Evidence row 1790

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://canary.countersignpay.com/v1/base/head"
    ]
  ],
  "name": "canary.countersignpay.com",
  "owner_address": null,
  "raw": {
    "caip2_networks": [
      "eip155:8453"
    ],
    "category": "",
    "description": "",
    "domain": "canary.countersignpay.com",
    "endpoints": [
      {
        "description": "Current Base mainnet block height and base fee per gas in wei, read from the chain at request time",
        "method": "GET",
        "parameters": [],
        "pricing": {
          "amount": "0.01",
          "currency": "USDC",
          "maxAmount": "",
          "minAmount": "",
          "network": "eip155:8453",
          "scheme": "exact"
        },
        "providerName": "",
        "quality": {
          "l30DaysTotalCalls": "13",
          "l30DaysUniquePayers": "7"
        },
        "serviceName": "",
        "tags": [],
        "url": "https://canary.countersignpay.com/v1/base/head"
      }
    ],
    "enriched": false,
    "iconUrl": "",
    "id": "canary-countersignpay-com",
    "integrationType": "",
    "isNew": false,
    "name": "canary.countersignpay.com",
    "networks": [
      "Base"
    ],
    "priceSummary": {
      "avgCostBasis": "exact",
      "avgCostPerTransaction": "0.01",
      "currency": "USDC",
      "maxAmount": "0.01",
      "minAmount": "0.01"
    },
    "provider": "canary.countersignpay.com",
    "providerUrl": "",
    "serviceName": "",
    "tags": []
  },
  "source": "agentic_market",
  "summary": ""
}

What the leaf hashes

{"body":"2a0abb2f5ff67c2bcfcd75e786c4d8b3d5328f802c295c05ac4fe9304cad10a1","id":1790,"kind":"listing","method":"baseline/1","observed_us":1793025259236443,"prev":null,"subject":"agentic_market:canary-countersignpay-com","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-10-26 (296695 rows).

1. 0x84df11ea02a5dae5701becb4a9f1c2a1cfba294e54e842c6bf5ef743be7a1a5d
2. 0x4d46c128dee3edfc5930384c913033ea529a597af8d7ab222ca2d57d1eac7607
3. 0xffb1a3183faecfddfb110f66c0e4b1c99fd887f7837e858f8be9147803afa604
4. 0xc68e578c652df0d95ce4b8be2eb057efdc1bb38882acec9cbcacdf2cfe5a86fb
5. 0xc3648bf1fdffd1d763c30ff1e5988ce0bb238165a1f53ae0f6b32b6b4b0b7f47
6. 0x9de5808c3bfc632ed2ea0f2d504386f542e6ed4005aeba4a19fe139e5028e27a
7. 0xfffe27ea2830d54fad465c7835dfcb8d1b637afecf5c8116f6345489947a9b87
8. 0x0e176001aa4ea75011e88c9023cd88528b97832d7702bb4eb6ce54dacb72285f
9. 0xca94b2eb4dbd39705fde6c0afe784886166d172e034b96706e6f73452b52855c
10. 0x885deb0e4307fa99df9e773ff11344ee034f4c9c93d7eb138d0da714c1f8128b
11. 0x147021357b2eb773d60db74f751316bfd367b06080320d378c0c402240e98d59
12. 0x146f43471a3bde6d8a04e87b6afd3ee6860c6e38a009f86aee705ce722b67748
13. 0x91c2ae93ec20c7fed5088112fe3941ca622dfb3f8f1022c4844726c361244bd4
14. 0x0eff463856b0992d53ab7d8c0b97c71541413358bdd445710c1e4b6aeb4d8f78
15. 0x7eb603d37f0f22dae1ea013e391889906ffc0139ff26e25b044bee38eec8f9b2
16. 0x2b6e23e3624a1b66e1d2298cfbce99a93ce6b13d24a58112a71802d79c5f7a76
17. 0xd21942ae3214eff88e08ab04884fd4b11958b51af9a0741b7668e2d07a2c56c9
18. 0x9a9024edb5069d88a324facb310a5ce8e495214bbaa968f077bede437390194f
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae