← The evidence ledger
Evidence row 68521
Observed , by sync.x402_bazaar/1.
- Kind
- listing
- About
- source_record x402_bazaar:https://saylorinnovations.com/api/farm/growing-degree-days
- Recorded
- Previous row
- None: the first of its kind about this subject
- Body SHA-256
- 57bff54c5ec4ffd9985a6792b78c77acf17df072fc0a365f451e57e17d1feb76
- Leaf
- 0x1084c61dd10e5a37053b8f2dedaf1dc3b62c18a0796d900f906b34949c3ae1bd
What was observed
{
"endpoints": [
[
"x402",
"https://saylorinnovations.com/api/farm/growing-degree-days"
]
],
"name": "Saylor Innovations Growing Degr",
"owner_address": "0xa2a8df0f7caabea4e120a2568118f141569fc8aa",
"raw": {
"accepts": [
{
"amount": "10000",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"assetTransferMethod": "eip3009",
"facilitatorOnly": true,
"memo": "saylor:farm:growing-degree-days",
"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:farm:growing-degree-days",
"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:farm:growing-degree-days",
"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:farm:growing-degree-days",
"reference": "HnpBSfnn3zGhV1LFRcxTYbhXVacH17zAjmRK84q5Behp",
"session": "eyJhcnRpY2xlSWQiOiJmYXJtOmdyb3dpbmctZGVncmVlLWRheXMiLCJyZWZlcmVuY2UiOiJIbnBCU2ZubjN6R2hWMUxGUmN4VFliaFhWYWNIMTd6QWptUks4NHE1QmVocCIsInJlY2lwaWVudCI6IjdMU2pmckpmOGZOc0I4VkE5dTdOM1dFbjI1c21RTHBvYjNTdnlVdlhhY3k3IiwibWludCI6IkVQakZXZGQ1QXVmcVNTcWVNMnFOMXh6eWJhcEM4RzR3RUdHa1p3eVREdDF2IiwibWluQW1vdW50IjoxMDAwMCwiZXhwIjoxNzkyOTk2NjUzMjkzfQ.KFa4ewnw_AmWAsDjSsObgeW8kEhAPad6Jgh4ccr4t8E"
},
"maxTimeoutSeconds": 120,
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
"scheme": "exact"
},
{
"amount": "10000",
"asset": "Es9vMFrzaCERmJfrF4H2FYD4KCoNkY11McCe8BenwNYB",
"extra": {
"feePayer": "GVJJ7rdGiXr5xaYbRwRbjfaJL7fmwRygFi1H6aGqDveb",
"memo": "saylor:farm:growing-degree-days",
"reference": "GcQGvYKSJGeSvAv2kSAHa36oLK5fCUJCBcFBJZbzwgY3",
"session": "eyJhcnRpY2xlSWQiOiJmYXJtOmdyb3dpbmctZGVncmVlLWRheXMiLCJyZWZlcmVuY2UiOiJHY1FHdllLU0pHZVN2QXYya1NBSGEzNm9MSzVmQ1VKQ0JjRkJKWmJ6d2dZMyIsInJlY2lwaWVudCI6IjdMU2pmckpmOGZOc0I4VkE5dTdOM1dFbjI1c21RTHBvYjNTdnlVdlhhY3k3IiwibWludCI6IkVzOXZNRnJ6YUNFUm1KZnJGNEgyRllENEtDb05rWTExTWNDZThCZW53TllCIiwibWluQW1vdW50IjoxMDAwMCwiZXhwIjoxNzkyOTk2NjUzMjkzfQ.WeIMESSeNYrKYexmtK4l6_GpBHW84oN8A2WnUSCUsSI"
},
"maxTimeoutSeconds": 120,
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
"scheme": "exact"
},
{
"amount": "96277",
"asset": "So11111111111111111111111111111111111111112",
"extra": {
"memo": "saylor:farm:growing-degree-days",
"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": "99255",
"reference": "CtPghkW7NT54wzVu6R7MqMYxGhTrYni15Q8uTtrdAK6z",
"session": "eyJhcnRpY2xlSWQiOiJmYXJtOmdyb3dpbmctZGVncmVlLWRheXMiLCJyZWZlcmVuY2UiOiJDdFBnaGtXN05UNTR3elZ1NlI3TXFNWXhHaFRyWW5pMTVROHVUdHJkQUs2eiIsInJlY2lwaWVudCI6IjdMU2pmckpmOGZOc0I4VkE5dTdOM1dFbjI1c21RTHBvYjNTdnlVdlhhY3k3IiwibWludCI6bnVsbCwibWluQW1vdW50Ijo5NjI3NywiZXhwIjoxNzkyOTk2NjUzMjkzfQ.tS0xfWCmTAXXAjmqGxxD3xHNrRTVjjF9sJ_nS2cbmyg",
"solUsdPrice": 100.75
},
"maxTimeoutSeconds": 120,
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
"scheme": "exact"
}
],
"description": "GDD to date vs normal, crop stage projections and pre-freeze maturity odds",
"extensions": {
"bazaar": {
"info": {
"input": {
"method": "GET",
"queryParams": {
"crop": "corn",
"lat": "41.6",
"lon": "-93.6",
"planting_date": "2026-05-05"
},
"type": "http"
},
"output": {
"example": {
"crop": "Field corn",
"gdd_accumulated": 2480,
"stages": [
{
"gdd": 1400,
"reached": "2026-07-12",
"stage": "R1 silking"
}
],
"vs_normal": {
"days_ahead": 4,
"gdd_difference": 95
}
},
"type": "json"
}
},
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"method": {
"enum": [
"GET"
],
"type": "string"
},
"queryParams": {
"properties": {
"crop": {
"description": "optional corn, sweet_corn, sorghum, cotton, soybean or tomato; default corn (query)",
"type": "string"
},
"lat": {
"description": "required latitude (query)",
"type": "string"
},
"lon": {
"description": "required longitude (query)",
"type": "string"
},
"planting_date": {
"description": "optional YYYY-MM-DD; default Jan 1 of this year (query)",
"type": "string"
}
},
"required": [
"lat",
"lon"
],
"type": "object"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"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/v1792548358/bazaar-icons/bc5e2b3d111ebbef.jpg",
"lastUpdated": "2026-10-26T06:35:33.334Z",
"quality": {
"l30DaysTotalCalls": 1,
"l30DaysUniquePayers": 1,
"lastCalledAt": "2026-10-26T06:35:32.899Z"
},
"resource": "https://saylorinnovations.com/api/farm/growing-degree-days",
"serviceName": "Saylor Innovations Growing Degr",
"tags": [
"agriculture",
"farm",
"weather",
"gdd",
"frost"
],
"type": "http",
"x402Version": 2
},
"source": "x402_bazaar",
"summary": "GDD to date vs normal, crop stage projections and pre-freeze maturity odds"
}What the leaf hashes
{"body":"57bff54c5ec4ffd9985a6792b78c77acf17df072fc0a365f451e57e17d1feb76","id":68521,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793025466804065,"prev":null,"subject":"x402_bazaar:https://saylorinnovations.com/api/farm/growing-degree-days","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).
- 0x108505ead337e169a08bf6c3b07b744669bd89cd16ed01ad6550c906c6645d39
- 0x6873f1ce196ad71d5a781057fb6db148a0fe1b09a71ab831942e12a80ccb4cdb
- 0x66d2f791ed1f0fe0b450fa9dde6092a38475b48ff16be90f4c229462794cb32c
- 0x5a3c73eb4362d86a2c7ccdeae44629dc37232c3e83e731e933a73e52e0a717f2
- 0x75836fc0b4c19b9fb57efeb533d2eb65af0b9d9a82eb22b48db3e6141ec8aaaa
- 0x9181e3dcd7ff064423c2bebfcb9df77c69c7fd687fd0863112d9e013b8c59b83
- 0xc700551076927bf2f3f9442a4f4179c266427a3a6b5d123309fbcfa983c9a653
- 0xc9685f4fd395267631de22508b369c78928fc2a75baf01a4802703770433a14d
- 0xc78969e1448b4e00b22c1b3dc7e51f8123c9e7092baaaedc96ecfaebe34d69e7
- 0x966bf10795d50c9f81eb3c272b7279beecfe723480c50bbb3c87bcd23b5cd5b5
- 0x27ff2940d5376ec3cc70015c126b688bae838938b2846686279ceb190eb69456
- 0xc02d9eff6ef94d46d90d54320548f18fc3f05787047265548577569253c19969
- 0x294f7935f78a896b5f246a7c9a7ee1b023720acdb03fff3cd549c63479848ec9
- 0xb49e8c2564256e5322e375cb619d9ac70fd17c1d1eba9c991bba4cb6428f45cc
- 0x60582ab4b41e72eb70eb0bce07fbf0fb4d2b62a8bad5be50f5d16d511adc746c
- 0xc6a4d7899a0f442958e26505011190b7cff2483611c1b94eba9043e0ba9ac36e
- 0x8c756542e482157df0c36464d75c937b845e4423dbbcfad08f0cf8d5a16b9a13
- 0x20704208aa6923d6b2450ef74ede87a6e0265d46447926038fe9506e9e154b2d
- 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a
- Day root
- 0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8
- Chained
- 0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a
- Published
- On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae