← The evidence ledger
Evidence row 119993
Observed , by baseline/1.
- Kind
- listing
- About
- source_record x402_bazaar:https://saylorinnovations.com/api/hazards/volcano-status
- Recorded
- Previous row
- None: the first of its kind about this subject
- Body SHA-256
- 2b1ad7f8e6e0eb3676e62d174fff1e99960528ec371f220db2a05988f9c4c14b
- Leaf
- 0xd65e7fa3f15278697c99c1bbc44c4067780ef8beecdb1cc49b0f1631a24a9644
What was observed
{
"endpoints": [
[
"x402",
"https://saylorinnovations.com/api/hazards/volcano-status"
]
],
"name": "Saylor Innovations Data Desk",
"owner_address": "0xa2a8df0f7caabea4e120a2568118f141569fc8aa",
"raw": {
"accepts": [
{
"amount": "10000",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"assetTransferMethod": "eip3009",
"facilitatorOnly": true,
"memo": "saylor:datadesk:usgs-volcano-sta",
"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:usgs-volcano-sta",
"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:usgs-volcano-sta",
"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": "D6ZhtNQ5nT9ZnTHUbqXZsTx5MH2rPFiBBggX4hY1WePM",
"memo": "saylor:datadesk:usgs-volcano-sta",
"reference": "E1Sj6BV5ukceRMp8SKTmYucJmsCGM5xmUux56L61KjPy",
"session": "eyJhcnRpY2xlSWQiOiJkYXRhZGVzazp1c2dzLXZvbGNhbm8tc3RhdHVzIiwicmVmZXJlbmNlIjoiRTFTajZCVjV1a2NlUk1wOFNLVG1ZdWNKbXNDR001eG1VdXg1Nkw2MUtqUHkiLCJyZWNpcGllbnQiOiI3TFNqZnJKZjhmTnNCOFZBOXU3TjNXRW4yNXNtUUxwb2IzU3Z5VXZYYWN5NyIsIm1pbnQiOiJFUGpGV2RkNUF1ZnFTU3FlTTJxTjF4enliYXBDOEc0d0VHR2tad3lURHQxdiIsIm1pbkFtb3VudCI6MTAwMDAsImV4cCI6MTc5MjU3MzE1MjkwNH0.5zHUdpTM3mniExF5pDW27pJBHD-GQ_Li_mKO5USkEFY"
},
"maxTimeoutSeconds": 120,
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
"scheme": "exact"
},
{
"amount": "10000",
"asset": "Es9vMFrzaCERmJfrF4H2FYD4KCoNkY11McCe8BenwNYB",
"extra": {
"feePayer": "D6ZhtNQ5nT9ZnTHUbqXZsTx5MH2rPFiBBggX4hY1WePM",
"memo": "saylor:datadesk:usgs-volcano-sta",
"reference": "2nnW7tthXwivZUom6XMzHLJQAkySy6utngs6hZ1zxxDt",
"session": "eyJhcnRpY2xlSWQiOiJkYXRhZGVzazp1c2dzLXZvbGNhbm8tc3RhdHVzIiwicmVmZXJlbmNlIjoiMm5uVzd0dGhYd2l2WlVvbTZYTXpITEpRQWt5U3k2dXRuZ3M2aFoxenh4RHQiLCJyZWNpcGllbnQiOiI3TFNqZnJKZjhmTnNCOFZBOXU3TjNXRW4yNXNtUUxwb2IzU3Z5VXZYYWN5NyIsIm1pbnQiOiJFczl2TUZyemFDRVJtSmZyRjRIMkZZRDRLQ29Oa1kxMU1jQ2U4QmVud05ZQiIsIm1pbkFtb3VudCI6MTAwMDAsImV4cCI6MTc5MjU3MzE1MjkwNH0.E6ekJ_L03iEeB6TOK13bjrb-ByikuZLTc5TEDhDhFac"
},
"maxTimeoutSeconds": 120,
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
"scheme": "exact"
},
{
"amount": "90968",
"asset": "So11111111111111111111111111111111111111112",
"extra": {
"memo": "saylor:datadesk:usgs-volcano-sta",
"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": "93782",
"reference": "G8kP6TiN8j5VQEMLKR41ww4qUe5fUbQLhwZqGfwjxnN2",
"session": "eyJhcnRpY2xlSWQiOiJkYXRhZGVzazp1c2dzLXZvbGNhbm8tc3RhdHVzIiwicmVmZXJlbmNlIjoiRzhrUDZUaU44ajVWUUVNTEtSNDF3dzRxVWU1ZlViUUxod1pxR2Z3anhuTjIiLCJyZWNpcGllbnQiOiI3TFNqZnJKZjhmTnNCOFZBOXU3TjNXRW4yNXNtUUxwb2IzU3Z5VXZYYWN5NyIsIm1pbnQiOm51bGwsIm1pbkFtb3VudCI6OTA5NjgsImV4cCI6MTc5MjU3MzE1MjkwNH0.X36GAkMI5Q0x-6FboE5h_0r2RmAmAvyg9Qg8sKe57bo",
"solUsdPrice": 106.63
},
"maxTimeoutSeconds": 120,
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
"scheme": "exact"
}
],
"description": "US volcano alert levels and aviation color codes now from USGS - Normal, Advisory, Watch or Warning with synopsis, region and observatory",
"extensions": {
"bazaar": {
"info": {
"input": {
"method": "GET",
"queryParams": {
"level": "advisory"
},
"type": "http"
},
"output": {
"example": {
"by_alert_level": {
"ADVISORY": 2,
"NORMAL": 62,
"UNASSIGNED": 95,
"WATCH": 2
},
"count": 2,
"filter": {
"level": "ADVISORY",
"region": null
},
"monitored": 161,
"source": "USGS Volcano Hazards Program (public domain)",
"volcanoes": [
{
"alert_date": "2026-10-15 23:34:00",
"alert_level": "ADVISORY",
"aviation_color_code": "YELLOW",
"lat": 20.437,
"lon": 145.03,
"name": "Ahyi Seamount",
"observatory": "NMI",
"region": "Northern Mariana Islands",
"synopsis": "NMI Ahyi Seamount YELLOW/ADVISORY - Plumes of discolored water seen in satellite imagery; no significant geophysical signals.",
"url": "https://www.usgs.gov/volcanoes/ahyi-seamount"
},
{
"alert_date": "2026-10-16 19:14:32",
"alert_level": "ADVISORY",
"aviation_color_code": "YELLOW",
"lat": 54.7554,
"lon": -163.9711,
"name": "Shishaldin",
"observatory": "AVO",
"region": "Aleutians",
"synopsis": "AVO Shishaldin YELLOW/ADVISORY - Unrest continues with small earthquakes, tremor, and gas emissions.",
"url": "https://avo.alaska.edu/activity/Shishaldin.php"
}
]
},
"type": "json"
}
},
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"method": {
"enum": [
"GET"
],
"type": "string"
},
"queryParams": {
"properties": {
"level": {
"description": "optional alert level: warning, watch, advisory, normal, unassigned",
"type": "string"
}
},
"type": "object"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"properties": {
"by_alert_level": {
"description": "By alert level",
"type": "object"
},
"count": {
"description": "Number of items returned",
"type": "number"
},
"filter": {
"description": "Filters applied",
"type": "object"
},
"monitored": {
"description": "Number of volcanoes monitored",
"type": "number"
},
"source": {
"description": "Data source the values come from",
"type": "string"
},
"volcanoes": {
"description": "Volcanoes with name, region, observatory, alert level, colour code, alert date, synopsis and location",
"items": {
"properties": {
"alert_date": {
"description": "Alert date"
},
"alert_level": {
"description": "Alert level"
},
"aviation_color_code": {
"description": "Aviation color code"
},
"lat": {
"description": "Latitude in decimal degrees"
},
"lon": {
"description": "Longitude in decimal degrees"
},
"name": {
"description": "Name"
},
"observatory": {
"description": "Monitoring observatory",
"type": [
"string",
"null"
]
},
"region": {
"description": "Region"
},
"synopsis": {
"description": "Current status summary",
"type": [
"string",
"null"
]
},
"url": {
"description": "Canonical URL"
}
},
"type": "object"
},
"type": "array"
}
},
"required": [
"monitored",
"volcanoes"
],
"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": "2026-10-21T08:57:12.94Z",
"quality": {
"l30DaysTotalCalls": 2,
"l30DaysUniquePayers": 2,
"lastCalledAt": "2026-10-21T08:57:12.352Z"
},
"resource": "https://saylorinnovations.com/api/hazards/volcano-status",
"serviceName": "Saylor Innovations Data Desk",
"tags": [
"which us volcanoes are erupting",
"kilauea alert level",
"volcano aviation color code now",
"usgs volcano watch or warning",
"alaska volcano status"
],
"type": "http",
"x402Version": 2
},
"source": "x402_bazaar",
"summary": "US volcano alert levels and aviation color codes now from USGS - Normal, Advisory, Watch or Warning with synopsis, region and observatory"
}What the leaf hashes
{"body":"2b1ad7f8e6e0eb3676e62d174fff1e99960528ec371f220db2a05988f9c4c14b","id":119993,"kind":"listing","method":"baseline/1","observed_us":1793025617052216,"prev":null,"subject":"x402_bazaar:https://saylorinnovations.com/api/hazards/volcano-status","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).
- 0xd65e9fb432a41e8f682dfc758a9d71cc9167c46044df0732baa65b38a2b36e6f
- 0x3d9d1e9fd8b6c603f988e9134216ac78900ead0df12e4709646a1c13df5c51f0
- 0xfbf1bb44ed12cdb0a3726f2ef490b3d5896527506c1648e3da43c08ddde3686a
- 0x0b4573d877d890aa0c1c797299d85335de111a092d020544cda66746e622455d
- 0x5256e1f5348820c69f50798fdbbb4194ab7d59c7c37a17e6341afb9048fee8f1
- 0x9264de7a807e135eb655730a224ac7e42d63ae1075933c997598dcd9e0ad0526
- 0x9bc6cb25990e9c93855124b3a1c9d665af7301e8c30c6174f08e12ab9da7d7f1
- 0xc2d8cfde6526c0b57b51b09f32e26bde73e40cb36b693454c2969aca36d202ee
- 0xf18069e17c709278da28b5dbf32fb020e6f8de9fcde781a4053c6d11a6187ed2
- 0xd674ac2fe1839ab692c41b1af133cd0e1cb5d650355a3245c77aea56bcfe188f
- 0x993ee5fd278bf116928331fbf1ccabe7ebb40d4f5e12235f09eee4dcb29676aa
- 0x39d84ffb833c94bfff15760ea7da987f5303e407884de386d5a33b2328c7d785
- 0x3199db04c2c73c3483386a86bf503eafde5af103465608156e2e5f42e72a6fbe
- 0x6b927d53caa5125cdba9255612d524976c691f8672796c3f0885ba2c5b3af1ad
- 0x6dc40f983a3840a0ad927a9ca17f4ff1e3b649a6c735e2a09b140db7c2caf13b
- 0x703f95866af09c5e5d6ead7411e9a10f964a41a2aff64d4a55ff0053c023a023
- 0xd0651cb9bc8155eb52b5247d506e74b8a935057dc190ba52091702ac25ed3a40
- 0x9a9024edb5069d88a324facb310a5ce8e495214bbaa968f077bede437390194f
- 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a
- Day root
- 0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8
- Chained
- 0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a
- Published
- On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae