Evidence row 73397

Observed 26 Oct 2026, 14:38 UTC, by baseline/1.

Kind: listing
About: source_record x402_bazaar:https://dep.halowerk.com/v1/maintainer-concentration
Recorded: 26 Oct 2026, 14:38 UTC
Previous row: None: the first of its kind about this subject
Body SHA-256: 88c2e8a473afc74efc82edcc3d92c453c7f7177ff2b7f3d695cb7acf03a77914
Leaf: 0xda4fad0a701245fadd1bc48eb6de1b166908f7d20a0df9c68e69b5c440b88091

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://dep.halowerk.com/v1/maintainer-concentration"
    ]
  ],
  "name": "dep.halowerk.com/v1/maintainer-concentration",
  "owner_address": "0x2880edfff13100677bf97a3cbdf3bc34771c4e5e",
  "raw": {
    "accepts": [
      {
        "amount": "4000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "currency": "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",
        "recipient": "0x2880EdfFF13100677Bf97A3CBdF3Bc34771C4E5E",
        "scheme": "exact"
      }
    ],
    "description": "Measures the share held by the largest maintainer from supplied ownership weights. Missing facts are returned as null and named in unavailable_fields where applicable. Derived values disclose their method; source-backed values disclose source, time window and age. ",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "maintainers": [
                {
                  "name": "a",
                  "weight": 8
                },
                {
                  "name": "b",
                  "weight": 2
                }
              ]
            },
            "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": {
                    "maintainers": {
                      "items": {
                        "additionalProperties": false,
                        "properties": {
                          "name": {
                            "description": "",
                            "maxLength": 512,
                            "minLength": 1,
                            "type": "string"
                          },
                          "weight": {
                            "description": "",
                            "maximum": 1000000000000,
                            "minimum": 0,
                            "type": "number"
                          }
                        },
                        "required": [
                          "name",
                          "weight"
                        ],
                        "type": "object"
                      },
                      "maxItems": 10000,
                      "minItems": 1,
                      "type": "array"
                    }
                  },
                  "required": [
                    "maintainers"
                  ],
                  "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": "2026-10-06T13:58:23.175Z",
    "quality": {
      "l30DaysTotalCalls": 2,
      "l30DaysUniquePayers": 2,
      "lastCalledAt": "2026-10-06T13:58:22.745Z"
    },
    "resource": "https://dep.halowerk.com/v1/maintainer-concentration",
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Measures the share held by the largest maintainer from supplied ownership weights. Missing facts are returned as null and named in unavailable_fields where applicable. Derived values disclose their method; source-backed values disclose source, time window and age."
}

What the leaf hashes

{"body":"88c2e8a473afc74efc82edcc3d92c453c7f7177ff2b7f3d695cb7acf03a77914","id":73397,"kind":"listing","method":"baseline/1","observed_us":1793025487573426,"prev":null,"subject":"x402_bazaar:https://dep.halowerk.com/v1/maintainer-concentration","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).
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Day root: 0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8
Chained: 0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a
Published: On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae

How to check it · This row as JSON