Evidence row 76225

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://hcrb.in/v1/tools/crypto-ticker/call"
    ]
  ],
  "name": "hcrb.in/v1/tools/crypto-ticker/call",
  "owner_address": "0xc59c85e661d34084a7769f955d17fd38254a6235",
  "raw": {
    "accepts": [
      {
        "amount": "10000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "description": "code402 crypto-ticker (standard floor — 1.0x reserve floor)",
        "extra": {
          "asset_caip19": "eip155:8453/erc20:0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
          "currency": "USDC",
          "multiplier": 1,
          "name": "USD Coin",
          "payTo_caip10": "eip155:8453:0xc59c85e661d34084a7769f955d17fd38254a6235",
          "tier": "economy",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "mimeType": "application/json",
        "network": "eip155:8453",
        "payTo": "0xc59c85e661d34084a7769f955d17fd38254a6235",
        "resource": "https://hcrb.in/v1/tools/crypto-ticker/call",
        "scheme": "exact"
      },
      {
        "amount": "10000",
        "asset": "0x60a3E35Cc302bFA44Cb288Bc5a4F316Fdb1adb42",
        "description": "code402 crypto-ticker (EURC — standard floor)",
        "extra": {
          "asset_caip19": "eip155:8453/erc20:0x60a3E35Cc302bFA44Cb288Bc5a4F316Fdb1adb42",
          "currency": "EURC",
          "multiplier": 1,
          "name": "EURC",
          "payTo_caip10": "eip155:8453:0xc59c85e661d34084a7769f955d17fd38254a6235",
          "tier": "economy",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "mimeType": "application/json",
        "network": "eip155:8453",
        "payTo": "0xc59c85e661d34084a7769f955d17fd38254a6235",
        "resource": "https://hcrb.in/v1/tools/crypto-ticker/call",
        "scheme": "exact"
      }
    ],
    "description": "Spot USD price for a crypto ticker or CoinGecko id from public price feeds, cached 60 s. Result carries a signed receipt.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "input": {
                "symbol": "btc"
              }
            },
            "bodyType": "json",
            "method": "POST",
            "type": "http"
          },
          "output": {
            "example": {
              "cached": false,
              "coingecko_id": "bitcoin",
              "currency": "usd",
              "price_usd": 0,
              "symbol": "btc",
              "valid": true
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "body": {
                  "additionalProperties": false,
                  "properties": {
                    "input": {
                      "properties": {
                        "symbol": {
                          "description": "Ticker symbol (btc, eth, sol, …) or a CoinGecko asset id (bitcoin, ethereum, …).",
                          "type": "string"
                        }
                      },
                      "required": [
                        "symbol"
                      ],
                      "type": "object"
                    }
                  },
                  "required": [
                    "input"
                  ],
                  "type": "object"
                },
                "bodyType": {
                  "enum": [
                    "json",
                    "form-data",
                    "text"
                  ],
                  "type": "string"
                },
                "method": {
                  "enum": [
                    "POST",
                    "PUT",
                    "PATCH"
                  ],
                  "type": "string"
                },
                "type": {
                  "const": "http",
                  "type": "string"
                }
              },
              "required": [
                "type",
                "method",
                "bodyType",
                "body"
              ],
              "type": "object"
            },
            "output": {
              "properties": {
                "example": {
                  "properties": {
                    "cached": {
                      "type": "boolean"
                    },
                    "coingecko_id": {
                      "type": "string"
                    },
                    "currency": {
                      "type": "string"
                    },
                    "fetched_at": {
                      "type": "string"
                    },
                    "price_usd": {
                      "type": "number"
                    },
                    "reason": {
                      "type": "string"
                    },
                    "retryable": {
                      "type": "boolean"
                    },
                    "scope": {
                      "type": "string"
                    },
                    "symbol": {
                      "type": "string"
                    },
                    "tool": {
                      "type": "string"
                    },
                    "valid": {
                      "type": "boolean"
                    }
                  },
                  "required": [
                    "valid",
                    "symbol"
                  ],
                  "type": "object"
                },
                "type": {
                  "type": "string"
                }
              },
              "required": [
                "type"
              ],
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      }
    },
    "lastUpdated": "2026-10-17T23:12:03.992Z",
    "quality": {
      "l30DaysTotalCalls": 2,
      "l30DaysUniquePayers": 2,
      "lastCalledAt": "2026-10-17T23:12:03.393Z"
    },
    "resource": "https://hcrb.in/v1/tools/crypto-ticker/call",
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Spot USD price for a crypto ticker or CoinGecko id from public price feeds, cached 60 s. Result carries a signed receipt."
}

What the leaf hashes

{"body":"4cc17bb41587fa4819867f96ab4e7b2f30290c75ed5000628bbb8f56f77ef303","id":76225,"kind":"listing","method":"baseline/1","observed_us":1793025491813674,"prev":null,"subject":"x402_bazaar:https://hcrb.in/v1/tools/crypto-ticker/call","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. 0xb855cf8d5d5e63a1f610af315dbf046e6ed78eda3f04b115d57d648ab78c8576
2. 0x9356c5d0af769341fbcec800c7932faffe6399d8422b8163b6562c517d5343f8
3. 0xa18966a6759fdfe5f22a93e18411cd57b04620f18c5a02afe18c7988094ffae2
4. 0x875f8c83a8d1223ca4bfc0ddb8aec2851d24005d8fa1ff6017383061a146d785
5. 0x4d826e100990f8d6347acf3fb14151bfe6920739eb9e5fcff31193cb9f0866f9
6. 0x3856a56fd1d7330a844ddaeb7e8cc316e34b6aed82fe4f4553caf7ebe69bffbc
7. 0x8eb949ebca3a43f699c210f5ac9fe4d9f98f39bb49d3bbc7d27102717a3663d2
8. 0x671c47ce606be10270a5033f214eee726cc33a9fd7505667f7ee3417eb5a4e62
9. 0xc9bd1b155c05de30e363c07bb71e6d23e64c096985805036b2061a5c0cb9cbf8
10. 0x305a3f47b3689c4a43df7d5c5f208a0395fe7436d6b4555db7943094d45d61a1
11. 0x930671b38b693880d085315beda88a1c227f3639e9a0e0be6b0665bb173a65db
12. 0xb6efd79902cac6d5a402ebecb8069402f00961ab80cd71b4d647fbc686d975ec
13. 0x2f43fe2b2533a5f40c107c114e458e226102f5f8ae91f097e964345880e30928
14. 0xf692ce2b0a640ec9f75aa960e5fb1c2c7091a04e24881798735752c19014e519
15. 0x9f68b5e15459cb62b8c0cd4c124fa61c74147b4a5755a200fbecd21a581635d1
16. 0x123ec8bee20ddc55223eeef5a4f4d6c4b6416515adbb911c56759f5cde56e452
17. 0xd0651cb9bc8155eb52b5247d506e74b8a935057dc190ba52091702ac25ed3a40
18. 0x9a9024edb5069d88a324facb310a5ce8e495214bbaa968f077bede437390194f
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae