Evidence row 70555

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://api.x402node.dev/prices/historical"
    ]
  ],
  "name": "api.x402node.dev/prices/historical",
  "owner_address": "0x4466d4a84b7c49a6a094ec6eef4a0712d6dd125e",
  "raw": {
    "accepts": [
      {
        "amount": "8000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:8453",
        "payTo": "0x4466d4A84b7c49a6A094ec6eef4a0712D6dd125e",
        "scheme": "exact"
      },
      {
        "amount": "8000",
        "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
        "extra": {
          "feePayer": "CjNFTjvBhbJJd2B5ePPMHRLx1ELZpa8dwQgGL727eKww"
        },
        "maxTimeoutSeconds": 300,
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "payTo": "9urRvUx69HqAopg1JGV9P9wR7JdKoztzdkuNyJ8Eo1up",
        "scheme": "exact"
      }
    ],
    "description": "Historical USD price of a token at a specific past timestamp, by chain and contract address or coingecko id. For backtesting, accounting and cost-basis. Data an LLM cannot recall. historical price, price at timestamp, cost basis, backtest, token price history Accepts payment on Base or Solana — either network works.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "queryParams": {
              "coin": "string",
              "timestamp": "string"
            },
            "type": "http"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "method": {
                  "enum": [
                    "GET"
                  ],
                  "type": "string"
                },
                "queryParams": {
                  "properties": {
                    "coin": {
                      "description": "chain:address or coingecko:id",
                      "type": "string"
                    },
                    "timestamp": {
                      "description": "unix seconds, e.g. 1700000000",
                      "type": "string"
                    }
                  },
                  "required": [
                    "coin",
                    "timestamp"
                  ],
                  "type": "object"
                },
                "type": {
                  "const": "http",
                  "type": "string"
                }
              },
              "required": [
                "type",
                "method"
              ],
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      }
    },
    "lastUpdated": "2026-10-17T23:06:57.449Z",
    "quality": {
      "l30DaysTotalCalls": 4,
      "l30DaysUniquePayers": 4,
      "lastCalledAt": "2026-10-17T23:06:57.281Z"
    },
    "resource": "https://api.x402node.dev/prices/historical",
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Historical USD price of a token at a specific past timestamp, by chain and contract address or coingecko id. For backtesting, accounting and cost-basis. Data an LLM cannot recall. historical price, price at timestamp, cost basis, backtest, token price history Accepts payment on Base or Solana — either network works."
}

What the leaf hashes

{"body":"54d6d3d2bf9dec5d73d2d69a21f21a7dc47a9c143f2fc88761369117af63f585","id":70555,"kind":"listing","method":"baseline/1","observed_us":1793025480656641,"prev":null,"subject":"x402_bazaar:https://api.x402node.dev/prices/historical","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. 0x55ee087792d109330fa63de10e11dba36bdc0c7458cb81be2dfcb1742f555c0c
2. 0x40d8162f6d503be3fd3dbc48370d19e0cfe0bd92707d64a2b34b67603a1febb3
3. 0x1b47973272449b404c66af9cfcccd1bbdc0b5331eebf18c70b12290f9fe95416
4. 0x8581183c386dcbc209a01a202d2dc0c1b710b0d51324e305cf03e5b21083a4e8
5. 0x9c5720a25684371fb61114dae58b93ca98a2cdd0fc632869f1b2391dedcb51fa
6. 0x4240be190d74d0ccb26a70f5d30d10ee1a699f9a53a354dd03a2fe596710a29a
7. 0x233ecc9e8426eefca3b3e5da3432354ac4bc6edfde87e76cdef18ebb04a3fcd3
8. 0x14bfd6829d1685b85f57ec93a902f7f7c016e55238f6f5a68db83994e62c049b
9. 0xa5267777420dc9fb6c1524fff56330d05c272095a49b9846ad760f34fa49d785
10. 0x67cc9e33a20bfc6e2cc4190cfe822576e88db4e067580d9b03de61490ef43281
11. 0x8bfd0cb3fe1b89aff78054dc0373bbd54ebd61d68eb05854663a1667ccf265ff
12. 0x31b890f57b06aeb1ca9fb0cdc688bb75678ab9b2ff8ba49765e3d7bc0ae98597
13. 0x8ba3430866b4c11cea7eba9923ee4fa8a5074849df417006e4441426c1f13056
14. 0x5cdeb4648502e0633d01cc4f3379d48cccb9d4f528565b2868eb93db0df9e829
15. 0x7726154b91b2ad65b13849ef6cb6443b1f0ff113a3089c9bd5f2bcfc16be099d
16. 0x47b89901b0f07938a6b9a66ddf35683903f79d756a7c7763665fd632758b08d0
17. 0x9a83be955a206deb65b995adfd92c58fa31c95fbbf926bd199d300e70b08b26d
18. 0x20704208aa6923d6b2450ef74ede87a6e0265d46447926038fe9506e9e154b2d
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae