Evidence row 453424

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://payments-intel-production.up.railway.app/v1/token"
    ]
  ],
  "name": "payments-intel-production.up.railway.app/v1/token",
  "owner_address": "0x4421dea0f91e67608b52bce35d9fb2a3574e4453",
  "raw": {
    "accepts": [
      {
        "amount": "1000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:8453",
        "payTo": "0x4421dea0F91E67608B52BCE35D9fb2a3574e4453",
        "scheme": "exact"
      }
    ],
    "description": "What are the symbol, name, decimals, contract address and issuer of this stablecoin on this chain? Cited stablecoin token facts from a prepared dataset (USDC, EURC, USDT, PYUSD, DAI on the chains /v1/chain covers, where a permissively licensed source lists them): symbol, name, decimals, contract address, chain, issuer, each with a source citation and license. Fields not established from a source are the string \"unknown\". Malformed input and tokens not in the dataset return 400/404 and are never ",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "queryParams": {
              "chain": "base",
              "symbol": "USDC"
            },
            "type": "http"
          },
          "output": {
            "example": {
              "as_of": "2026-10-13",
              "note": "...",
              "sources": [
                {
                  "id": "trustwallet-assets",
                  "license": "MIT",
                  "url": "https://github.com/trustwallet/assets"
                }
              ],
              "token": {
                "address": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
                "as_of": "2026-10-13",
                "chain": "base",
                "chain_id": "eip155:8453",
                "decimals": 6,
                "issuer": "unknown",
                "name": "USDC",
                "source": [
                  {
                    "fact": "decimals",
                    "source_id": "trustwallet-assets",
                    "url": "https://github.com/trustwallet/assets/blob/master/blockchains/base/assets/0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913/info.json"
                  }
                ],
                "symbol": "USDC",
                "website_listed": "https://centre.io/usdc"
              }
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "method": {
                  "enum": [
                    "GET"
                  ],
                  "type": "string"
                },
                "queryParams": {
                  "properties": {
                    "address": {
                      "description": "Token contract / mint address (give address or symbol)",
                      "type": "string"
                    },
                    "chain": {
                      "description": "Chain slug, name or CAIP-2 id, e.g. base, solana, eip155:8453",
                      "type": "string"
                    },
                    "symbol": {
                      "description": "Stablecoin ticker, e.g. USDC (give symbol or address)",
                      "type": "string"
                    }
                  },
                  "required": [
                    "chain"
                  ],
                  "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": "2026-10-27T10:11:10.372Z",
    "quality": {
      "l30DaysTotalCalls": 4,
      "l30DaysUniquePayers": 3,
      "lastCalledAt": "2026-10-23T17:20:10.885Z"
    },
    "resource": "https://payments-intel-production.up.railway.app/v1/token",
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "What are the symbol, name, decimals, contract address and issuer of this stablecoin on this chain? Cited stablecoin token facts from a prepared dataset (USDC, EURC, USDT, PYUSD, DAI on the chains /v1/chain covers, where a permissively licensed source lists them): symbol, name, decimals, contract address, chain, issuer, each with a source citation and license. Fields not established from a source are the string \"unknown\". Malformed input and tokens not in the dataset return 400/404 and are never"
}

What the leaf hashes

{"body":"00b022d1d07a3f9ff189605d714e70281f48080029a16bd4971a14a71f17cbac","id":453424,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793100630449707,"prev":118425,"subject":"x402_bazaar:https://payments-intel-production.up.railway.app/v1/token","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-10-27 (273461 rows).

1. 0xea6ad4143de2b3a03647cb7c94c3632aaab542bda22fcfe8647489c403e0ed44
2. 0xa2d6441a383bc381f299200dad354868a24a87dd1ecfb75fb8f32f1a313ccd39
3. 0x7011e9fcc2843533a3d80ba82f59d28d36876ca8b4761deeeb8d827cc504fabc
4. 0x871ccc4669c11ac251e29a70a13865b765a367007377e6fb6bdbad408fa69610
5. 0xb53b1a23c3ae4a0afcc2f6482462cf5e896541170c5924234a1b909c2e2e9d5d
6. 0xa288452d9c62e8496d347d2bdf67b6a1252da911559f4e6e131da60a05c55a1b
7. 0xa6453fbd9890ca56aa7312939be8aa9ea20c0d02e451734a3e9cf9cc718724f1
8. 0x716ecab32e5cf2874f374ae714de97349724f78d00fe5acfc2f41636535046ef
9. 0x5668b5deb970e2c678e613fa60d238e161a87bb10a7d0d6e35c6747081d9edbb
10. 0x694f3f33268c5bc6380613bb5b291820cb4ce07a82164429442bc75b24ebcc5e
11. 0x8cc7cdbb404948d6c8277e8104fbf6f6ef7bc67273321adedcf016270a69a84e
12. 0x71d164c799d87b4dc25af672a70aaf73791d8dbb1786a5d4eb3ead269cb7c28a
13. 0x89602081fbcc80aef8908f5df765767a1a41cc8b089111259ea78e6583a8bc4b
14. 0x41f9f462759cb539183e979fb3eb967d94755cf039c44a64a9a3c4ad97523cfd
15. 0x56f7109d4cde42492651beb1237c13cdcbf95e6fee2b2482391a2388e04c4629
16. 0x8745bd887f5ce9f7a49558fd2b04cdcd97a05ea9f8a23f62d0e80cb13d328b0f
17. 0xdf1105afdc109de3c09a98fc8a3864159ad964e6f49b635c105a27a1e1f14310
18. 0x2bf8151e5f157dd183b9de6fa00469551932a7a6e3f33a694895000ac9061197
19. 0x9fc354c0ea3efc3f1b6548bb77ea902a50f2c9647647ea61592efce2bd795699

Day root

0xdd77e5e99da32c3f154180d63e3c3e6fe11e896a2c6896412ef6b5c4bcf7e795

Chained

0x23bb4dfd09f55c15ac3962f53578e02c6114d5bfd9bb451cf8794fb6e2817ef4

Published

On Arc Testnet, block 69414147: 0xb2ebd83aafeb765a0ce66e76aefb133ed06606c98038fd56191e2bcd1dcb77b4