← The evidence ledger
Evidence row 119986
Observed , by baseline/1.
- Kind
- listing
- About
- source_record x402_bazaar:https://saylorinnovations.com/api/hazards/italy-earthquakes
- Recorded
- Previous row
- None: the first of its kind about this subject
- Body SHA-256
- 68837b27b07426ca230dc3116d07924f89a0ec5de66f2db9cc0e345f1cd9fafa
- Leaf
- 0x0ae44ce5999d7bc6517c994da0bed5f67d61b1de7b02acdf87d848f4e031a064
What was observed
{
"endpoints": [
[
"x402",
"https://saylorinnovations.com/api/hazards/italy-earthquakes"
]
],
"name": "Saylor Innovations Data Desk",
"owner_address": "0xa2a8df0f7caabea4e120a2568118f141569fc8aa",
"raw": {
"accepts": [
{
"amount": "10000",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"assetTransferMethod": "eip3009",
"facilitatorOnly": true,
"memo": "saylor:datadesk:ingv-italy-earth",
"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:ingv-italy-earth",
"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:ingv-italy-earth",
"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": "GVJJ7rdGiXr5xaYbRwRbjfaJL7fmwRygFi1H6aGqDveb",
"memo": "saylor:datadesk:ingv-italy-earth",
"reference": "HD24Ac7HmaB7SdY9hJa4AAaB5CNwospHEhdLU7hhYven",
"session": "eyJhcnRpY2xlSWQiOiJkYXRhZGVzazppbmd2LWl0YWx5LWVhcnRocXVha2VzIiwicmVmZXJlbmNlIjoiSEQyNEFjN0htYUI3U2RZOWhKYTRBQWFCNUNOd29zcEhFaGRMVTdoaFl2ZW4iLCJyZWNpcGllbnQiOiI3TFNqZnJKZjhmTnNCOFZBOXU3TjNXRW4yNXNtUUxwb2IzU3Z5VXZYYWN5NyIsIm1pbnQiOiJFUGpGV2RkNUF1ZnFTU3FlTTJxTjF4enliYXBDOEc0d0VHR2tad3lURHQxdiIsIm1pbkFtb3VudCI6MTAwMDAsImV4cCI6MTc5MjU2MzU2MzUzNn0.Y6J3-BHmmRq3GGyzbShECVgtQ11YOE5sRH4D3XvZDb4"
},
"maxTimeoutSeconds": 120,
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
"scheme": "exact"
},
{
"amount": "10000",
"asset": "Es9vMFrzaCERmJfrF4H2FYD4KCoNkY11McCe8BenwNYB",
"extra": {
"feePayer": "GVJJ7rdGiXr5xaYbRwRbjfaJL7fmwRygFi1H6aGqDveb",
"memo": "saylor:datadesk:ingv-italy-earth",
"reference": "DVW2sg8zWQcmRXUnabnbikuPEpvoYQctBYygDPu2pSnU",
"session": "eyJhcnRpY2xlSWQiOiJkYXRhZGVzazppbmd2LWl0YWx5LWVhcnRocXVha2VzIiwicmVmZXJlbmNlIjoiRFZXMnNnOHpXUWNtUlhVbmFibmJpa3VQRXB2b1lRY3RCWXlnRFB1MnBTblUiLCJyZWNpcGllbnQiOiI3TFNqZnJKZjhmTnNCOFZBOXU3TjNXRW4yNXNtUUxwb2IzU3Z5VXZYYWN5NyIsIm1pbnQiOiJFczl2TUZyemFDRVJtSmZyRjRIMkZZRDRLQ29Oa1kxMU1jQ2U4QmVud05ZQiIsIm1pbkFtb3VudCI6MTAwMDAsImV4cCI6MTc5MjU2MzU2MzUzNn0.qcfjBWaGcb6pHC4MU-fyrHKl2VrNUYL5twIFn2gKlxc"
},
"maxTimeoutSeconds": 120,
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
"scheme": "exact"
},
{
"amount": "91847",
"asset": "So11111111111111111111111111111111111111112",
"extra": {
"memo": "saylor:datadesk:ingv-italy-earth",
"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": "94688",
"reference": "9mZxX5X5HLhVixRWgspn7KxHecB112AckjcVHPX7PWUc",
"session": "eyJhcnRpY2xlSWQiOiJkYXRhZGVzazppbmd2LWl0YWx5LWVhcnRocXVha2VzIiwicmVmZXJlbmNlIjoiOW1aeFg1WDVITGhWaXhSV2dzcG43S3hIZWNCMTEyQWNramNWSFBYN1BXVWMiLCJyZWNpcGllbnQiOiI3TFNqZnJKZjhmTnNCOFZBOXU3TjNXRW4yNXNtUUxwb2IzU3Z5VXZYYWN5NyIsIm1pbnQiOm51bGwsIm1pbkFtb3VudCI6OTE4NDcsImV4cCI6MTc5MjU2MzU2MzUzNn0.U9Zx4FDePa5XiGJpGP1AhzTarGiflaxoYGHcj1iizzE",
"solUsdPrice": 105.61
},
"maxTimeoutSeconds": 120,
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
"scheme": "exact"
}
],
"description": "Latest Italian earthquakes from INGV - time, magnitude and type, depth, coordinates and place, filterable by minimum magnitude and lookback hours",
"extensions": {
"bazaar": {
"info": {
"input": {
"method": "GET",
"queryParams": {
"hours": "72",
"limit": "5",
"min_mag": "1.5"
},
"type": "http"
},
"output": {
"example": {
"count": 5,
"earthquakes": [
{
"depth_km": 10.1,
"event_id": 47558552,
"lat": 45.8538,
"lon": 7.0592,
"magnitude": 1.8,
"magnitude_type": "ML",
"place": "9 km NE Courmayeur (AO)",
"time": "2026-10-17T10:41:47Z",
"type": "earthquake"
},
{
"depth_km": 12.8,
"event_id": 47557782,
"lat": 38.441,
"lon": 15.038,
"magnitude": 1.5,
"magnitude_type": "ML",
"place": "Isole Eolie (Messina)",
"time": "2026-10-17T08:31:18Z",
"type": "earthquake"
},
{
"depth_km": 8.6,
"event_id": 47557622,
"lat": 38.4425,
"lon": 15.0785,
"magnitude": 1.7,
"magnitude_type": "ML",
"place": "Isole Eolie (Messina)",
"time": "2026-10-17T08:31:18Z",
"type": "earthquake"
},
{
"depth_km": 10.6,
"event_id": 47557572,
"lat": 44.0688,
"lon": 12.8533,
"magnitude": 1.6,
"magnitude_type": "ML",
"place": "Costa Romagnola meridionale (Rimini, Forli-Cesena)",
"time": "2026-10-17T08:26:09Z",
"type": "earthquake"
},
{
"depth_km": 11.1,
"event_id": 47556912,
"lat": 39.2415,
"lon": 16.5863,
"magnitude": 1.7,
"magnitude_type": "ML",
"place": "10 km W San Giovanni in Fiore (CS)",
"time": "2026-10-17T07:07:43Z",
"type": "earthquake"
}
],
"min_magnitude": 1.5,
"source": "Istituto Nazionale di Geofisica e Vulcanologia (INGV), CC BY 4.0",
"window_hours": 72
},
"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 lookback 1-720, default 72",
"type": "string"
},
"limit": {
"description": "optional 1-25, default 10",
"type": "string"
},
"min_mag": {
"description": "optional minimum magnitude, default 1",
"type": "string"
}
},
"type": "object"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"properties": {
"count": {
"description": "Number of items returned",
"type": "number"
},
"earthquakes": {
"description": "Events with time, place, magnitude and type, depth, coordinates and INGV event id",
"type": "array"
},
"min_magnitude": {
"description": "Min magnitude",
"type": "number"
},
"source": {
"description": "Data source the values come from",
"type": "string"
},
"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": "2026-10-21T06:17:23.571Z",
"quality": {
"l30DaysTotalCalls": 2,
"l30DaysUniquePayers": 2,
"lastCalledAt": "2026-10-21T06:17:22.922Z"
},
"resource": "https://saylorinnovations.com/api/hazards/italy-earthquakes",
"serviceName": "Saylor Innovations Data Desk",
"tags": [
"latest earthquakes in italy",
"ingv recent seismic events",
"was there an earthquake near",
"italian earthquake magnitude",
"etna or campi flegrei quake"
],
"type": "http",
"x402Version": 2
},
"source": "x402_bazaar",
"summary": "Latest Italian earthquakes from INGV - time, magnitude and type, depth, coordinates and place, filterable by minimum magnitude and lookback hours"
}What the leaf hashes
{"body":"68837b27b07426ca230dc3116d07924f89a0ec5de66f2db9cc0e345f1cd9fafa","id":119986,"kind":"listing","method":"baseline/1","observed_us":1793025617038489,"prev":null,"subject":"x402_bazaar:https://saylorinnovations.com/api/hazards/italy-earthquakes","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).
- 0x0ae4057c02293222b0d6182c0a62a2b9ba34c32d8c6210cd2bd897d40771327d
- 0x37fb3bd320646012c0e2faaee85b7375e62c67c640dda03d991e32fb715f123e
- 0xc3abee3a02c97b70d8a5f691dcf68f0002f3047639d6ceab6f1788a74c79b47a
- 0xf6f073f8b3e006f252fb9c3f808b7f5216cc163cefbc190dceb2c903673192b1
- 0x6bb8d67724fe38835fe65bd3e0010676224d4a71beecc1d1fb1097f038afe350
- 0xc31566b6153cc37501702125368791abe08feb5921b6ee82089d7dd8b66e7002
- 0xbc77551bb637160e48af22bf27dd47e93b3a926ce0573147ea4ddb05ead005a3
- 0x986d2fe06b8b81a57d51ab3189d21d67c362f9ba178ffa9267c73e8349c27f93
- 0x77498903b431dc881134c9913a2221e7c930b2254600caebd182966a29d09a15
- 0x96dc6bd64fe78dd85e63b2a795828d2feea188bc55943b4d6ab1449dca715971
- 0xb590404cb9438c769f672be0f0089b46b380374a2b3728911a35efd8d94b6a83
- 0x0295c7c2280f85143f6ea027ec5cab1cda783eeef5bca0accb9aea607c5aa3c2
- 0x5aefcf9e3d86e125861c0d490079969110eea8fc901ec61531bba10bb58258a1
- 0xa96bb9408ce00a0d40ddaba8736257dfce76d5478b131d69db1afdf8a824312b
- 0x7ddc2fead128357f881b63e6c7c26d7fbbb84fca6c7c8e0bbfe386de86ca8d39
- 0xc6a4d7899a0f442958e26505011190b7cff2483611c1b94eba9043e0ba9ac36e
- 0x8c756542e482157df0c36464d75c937b845e4423dbbcfad08f0cf8d5a16b9a13
- 0x20704208aa6923d6b2450ef74ede87a6e0265d46447926038fe9506e9e154b2d
- 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a
- Day root
- 0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8
- Chained
- 0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a
- Published
- On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae