← The evidence ledger
Evidence row 76026
Observed , by baseline/1.
- Kind
- listing
- About
- source_record x402_bazaar:https://gov.halowerk.com/v1/quadratic-funding-calc
- Recorded
- Previous row
- None: the first of its kind about this subject
- Body SHA-256
- c99b57b664178140e4a0fa9107c57e7f71878bae5777842eb1d40e0c89abc6ec
- Leaf
- 0xd10540e77cd8f8a640351a85402e535fd2b7544e83b0ad93d97e7460b5391316
What was observed
{
"endpoints": [
[
"x402",
"https://gov.halowerk.com/v1/quadratic-funding-calc"
]
],
"name": "gov.halowerk.com/v1/quadratic-funding-calc",
"owner_address": "0x2880edfff13100677bf97a3cbdf3bc34771c4e5e",
"raw": {
"accepts": [
{
"amount": "4000",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"currency": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"asset": "USDC",
"assetTransferMethod": "eip3009",
"eip712Domain": {
"chainId": 8453,
"name": "USD Coin",
"verifyingContract": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"version": "2"
},
"name": "USD Coin",
"network_name": "Base Mainnet",
"version": "2"
},
"maxTimeoutSeconds": 300,
"network": "eip155:8453",
"payTo": "0x2880EdfFF13100677Bf97A3CBdF3Bc34771C4E5E",
"recipient": "0x2880EdfFF13100677Bf97A3CBdF3Bc34771C4E5E",
"scheme": "exact"
}
],
"description": "Caps individual contributions when requested, computes each project’s raw quadratic match as (sum sqrt(contribution))² minus direct contributions, and allocates a fixed matching pool proportionally. It does not detect Sybil identities, move funds, or decide project eligibility.",
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {
"contributions": [
{
"amount": 25,
"contributor_id": "alice",
"project_id": "public-data"
},
{
"amount": 100,
"contributor_id": "bob",
"project_id": "public-data"
},
{
"amount": 64,
"contributor_id": "alice",
"project_id": "audit-tools"
},
{
"amount": 36,
"contributor_id": "carol",
"project_id": "audit-tools"
}
],
"matching_pool": 1000,
"per_contribution_cap": 100
},
"bodyType": "json",
"method": "POST",
"type": "http"
}
},
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"additionalProperties": false,
"properties": {
"contributions": {
"items": {
"additionalProperties": false,
"properties": {
"amount": {
"maximum": 1000000000000000,
"minimum": 0.000001,
"type": "number"
},
"contributor_id": {
"maxLength": 128,
"minLength": 1,
"type": "string"
},
"project_id": {
"maxLength": 128,
"minLength": 1,
"type": "string"
}
},
"required": [
"project_id",
"contributor_id",
"amount"
],
"type": "object"
},
"maxItems": 50000,
"minItems": 1,
"type": "array"
},
"matching_pool": {
"maximum": 1000000000000000000,
"minimum": 0,
"type": "number"
},
"per_contribution_cap": {
"maximum": 1000000000000000,
"minimum": 0.000001,
"type": "number"
}
},
"required": [
"contributions",
"matching_pool"
],
"type": "object"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
},
"method": {
"enum": [
"POST",
"PUT",
"PATCH"
],
"type": "string"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method",
"bodyType",
"body"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}
}
},
"lastUpdated": "2026-10-06T14:17:29.848Z",
"quality": {
"l30DaysTotalCalls": 2,
"l30DaysUniquePayers": 2,
"lastCalledAt": "2026-10-06T14:17:29.41Z"
},
"resource": "https://gov.halowerk.com/v1/quadratic-funding-calc",
"type": "http",
"x402Version": 2
},
"source": "x402_bazaar",
"summary": "Caps individual contributions when requested, computes each project’s raw quadratic match as (sum sqrt(contribution))² minus direct contributions, and allocates a fixed matching pool proportionally. It does not detect Sybil identities, move funds, or decide project eligibility."
}What the leaf hashes
{"body":"c99b57b664178140e4a0fa9107c57e7f71878bae5777842eb1d40e0c89abc6ec","id":76026,"kind":"listing","method":"baseline/1","observed_us":1793025491525995,"prev":null,"subject":"x402_bazaar:https://gov.halowerk.com/v1/quadratic-funding-calc","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).
- 0xd1058166bbd7358847ede7422840157eea3c2aa133879d7d9c786ecd0659d170
- 0x989b652e8e4f8a9fdc6081421c673a6ff9d19e90d907acbe3df7565a92638975
- 0xc3e621bd08155ab732895f701f7725ed8fd41d9485d3558923c146a04f97d020
- 0x69cb16f9199cc45fdd19e5ad3e3cc85a21b425023b9fc274b5209c4d00b39a96
- 0x839309df71cec47b8338ed61073eef4459c8f0a1088b31c91b9f6eebe8ee5eca
- 0xbcf034cafb0887578dd2def2d463d624685725522f388d05806bba226be3d6ce
- 0x901bdfa03a2203978c1243f1a6f81f0a020ba171f559a9bf5d307ab71a326f98
- 0x759439a78ba56d04f8956ef3303f56012a2e7d4f5f2c0503aab36024e30fc8a4
- 0x139ecf4c5f2cb4700abfd1855d00c8b563d745d67c3f27c3e21380f2fbb4cf8e
- 0x0f53b93a25a2f186fd221bd4e152ef492b0cc841c0b870210a5fd6038ba3602e
- 0xcbb746ffeda31ff1f1b0d9f74705fed23a3c2abac5d325d65e8e867a7b5e6307
- 0xa4ec009cd8db00b48fa2e4df84088950b4d34c37254de09f5e3789441c0c5e73
- 0x889eefefef2d4457fe6114f397df813a5cbb85011a6f40309b54ddcd4aba3bd1
- 0xefabf1105e09cf52c12c58e60cbb5048b9ac3f02631d1816a926e14bdd86fbdf
- 0xe94ca5b798e9899ad611e57835af42266e20f53f44977e487d81365e30972beb
- 0x703f95866af09c5e5d6ead7411e9a10f964a41a2aff64d4a55ff0053c023a023
- 0xd0651cb9bc8155eb52b5247d506e74b8a935057dc190ba52091702ac25ed3a40
- 0x9a9024edb5069d88a324facb310a5ce8e495214bbaa968f077bede437390194f
- 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a
- Day root
- 0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8
- Chained
- 0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a
- Published
- On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae