← The evidence ledger
Evidence row 120585
Observed , by baseline/1.
- Kind
- listing
- About
- source_record x402_bazaar:https://saylorinnovations.com/api/science/nih-grants
- Recorded
- Previous row
- None: the first of its kind about this subject
- Body SHA-256
- cb23730dc69a5dc715aeb668f9fb5405decd4580623f4163e0aa6bac189698ec
- Leaf
- 0x967049f5ecdeb0bf236dbe36c01b660ba270e915b70631b4b0c3e430f9184bdc
What was observed
{
"endpoints": [
[
"x402",
"https://saylorinnovations.com/api/science/nih-grants"
]
],
"name": "Saylor Innovations Data Desk",
"owner_address": "0xa2a8df0f7caabea4e120a2568118f141569fc8aa",
"raw": {
"accepts": [
{
"amount": "10000",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"assetTransferMethod": "eip3009",
"facilitatorOnly": true,
"memo": "saylor:datadesk:nih-grants",
"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:nih-grants",
"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:nih-grants",
"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:nih-grants",
"reference": "BBvz4K6KaXojWk7DEp69F5bG331STK88oN1NbyX83iu7",
"session": "eyJhcnRpY2xlSWQiOiJkYXRhZGVzazpuaWgtZ3JhbnRzIiwicmVmZXJlbmNlIjoiQkJ2ejRLNkthWG9qV2s3REVwNjlGNWJHMzMxU1RLODhvTjFOYnlYODNpdTciLCJyZWNpcGllbnQiOiI3TFNqZnJKZjhmTnNCOFZBOXU3TjNXRW4yNXNtUUxwb2IzU3Z5VXZYYWN5NyIsIm1pbnQiOiJFUGpGV2RkNUF1ZnFTU3FlTTJxTjF4enliYXBDOEc0d0VHR2tad3lURHQxdiIsIm1pbkFtb3VudCI6MTAwMDAsImV4cCI6MTc5MjQzMDM3Mjg0NX0._6WNz3jLHI3UBVm257Z6xdeeACUn-s9oBfXygKaAF0c"
},
"maxTimeoutSeconds": 120,
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
"scheme": "exact"
},
{
"amount": "10000",
"asset": "Es9vMFrzaCERmJfrF4H2FYD4KCoNkY11McCe8BenwNYB",
"extra": {
"feePayer": "Hc3sdEAsCGQcpgfivywog9uwtk8gUBUZgsxdME1EJy88",
"memo": "saylor:datadesk:nih-grants",
"reference": "4Y3hZqnmyYUxRkQhF4TjRmqoRw3k2C4HzxZ75bTX9Z9B",
"session": "eyJhcnRpY2xlSWQiOiJkYXRhZGVzazpuaWgtZ3JhbnRzIiwicmVmZXJlbmNlIjoiNFkzaFpxbm15WVV4UmtRaEY0VGpSbXFvUnczazJDNEh6eFo3NWJUWDlaOUIiLCJyZWNpcGllbnQiOiI3TFNqZnJKZjhmTnNCOFZBOXU3TjNXRW4yNXNtUUxwb2IzU3Z5VXZYYWN5NyIsIm1pbnQiOiJFczl2TUZyemFDRVJtSmZyRjRIMkZZRDRLQ29Oa1kxMU1jQ2U4QmVud05ZQiIsIm1pbkFtb3VudCI6MTAwMDAsImV4cCI6MTc5MjQzMDM3Mjg0NX0.lJgcHU8iCuEfpcpGmIyew2CPwzAgbNrDWsL6rWkHLJY"
},
"maxTimeoutSeconds": 120,
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
"scheme": "exact"
},
{
"amount": "93098",
"asset": "So11111111111111111111111111111111111111112",
"extra": {
"memo": "saylor:datadesk:nih-grants",
"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": "95978",
"reference": "7z4YXa9J1rmdxLB8eQmverupDXNdPRzBJkmFtvLxbVv8",
"session": "eyJhcnRpY2xlSWQiOiJkYXRhZGVzazpuaWgtZ3JhbnRzIiwicmVmZXJlbmNlIjoiN3o0WVhhOUoxcm1keExCOGVRbXZlcnVwRFhOZFBSekJKa21GdHZMeGJWdjgiLCJyZWNpcGllbnQiOiI3TFNqZnJKZjhmTnNCOFZBOXU3TjNXRW4yNXNtUUxwb2IzU3Z5VXZYYWN5NyIsIm1pbnQiOm51bGwsIm1pbkFtb3VudCI6OTMwOTgsImV4cCI6MTc5MjQzMDM3Mjg0NX0.Ns7gqjsiy5N1OhodkD5pgGtuarxmLhqXxU-j9oZ7kiM",
"solUsdPrice": 104.19
},
"maxTimeoutSeconds": 120,
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
"scheme": "exact"
}
],
"description": "NIH-funded research grant search by topic - project number, title, fiscal year, award amount, institute, organization and principal investigators from RePORTER",
"extensions": {
"bazaar": {
"info": {
"input": {
"method": "GET",
"queryParams": {
"limit": "3",
"q": "crispr"
},
"type": "http"
},
"output": {
"example": {
"projects": [
{
"award_usd": 87708,
"end": "2027-02-28",
"fiscal_year": 2026,
"institute": "National Cancer Institute",
"org_state": "CA",
"organization": "STANFORD UNIVERSITY",
"principal_investigators": [
"Seth Michael Rubin",
"Jan M Skotheim"
],
"project_number": "3P01CA254867-04S1",
"start": "2022-03-25",
"title": "Determining and targeting mechanisms controlling cancer cell division",
"url": "https://reporter.nih.gov/project-details/11457250"
},
{
"award_usd": 555000,
"end": "2029-10-31",
"fiscal_year": 2026,
"institute": "National Institute of Allergy and Infectious Diseases",
"org_state": "TN",
"organization": "ST. JUDE CHILDREN'S RESEARCH HOSPITAL",
"principal_investigators": [
"Hongbo Chi"
],
"project_number": "5R01AI131703-07",
"start": "2018-02-13",
"title": "Regulation of T cell memory in tissue immunity",
"url": "https://reporter.nih.gov/project-details/11231279"
},
{
"award_usd": 668605,
"end": "2028-10-31",
"fiscal_year": 2026,
"institute": "National Institute of Allergy and Infectious Diseases",
"org_state": "NY",
"organization": "NEW YORK UNIVERSITY SCHOOL OF MEDICINE",
"principal_investigators": [
"STEFAN FESKE"
],
"project_number": "5R01AI175276-03",
"start": "2023-12-13",
"title": "Ion channels regulating plasma cell differentiation and humoral immunity",
"url": "https://reporter.nih.gov/project-details/11222694"
}
],
"query": "crispr",
"returned": 3,
"source": "NIH RePORTER (US National Institutes of Health), public domain",
"total_matches": 45530
},
"type": "json"
}
},
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"method": {
"enum": [
"GET"
],
"type": "string"
},
"queryParams": {
"properties": {
"limit": {
"description": "optional 1-25 (default 10)",
"type": "string"
},
"q": {
"description": "Topic keyword in project title or terms, e.g. crispr",
"type": "string"
}
},
"required": [
"q"
],
"type": "object"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"properties": {
"projects": {
"type": "array"
},
"query": {
"description": "The query as the server interpreted it",
"type": "string"
},
"returned": {
"description": "Number of items in this response",
"type": "number"
},
"source": {
"description": "Data source the values come from",
"type": "string"
},
"total_matches": {
"description": "Total number of matches before any limit is applied",
"type": [
"number",
"null"
]
}
},
"required": [
"query",
"projects"
],
"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": "2026-10-19T17:17:32.877Z",
"quality": {
"l30DaysTotalCalls": 2,
"l30DaysUniquePayers": 2,
"lastCalledAt": "2026-10-19T17:17:32.572Z"
},
"resource": "https://saylorinnovations.com/api/science/nih-grants",
"serviceName": "Saylor Innovations Data Desk",
"tags": [
"nih grants search",
"nih reporter projects",
"federally funded research",
"who funds crispr research",
"principal investigator grants"
],
"type": "http",
"x402Version": 2
},
"source": "x402_bazaar",
"summary": "NIH-funded research grant search by topic - project number, title, fiscal year, award amount, institute, organization and principal investigators from RePORTER"
}What the leaf hashes
{"body":"cb23730dc69a5dc715aeb668f9fb5405decd4580623f4163e0aa6bac189698ec","id":120585,"kind":"listing","method":"baseline/1","observed_us":1793025618291258,"prev":null,"subject":"x402_bazaar:https://saylorinnovations.com/api/science/nih-grants","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).
- 0x96702b4804a5b502007c952a2c05834141806a80433b62f3b4d4d102a810765f
- 0x1a66d292c9bf40a05d0cb89d5bf1345d575c6ac7465b8a379ba367abca40fc9f
- 0x4d6014689347a0b12286c5f233e25bf81b6207e4c43bc492295af51d0d4a2533
- 0x4524a2b94f37b65696b63a26dbec2b7c333b93d06d544b2bd60db314adaa2bf9
- 0x07ebf212f9115082ea9237e44e3789cc2abc53065d948fe7c3512f9b43b8b86c
- 0xaf3583a07cf6fb3ed48bb6084da1efe224fa1b27a012b51c2175b1db1da772b6
- 0xf487c5ebfe6d56e160d5352eaa3fd312ab00d51bd867cb5de2a26a9ca5bfa0b6
- 0x67e6f01ee14b9416ca80c18d742f941df25147a04e3bc5b54ecc8f9e9bc035ed
- 0xff01ec2fe9687f161d9c284ebddaa9bbf0487a549f17ddb02ada394330bb796a
- 0x1a56ccb45e009e2c2474b198726fcc15e9fc65b1b8da07f7e8f740b40167837a
- 0xc280b3b9968aa6c4c1d58f1d93bf282873099bba7b119c4ce413c82e165f3330
- 0xd43b73151a0c2d9a61f2ae73ed148938b0e6b05c81197f7eebbf95dba38a7004
- 0xb314422bc93e7f1c0b706c67f5fff96c5ddf74934bb2fe8ab6291ae016907e37
- 0x49062da782c4f73855ddd5fdd51840749f928b5f17d1ce75ac50f2d829104e72
- 0xf0bd63870f0bb378fa300bd33563050dcb7b3e02b44eb3ee550c1c534ec4b246
- 0x1ac20d30773e1f4f2f811540e9a99b5cca9177c9e2e029acc0d80cf3f1d11f0f
- 0xd21942ae3214eff88e08ab04884fd4b11958b51af9a0741b7668e2d07a2c56c9
- 0x9a9024edb5069d88a324facb310a5ce8e495214bbaa968f077bede437390194f
- 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a
- Day root
- 0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8
- Chained
- 0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a
- Published
- On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae