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Evidence row 117724

Observed , by baseline/1.

Kind
listing
About
source_record x402_bazaar:https://opendata402.com/v1/tides/us
Recorded
Previous row
None: the first of its kind about this subject
Body SHA-256
75e7d0e73a1656e00bc19e72aecf6c7488def187182b05301e7e6b13504e8bae
Leaf
0x13d6cd132d716c9c9c96e86bf93d411cc464efff8a40e18bc67514e6a1fa8163

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://opendata402.com/v1/tides/us"
    ]
  ],
  "name": "opendata402",
  "owner_address": "0x295aa6c5a3460a0f8755823c8ee7bbc7caf79fb1",
  "raw": {
    "accepts": [
      {
        "amount": "1000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 30,
        "network": "eip155:8453",
        "payTo": "0x295AA6c5a3460A0f8755823C8eE7bBC7CAf79fb1",
        "scheme": "exact"
      },
      {
        "amount": "1000",
        "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 30,
        "network": "eip155:137",
        "payTo": "0x295AA6c5a3460A0f8755823C8eE7bBC7CAf79fb1",
        "scheme": "exact"
      },
      {
        "amount": "1000",
        "asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 30,
        "network": "eip155:42161",
        "payTo": "0x295AA6c5a3460A0f8755823C8eE7bBC7CAf79fb1",
        "scheme": "exact"
      }
    ],
    "description": "US tides for a NOAA tide station: the latest observed water level (6-minute data) and today's and tomorrow's predicted high and low tides in metres relative to MLLW, times in UTC. Use it for boating, fishing, coastal work and shipping in US waters. Station id e.g. 9414290 (San Francisco).",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "queryParams": {
              "station": "9414290"
            },
            "type": "http"
          },
          "output": {
            "example": {
              "latest": {
                "level_m": 1.12,
                "time": "2026-10-14T06:42Z"
              },
              "name": "San Francisco",
              "predictions": [
                {
                  "level_m": 1.374,
                  "time": "2026-10-14T10:19Z",
                  "type": "high"
                }
              ],
              "station": "9414290"
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "method": {
                  "enum": [
                    "GET"
                  ],
                  "type": "string"
                },
                "queryParams": {
                  "properties": {
                    "station": {
                      "description": "NOAA CO-OPS station id (7 digits).",
                      "pattern": "^\\d{7}$",
                      "type": "string"
                    }
                  },
                  "required": [
                    "station"
                  ],
                  "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": "2026-10-14T22:49:20.448Z",
    "quality": {
      "l30DaysTotalCalls": 2,
      "l30DaysUniquePayers": 2,
      "lastCalledAt": "2026-10-14T22:49:20.17Z"
    },
    "resource": "https://opendata402.com/v1/tides/us",
    "serviceName": "opendata402",
    "tags": [
      "tides",
      "water-level",
      "noaa",
      "usa",
      "marine"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "US tides for a NOAA tide station: the latest observed water level (6-minute data) and today's and tomorrow's predicted high and low tides in metres relative to MLLW, times in UTC. Use it for boating, fishing, coastal work and shipping in US waters. Station id e.g. 9414290 (San Francisco)."
}

What the leaf hashes

{"body":"75e7d0e73a1656e00bc19e72aecf6c7488def187182b05301e7e6b13504e8bae","id":117724,"kind":"listing","method":"baseline/1","observed_us":1793025611822546,"prev":null,"subject":"x402_bazaar:https://opendata402.com/v1/tides/us","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of (296695 rows).

  1. 0x13d6e5ff9f177bfd06c7ff2917fd78ea57c55675a1a84b67b890421017db6e47
  2. 0x5750461f9afe358809c52b567bd61513545e84d01e5ad451f285ead8273628a4
  3. 0x56062be29fb1be3fcef71114a2685fb5321a60e54241730cf2bf2d704a951375
  4. 0xee26dbafefba106724a5b438c95e69fdb96c6f13807228c31021eeed90d62523
  5. 0x674fc5419455dd22dc4d41b0ae04debe957f171f33ac3b9331e4bb70ee74dfdd
  6. 0x09bbf25c2ecf9353a1062bbb718c33e42dc38388583dba155beeebda8b4281e2
  7. 0x7a50b03cdc7ec929f30b877d3b59ee7ee5d08db727671f71db491ca89071bbd7
  8. 0x94f1603736f094c4c6709a14ad123da5cdd28cea1c9d626ac8d796199302e15c
  9. 0x149324ace65a9469700d9d7f5ceb775a66a99af65c405efd3c481b187d09455f
  10. 0x7db5a200b679db21ea2e6e1ef5754ab4e6e096c29c406025cdb376cb10cfb19e
  11. 0xda5e2c2f0532a3bc2b2bc361905db44768a9ec088fd32d70f9333b7801b14b95
  12. 0x2412cb8bc4d10d94e1eb907d5058dd12133e55416609e1b314e811af76620542
  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

How to check it · This row as JSON