Evidence row 1784792

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://unit.openverbs.com/v1/convert"
    ],
    [
      "x402",
      "https://unit.openverbs.com/v1/list"
    ]
  ],
  "name": "unit.openverbs.com",
  "owner_address": null,
  "raw": {
    "caip2_networks": [
      "eip155:8453"
    ],
    "category": "",
    "description": "",
    "domain": "unit.openverbs.com",
    "endpoints": [
      {
        "description": "Convert a value between units — length, mass, volume, temperature, area, speed, pressure, energy, power, digital storage, time, angle, frequency and more. Unknown units or a conversion between incompatible measures (e.g. kg → km) are rejected as a clean 400.",
        "method": "POST",
        "parameters": [
          {
            "default": null,
            "description": "",
            "enumValues": [],
            "example": "km",
            "group": "body",
            "name": "from",
            "required": false,
            "type": "string"
          },
          {
            "default": null,
            "description": "",
            "enumValues": [],
            "example": "mi",
            "group": "body",
            "name": "to",
            "required": false,
            "type": "string"
          },
          {
            "default": null,
            "description": "",
            "enumValues": [],
            "example": 5,
            "group": "body",
            "name": "value",
            "required": false,
            "type": "number"
          }
        ],
        "pricing": {
          "amount": "0.002",
          "currency": "USDC",
          "maxAmount": "",
          "minAmount": "",
          "network": "eip155:8453",
          "scheme": "exact"
        },
        "providerName": "",
        "quality": {
          "l30DaysTotalCalls": "2",
          "l30DaysUniquePayers": "2"
        },
        "serviceName": "Convert units",
        "tags": [
          "convert units",
          "unit conversion api",
          "kilometers to miles",
          "celsius to fahrenheit",
          "kg to pounds"
        ],
        "url": "https://unit.openverbs.com/v1/convert"
      },
      {
        "description": "List the supported units and their metadata (abbreviation, measure, system, singular/plural names), optionally filtered to a single measure — a discovery endpoint for choosing valid `from`/`to` values.",
        "method": "POST",
        "parameters": [
          {
            "default": null,
            "description": "",
            "enumValues": [],
            "example": "length",
            "group": "body",
            "name": "measure",
            "required": false,
            "type": "string"
          }
        ],
        "pricing": {
          "amount": "0.002",
          "currency": "USDC",
          "maxAmount": "",
          "minAmount": "",
          "network": "eip155:8453",
          "scheme": "exact"
        },
        "providerName": "",
        "quality": {
          "l30DaysTotalCalls": "2",
          "l30DaysUniquePayers": "2"
        },
        "serviceName": "List units",
        "tags": [
          "list supported units",
          "unit metadata lookup",
          "valid unit abbreviations",
          "measurement units api",
          "discover conversion units"
        ],
        "url": "https://unit.openverbs.com/v1/list"
      }
    ],
    "enriched": false,
    "iconUrl": "",
    "id": "unit-openverbs-com",
    "integrationType": "",
    "isNew": false,
    "name": "unit.openverbs.com",
    "networks": [
      "Base"
    ],
    "priceSummary": {
      "avgCostBasis": "exact",
      "avgCostPerTransaction": "0.002",
      "currency": "USDC",
      "maxAmount": "0.002",
      "minAmount": "0.002"
    },
    "provider": "unit.openverbs.com",
    "providerUrl": "",
    "serviceName": "",
    "tags": [
      "convert units",
      "unit conversion api",
      "kilometers to miles",
      "celsius to fahrenheit",
      "kg to pounds",
      "list supported units",
      "unit metadata lookup",
      "valid unit abbreviations",
      "measurement units api",
      "discover conversion units"
    ]
  },
  "source": "agentic_market",
  "summary": ""
}

What the leaf hashes

{"body":"dfe869e0f95635c6b2e5f29e0996d9de978815eacc9302e659373a8a8de7f05f","id":1784792,"kind":"listing","method":"sync.agentic_market/1","observed_us":1793557140269690,"prev":283032,"subject":"agentic_market:unit-openverbs-com","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. 0x54717d316290449ede246c693a5bac2b4df3628c7e58468fb05251c6e469e5be
2. 0x516f51feaa91d67e0be4a19ea1a0efdecd469802f79c628c10e2d5599ccf3436
3. 0x8cfe1df209114c697e51eaa7fe3f2888ca8477457c020f6ad5c55fc6d6054596
4. 0xfbaba8e1d9ee204f712bb17c5af723c3f6fb250d5e50c8f310506847b8a98fda
5. 0x6c3329f64c3890f5dca1667d118c5d4d63f172bc480004862d99867ea71192f6
6. 0x80142ca795bd368cf7278e67462c2aece101745bdff80cd54c379a53966e262a
7. 0xcb37b95ed3ab42000bad2a3c157c1d5c86b817a9c2c5dba7f6f9f2f47b870a15
8. 0x90986a1c062465e9a1b80a1a4575e14a8f0fddf8f5cf70909484f2726a797772
9. 0x764c810271e0e022f79289097d0d7545e08143b6f8ce71305c69dae1a472b1c1
10. 0xd4a738f34a67dc047d0ab0f741ac77f20ffbc60ebba859ddb65b7ed04c11ddee
11. 0x70904954ad084a33867130c7a6404311142942f11e4439c12504d3888dd4da3b
12. 0x2fb8e5d30bae4bd9b3b3f3509ab2d5afd7d33f62afe51bc63e4a7a063ecf2226
13. 0x794bd22a6bc5ce0b466f5a150b64435e6cc8454386a705a7a74a4a6cbcb9e4d4
14. 0x9338fa49a0c5f3f5d810da4bc7c55c4f87067074ebe5e189dc6fb19ffee0ed93
15. 0xe622664153c4bb92e64b5edf8615a790cb48a8f528ac34b3faa4ef4dd70e05dd
16. 0xc1f6e8dd182b37cbb6e04d0e69486bd40d440934f8e373b9bae8cb78de508bba
17. 0x97f6f39e601b6ef0e47b730aa0488b718c0d7882ad840342bbd7d3a705a1b3a2
18. 0x1973893697931b7512ae5dc1a3c92ef92f633ae3574dce9029a35b5e94d2d364
19. 0x3315fd2757fdd435852cc277377234a3f3909a6d2a089d0e36f6d59aacfda910

Day root

0x7fa2cba1cf3d6b35630896f5fe1a650adb307ea2c376e80a5f2d9276b7cb5ab3

Chained

0x577ff89ba012beeff3197bcff7fa86752074bdf54205a24359cc437be2a952a4

Published

On Arc Testnet, block 70262758: 0x435bc1b9331471d72e1998f2e420983b5189d4da65ffbd6f27ef40daf5e1ea90