Evidence row 2201504

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://package-health.x402tookit.com/npm-downloads"
    ]
  ],
  "name": "Package Health",
  "owner_address": "0xb531320805c5bed1d46aeadcf4f008fdf172dbda",
  "raw": {
    "accepts": [
      {
        "amount": "20000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:8453",
        "payTo": "0xb531320805C5BED1D46AEaDcF4F008FDF172DBDa",
        "scheme": "exact"
      },
      {
        "amount": "20000",
        "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
        "extra": {
          "feePayer": "D6ZhtNQ5nT9ZnTHUbqXZsTx5MH2rPFiBBggX4hY1WePM",
          "transactionVersions": [
            0
          ]
        },
        "maxTimeoutSeconds": 300,
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "payTo": "DUPiupXtuox38dcGoXUKer5mAydCzmaHjrbQ66qeEm8s",
        "scheme": "exact"
      },
      {
        "amount": "20000",
        "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:137",
        "payTo": "0xb531320805C5BED1D46AEaDcF4F008FDF172DBDa",
        "scheme": "exact"
      },
      {
        "amount": "20000",
        "asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:42161",
        "payTo": "0xb531320805C5BED1D46AEaDcF4F008FDF172DBDa",
        "scheme": "exact"
      }
    ],
    "description": "npm package adoption: downloads last week and month, plus trend within the month and a popularity band.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "queryParams": {
              "name": "express"
            },
            "type": "http"
          },
          "output": {
            "example": {
              "asOf": "2026-10-11T03:34:59.702Z",
              "band": "VERY_POPULAR",
              "degraded": false,
              "disclaimer": "Screening signal computed from the named public source. Not financial, legal or investment advice; provided as is. Verify at the source before acting.",
              "lastMonth": 637720447,
              "lastWeek": 143244952,
              "name": "express",
              "notChecked": [
                "unique users",
                "dependents count",
                "…1 more"
              ],
              "reasons": [
                "Downloads include CI and mirrors, so they overstate human users; they still separate popular from unused packages."
              ],
              "source": "npm downloads API",
              "sourceUrl": "https://api.npmjs.org/downloads",
              "summary": "express: 143,244,952 downloads last week, 637,720,447 last month; second half of the month +10.5% vs the first.",
              "thresholds": {
                "lowWeekly": 50,
                "moderateWeekly": 1000,
                "popularWeekly": 50000,
                "veryPopularWeekly": 1000000
              },
              "trendWithinMonthPct": 10.5,
              "verdict": "VERY_POPULAR"
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "method": {
                  "enum": [
                    "GET"
                  ],
                  "type": "string"
                },
                "queryParams": {
                  "properties": {
                    "name": {
                      "description": "npm package name, e.g. express or @types/node",
                      "type": "string"
                    }
                  },
                  "required": [
                    "name"
                  ],
                  "type": "object"
                },
                "type": {
                  "const": "http",
                  "type": "string"
                }
              },
              "required": [
                "type",
                "method"
              ],
              "type": "object"
            },
            "output": {
              "properties": {
                "example": {
                  "properties": {
                    "asOf": {
                      "type": [
                        "null",
                        "string"
                      ]
                    },
                    "band": {
                      "type": [
                        "null",
                        "string"
                      ]
                    },
                    "degraded": {
                      "type": [
                        "boolean",
                        "null"
                      ]
                    },
                    "disclaimer": {
                      "type": [
                        "null",
                        "string"
                      ]
                    },
                    "lastMonth": {
                      "type": [
                        "null",
                        "number"
                      ]
                    },
                    "lastWeek": {
                      "type": [
                        "null",
                        "number"
                      ]
                    },
                    "name": {
                      "type": [
                        "null",
                        "string"
                      ]
                    },
                    "notChecked": {
                      "items": {
                        "type": "string"
                      },
                      "type": [
                        "array",
                        "null"
                      ]
                    },
                    "reasons": {
                      "items": {
                        "type": "string"
                      },
                      "type": [
                        "array",
                        "null"
                      ]
                    },
                    "source": {
                      "type": [
                        "null",
                        "string"
                      ]
                    },
                    "sourceUrl": {
                      "type": [
                        "null",
                        "string"
                      ]
                    },
                    "summary": {
                      "type": [
                        "null",
                        "string"
                      ]
                    },
                    "thresholds": {
                      "properties": {
                        "lowWeekly": {
                          "type": [
                            "null",
                            "number"
                          ]
                        },
                        "moderateWeekly": {
                          "type": [
                            "null",
                            "number"
                          ]
                        },
                        "popularWeekly": {
                          "type": [
                            "null",
                            "number"
                          ]
                        },
                        "veryPopularWeekly": {
                          "type": [
                            "null",
                            "number"
                          ]
                        }
                      },
                      "type": [
                        "null",
                        "object"
                      ]
                    },
                    "trendWithinMonthPct": {
                      "type": [
                        "null",
                        "number"
                      ]
                    },
                    "verdict": {
                      "type": [
                        "null",
                        "string"
                      ]
                    }
                  },
                  "type": "object"
                },
                "type": {
                  "type": "string"
                }
              },
              "required": [
                "type"
              ],
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      }
    },
    "lastUpdated": "2026-11-01T23:41:45.119Z",
    "quality": {
      "l30DaysTotalCalls": 2,
      "l30DaysUniquePayers": 2,
      "lastCalledAt": "2026-11-01T23:41:44.845Z"
    },
    "resource": "https://package-health.x402tookit.com/npm-downloads",
    "serviceName": "Package Health",
    "tags": [
      "npm",
      "downloads",
      "popularity"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "npm package adoption: downloads last week and month, plus trend within the month and a popularity band."
}

What the leaf hashes

{"body":"3c5d0c50de744e924c4eadbe1730463a089bc94e6c14fe51be9091f4e17d180a","id":2201504,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793646805754744,"prev":null,"subject":"x402_bazaar:https://package-health.x402tookit.com/npm-downloads","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-11-02 (444186 rows).

1. 0xb4a5e02704b716cd0decd0251b657177ad9fa28965dcb9a0e0d9e802c87c8b78
2. 0x87f3395d45b0e49ccfcea138ec646d0fd378784b01835e7725b2147d03664be5
3. 0x2d2cf1263233c9bf62b9488837b7a786b49c1354b5f2579490db08b39faa7124
4. 0x7e2ed7ad5ccbd55447e1760c94c7fe624f1647a34fd1ec0874d9c01431a51714
5. 0xf0cba42aa448dd8eb95eedd82b601e78d3468ce311436a1ecffb438975154528
6. 0xb90554b9b84dd963dce35c0215bd52c2b02fbda3e7b6d8a6f2290271d336a465
7. 0x8df58f141a62f0cfc8bdfc437cb52497882e017a6d945b7837284f4741e79ee0
8. 0x44508273bcbbf7540d6aa338dbc635389f4541541d7d2f1529b70edccf0cdff5
9. 0x7734280657d7dd556d7fb04188cc20344151c36d664045a9e6db354c164050f9
10. 0xa885ee95f751280fd19fba9daa1f939fd6d868e104b763e6bf14389725f4396c
11. 0xae3d752497e0b1117ec3e1c4e69aabf294556064d09c8f5a7ec60bea1e2919c0
12. 0x699ae7fef9e8b87b378f2b7f3c6ae482aa3f19000267f273752a19f30c704991
13. 0x8f3b097427a1bfae26e9231cb5b00552011a27ad93aa4c0d3e267190fcbbb962
14. 0x08da04eef748b7ac08271324db18913501d72c52afa240bf3f08b6da46e3b97f
15. 0x834b6b9a36b42da183e2542785e8d2d7548ace455268a81922edbe6020cef644
16. 0x2922573a524a0694086782ac45fa3083d3fc3f6a2a479b2105e1e2f06b2916f7
17. 0x07ad80c0c234ecea379a2f4450dfd0804db049dbc62abe77af6306049ca6b6c2
18. 0x98cbbf2c68ab4c0b4db782aeb88bea1f30b02178cf8b5d3d24a931d19492ea6d
19. 0x252cce55f1a3d5391c16f82d7f62494429a5f69b03486d4cfcfb7b2c96d6c884

Day root

0x78fecaabbe319e56f5c4b80fc02e2052e198ad24781da8832a475ff65f2002d1

Chained

0xdc35957db5d1371ca382b9152878ffece28ec7c5cb4f98fd71ddb367f8b999b2

Published

On Arc Testnet, block 70432815: 0x56b814612eb2e3e544153df3e91e1f7199106d1e430c7d8c6b653feeb9ebe9af