← The evidence ledger
Evidence row 61523
Observed , by baseline/1.
- Kind
- listing
- About
- source_record x402_bazaar:https://agent.halowerk.com/v1/twin-diff
- Recorded
- Previous row
- None: the first of its kind about this subject
- Body SHA-256
- 8d093c0945d7be8d00cea22e5abfe3702de285d497d78807e947ec95a6965429
- Leaf
- 0x176d859b89965b3e8b0aec98122540ea80ebc99f848ff572fc40cff1fdcafbe4
What was observed
{
"endpoints": [
[
"x402",
"https://agent.halowerk.com/v1/twin-diff"
]
],
"name": "agent.halowerk.com/v1/twin-diff",
"owner_address": "0x2880edfff13100677bf97a3cbdf3bc34771c4e5e",
"raw": {
"accepts": [
{
"amount": "3000",
"asset": "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",
"scheme": "exact"
}
],
"description": "Takes two state documents — target (what the twin should look like) and observed (what was measured) — and returns a leaf-by-leaf comparison. Every leaf path carries one of five states: in_tolerance, out_of_tolerance, missing_in_observed, unexpected_in_observed or type_mismatch.",
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {
"default_tolerance_ratio": 0,
"observed": {
"firmware": "2.3.9",
"pump": {
"pressure_bar": 4.15,
"running": true
},
"site": {
"radius_km": 12.4
}
},
"target": {
"firmware": "2.4.1",
"pump": {
"pressure_bar": 4,
"running": true
},
"site": {
"radius_km": 12
}
},
"tolerances": [
{
"field": "/pump/pressure_bar",
"tolerance_abs": 0.2,
"unit": "bar"
},
{
"field": "/site/radius_km",
"tolerance_ratio": 0.01,
"unit": "km"
}
]
},
"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": {
"case_insensitive_strings": {
"default": false,
"description": "Compare string leaves without regard to case.",
"type": "boolean"
},
"default_tolerance_ratio": {
"default": 0,
"description": "Relative tolerance for numeric paths without their own entry. 0 means exact equality.",
"maximum": 1,
"minimum": 0,
"type": "number"
},
"ignore_fields": {
"description": "Paths to leave out of the comparison. A trailing /* ignores everything below that prefix.",
"items": {
"maxLength": 400,
"minLength": 1,
"type": "string"
},
"maxItems": 200,
"type": "array"
},
"max_fields": {
"default": 2000,
"description": "Reject the request if the two documents together hold more leaf paths than this.",
"maximum": 2000,
"minimum": 1,
"type": "integer"
},
"observed": {
"description": "The observed state document (the measurement).",
"type": "object"
},
"target": {
"description": "The desired state document (the twin).",
"type": "object"
},
"tolerances": {
"description": "Per-path tolerances. Give tolerance_abs or tolerance_ratio, not both.",
"items": {
"additionalProperties": false,
"properties": {
"field": {
"description": "Leaf path as it appears in the result, e.g. /pump/pressure_bar. A trailing /* applies the entry to every leaf below that prefix.",
"maxLength": 400,
"minLength": 1,
"type": "string"
},
"tolerance_abs": {
"description": "Absolute tolerance in the unit of this field.",
"minimum": 0,
"type": "number"
},
"tolerance_ratio": {
"description": "Relative tolerance as a ratio of the larger of the two values.",
"maximum": 1,
"minimum": 0,
"type": "number"
},
"unit": {
"description": "Unit of this field, echoed into the result. Declared by you, never inferred.",
"maxLength": 32,
"type": "string"
}
},
"required": [
"field"
],
"type": "object"
},
"maxItems": 200,
"type": "array"
}
},
"required": [
"target",
"observed"
],
"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": "2026-10-08T05:40:20.962Z",
"quality": {
"l30DaysTotalCalls": 4,
"l30DaysUniquePayers": 4,
"lastCalledAt": "2026-10-08T05:40:20.435Z"
},
"resource": "https://agent.halowerk.com/v1/twin-diff",
"type": "http",
"x402Version": 2
},
"source": "x402_bazaar",
"summary": "Takes two state documents — target (what the twin should look like) and observed (what was measured) — and returns a leaf-by-leaf comparison. Every leaf path carries one of five states: in_tolerance, out_of_tolerance, missing_in_observed, unexpected_in_observed or type_mismatch."
}What the leaf hashes
{"body":"8d093c0945d7be8d00cea22e5abfe3702de285d497d78807e947ec95a6965429","id":61523,"kind":"listing","method":"baseline/1","observed_us":1793025451056588,"prev":null,"subject":"x402_bazaar:https://agent.halowerk.com/v1/twin-diff","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).
- 0x176cd9bad60f134e4bc998b1da87f7470ecfc08c90bb74ad4b0513112cfb5df6
- 0x513ac544aac768280a3654e1a5b7ef0e468542c3ed5ff1b9e19cf8593e98d3a5
- 0xb2665881262385d5749eab71ba7b357f2b345045a16242c0e3555e7f2744630e
- 0xfb6ffe0c88f3055e008ef66db83f2151eb9ff75ec2a2acd879733dc73b70daa8
- 0x6a4b44b2f8ce6b003aa59ce8a0c865c78f6539a05d574c2b47c37b178cf04b5d
- 0x9e0fcee4c297bc33d202a85cdbebc02169b0047e0beb45aeeab03c69a64e77fc
- 0xfedfd8f830d270e050eb8e7f8ebe8334fcc983d2d6c6e330c5b52d1879975a57
- 0x12ac9abca55af0b3837c8f618f21f5f3040e5461ea53a7fbbdccd3eef12e7a0d
- 0x4e70f5f2f3c203f12709ed0c0f41607134188ecfceb56b8eaa6f6cae8620cede
- 0x0d4fc8ebd9dad99184207670597ef1933fa15a1f2659bf0e662e21ebef5f0e51
- 0x84d28434d4d3c4d17b89916035448fc07d9ad132609b14e307edbe020e19d1a6
- 0x15eab8feed5b3f08165d63b9f1aed508c0624966a05349e051f86f0c188707b5
- 0x32f46c5f73ecbfd4f770f7f760a79bee2afed4b3e7572fa882b3e7dce8df4356
- 0x770e4376196188c7fc9ec40f8e218dc0d1cb92bba5fe0425a0edce27ca9a997f
- 0x60582ab4b41e72eb70eb0bce07fbf0fb4d2b62a8bad5be50f5d16d511adc746c
- 0xc6a4d7899a0f442958e26505011190b7cff2483611c1b94eba9043e0ba9ac36e
- 0x8c756542e482157df0c36464d75c937b845e4423dbbcfad08f0cf8d5a16b9a13
- 0x20704208aa6923d6b2450ef74ede87a6e0265d46447926038fe9506e9e154b2d
- 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a
- Day root
- 0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8
- Chained
- 0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a
- Published
- On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae