Evidence row 2189920

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://foundry.dap.solutions/api/compute-day-count-to-settlement"
    ]
  ],
  "name": "foundry.dap.solutions",
  "owner_address": null,
  "raw": {
    "caip2_networks": [
      "eip155:8453"
    ],
    "category": "",
    "description": "",
    "domain": "foundry.dap.solutions",
    "endpoints": [
      {
        "description": "Settlement date and day-count fraction on the Payments Canada calendar. Stale calendar data is refused, never guessed.",
        "method": "POST",
        "parameters": [
          {
            "default": null,
            "description": "",
            "enumValues": [],
            "example": "2026-07-01",
            "group": "body",
            "name": "accrual_start",
            "required": false,
            "type": "string"
          },
          {
            "default": null,
            "description": "",
            "enumValues": [],
            "example": "no-ruling-v1",
            "group": "body",
            "name": "acknowledge",
            "required": false,
            "type": "string"
          },
          {
            "default": null,
            "description": "",
            "enumValues": [],
            "example": "ca-payments-canada",
            "group": "body",
            "name": "calendar",
            "required": false,
            "type": "string"
          },
          {
            "default": null,
            "description": "",
            "enumValues": [],
            "example": "ACT/365F",
            "group": "body",
            "name": "convention",
            "required": false,
            "type": "string"
          },
          {
            "default": null,
            "description": "",
            "enumValues": [],
            "example": "P90D",
            "group": "body",
            "name": "freshness_tolerance",
            "required": false,
            "type": "string"
          },
          {
            "default": null,
            "description": "",
            "enumValues": [],
            "example": "2",
            "group": "body",
            "name": "settlement_lag",
            "required": false,
            "type": "string"
          },
          {
            "default": null,
            "description": "",
            "enumValues": [],
            "example": "2026-10-09",
            "group": "body",
            "name": "trade_date",
            "required": false,
            "type": "string"
          }
        ],
        "pricing": {
          "amount": "0.01",
          "currency": "USDC",
          "maxAmount": "",
          "minAmount": "",
          "network": "eip155:8453",
          "scheme": "exact"
        },
        "providerName": "",
        "quality": {
          "l30DaysTotalCalls": "2",
          "l30DaysUniquePayers": "2"
        },
        "serviceName": "DAP Foundry",
        "tags": [
          "finance",
          "settlement",
          "day-count",
          "calendar"
        ],
        "url": "https://foundry.dap.solutions/api/compute-day-count-to-settlement"
      }
    ],
    "enriched": false,
    "iconUrl": "",
    "id": "foundry-dap-solutions",
    "integrationType": "",
    "isNew": false,
    "name": "foundry.dap.solutions",
    "networks": [
      "Base"
    ],
    "priceSummary": {
      "avgCostBasis": "exact",
      "avgCostPerTransaction": "0.01",
      "currency": "USDC",
      "maxAmount": "0.01",
      "minAmount": "0.01"
    },
    "provider": "foundry.dap.solutions",
    "providerUrl": "",
    "serviceName": "DAP Foundry",
    "tags": [
      "finance",
      "settlement",
      "day-count",
      "calendar"
    ]
  },
  "source": "agentic_market",
  "summary": ""
}

What the leaf hashes

{"body":"94fcab5e670b7c04a55d5ee8d0487aa5d6fcdc66fa1fee601cf7fe8f3ebed1ce","id":2189920,"kind":"listing","method":"sync.agentic_market/1","observed_us":1793643650844791,"prev":null,"subject":"agentic_market:foundry-dap-solutions","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. 0x382950df1f0b36bdb04f3c2b1b48c4138b3c516c36a28c8763fb33d6a94754fe
2. 0x0777e3d3d4400ced4a679e23bdcd7748a4e7186aff1b552029190354c91c7510
3. 0x4491d6789976a5d739a144d392a93c422a27f5f75b834c9b9ddfab910ad1f275
4. 0xf83de7b182f30ed22d5660b33ee11f2722813794b6ed88c0cb5cefb0e477b337
5. 0x660071a243a699eacaa5c54001e1d46f0c0f1d6a9d510715b1c3b4f6f4d1ccc8
6. 0x56a82badae60b439014c0a9fd2e48d28461ae47494fb80066a1fc69771a6487b
7. 0x0111732e0d07a2a868f294c2a03ead4344feca6d4412a81d2ee3f8d524fc9600
8. 0xe1b984b556bee4a894932c979ce5be56927711da3c09bd192550b3b9e6b11329
9. 0xbe9472c2928cf5108f0fff1e6d3f61d6d17c43fb54ee1078f92a3f0b096fb69e
10. 0x5c2dbb0246e38b76a8a71b69c620c01b062203e298367be469f56610cb2a77ca
11. 0x9d12d652d78e0fd7c35f4926078c2643d24efffaabb4413e240035a200894add
12. 0x4447e402cea61275117ac4e9975eae04626bad327ccc4f13f5d1b453b487c0d6
13. 0xa0e5887b42201f4bffeb4ff69bd41372cabcdfc84eaf669d71bc4550864cf581
14. 0xeda95b8bf6c7d0b27dc5b32d6a6006255f41e0f6bbe80842a49daa792f4de811
15. 0x464ce6fe060d0a6c4e810b71501e55084086148f7daf393caa14462b1a777022
16. 0xd42916b5c6441e9c8d91ff91715af1489cb83dee26d47e7da107caa4d2a68b65
17. 0xa20b9be86af7d690e040c9060a373b2fc5498edf3432f43c26f74fa2febc1e9a
18. 0x050f2978b537f7afb21ee1551577cdf146d1c56f4df12d24315ae5e69366b0a4
19. 0x365b161a4b68d750dcc4b3ecce1154a2163c87b08762079428e68f0ebb6a754e

Day root

0x78fecaabbe319e56f5c4b80fc02e2052e198ad24781da8832a475ff65f2002d1

Chained

0xdc35957db5d1371ca382b9152878ffece28ec7c5cb4f98fd71ddb367f8b999b2

Published

On Arc Testnet, block 70432815: 0x56b814612eb2e3e544153df3e91e1f7199106d1e430c7d8c6b653feeb9ebe9af