← The evidence ledger
Evidence row 73422
Observed , by baseline/1.
- Kind
- listing
- About
- source_record x402_bazaar:https://desk.grokaiapps.com/v1/jobs/watch-once
- Recorded
- Previous row
- None: the first of its kind about this subject
- Body SHA-256
- b3a118fbb99a4ac45c2eb97db76d7eb95ce5262dec0a94f753bb9d11e775650e
- Leaf
- 0x47204d3d0a5341955d3eab5186861c92472ab2663496604c7ffc9b1a71b83c49
What was observed
{
"endpoints": [
[
"x402",
"https://desk.grokaiapps.com/v1/jobs/watch-once"
]
],
"name": "AUTOGROK Desk",
"owner_address": "0x2beb44d877ac1a3fe12230ded74ef5f934cabc29",
"raw": {
"accepts": [
{
"amount": "100000",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"maxTimeoutSeconds": 60,
"network": "eip155:8453",
"payTo": "0x2Beb44D877aC1A3fe12230Ded74EF5f934caBC29",
"scheme": "exact"
},
{
"amount": "100000",
"asset": "0x036CbD53842c5426634e7929541eC2318f3dCF7e",
"extra": {
"name": "USDC",
"version": "2"
},
"maxTimeoutSeconds": 60,
"network": "eip155:84532",
"payTo": "0x2Beb44D877aC1A3fe12230Ded74EF5f934caBC29",
"scheme": "exact"
}
],
"description": "Call for a one-shot change detector: fetch a public URL, hash normalized main text (sha256), optionally compare to previous_hash. Returns hash, changed true/false/null, word_count. Use for cheap page-watch loops; not a persistent webhook subscription.",
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {
"previous_hash": "e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855",
"url": "https://example.com"
},
"bodyType": "json",
"method": "POST",
"type": "http"
},
"output": {
"example": {
"changed": true,
"fetched_at": "2026-09-21T20:00:00.000Z",
"hash": "ab12cd34ef567890ab12cd34ef567890ab12cd34ef567890ab12cd34ef567890",
"previous_hash": "e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855",
"url": "https://example.com/",
"word_count": 42
},
"type": "json"
}
},
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"properties": {
"previous_hash": {
"description": "Prior sha256 hex; omit for baseline (changed=null)",
"type": "string"
},
"url": {
"description": "Public http(s) URL to hash",
"format": "uri",
"type": "string"
}
},
"required": [
"url"
]
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
},
"method": {
"enum": [
"POST"
],
"type": "string"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method",
"bodyType",
"body"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"properties": {
"changed": {
"type": [
"boolean",
"null"
]
},
"fetched_at": {
"format": "date-time",
"type": "string"
},
"hash": {
"type": "string"
},
"previous_hash": {
"type": [
"string",
"null"
]
},
"url": {
"type": "string"
},
"word_count": {
"type": "integer"
}
},
"required": [
"url",
"hash",
"changed",
"word_count",
"fetched_at"
],
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}
},
"builder-code": {
"info": {
"s": [
"cdp_sdk_server"
]
},
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"additionalProperties": false,
"properties": {
"a": {
"description": "App builder code",
"pattern": "^[a-z0-9_]{1,32}$",
"type": "string"
},
"s": {
"description": "Service builder codes",
"items": {
"pattern": "^[a-z0-9_]{1,32}$",
"type": "string"
},
"maxItems": 11,
"type": "array"
},
"w": {
"description": "Wallet builder code",
"pattern": "^[a-z0-9_]{1,32}$",
"type": "string"
}
},
"type": "object"
}
},
"eip2612GasSponsoring": {},
"erc20ApprovalGasSponsoring": {}
},
"lastUpdated": "2026-10-13T07:59:34.887Z",
"quality": {
"l30DaysTotalCalls": 1,
"l30DaysUniquePayers": 1,
"lastCalledAt": "2026-10-13T07:59:34.551Z"
},
"resource": "https://desk.grokaiapps.com/v1/jobs/watch-once",
"serviceName": "AUTOGROK Desk",
"tags": [
"watch-once",
"change-detect",
"hash",
"search",
"data"
],
"type": "http",
"x402Version": 2
},
"source": "x402_bazaar",
"summary": "Call for a one-shot change detector: fetch a public URL, hash normalized main text (sha256), optionally compare to previous_hash. Returns hash, changed true/false/null, word_count. Use for cheap page-watch loops; not a persistent webhook subscription."
}What the leaf hashes
{"body":"b3a118fbb99a4ac45c2eb97db76d7eb95ce5262dec0a94f753bb9d11e775650e","id":73422,"kind":"listing","method":"baseline/1","observed_us":1793025487613299,"prev":null,"subject":"x402_bazaar:https://desk.grokaiapps.com/v1/jobs/watch-once","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).
- 0x471fb5ace19fd543ed7061c1d09ab7e1744351c35647e983ad05f606dca342b9
- 0xaa4ff7f9cb7e2889c1e3cbc18db5593661bbdb7553dbcb1ac5ff7b26009e5286
- 0x3d8fe9e1c5bee0778a8509d1a599b13fec21bcfabaab3e81b3cbdb27992c3dde
- 0xaa1e08a901959c2128f3f8f38fccb47d235cd9cd8c1aae3777529cc435696a4d
- 0x370c06fed1ef976cf822c1c4a8423d03fcf5a9b72cd5c89c5eb0fd6287afe9c9
- 0xf4060f1b4a64e8168ab7cddc2eb25a6d3524e1f57ba19f6f42c91cac702dad8c
- 0xd47bf5cafe8511de29a0f3efbc59857e2d0710b251f70581c99da874883758fa
- 0x03cf705066111873d8f9fc77c91b6d3eb80ff4e670c54e8e6a93c349fc1680a2
- 0x297b4a097b146fa0d7ae73232b4e07a3307605adf919e8fd398fbc647ab2bd3b
- 0xa42a7426289fd9f8743f53fc2566b0c9eebb23ae577bd4a3cab7b4c80cd7e5a2
- 0x263cc8bcddc70acc00ef06b84397a006a822410dc2b18b714a0be72a820c5b17
- 0xae3550e71ca4b0f0b86c9905b234388d6bc01a22e52324fb1ee62a553273a1fe
- 0xb86fa861d04737cb507e721eefbb066d26528fdb6017b1145c18d1223b93ee21
- 0x88e326a39b26e2c125306c9d3805d14398ace088bba9a2a0aa376b811cfb201a
- 0x2be1e80e065dd6b2cc75a7142be22225acd144ac975d70bf24b4f01fd76dc497
- 0x2e6a32eb32761c210560e852405e2f865f958ddbe01027894f8b9c1b3433b9f0
- 0x9a83be955a206deb65b995adfd92c58fa31c95fbbf926bd199d300e70b08b26d
- 0x20704208aa6923d6b2450ef74ede87a6e0265d46447926038fe9506e9e154b2d
- 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a
- Day root
- 0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8
- Chained
- 0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a
- Published
- On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae