← The evidence ledger
Evidence row 119678
Observed , by baseline/1.
- Kind
- listing
- About
- source_record x402_bazaar:https://saylorinnovations.com/api/econ/imf
- Recorded
- Previous row
- None: the first of its kind about this subject
- Body SHA-256
- 65b5c249c09c2224a75927f34554dd3cc2712ee51d49afcfe9ddcdd6781a489d
- Leaf
- 0xaf88296798a477eb79be34c67e0e0d8266910486ff428c2b6ff5a8d12b341f15
What was observed
{
"endpoints": [
[
"x402",
"https://saylorinnovations.com/api/econ/imf"
]
],
"name": "Saylor Innovations Data Desk",
"owner_address": "0xa2a8df0f7caabea4e120a2568118f141569fc8aa",
"raw": {
"accepts": [
{
"amount": "10000",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"assetTransferMethod": "eip3009",
"facilitatorOnly": true,
"memo": "saylor:datadesk:imf-indicator",
"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:imf-indicator",
"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:imf-indicator",
"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": "Hc3sdEAsCGQcpgfivywog9uwtk8gUBUZgsxdME1EJy88",
"memo": "saylor:datadesk:imf-indicator",
"reference": "6ME1JkXqRJpYHmthUDwS1hKTmpXA2BoQWDvwzq6mmenR",
"session": "eyJhcnRpY2xlSWQiOiJkYXRhZGVzazppbWYtaW5kaWNhdG9yIiwicmVmZXJlbmNlIjoiNk1FMUprWHFSSnBZSG10aFVEd1MxaEtUbXBYQTJCb1FXRHZ3enE2bW1lblIiLCJyZWNpcGllbnQiOiI3TFNqZnJKZjhmTnNCOFZBOXU3TjNXRW4yNXNtUUxwb2IzU3Z5VXZYYWN5NyIsIm1pbnQiOiJFUGpGV2RkNUF1ZnFTU3FlTTJxTjF4enliYXBDOEc0d0VHR2tad3lURHQxdiIsIm1pbkFtb3VudCI6MTAwMDAsImV4cCI6MTc5MjQyODU2OTE3M30.KTCXEqImXDiM0Siey_JRl6-n6KkpNwnr4jwu6bfMKkc"
},
"maxTimeoutSeconds": 120,
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
"scheme": "exact"
},
{
"amount": "10000",
"asset": "Es9vMFrzaCERmJfrF4H2FYD4KCoNkY11McCe8BenwNYB",
"extra": {
"feePayer": "Hc3sdEAsCGQcpgfivywog9uwtk8gUBUZgsxdME1EJy88",
"memo": "saylor:datadesk:imf-indicator",
"reference": "9rLJg2pMWBQHeWyTKof7grr6ELjrqxhjhbdsrC1SqGaB",
"session": "eyJhcnRpY2xlSWQiOiJkYXRhZGVzazppbWYtaW5kaWNhdG9yIiwicmVmZXJlbmNlIjoiOXJMSmcycE1XQlFIZVd5VEtvZjdncnI2RUxqcnF4aGpoYmRzckMxU3FHYUIiLCJyZWNpcGllbnQiOiI3TFNqZnJKZjhmTnNCOFZBOXU3TjNXRW4yNXNtUUxwb2IzU3Z5VXZYYWN5NyIsIm1pbnQiOiJFczl2TUZyemFDRVJtSmZyRjRIMkZZRDRLQ29Oa1kxMU1jQ2U4QmVud05ZQiIsIm1pbkFtb3VudCI6MTAwMDAsImV4cCI6MTc5MjQyODU2OTE3M30.h4Q89tcBWe-hPojSOSs8AtNr4xZ5JQrcDQU20icQbjM"
},
"maxTimeoutSeconds": 120,
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
"scheme": "exact"
},
{
"amount": "92875",
"asset": "So11111111111111111111111111111111111111112",
"extra": {
"memo": "saylor:datadesk:imf-indicator",
"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": "95748",
"reference": "3S17cmjWfkqDTVZCRxF1MxLzyS1DEuYPrSjtmQhTjAX7",
"session": "eyJhcnRpY2xlSWQiOiJkYXRhZGVzazppbWYtaW5kaWNhdG9yIiwicmVmZXJlbmNlIjoiM1MxN2Ntaldma3FEVFZaQ1J4RjFNeEx6eVMxREV1WVByU2p0bVFoVGpBWDciLCJyZWNpcGllbnQiOiI3TFNqZnJKZjhmTnNCOFZBOXU3TjNXRW4yNXNtUUxwb2IzU3Z5VXZYYWN5NyIsIm1pbnQiOm51bGwsIm1pbkFtb3VudCI6OTI4NzUsImV4cCI6MTc5MjQyODU2OTE3M30.VNIlhLAKIKOKv6Ccn47J48u4PgM-3cSYU8MUkpRjzII",
"solUsdPrice": 104.44
},
"maxTimeoutSeconds": 120,
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
"scheme": "exact"
}
],
"description": "IMF World Economic Outlook indicators by country or ranked worldwide - GDP growth, inflation, unemployment, debt and current account with forecast years",
"extensions": {
"bazaar": {
"info": {
"input": {
"method": "GET",
"queryParams": {
"country": "USA",
"indicator": "NGDP_RPCH"
},
"type": "http"
},
"output": {
"example": {
"country": "USA",
"dataset": "World Economic Outlook (October 2026)",
"indicator": "NGDP_RPCH",
"label": "Real GDP growth",
"latest_actual": {
"projection": false,
"value": 2.3,
"year": 2025
},
"series": [
{
"projection": false,
"value": 2.5,
"year": 2017
},
{
"projection": false,
"value": 3,
"year": 2018
},
{
"projection": false,
"value": 2.6,
"year": 2019
},
{
"projection": false,
"value": -2.1,
"year": 2020
},
{
"projection": false,
"value": 6.3,
"year": 2021
},
{
"projection": false,
"value": 2.4,
"year": 2022
},
{
"projection": false,
"value": 2.9,
"year": 2023
},
{
"projection": false,
"value": 3,
"year": 2024
},
{
"projection": false,
"value": 2.3,
"year": 2025
},
{
"projection": true,
"value": 2.3,
"year": 2026
},
{
"projection": true,
"value": 2.3,
"year": 2027
},
{
"projection": true,
"value": 2.1,
"year": 2028
},
{
"projection": true,
"value": 1.9,
"year": 2029
},
{
"projection": true,
"value": 1.8,
"year": 2030
},
{
"projection": true,
"value": 1.8,
"year": 2031
}
],
"source": "IMF DataMapper / World Economic Outlook",
"unit": "Annual percent change"
},
"type": "json"
}
},
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"method": {
"enum": [
"GET"
],
"type": "string"
},
"queryParams": {
"properties": {
"country": {
"description": "optional ISO3-style code such as USA, DEU, CHN (omit for a cross-country ranking)",
"type": "string"
},
"indicator": {
"description": "IMF code, e.g. NGDP_RPCH (GDP growth), PCPIPCH (inflation), LUR (unemployment), NGDPD (GDP USD bn)",
"type": "string"
}
},
"required": [
"indicator"
],
"type": "object"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"properties": {
"bottom": {
"type": "array"
},
"countries": {
"description": "Countries",
"type": "number"
},
"country": {
"description": "Country name",
"type": "string"
},
"dataset": {
"type": [
"string",
"null"
]
},
"indicator": {
"description": "Indicator code",
"type": "string"
},
"label": {
"description": "Human-readable label",
"type": "string"
},
"latest_actual": {
"description": "Latest actual",
"type": [
"object",
"null"
]
},
"note": {
"description": "Caveat or context for reading the result",
"type": "string"
},
"series": {
"description": "Time series of values",
"type": "array"
},
"source": {
"description": "Data source the values come from",
"type": "string"
},
"top": {
"description": "Top-ranked items",
"type": "array"
},
"unit": {
"description": "Unit of measure",
"type": [
"string",
"null"
]
},
"years": {
"description": "Years covered",
"type": "array"
}
},
"required": [
"indicator",
"label"
],
"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": "2026-10-19T16:47:29.27Z",
"quality": {
"l30DaysTotalCalls": 2,
"l30DaysUniquePayers": 2,
"lastCalledAt": "2026-10-19T16:47:27.984Z"
},
"resource": "https://saylorinnovations.com/api/econ/imf",
"serviceName": "Saylor Innovations Data Desk",
"tags": [
"imf gdp forecast",
"world economic outlook data",
"country inflation forecast",
"imf datamapper",
"gdp growth by country"
],
"type": "http",
"x402Version": 2
},
"source": "x402_bazaar",
"summary": "IMF World Economic Outlook indicators by country or ranked worldwide - GDP growth, inflation, unemployment, debt and current account with forecast years"
}What the leaf hashes
{"body":"65b5c249c09c2224a75927f34554dd3cc2712ee51d49afcfe9ddcdd6781a489d","id":119678,"kind":"listing","method":"baseline/1","observed_us":1793025616345974,"prev":null,"subject":"x402_bazaar:https://saylorinnovations.com/api/econ/imf","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).
- 0xaf88360f7c02aad903cec74aa09393edd77c0acbc4edad6c3a09d009c609f08e
- 0x6bb733de40f4182ff20bc49972f268655b583497dd5a0555ab1a5bad89fe141c
- 0x1717c04a32c2ed4af287dfcd99353997a97feaead6f4883da2d5a35569e52631
- 0x62b408a2ba7db5b99db20ea7b059c26b46ce1b28ca9bcf675e5550b234b2eeda
- 0xcd4f742a99e4debbd228d011824fbed07d974b5daba7d62b55cc2b2220a43839
- 0xd72c1a10496b70197c1716ffa3e5a8b2cb8e0212cae9b6ff4962eae5b24a376f
- 0x0afbc4d0d9c3a2b72534cdd5c23ded48490399ee80787606f80529b0216dca38
- 0x80035696c0363eda2183ab4eb1400a319549c5f8e0607c7011f93ea02244d507
- 0x72ee242bc0e5ab60c6446aa0270adff2ea2d6f2181561ec391e6fd3e22647c75
- 0xcfa4bc1519c21b2a859b102250a82fc790ed215209a4c0fbfbe223ddbae52cad
- 0x863ea2425c8cc958ae125e95c3e3170c9ac576a8c72849cb3f596e616b6fd6a8
- 0xd17258d4f01d074dcaf38f36218b36058144c3d50c3b488953a815c54d6674d2
- 0xe292b5a99219f136bce6647ce74b21240a1c7331d2475b1839220fd363c94217
- 0x3b4dba7d874fc323b0a364140a9c60f37bf547fe671897653118a9873fe03420
- 0x1a74ed3b3756b9cd946da49701bcec120ec88645013da99fa9eea60b39e1a570
- 0x123ec8bee20ddc55223eeef5a4f4d6c4b6416515adbb911c56759f5cde56e452
- 0xd0651cb9bc8155eb52b5247d506e74b8a935057dc190ba52091702ac25ed3a40
- 0x9a9024edb5069d88a324facb310a5ce8e495214bbaa968f077bede437390194f
- 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a
- Day root
- 0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8
- Chained
- 0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a
- Published
- On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae