← The evidence ledger
Evidence row 67999
Observed , by sync.x402_bazaar/1.
- Kind
- listing
- About
- source_record x402_bazaar:https://saylorinnovations.com/api/brew/abv-calories
- Recorded
- Previous row
- None: the first of its kind about this subject
- Body SHA-256
- 150bd87940bbac3448cc950202a0e0fa62dccd7a3871e532320c823838cded0a
- Leaf
- 0x5c2eb35d48d0c1d12f7f88ba8e83a58d1016c8c5585eed3900cc45cac73168b0
What was observed
{
"endpoints": [
[
"x402",
"https://saylorinnovations.com/api/brew/abv-calories"
]
],
"name": "Saylor Innovations ABV, Attenua",
"owner_address": "0xa2a8df0f7caabea4e120a2568118f141569fc8aa",
"raw": {
"accepts": [
{
"amount": "10000",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"assetTransferMethod": "eip3009",
"facilitatorOnly": true,
"memo": "saylor:brew:abv-calories",
"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:brew:abv-calories",
"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:brew:abv-calories",
"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:brew:abv-calories",
"reference": "GUk1VYbDMam5FJsam9f7VjsvCFrDzCzSBrCVb4KZvJSx",
"session": "eyJhcnRpY2xlSWQiOiJicmV3OmFidi1jYWxvcmllcyIsInJlZmVyZW5jZSI6IkdVazFWWWJETWFtNUZKc2FtOWY3VmpzdkNGckR6Q3pTQnJDVmI0S1p2SlN4IiwicmVjaXBpZW50IjoiN0xTamZySmY4Zk5zQjhWQTl1N04zV0VuMjVzbVFMcG9iM1N2eVV2WGFjeTciLCJtaW50IjoiRVBqRldkZDVBdWZxU1NxZU0ycU4xeHp5YmFwQzhHNHdFR0drWnd5VER0MXYiLCJtaW5BbW91bnQiOjEwMDAwLCJleHAiOjE3OTI5OTcwNzgzOTR9.PVs_lBruO3H_jhl4YN-d1cxNAD85V0kbKzHBf62nNfA"
},
"maxTimeoutSeconds": 120,
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
"scheme": "exact"
},
{
"amount": "10000",
"asset": "Es9vMFrzaCERmJfrF4H2FYD4KCoNkY11McCe8BenwNYB",
"extra": {
"feePayer": "Hc3sdEAsCGQcpgfivywog9uwtk8gUBUZgsxdME1EJy88",
"memo": "saylor:brew:abv-calories",
"reference": "BF6gv8h4NyDTSS2wAUfusajxtmcNKTUeLMhHD2yW3Z5J",
"session": "eyJhcnRpY2xlSWQiOiJicmV3OmFidi1jYWxvcmllcyIsInJlZmVyZW5jZSI6IkJGNmd2OGg0TnlEVFNTMndBVWZ1c2FqeHRtY05LVFVlTE1oSEQyeVczWjVKIiwicmVjaXBpZW50IjoiN0xTamZySmY4Zk5zQjhWQTl1N04zV0VuMjVzbVFMcG9iM1N2eVV2WGFjeTciLCJtaW50IjoiRXM5dk1GcnphQ0VSbUpmckY0SDJGWUQ0S0NvTmtZMTFNY0NlOEJlbndOWUIiLCJtaW5BbW91bnQiOjEwMDAwLCJleHAiOjE3OTI5OTcwNzgzOTV9.ebcrONSTZlLykzucCX5CoUAumVI_ZoF7uZYimDRbX38"
},
"maxTimeoutSeconds": 120,
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
"scheme": "exact"
},
{
"amount": "96239",
"asset": "So11111111111111111111111111111111111111112",
"extra": {
"memo": "saylor:brew:abv-calories",
"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": "99216",
"reference": "GudwZ36MNApXx6PzoWeDjDHqZuMaTJW4NWcRMCexSrGJ",
"session": "eyJhcnRpY2xlSWQiOiJicmV3OmFidi1jYWxvcmllcyIsInJlZmVyZW5jZSI6Ikd1ZHdaMzZNTkFwWHg2UHpvV2VEakRIcVp1TWFUSlc0TldjUk1DZXhTckdKIiwicmVjaXBpZW50IjoiN0xTamZySmY4Zk5zQjhWQTl1N04zV0VuMjVzbVFMcG9iM1N2eVV2WGFjeTciLCJtaW50IjpudWxsLCJtaW5BbW91bnQiOjk2MjM5LCJleHAiOjE3OTI5OTcwNzgzOTV9.0-kJaof3Jcc1vVGYHx8hN2VIAOmwkwBIT8HduBzJEoo",
"solUsdPrice": 100.79
},
"maxTimeoutSeconds": 120,
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
"scheme": "exact"
}
],
"description": "ABV, attenuation, calories, alcohol grams, hydrometer temperature and refractometer corrections",
"extensions": {
"bazaar": {
"info": {
"input": {
"method": "GET",
"queryParams": {
"fg": "1.012",
"og": "1.055",
"sample_temp_f": "72",
"volume_l": "19"
},
"type": "http"
},
"output": {
"example": {
"abv_percent": 5.6,
"apparent_attenuation_percent": 78,
"calories_12oz": 175
},
"type": "json"
}
},
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"method": {
"enum": [
"GET"
],
"type": "string"
},
"queryParams": {
"properties": {
"fg": {
"description": "required final gravity, for example 1.012 (query)",
"type": "string"
},
"og": {
"description": "required original gravity, for example 1.055 (or Brix with og_brix) (query)",
"type": "string"
},
"sample_temp_f": {
"description": "optional hydrometer sample temperature, default 68 (query)",
"type": "string"
},
"volume_l": {
"description": "optional batch volume to compute alcohol totals (query)",
"type": "string"
}
},
"required": [
"og",
"fg"
],
"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": "2026-10-26T06:42:38.437Z",
"quality": {
"l30DaysTotalCalls": 1,
"l30DaysUniquePayers": 1,
"lastCalledAt": "2026-10-26T06:42:38.153Z"
},
"resource": "https://saylorinnovations.com/api/brew/abv-calories",
"serviceName": "Saylor Innovations ABV, Attenua",
"tags": [
"cooking",
"recipe",
"baking",
"brewing",
"food-safety"
],
"type": "http",
"x402Version": 2
},
"source": "x402_bazaar",
"summary": "ABV, attenuation, calories, alcohol grams, hydrometer temperature and refractometer corrections"
}What the leaf hashes
{"body":"150bd87940bbac3448cc950202a0e0fa62dccd7a3871e532320c823838cded0a","id":67999,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793025465548210,"prev":null,"subject":"x402_bazaar:https://saylorinnovations.com/api/brew/abv-calories","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).
- 0x5c2e4113ba3aef562ee1e5c338c970ce731783d01bc165d8694a8228acb8d2ae
- 0x6340eb0c849e574daeb66b915698492118654120270e6293fe63e31f0f40975c
- 0xf02b4de5374ac6a918749da1611c782f6f3919b45eaaaa714985d975da6e49c6
- 0xa32fdff7091291f22c9daef194fa5327c79dcc267a15f30892f1f06df63c02d7
- 0x753a01ea20bbb8bb52f54d7d0d6342e9c800de594c7df3d2f271e0d00b7d24d1
- 0x8e6b0a8d73258428d92db9a2cb99203d6256e1d75fac5de1fee9318705d985fa
- 0x8c6ef93a496b9eb2fa65c27c22c1c9f576a6d88e6ca4a5c0804bc3870bddcf93
- 0xa5354cd3b1a5200e9be777da3783f8a87d1e3b22bda62e4cc00b39430088e64f
- 0xab3cccedb86741dbc4cc501d50910e2fdb7eac4e4fdd38284f753fe1107665a1
- 0xa8ffcda5ce803e6416e11aeb68f113e4b6fd6bc8a9d891a50b9f815e09eedb9f
- 0xc6d2784f07e8c139bf8f780cbae14d0deadd031c795b132568f433e9f582c7d3
- 0x2121cc2dbcb8663af57743dc445c8a59e5bbfffe89703f0606c9843f0d35aff8
- 0x66883b42f4167ade51c4909f050c5478524e23786fb0b5c48bd1a53580960a68
- 0x216cebb9ae5414599109a02297c4817d7d1c6b1394afeb97efe38e32f0053974
- 0x7726154b91b2ad65b13849ef6cb6443b1f0ff113a3089c9bd5f2bcfc16be099d
- 0x47b89901b0f07938a6b9a66ddf35683903f79d756a7c7763665fd632758b08d0
- 0x9a83be955a206deb65b995adfd92c58fa31c95fbbf926bd199d300e70b08b26d
- 0x20704208aa6923d6b2450ef74ede87a6e0265d46447926038fe9506e9e154b2d
- 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a
- Day root
- 0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8
- Chained
- 0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a
- Published
- On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae