Evidence row 72147

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://ch-cm-kg.ai/api"
    ]
  ],
  "name": "ch-cm-kg.ai/api",
  "owner_address": "0x0bfd52ea41841d0f1121399167bfe36781d40ebb",
  "raw": {
    "accepts": [
      {
        "amount": "10000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "description": "One paid call on ch-cm-kg.ai for $0.01 USDC: the surface's own statement of record (a market node: its list_nodes line; a product: its record of record; allooloo.io: the estate scale block), public-record only, with an EdDSA-signed receipt that resolves forever at https://ch-cm-kg.ai/x402/receipt/{nonce}. Doctrine: https://agentic-x402.ai/.",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxAmountRequired": "10000",
        "maxTimeoutSeconds": 300,
        "mimeType": "application/json",
        "network": "eip155:8453",
        "payTo": "0x0Bfd52Ea41841D0F1121399167bfE36781d40ebB",
        "resource": "https://ch-cm-kg.ai/api",
        "scheme": "exact"
      },
      {
        "amount": "10000",
        "asset": "0xB2000000000000000000002fEb517dFeC7415344",
        "description": "One paid call on ch-cm-kg.ai for $0.01 USDC: the surface's own statement of record (a market node: its list_nodes line; a product: its record of record; allooloo.io: the estate scale block), public-record only, with an EdDSA-signed receipt that resolves forever at https://ch-cm-kg.ai/x402/receipt/{nonce}. Doctrine: https://agentic-x402.ai/.",
        "extra": {
          "assetTransferMethod": "permit2",
          "name": "OpenUSD",
          "version": "1"
        },
        "maxAmountRequired": "10000",
        "maxTimeoutSeconds": 300,
        "mimeType": "application/json",
        "network": "eip155:8453",
        "payTo": "0xF516E2C54C7cDb5b34857fa35278259ff24fC8bF",
        "resource": "https://ch-cm-kg.ai/api",
        "scheme": "exact"
      }
    ],
    "description": "One paid call on ch-cm-kg.ai for $0.01 USDC: the surface's own statement of record (a market node: its list_nodes line; a product: its record of record; allooloo.io: the estate scale block), public-record only, with an EdDSA-signed receipt that resolves forever at https://ch-cm-kg.ai/x402/receipt/{nonce}. Doctrine: https://agentic-x402.ai/.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "type": "http"
          },
          "output": {
            "example": {
              "data": {
                "statement": "the surface's record of record",
                "surface": "ch-cm-kg.ai"
              },
              "receipt": {
                "amount_usdc": "0.01",
                "receipt_url": "https://ch-cm-kg.ai/x402/receipt/{nonce}",
                "settled": true
              }
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "properties": {
                "method": {
                  "enum": [
                    "GET",
                    "HEAD",
                    "DELETE"
                  ],
                  "type": "string"
                },
                "type": {
                  "const": "http",
                  "type": "string"
                }
              },
              "required": [
                "type",
                "method"
              ],
              "type": "object"
            },
            "output": {
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      },
      "eip2612GasSponsoring": {
        "info": {
          "description": "The facilitator accepts EIP-2612 gasless Permit to Permit2 canonical contract.",
          "version": "1"
        },
        "schema": {
          "type": "object"
        }
      }
    },
    "lastUpdated": "2026-10-24T15:14:38.248Z",
    "quality": {
      "l30DaysTotalCalls": 6,
      "l30DaysUniquePayers": 6,
      "lastCalledAt": "2026-10-24T15:14:37.447Z"
    },
    "resource": "https://ch-cm-kg.ai/api",
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "One paid call on ch-cm-kg.ai for $0.01 USDC: the surface's own statement of record (a market node: its list_nodes line; a product: its record of record; allooloo.io: the estate scale block), public-record only, with an EdDSA-signed receipt that resolves forever at https://ch-cm-kg.ai/x402/receipt/{nonce}. Doctrine: https://agentic-x402.ai/."
}

What the leaf hashes

{"body":"2f6f17616befa3b99c9a894346e9776324fecd4d2626cad33dc73d417e472d08","id":72147,"kind":"listing","method":"baseline/1","observed_us":1793025485441261,"prev":null,"subject":"x402_bazaar:https://ch-cm-kg.ai/api","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. 0xde51964fccefbc4cdafe9d911745718a3f37252aa73e7633d73426e37a759dd2
2. 0x11f37f9abe18db1e9471474f9694cbf0d0c5507f81e852c7052c3c5e011238b7
3. 0xf5f87c8cb2c712757c8cb4055002020984e8639dcd2513400e1b4aea7ab8f8b2
4. 0x9c7bf41aa81924f8e2233ce62bcd701355479be0a14d0d966f878183e51a95e4
5. 0xee47f933a13a7287206fae6ff8ed89a85abc7b6ab2b482f17efce973acfe8d2b
6. 0x2c2065ed02ab65c4e57a9407609045aa321238f9fa710724009378348b250f74
7. 0x66e44dd43a39f1642f67066bd8f5ae71cb7e9e2f475ab091235794b4aa54eaab
8. 0x481c3ac997060b05d18826dd3fe01231b140e8390a6be1d33993886b1d5488c9
9. 0x90f31318bc82c2efd70ef8f428dd812029c877364777efb309b6cd0e23a8c458
10. 0x2d9d6462afc5b1463c70c3ad7bab0bbd60dd232ca8386916ee54414b71a3db6e
11. 0x85202061e6a75f8df085f0bff56604cbc8349d53f71525ea3c173296a57488dc
12. 0xd5d3f9a510ef9bc1156a86fc24b9d0c3a67b96d7c1dad1563f35f879e0ac9b4b
13. 0xa4edde833302b48399053e2519aea1aed1074cd102bf4b553643df1866cce4ec
14. 0x0b7541c75cc482a7134110311d7dbd02095d969ba21177de9b21a52a55981718
15. 0x6dc40f983a3840a0ad927a9ca17f4ff1e3b649a6c735e2a09b140db7c2caf13b
16. 0x703f95866af09c5e5d6ead7411e9a10f964a41a2aff64d4a55ff0053c023a023
17. 0xd0651cb9bc8155eb52b5247d506e74b8a935057dc190ba52091702ac25ed3a40
18. 0x9a9024edb5069d88a324facb310a5ce8e495214bbaa968f077bede437390194f
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae