Evidence row 1296

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://offercheck.offercheck.workers.dev/v1/price"
    ]
  ],
  "name": "offercheck",
  "owner_address": "0xb9721fdd2ec85f7f604f5bbca2292d7c4ff6b62c",
  "raw": {
    "accepts": [
      {
        "amount": "2000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 120,
        "network": "eip155:8453",
        "payTo": "0xB9721FDD2EC85F7f604F5BBcA2292d7C4ff6B62c",
        "scheme": "exact"
      }
    ],
    "description": "Current prices for cryptocurrencies and tokens by symbol (btc, eth, sol, usdc, ...), CoinGecko slug, or on-chain token address on Base, Ethereum, Arbitrum, Solana and 100+ chains, using DeFiLlama's aggregated DEX/CEX pricing with a per-asset confidence score. Quote in USD or any ECB fiat currency. Up to 25 assets per call. $0.002 per call.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "queryParams": {
              "ids": "btc,eth,base:0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
              "vs": "USD"
            },
            "type": "http"
          },
          "output": {
            "example": {
              "fetched_at": "2026-09-25T20:53:41.000Z",
              "ms": 180,
              "prices": {
                "base:0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913": {
                  "confidence": 0.99,
                  "decimals": 6,
                  "id": "base:0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
                  "price": 0.9999,
                  "price_usd": 0.9999,
                  "priced_at": "2026-09-25T20:53:20.000Z",
                  "symbol": "USDC"
                },
                "btc": {
                  "confidence": 0.99,
                  "id": "coingecko:bitcoin",
                  "price": 83819.24,
                  "price_usd": 83819.24,
                  "priced_at": "2026-09-25T20:53:20.000Z",
                  "symbol": "BTC"
                }
              },
              "source": "DeFiLlama coins API (aggregated on-chain DEX + CEX pricing with a per-asset confidence score)",
              "vs": "USD",
              "warnings": []
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "method": {
                  "enum": [
                    "GET"
                  ],
                  "type": "string"
                },
                "queryParams": {
                  "properties": {
                    "ids": {
                      "default": "btc,eth",
                      "description": "Comma-separated assets: symbols (btc, eth, sol, usdc, usdt, bnb, xrp, ada, doge, avax, link, ...), coingecko:<slug>, or <chain>:<token address> (e.g. base:0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913). Default btc,eth. Max 25.",
                      "type": "string"
                    },
                    "vs": {
                      "default": "USD",
                      "description": "Quote currency: USD (default) or any ECB fiat code (EUR, GBP, JPY, ...)",
                      "type": "string"
                    }
                  },
                  "required": [],
                  "type": "object"
                },
                "type": {
                  "const": "http",
                  "type": "string"
                }
              },
              "required": [
                "type",
                "method"
              ],
              "type": "object"
            },
            "output": {
              "properties": {
                "example": {
                  "type": "object"
                },
                "type": {
                  "type": "string"
                }
              },
              "required": [
                "type"
              ],
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      }
    },
    "lastUpdated": "2026-10-26T00:16:34.66Z",
    "quality": {
      "l30DaysTotalCalls": 9,
      "l30DaysUniquePayers": 5,
      "lastCalledAt": "2026-10-26T00:16:34.525Z"
    },
    "resource": "https://offercheck.offercheck.workers.dev/v1/price",
    "serviceName": "offercheck",
    "tags": [
      "finance",
      "fx",
      "exchange-rate",
      "currency",
      "crypto"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Current prices for cryptocurrencies and tokens by symbol (btc, eth, sol, usdc, ...), CoinGecko slug, or on-chain token address on Base, Ethereum, Arbitrum, Solana and 100+ chains, using DeFiLlama's aggregated DEX/CEX pricing with a per-asset confidence score. Quote in USD or any ECB fiat currency. Up to 25 assets per call. $0.002 per call."
}

What the leaf hashes

{"body":"8692f1ac5bbd9f77248dcbcfbd704dbe03de43446514174bebd6e164da2aca4a","id":1296,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793025250696913,"prev":null,"subject":"x402_bazaar:https://offercheck.offercheck.workers.dev/v1/price","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. 0x12444dfafc976c2306f6577adf7d66016c3727b3b08c3b6551660389982f2829
2. 0x97f10f5aeaca124ef7c5c50b5caa0e3346eb28d758fad4ab1eade1ef50450bd5
3. 0x49bda00932a8fa22533f043d0591ba8f20bcf907cb1f360bf7528736ab1c26d9
4. 0xc07155c1c0023a405c70e783075b1d049e2507456464dcc2bd65abfcdff36217
5. 0xc24db0c285429eb24c4536f6894694ac3f89c5306481f04bf9e7c189168c9f22
6. 0xd4970861a46f42436cab374c0469f44b3f271c51e7a40d19e7a9b96a2c9413ed
7. 0xea2df0c5df5cda3af4bff10bd3dafca06cb6554c76dbba0ef402e651139e1e4b
8. 0x5e2e4980f8d7fa01e50973f011f8375aa3c672c3b66b18f1095459d2ee0fceb4
9. 0xe0ec03c9f8293fea884d675b65ce4d53fd9d3ede010fc4ebad07e7824923238c
10. 0x8b074e295bef9ac21d945d10f5903500dd59050adddb16656bd7293d68fee436
11. 0x502ad0a7c2d0bbc45ef3aea37a6ae457822535bcbd44272f1f9e8e4f7166c167
12. 0x7e390200ea1ea25db5884cf05fa50ad599f0759b573f081e361cc22f7206133c
13. 0xff1c28bdf595a3d1333e9915edc68e9c5fded7bd5923fa85870979af34cbc3b3
14. 0xb49e8c2564256e5322e375cb619d9ac70fd17c1d1eba9c991bba4cb6428f45cc
15. 0x60582ab4b41e72eb70eb0bce07fbf0fb4d2b62a8bad5be50f5d16d511adc746c
16. 0xc6a4d7899a0f442958e26505011190b7cff2483611c1b94eba9043e0ba9ac36e
17. 0x8c756542e482157df0c36464d75c937b845e4423dbbcfad08f0cf8d5a16b9a13
18. 0x20704208aa6923d6b2450ef74ede87a6e0265d46447926038fe9506e9e154b2d
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae