Evidence row 75762

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://gblin.digital/api/x402/catalog"
    ]
  ],
  "name": "gblin.digital/api/x402/catalog",
  "owner_address": "0x0eba5d314f4f5dcb7a094953fa9311a45172dd1b",
  "raw": {
    "accepts": [
      {
        "amount": "5000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:8453",
        "payTo": "0x0ebA5d314F4f5Dcb7A094953Fa9311a45172dd1B",
        "scheme": "exact"
      }
    ],
    "description": "Call before your agent pays an x402 service it has not used recently: is that endpoint actually alive? Liveness of the ~200 most recently updated Bazaar listings, probed in rotation (each about every 36h): HTTP status, latency, last-OK time and consecutive failures per endpoint. Measurements only, no judgements; the probes never pay. Free aggregate view: gblin-mcp.gblin-mcp-worker.workers.dev/catalog",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "queryParams": {},
            "type": "http"
          },
          "output": {
            "example": {
              "alive": 198,
              "cadence_hours": 2,
              "probed": 200,
              "sample": [
                {
                  "consecutive_fails": 0,
                  "http": 402,
                  "last_ok": "2026-08-30T09:00:00.000Z",
                  "latency_ms": 143,
                  "resource": "https://example.com/api/paid"
                }
              ]
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "method": {
                  "enum": [
                    "GET"
                  ],
                  "type": "string"
                },
                "queryParams": {
                  "properties": {},
                  "required": [],
                  "type": "object"
                },
                "type": {
                  "const": "http",
                  "type": "string"
                }
              },
              "required": [
                "type",
                "method"
              ],
              "type": "object"
            },
            "output": {
              "properties": {
                "example": {
                  "type": "object"
                },
                "type": {
                  "type": "string"
                }
              },
              "required": [
                "type"
              ],
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      }
    },
    "lastUpdated": "2026-10-22T20:58:56.783Z",
    "quality": {
      "l30DaysTotalCalls": 24,
      "l30DaysUniquePayers": 3,
      "lastCalledAt": "2026-10-22T20:58:56.484Z"
    },
    "resource": "https://gblin.digital/api/x402/catalog",
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Call before your agent pays an x402 service it has not used recently: is that endpoint actually alive? Liveness of the ~200 most recently updated Bazaar listings, probed in rotation (each about every 36h): HTTP status, latency, last-OK time and consecutive failures per endpoint. Measurements only, no judgements; the probes never pay. Free aggregate view: gblin-mcp.gblin-mcp-worker.workers.dev/catalog"
}

What the leaf hashes

{"body":"c5bd706e7d695cb000a390b82ea7b4e19a40b946ef2d2570edb45be2de78b68f","id":75762,"kind":"listing","method":"baseline/1","observed_us":1793025491065462,"prev":null,"subject":"x402_bazaar:https://gblin.digital/api/x402/catalog","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-10-26 (296695 rows).

1. 0x46193b6a25368923d028c97ce5afcf4b9633dc1fa016db9437a3b1a9bbc7ac1d
2. 0xe8a176fcd959c6a90b9205710c65bc737aeaefde5d75a3bee6fc1109ee670821
3. 0x30f31fdd8e73b88f104170569cde09c901335ed813c6980c748f5bd7bf8659f4
4. 0x8eb7128012b9d22e0e99859fe8d05aa70e525ca33f0577d3d38f08730609d896
5. 0x0db49ffa8aad4c88c2bd881ff7ce484d76a198decf2a7e69aeac68ee3b9ca38c
6. 0x9a48d17ea6743dab3d77f5f3a2cf08ca711c9f7658b3536b91eeceb021b2ef92
7. 0x23b75a2c9f8f32833912af47b7179a48e407035382bf78fe4491d36fecad22c3
8. 0xc4659de698fcc5ec640744268488c71ef507a92b818e4493e1766e8b5b675d7d
9. 0x98f4ed6c9aca13da1c20894a7047277266eb8ec70dae0529babc30e087104ee4
10. 0x6a1f5a35af750ae279aa449f09e871daec7daf61e24910bcb67b1594232df31c
11. 0x415bf66d9c632a887484603836ad3f90715af6f56ae73f0a5711497372ba0265
12. 0x804dd9d5afe0f1a780e24099fb6b21f5f20545893ea0eeddf5fb9114e2f3edd5
13. 0x54b29089c0a3cbbd6ddbe58944696110984dd5f418275cb1b77f957c56da8eab
14. 0x8b27a4c21bf4ba962fd008c8f4300bc6953764a5032b9ab0cfe696b318c45326
15. 0x4b52a97f7a80ff7778a702b85267b8d2e5c93ce160942656435c29ae7be68bf4
16. 0x2e6a32eb32761c210560e852405e2f865f958ddbe01027894f8b9c1b3433b9f0
17. 0x9a83be955a206deb65b995adfd92c58fa31c95fbbf926bd199d300e70b08b26d
18. 0x20704208aa6923d6b2450ef74ede87a6e0265d46447926038fe9506e9e154b2d
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae