "exact"
      }
    ],
    "description": "Assesses the recorded biodiversity of an area around a point: how many distinct species appear, how many records support them, how recent those records are, how many separate datasets contributed, and the breakdown by kingdom. The trap this service is built around is that record density measures observers, not organisms — a city park with heavy footfall carries more records than a roadless reserve and is not thereby richer.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "lat": 52.52,
              "lon": 13.405,
              "radius_km": 10,
              "years_back": 20
            },
            "bodyType": "json",
            "method": "POST",
            "type": "http"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "body": {
                  "additionalProperties": false,
                  "properties": {
                    "kingdom": {
                      "description": "Restrict to one kingdom, e.g. Animalia, Plantae, Fungi.",
                      "maxLength": 40,
                      "type": "string"
                    },
                    "lat": {
                      "maximum": 90,
                      "minimum": -90,
                      "type": "number"
                    },
                    "lon": {
                      "maximum": 180,
                      "minimum": -180,
                      "type": "number"
                    },
                    "radius_km": {
                      "default": 10,
                      "maximum": 100,
                      "minimum": 1,
                      "type": "number"
                    },
                    "years_back": {
                      "default": 20,
                      "maximum": 100,
                      "minimum": 1,
                      "type": "integer"
                    }
                  },
                  "required": [
                    "lat",
                    "lon"
                  ],
                  "type": "object"
                },
                "bodyType": {
                  "enum": [
                    "json",
                    "form-data",
                    "text"
                  ],
                  "type": "string"
                },
                "method": {
                  "enum": [
                    "POST",
                    "PUT",
                    "PATCH"
                  ],
                  "type": "string"
                },
                "type": {
                  "const": "http",
                  "type": "string"
                }
              },
              "required": [
                "type",
                "method",
                "bodyType",
                "body"
              ],
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      }
    },
    "lastUpdated": "2026-10-08T05:40:41.253Z",
    "quality": {
      "l30DaysTotalCalls": 2,
      "l30DaysUniquePayers": 2,
      "lastCalledAt": "2026-10-08T05:40:40.816Z"
    },
    "resource": "https://natur.halowerk.com/v1/biodiversity-density",
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Assesses the recorded biodiversity of an area around a point: how many distinct species appear, how many records support them, how recent those records are, how many separate datasets contributed, and the breakdown by kingdom. The trap this service is built around is that record density measures observers, not organisms — a city park with heavy footfall carries more records than a roadless reserve and is not thereby richer."
}

What the leaf hashes

{"body":"6ee96d792480ec2f4582455e7b970dc517d6591cc810614b29ab90ae3e935507","id":117317,"kind":"listing","method":"baseline/1","observed_us":1793025611000972,"prev":null,"subject":"x402_bazaar:https://natur.halowerk.com/v1/biodiversity-density","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. 0x8c9946aee103acb14c30b9596d335e27cc68529a649ba28d46c57a722ce22935
2. 0x8389eda585f3d2a934bc7911c3c95c89e1a979b5562023cf3fc5b241ab513d7b
3. 0x35ea1af228104f850ffa9c7d60273f77242c00f7ef22ae88d827b4cfd9df7089
4. 0xfb5d57849c3e7f678524b8df7e1be51533ec7842abc4d458edce317c6eebc6c0
5. 0x724a3e9e2ae4f157591896c1dc000f11cc3ec70b8c5beaa66ed20a102c7e1271
6. 0x45a55060c005a16352fbabfcd8b802b87285c235c922aad1da80529c42654e11
7. 0x310b2532653d4d1bbdb8986b3f10ce2c6f8f28c89d9c48364ba9131ce0d9630d
8. 0x44dcd8c2e45bd3758753c2308314c3b0ce55b1a719895d828bb23148f2ab81c8
9. 0x0beb9cab91ea16591bb42106a5eb202ecfb87c67075ee3c8a067eea1f93c4e9c
10. 0x8b2110c771e54d98456ae5dfad5a23a7974780c363c2fa58a2fcb3729da25836
11. 0x86b2c30da5bda0b772dc691263cbbe9779ec35b67c9966d10e728daa3e47ae48
12. 0xfc86b2282cb8f91e68280efe01f3c50453c94fae2ef04af1a75d4b05d0af2b8f
13. 0xd5ec7ffaecac790d8adfa0620b0a5494758f862e3090b49e556a6ecbad2f0782
14. 0x78ac2b34737774659a6a411f4d10b8ba570d40699d9f277321c3a32ff03d1dc9
15. 0x7eb603d37f0f22dae1ea013e391889906ffc0139ff26e25b044bee38eec8f9b2
16. 0x2b6e23e3624a1b66e1d2298cfbce99a93ce6b13d24a58112a71802d79c5f7a76
17. 0xd21942ae3214eff88e08ab04884fd4b11958b51af9a0741b7668e2d07a2c56c9
18. 0x9a9024edb5069d88a324facb310a5ce8e495214bbaa968f077bede437390194f
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae