← The evidence ledger
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).
- 0x13d6e5ff9f177bfd06c7ff2917fd78ea57c55675a1a84b67b890421017db6e47
- 0x5750461f9afe358809c52b567bd61513545e84d01e5ad451f285ead8273628a4
- 0x56062be29fb1be3fcef71114a2685fb5321a60e54241730cf2bf2d704a951375
- 0xee26dbafefba106724a5b438c95e69fdb96c6f13807228c31021eeed90d62523
- 0x674fc5419455dd22dc4d41b0ae04debe957f171f33ac3b9331e4bb70ee74dfdd
- 0x09bbf25c2ecf9353a1062bbb718c33e42dc38388583dba155beeebda8b4281e2
- 0x7a50b03cdc7ec929f30b877d3b59ee7ee5d08db727671f71db491ca89071bbd7
- 0x94f1603736f094c4c6709a14ad123da5cdd28cea1c9d626ac8d796199302e15c
- 0x149324ace65a9469700d9d7f5ceb775a66a99af65c405efd3c481b187d09455f
- 0x7db5a200b679db21ea2e6e1ef5754ab4e6e096c29c406025cdb376cb10cfb19e
- 0xda5e2c2f0532a3bc2b2bc361905db44768a9ec088fd32d70f9333b7801b14b95
- 0x2412cb8bc4d10d94e1eb907d5058dd12133e55416609e1b314e811af76620542
- 0xff1c28bdf595a3d1333e9915edc68e9c5fded7bd5923fa85870979af34cbc3b3
- 0xb49e8c2564256e5322e375cb619d9ac70fd17c1d1eba9c991bba4cb6428f45cc
- 0x60582ab4b41e72eb70eb0bce07fbf0fb4d2b62a8bad5be50f5d16d511adc746c
- 0xc6a4d7899a0f442958e26505011190b7cff2483611c1b94eba9043e0ba9ac36e
- 0x8c756542e482157df0c36464d75c937b845e4423dbbcfad08f0cf8d5a16b9a13
- 0x20704208aa6923d6b2450ef74ede87a6e0265d46447926038fe9506e9e154b2d
- 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a
- Day root
- 0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8
- Chained
- 0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a
- Published
- On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae