Evidence row 1532283

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://instructional-decision-engine-x402.vercel.app/operations/scope-change"
    ]
  ],
  "name": "instructional-decision-engine-x402.vercel.app/operations/scope-change",
  "owner_address": "0x6b62673ccbe35ff0dc68490c7ca576334e0d607e",
  "raw": {
    "accepts": [
      {
        "amount": "50000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:8453",
        "payTo": "0x6B62673cCbe35ff0dc68490c7Ca576334e0D607e",
        "scheme": "exact"
      }
    ],
    "description": "Calculate a draft scope-change quote and delivery-day estimate from bounded effort, rate, costs and capacity. Returns itemized arithmetic and an approval checklist; does not change contracts or send quotes.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "additionalMinutes": 600,
              "availableMinutesPerDay": 240,
              "contingencyPct": 15,
              "externalCostCents": 20000,
              "hourlyRateCents": 10000
            },
            "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": {
                    "additionalMinutes": {
                      "maximum": 1000000,
                      "minimum": 0,
                      "type": "integer"
                    },
                    "availableMinutesPerDay": {
                      "maximum": 1440,
                      "minimum": 1,
                      "type": "integer"
                    },
                    "contingencyPct": {
                      "maximum": 100,
                      "minimum": 0,
                      "type": "integer"
                    },
                    "externalCostCents": {
                      "maximum": 1000000000,
                      "minimum": 0,
                      "type": "integer"
                    },
                    "hourlyRateCents": {
                      "maximum": 1000000,
                      "minimum": 0,
                      "type": "integer"
                    }
                  },
                  "required": [
                    "additionalMinutes",
                    "hourlyRateCents",
                    "externalCostCents",
                    "contingencyPct",
                    "availableMinutesPerDay"
                  ],
                  "type": "object"
                },
                "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"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      }
    },
    "lastUpdated": "2026-10-30T21:18:12.064Z",
    "quality": {
      "l30DaysTotalCalls": 1,
      "l30DaysUniquePayers": 1,
      "lastCalledAt": "2026-10-30T21:18:11.899Z"
    },
    "resource": "https://instructional-decision-engine-x402.vercel.app/operations/scope-change",
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Calculate a draft scope-change quote and delivery-day estimate from bounded effort, rate, costs and capacity. Returns itemized arithmetic and an approval checklist; does not change contracts or send quotes."
}

What the leaf hashes

{"body":"0e2ce12d7490869cd75845231c2c861da5c550d9b34ca95c29dac8aa087ccba2","id":1532283,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793473475923754,"prev":null,"subject":"x402_bazaar:https://instructional-decision-engine-x402.vercel.app/operations/scope-change","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-10-31 (246033 rows).

1. 0x8054f195c947565b459c1dbb1043d2864e5505752d760013a1fd89f908dd8f72
2. 0x77950dfb6a4ae5198b60aac775ceb2ac5123448570723dfe147ff073de022495
3. 0xdad1bbb61855d8e087bf44ea5bb88de310c5d92fda279fc02d3e61c5c2b98707
4. 0xfed74b5b18e0b483859b00a4e856f12a250e381e389c62348d7b8f11f56394c4
5. 0x7c1ec9099a652d4f17add486cc68c6b0257e5cc3ede685e2b3f839e65c462cc2
6. 0x0ce1d9bd5a1e5fbdd4e55812c7e866873055ec428687072863c4f6fd3fab6073
7. 0x23b82849202c28ddd0f7c0fc9f99e0c31151783370f425bfdc36f0e4b5624931
8. 0x3d9b07cbab7e447ca2740c21b6858f725c861171da2706804610c170c531cada
9. 0x69e85c052a5efb54bc002a3047df32e25c516ba09f4f9dd438ba6d20797dca72
10. 0x69f2f878e51e60de618c1a5306b743b28bf71efa6853fd97cc9805590caa608d
11. 0x510bad1c2b93dacfbc3d0ef167811c74cafe473d14a976dd7b688b217eb045e2
12. 0xdfffa337c1b796d703a06a3c278ecc1115120a9e96b1b674c0942b855e8c05d1
13. 0x5da98004d63a664b48fb1cbdd3411495870573c4cdf283e78b4657e393085211
14. 0xa59dc4109e7747a67ff1c74b854a6a84d4177b254204f0623f549d72e4be7445
15. 0xb553c856ad5fb96dd995dd0c40f65a2d8efc7b7f254a1ac0f2c104350e544985
16. 0x919f237dec4df392868ab95f1d4300b185479ae64464cbc2e7385ad1fd6ab390
17. 0xa00a931d72706fa2402bfc9b441a12eb7c6a61ff42a542916106e3637177f101
18. 0x59f83f7228f07febe2780660e422e171b0359b8aa031ee3be07e991118130c15

Day root

0x24463725d1c0d9894bd6123691d532547aaa79f0762c0e45aa6a68acf1fd71ab

Chained

0x7d4824ff313dee7252a46f9d5c37b452851deb6c9f24a40c2f74ee0e53c82980

Published

On Arc Testnet, block 70093156: 0xedb7b832f4ebf6781b5ecd2ed241c435b862f4d3761541fa31adc1831b8c44a0