Evidence row 1790983

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://api.artefaktum.dev/v1/projects"
    ]
  ],
  "name": "Artefaktum",
  "owner_address": "0xeccc9f03eb79c6a5b0fbd919f95656557e6a6173",
  "raw": {
    "accepts": [
      {
        "amount": "5000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 60,
        "network": "eip155:8453",
        "payTo": "0xeccc9f03eb79c6a5b0fbd919f95656557e6a6173",
        "scheme": "exact"
      }
    ],
    "description": "List the projects of the paying wallet's account. Returns {items: [{id, name, slug, created_at}]}. Call this first: uploads, listings and search need a project_id. Costs $0.005 in USDC. No signup: a wallet's first payment creates its account and a default project; the same wallet later reaches the same files.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "type": "http"
          },
          "output": {
            "example": {
              "items": [
                {
                  "created_at": "2026-10-31T09:30:00Z",
                  "id": "019a3a10-0c3e-7c4e-9a51-2f6d8e1b4c70",
                  "name": "Default",
                  "slug": "default"
                }
              ]
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "method": {
                  "enum": [
                    "GET"
                  ],
                  "type": "string"
                },
                "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/v1793456363/bazaar-icons/804f62358cb25a27.png",
    "lastUpdated": "2026-10-31T22:57:25.759Z",
    "quality": {
      "l30DaysTotalCalls": 7,
      "l30DaysUniquePayers": 1,
      "lastCalledAt": "2026-10-31T22:57:25.437Z"
    },
    "resource": "https://api.artefaktum.dev/v1/projects",
    "serviceName": "Artefaktum",
    "tags": [
      "storage",
      "artifacts",
      "files",
      "search",
      "agents"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "List the projects of the paying wallet's account. Returns {items: [{id, name, slug, created_at}]}. Call this first: uploads, listings and search need a project_id. Costs $0.005 in USDC. No signup: a wallet's first payment creates its account and a default project; the same wallet later reaches the same files."
}

What the leaf hashes

{"body":"46de652632b1455de19ca2f9685ac5740df9947262af8b7ff3eabd57fe562638","id":1790983,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793559939360812,"prev":null,"subject":"x402_bazaar:https://api.artefaktum.dev/v1/projects","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-11-01 (302406 rows).

1. 0x3604034d8dad3e768f9f85f2fb7da514a5aaea99944caa8520d048ce38f2271e
2. 0x284ee145794d640b94e19ffc117def611281f19df073f79ff4eddc9020e3c9a7
3. 0x853a16ac247b8aef059382c22b2cf0a2389b87028cd7e1d8f00e1d52f5037da6
4. 0x84f87b71b11535a2a27894a5f63270ed8c36b7dbf7a23bc56c585f9df820543f
5. 0x555bb06a12c13dfd8911edd9277723671fbd72cda5dc612d53fb1e2b404ee551
6. 0x4dd9fcdfae37d7729dbebdc4d53e29e02a761559f1635b863daf88e7869bd237
7. 0xa9c58eb098ab3b8624f7a0b86c6848edf8b0a0da86179e04041f4fe3196d0c03
8. 0x21f705d0f059ee5e52f4a473ec870d1d88b6000ff87c62f148494e5bf9a3704d
9. 0xe28231b097912948fb31cf5be54146467aa9a9fa59114c430716ac6c09ca80a1
10. 0x2b194d723ddfc664781dfdb9c7becb9f9f35adc1eae83910021cf486790aab3a
11. 0xfd1a0953c8b8f6b8fabce409c7eac19aaf536a8784dd854cd706365899142248
12. 0x430f2c8ba8ad43480fc5cafec26ef91c193fc91fac5d078625365e3b2ce1ff21
13. 0xdba48e0b270dc35a114639ac6d3ae9323f73a176da0f2cc0715e5a5b8f1d8059
14. 0x770f20a6b76206ceacb50b86f521e555bd27a1f27e7156c64591601c5b119595
15. 0x80b1e578d986f759ca01ea02c7a922e757a26a65318f9844ac72c5c1d4fe339e
16. 0xa856ad79e6f29a2b5516257f0d4817172cca11251fe2e7e8f3911b105fe2b622
17. 0x02b3554752e71a19b12d7a76dbff436e85387226ceec89fdebdcdaf0122c2932
18. 0x1973893697931b7512ae5dc1a3c92ef92f633ae3574dce9029a35b5e94d2d364
19. 0x3315fd2757fdd435852cc277377234a3f3909a6d2a089d0e36f6d59aacfda910

Day root

0x7fa2cba1cf3d6b35630896f5fe1a650adb307ea2c376e80a5f2d9276b7cb5ab3

Chained

0x577ff89ba012beeff3197bcff7fa86752074bdf54205a24359cc437be2a952a4

Published

On Arc Testnet, block 70262758: 0x435bc1b9331471d72e1998f2e420983b5189d4da65ffbd6f27ef40daf5e1ea90