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Evidence row 119985

Observed , by baseline/1.

Kind
listing
About
source_record x402_bazaar:https://saylorinnovations.com/api/hazards/emsc-quakes
Recorded
Previous row
None: the first of its kind about this subject
Body SHA-256
d56b3aeb6fccd473137eab87d94364e31ccdfa3ce91ed3213d249f8d4000d3fb
Leaf
0x612a5583ee1c7b86833ec680dac70530ef0301fda48485f3bec7d4069571192c

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://saylorinnovations.com/api/hazards/emsc-quakes"
    ]
  ],
  "name": "Saylor Innovations Data Desk",
  "owner_address": "0xa2a8df0f7caabea4e120a2568118f141569fc8aa",
  "raw": {
    "accepts": [
      {
        "amount": "10000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "assetTransferMethod": "eip3009",
          "facilitatorOnly": true,
          "memo": "saylor:datadesk:emsc-quakes",
          "name": "USD Coin",
          "note": "Base settles through an x402 facilitator. Send payload.signature and payload.authorization (EIP-3009); there is no self-submitted path on this network.",
          "version": "2"
        },
        "maxTimeoutSeconds": 120,
        "network": "eip155:8453",
        "payTo": "0xA2A8dF0f7CaaBEa4e120a2568118f141569fc8aa",
        "scheme": "exact"
      },
      {
        "amount": "10000",
        "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
        "extra": {
          "assetTransferMethod": "eip3009",
          "facilitatorOnly": true,
          "memo": "saylor:datadesk:emsc-quakes",
          "name": "USD Coin",
          "note": "Polygon settles through an x402 facilitator. Send payload.signature and payload.authorization (EIP-3009); there is no self-submitted path on this network.",
          "version": "2"
        },
        "maxTimeoutSeconds": 120,
        "network": "eip155:137",
        "payTo": "0xA2A8dF0f7CaaBEa4e120a2568118f141569fc8aa",
        "scheme": "exact"
      },
      {
        "amount": "10000",
        "asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
        "extra": {
          "assetTransferMethod": "eip3009",
          "facilitatorOnly": true,
          "memo": "saylor:datadesk:emsc-quakes",
          "name": "USD Coin",
          "note": "Arbitrum settles through an x402 facilitator. Send payload.signature and payload.authorization (EIP-3009); there is no self-submitted path on this network.",
          "version": "2"
        },
        "maxTimeoutSeconds": 120,
        "network": "eip155:42161",
        "payTo": "0xA2A8dF0f7CaaBEa4e120a2568118f141569fc8aa",
        "scheme": "exact"
      },
      {
        "amount": "10000",
        "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
        "extra": {
          "feePayer": "BENrLoUbndxoNMUS5JXApGMtNykLjFXXixMtpDwDR9SP",
          "memo": "saylor:datadesk:emsc-quakes",
          "reference": "G8swMGBHYQAK564H1yGJ19hLm6yUwuAEaXoCRbgQJrjR",
          "session": "eyJhcnRpY2xlSWQiOiJkYXRhZGVzazplbXNjLXF1YWtlcyIsInJlZmVyZW5jZSI6Ikc4c3dNR0JIWVFBSzU2NEgxeUdKMTloTG02eVV3dUFFYVhvQ1JiZ1FKcmpSIiwicmVjaXBpZW50IjoiN0xTamZySmY4Zk5zQjhWQTl1N04zV0VuMjVzbVFMcG9iM1N2eVV2WGFjeTciLCJtaW50IjoiRVBqRldkZDVBdWZxU1NxZU0ycU4xeHp5YmFwQzhHNHdFR0drWnd5VER0MXYiLCJtaW5BbW91bnQiOjEwMDAwLCJleHAiOjE3OTI0NTQ0NzQ4MDd9.o2XGPHK3r221fK1-7S8RQ3Adwmkqg8qKdKKIQxdi9X8"
        },
        "maxTimeoutSeconds": 120,
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
        "scheme": "exact"
      },
      {
        "amount": "10000",
        "asset": "Es9vMFrzaCERmJfrF4H2FYD4KCoNkY11McCe8BenwNYB",
        "extra": {
          "feePayer": "BENrLoUbndxoNMUS5JXApGMtNykLjFXXixMtpDwDR9SP",
          "memo": "saylor:datadesk:emsc-quakes",
          "reference": "7arDiH6NZ2GoPsXrXnvWhKJBuESRmrutQcsA4yW12iiN",
          "session": "eyJhcnRpY2xlSWQiOiJkYXRhZGVzazplbXNjLXF1YWtlcyIsInJlZmVyZW5jZSI6IjdhckRpSDZOWjJHb1BzWHJYbnZXaEtKQnVFU1JtcnV0UWNzQTR5VzEyaWlOIiwicmVjaXBpZW50IjoiN0xTamZySmY4Zk5zQjhWQTl1N04zV0VuMjVzbVFMcG9iM1N2eVV2WGFjeTciLCJtaW50IjoiRXM5dk1GcnphQ0VSbUpmckY0SDJGWUQ0S0NvTmtZMTFNY0NlOEJlbndOWUIiLCJtaW5BbW91bnQiOjEwMDAwLCJleHAiOjE3OTI0NTQ0NzQ4MDd9.Nlc6nJrLY1cLa5rHq_P5a5MF0DnhGVBETsPGBbtdAJo"
        },
        "maxTimeoutSeconds": 120,
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
        "scheme": "exact"
      },
      {
        "amount": "92424",
        "asset": "So11111111111111111111111111111111111111112",
        "extra": {
          "memo": "saylor:datadesk:emsc-quakes",
          "native": true,
          "note": "Native SOL: send lamports with a system transfer, not an SPL transfer. Price is quoted live and this quote expires in 120s.",
          "quotedLamports": "95283",
          "reference": "DeRmKkh8GDtz26eWCA7VbswptZnvHSQeYerLvLD2Jmei",
          "session": "eyJhcnRpY2xlSWQiOiJkYXRhZGVzazplbXNjLXF1YWtlcyIsInJlZmVyZW5jZSI6IkRlUm1La2g4R0R0ejI2ZVdDQTdWYnN3cHRabnZIU1FlWWVyTHZMRDJKbWVpIiwicmVjaXBpZW50IjoiN0xTamZySmY4Zk5zQjhWQTl1N04zV0VuMjVzbVFMcG9iM1N2eVV2WGFjeTciLCJtaW50IjpudWxsLCJtaW5BbW91bnQiOjkyNDI0LCJleHAiOjE3OTI0NTQ0NzQ4MDd9.VfxdLRZGnoVwQOtIUMZo_HvsAwUhNBHXnVdLOaAZyAw",
          "solUsdPrice": 104.95
        },
        "maxTimeoutSeconds": 120,
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
        "scheme": "exact"
      }
    ],
    "description": "Worldwide earthquakes from the EMSC for the last 1-168 hours at or above a minimum magnitude - region, depth, coordinates, agency and the strongest event",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "queryParams": {
              "hours": "24",
              "minmag": "4.5"
            },
            "type": "http"
          },
          "output": {
            "example": {
              "earthquakes": [
                {
                  "depth_km": 10,
                  "id": "20261016_0000053",
                  "last_update": "2026-10-16T04:56:58.470009Z",
                  "lat": 13.934,
                  "lon": -92.8623,
                  "magnitude": 4.7,
                  "magnitude_type": "mb",
                  "region": "OFFSHORE CHIAPAS, MEXICO",
                  "reporting_agency": "NEIC",
                  "time": "2026-10-16T04:42:40.89Z",
                  "url": "https://www.emsc-csem.org/Earthquake_information/earthquake.php?id=2075559"
                },
                {
                  "depth_km": 10,
                  "id": "20261016_0000037",
                  "last_update": "2026-10-16T03:50:25.518969Z",
                  "lat": 7.4932,
                  "lon": -80.6042,
                  "magnitude": 4.5,
                  "magnitude_type": "m",
                  "region": "PANAMA",
                  "reporting_agency": "IGC",
                  "time": "2026-10-16T03:44:55.0Z",
                  "url": "https://www.emsc-csem.org/Earthquake_information/earthquake.php?id=2075545"
                },
                {
                  "depth_km": 133.9,
                  "id": "20261016_0000039",
                  "last_update": "2026-10-16T06:50:40.40845Z",
                  "lat": 52.0318,
                  "lon": 157.2219,
                  "magnitude": 6.9,
                  "magnitude_type": "mw",
                  "region": "KAMCHATKA PENINSULA, RUSSIA",
                  "reporting_agency": "EMSC",
                  "time": "2026-10-16T03:35:32.16Z",
                  "url": "https://www.emsc-csem.org/Earthquake_information/earthquake.php?id=2075539"
                }
              ],
              "min_magnitude": 4.5,
              "returned": 14,
              "source": "EMSC (Euro-Mediterranean Seismological Centre)",
              "strongest": {
                "depth_km": 133.9,
                "id": "20261016_0000039",
                "last_update": "2026-10-16T06:50:40.40845Z",
                "lat": 52.0318,
                "lon": 157.2219,
                "magnitude": 6.9,
                "magnitude_type": "mw",
                "region": "KAMCHATKA PENINSULA, RUSSIA",
                "reporting_agency": "EMSC",
                "time": "2026-10-16T03:35:32.16Z",
                "url": "https://www.emsc-csem.org/Earthquake_information/earthquake.php?id=2075539"
              },
              "window_hours": 24
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "method": {
                  "enum": [
                    "GET"
                  ],
                  "type": "string"
                },
                "queryParams": {
                  "properties": {
                    "hours": {
                      "description": "optional look-back 1-168 hours (default 24)",
                      "type": "string"
                    },
                    "minmag": {
                      "description": "optional minimum magnitude 0-9.5 (default 4.5)",
                      "type": "string"
                    }
                  },
                  "type": "object"
                },
                "type": {
                  "const": "http",
                  "type": "string"
                }
              },
              "required": [
                "type",
                "method"
              ],
              "type": "object"
            },
            "output": {
              "properties": {
                "example": {
                  "properties": {
                    "earthquakes": {
                      "type": "array"
                    },
                    "min_magnitude": {
                      "description": "Min magnitude",
                      "type": "number"
                    },
                    "returned": {
                      "description": "Number of items in this response",
                      "type": "number"
                    },
                    "source": {
                      "description": "Data source the values come from",
                      "type": "string"
                    },
                    "strongest": {
                      "type": "object"
                    },
                    "window_hours": {
                      "description": "Window, in hours",
                      "type": "number"
                    }
                  },
                  "required": [
                    "earthquakes"
                  ],
                  "type": "object"
                },
                "type": {
                  "const": "json",
                  "type": "string"
                }
              },
              "required": [
                "type"
              ],
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      }
    },
    "iconUrl": "https://res.cloudinary.com/bdb-prod/image/upload/c_fill,ar_1:1,w_256,h_256,f_auto,q_auto/v1791811517/bazaar-icons/bc5e2b3d111ebbef.jpg",
    "lastUpdated": "2026-10-19T23:59:14.843Z",
    "quality": {
      "l30DaysTotalCalls": 2,
      "l30DaysUniquePayers": 2,
      "lastCalledAt": "2026-10-19T23:59:14.384Z"
    },
    "resource": "https://saylorinnovations.com/api/hazards/emsc-quakes",
    "serviceName": "Saylor Innovations Data Desk",
    "tags": [
      "earthquakes worldwide today",
      "emsc latest earthquakes",
      "magnitude 5 earthquakes",
      "seismic events with region",
      "euro mediterranean earthquakes"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Worldwide earthquakes from the EMSC for the last 1-168 hours at or above a minimum magnitude - region, depth, coordinates, agency and the strongest event"
}

What the leaf hashes

{"body":"d56b3aeb6fccd473137eab87d94364e31ccdfa3ce91ed3213d249f8d4000d3fb","id":119985,"kind":"listing","method":"baseline/1","observed_us":1793025617036699,"prev":null,"subject":"x402_bazaar:https://saylorinnovations.com/api/hazards/emsc-quakes","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. 0x612b324e0e0f668d694d833a57521a3d5e648d878a7fbc0fb0fc914d5d8838d0
  2. 0xc3f35d2659b933a6859609c63a2d12ad59091b5fa245e1d93c92c92918e888e2
  3. 0x32b77464b17bac75e7a8fff866adc474f40688de481861e6a0331974b2e23b3d
  4. 0x52d9eddf525e65b88c60946d3f802a53b9bdc533e8c18f74a1b58ed42f4b96e2
  5. 0xa740da04e6c1bce44e7cef93a8922b8881adb159cc149152a8eb88d8c8fb96a2
  6. 0x278bc0769ad9bd9b4d7c071735eb4d2330c9fbbb4cb217c2899d7a99298291e7
  7. 0xbf4e0e23143df37bb8964d4734287805e79a0a70c8bbda18a9180c565ce69317
  8. 0xaefe332113201cb816d74994a30cf3a175f5786c155884fcdfb430d2b109cbe9
  9. 0x23d47664fa94c7855ae00ca65c51f506eeae8b0db1df0269cdac5186318cdff3
  10. 0xe260b2e40b95bbf4bea407155c3f0fd2821a2b48a48010e119c9c3a25f20adb5
  11. 0x52877ea072e10a1d3a921f7b54362005ad7a9baf5c99f31ec73a534bfea8930d
  12. 0xf4e3bedc99674db9d8ab4bc7655992ec76f822b327e6c89599b0baa3756fbd19
  13. 0x89fcaf55e37dd777228f271b79ea895534a66ec0d184363c2a6eb1b4d23c9ef1
  14. 0x216cebb9ae5414599109a02297c4817d7d1c6b1394afeb97efe38e32f0053974
  15. 0x7726154b91b2ad65b13849ef6cb6443b1f0ff113a3089c9bd5f2bcfc16be099d
  16. 0x47b89901b0f07938a6b9a66ddf35683903f79d756a7c7763665fd632758b08d0
  17. 0x9a83be955a206deb65b995adfd92c58fa31c95fbbf926bd199d300e70b08b26d
  18. 0x20704208aa6923d6b2450ef74ede87a6e0265d46447926038fe9506e9e154b2d
  19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a
Day root
0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8
Chained
0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a
Published
On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae

How to check it · This row as JSON