Evidence row 751187

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://tabularium.matt-3e0.workers.dev/renew"
    ]
  ],
  "name": "Tabularium",
  "owner_address": "0x951bd91ad61d2d867f21b54d2f717d8fff4ad28a",
  "raw": {
    "accepts": [
      {
        "amount": "250000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "paymentFlow": "upfront",
          "version": "2"
        },
        "maxTimeoutSeconds": 60,
        "network": "eip155:8453",
        "payTo": "0x951BD91AD61d2D867F21b54D2f717D8FFF4aD28a",
        "scheme": "exact"
      }
    ],
    "description": "Extends the paying wallet's workspace by 30 days from the later of now or its expiry.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {},
            "bodyType": "json",
            "method": "POST",
            "type": "http"
          },
          "output": {
            "example": {
              "entry": {
                "hash": "<sha256 hex of this entry>",
                "key": "",
                "op": "renew",
                "prev": "<hash of entry 2>",
                "seq": 3,
                "ts": 1790000000000,
                "valueHash": "<sha256 hex of the value>"
              },
              "expiresAt": 1795184000000,
              "head": {
                "hash": "<entry hash>",
                "seq": 3,
                "sig": "<base64 Ed25519 signature over the head>"
              },
              "ok": true,
              "wallet": "0x..."
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "body": {
                  "properties": {},
                  "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"
            },
            "output": {
              "properties": {
                "example": {
                  "type": "object"
                },
                "type": {
                  "type": "string"
                }
              },
              "required": [
                "type"
              ],
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      }
    },
    "lastUpdated": "2026-10-27T20:18:16.641Z",
    "quality": {
      "l30DaysTotalCalls": 8,
      "l30DaysUniquePayers": 2,
      "lastCalledAt": "2026-10-27T20:18:16.357Z"
    },
    "resource": "https://tabularium.matt-3e0.workers.dev/renew",
    "serviceName": "Tabularium",
    "tags": [
      "agent-memory",
      "storage",
      "verifiable",
      "hash-chain",
      "key-value"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Extends the paying wallet's workspace by 30 days from the later of now or its expiry."
}

What the leaf hashes

{"body":"6ab184e53aaa7a3ec41e568a4c62f28e5b6e01cec762f8eeedc06f42352836d0","id":751187,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793178705247419,"prev":547664,"subject":"x402_bazaar:https://tabularium.matt-3e0.workers.dev/renew","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-10-28 (231336 rows).

1. 0x6d613591609e1d8e082434d9dc7864faef48c6942e6d9ff7286cb8ac5bfe15e0
2. 0x81df33e54e08afd55b729c1bec102b54b006bcc33115393fcc22dde9c5457258
3. 0x7242c385e67715ce2d948c7948139311690c9e97d9e0a693b70a0c6ab8f15efe
4. 0xbe2131c37b22bfa230b98b8245d373926f50b00329c3d26f36715a12c6468b34
5. 0x8e07fefbdf8c36218d206a1f9a11d42df6f40cbdf38bc960afb9ad4b07be7827
6. 0xf0d3c8f8bab8171428d9dc439b579d436814315c84ff19a2397fe974ea90d10f
7. 0xf0eb19c3835395e8f887dfb6102c975b96b5625a929a3b7e4efce0d0cb62c29c
8. 0x90006757de7dd6afa8f6ceabddc7e5c400879929bc788e02468119a9d6a00e29
9. 0x0da0c2a2ee3c4c0966770870296c90135d3ca0c1e75d6495d3bcbb92317e64ca
10. 0xc7842d6620e231cc8012345a55351f65946dfc793af220d2a59e8ab0d9bdae2e
11. 0x01d9a85eb33cb0c02dcfdd82f6775a30ea866ef2a89da712cc6c2508ffa4464d
12. 0x88845266740acfdcd21831fcd6c466a7b595d7dc73e7d99e39b94c1b4e60e20c
13. 0x7f155f68af02d8849db98e7526c24e043693127acc289e6a058a9d26a9c83335
14. 0x13a2df73da081eeb4e6752fd2a3d176d9f2a8d2dd01b46f18b266eb7116ace2f
15. 0xab4e84d781dccd579dcf5c47a356a4a2e6cac58a2aefdf3543a3fa15238fa4db
16. 0x74cf00e07b52415c2184cf20be69d195ed2725497a6892c2f3e449497c17d0ec
17. 0x7a743a0a09057bae687051274e1d45bf973bd36a1a4ba16a191b5d29e3bdfa2a
18. 0xe027395fafb7fc41921c42ca0542524ea22204cbd5908b70b27f3d5fb26f5d0f

Day root

0x2c19037464cc4c493624565f01775d6446fc78eaa118fc6865bfe2bfca9ff78e

Chained

0xd1d7dee8322ceff8f4c8d83aa1fe4a4466825c2af1c97dbde3d35db61234f7be

Published

On Arc Testnet, block 69584042: 0x8bae2b1d097834c8b458513862d70d29ee807e98dc2e863b27250131c15b35ae