Evidence row 751165

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://tabularium.matt-3e0.workers.dev/export"
    ]
  ],
  "name": "Tabularium",
  "owner_address": "0x951bd91ad61d2d867f21b54d2f717d8fff4ad28a",
  "raw": {
    "accepts": [
      {
        "amount": "10000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "paymentFlow": "upfront",
          "version": "2"
        },
        "maxTimeoutSeconds": 60,
        "network": "eip155:8453",
        "payTo": "0x951BD91AD61d2D867F21b54D2f717D8FFF4aD28a",
        "scheme": "exact"
      }
    ],
    "description": "Full signed history and current values of the paying wallet's workspace, verifiable offline.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "queryParams": {
              "since": 0
            },
            "type": "http"
          },
          "output": {
            "example": {
              "anchor": "0000000000000000000000000000000000000000000000000000000000000000",
              "entries": [
                {
                  "hash": "<sha256 hex of this entry>",
                  "key": "notes/today",
                  "op": "write",
                  "prev": "<hash of entry 2>",
                  "seq": 3,
                  "ts": 1790000000000,
                  "valueHash": "<sha256 hex of the value>"
                }
              ],
              "head": {
                "hash": "<entry hash>",
                "seq": 3,
                "sig": "<base64 Ed25519 signature over the head>"
              },
              "ok": true,
              "values": {
                "notes/today": {
                  "seq": 3,
                  "value": "Met the supplier; follow up Friday."
                }
              },
              "wallet": "0x..."
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "method": {
                  "enum": [
                    "GET"
                  ],
                  "type": "string"
                },
                "queryParams": {
                  "properties": {
                    "since": {
                      "description": "Only entries after this seq",
                      "minimum": 0,
                      "type": "integer"
                    }
                  },
                  "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": "2026-10-27T21:59:05.945Z",
    "quality": {
      "l30DaysTotalCalls": 48,
      "l30DaysUniquePayers": 2,
      "lastCalledAt": "2026-10-27T21:59:12.799Z"
    },
    "resource": "https://tabularium.matt-3e0.workers.dev/export",
    "serviceName": "Tabularium",
    "tags": [
      "agent-memory",
      "storage",
      "verifiable",
      "hash-chain",
      "key-value"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Full signed history and current values of the paying wallet's workspace, verifiable offline."
}

What the leaf hashes

{"body":"bcb4381f7148e7547ce279e522ab9a72baf4f49bb3b197b98f7dfbfa03c534aa","id":751165,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793178705103327,"prev":558353,"subject":"x402_bazaar:https://tabularium.matt-3e0.workers.dev/export","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. 0x175bff14bfddb73802a767a1bb04dadb0023774c9605346daed52fc23e808b1d
2. 0x2bf7afaa0602888c542dbb5e2e47d1df124a3cea07e4cbeabff30c651176fadd
3. 0x5db2405cc5762b963e18af33150ae20f3978d786a1829d3d5024f050d811c617
4. 0x093475759ad60c3e7ae4d40b710ad6ba65fd57e65dd8701ceb4239397a8cd91e
5. 0x34009ae0fd7c4e30c78aaaf6d1d9168940746c316d0c6aac6f63e9d160223633
6. 0x4d8c7f39b498f91b680049363a0b96f7921923f91a645191287bc40673538998
7. 0xb179ca7f9a05d125b6c426b9ab359951aea9b7a0690d5f47906965dee761f827
8. 0x032343f8ffb6ccebc539e2206c119a6955ed9069d9ea8fc89dc70a1d93aae5f9
9. 0x539b4c094ca91094283cd16ade625448bb9c06ae91c6125a789c16f6b8d1bba1
10. 0xc3c6192c653a6eb2e2ba12ef57f3b7577575a6cac7bc4caca7ddfeef5d839725
11. 0x876f536d5946518252ef4bcb4d2a661143264b71d96f3af9624102cdd660979c
12. 0xa2011ec090b04bf20aadc26c8c5a1305820a1b59c5874e13fd045a5320fbfce2
13. 0xc2a06f976a80758d370e062c6f956943e28355b887490c4b90873d317e990ba9
14. 0xdf8e9d4c523b87b2bea3cc4d461fe94e163080e98a261c596a4641e3fcaf7cc4
15. 0x4698ebc7cbcb2286f661b867355eb6a9183e884482ee16965889e886b17d19ac
16. 0x35e8995c30094446ec790423171382fccb377081b921295b0ae3840cc2c4f52c
17. 0xf078ea7d84d98dbeffed23d8e67b36751e60464ffd4cfdc005e0aa6f8cb9b459
18. 0xe027395fafb7fc41921c42ca0542524ea22204cbd5908b70b27f3d5fb26f5d0f

Day root

0x2c19037464cc4c493624565f01775d6446fc78eaa118fc6865bfe2bfca9ff78e

Chained

0xd1d7dee8322ceff8f4c8d83aa1fe4a4466825c2af1c97dbde3d35db61234f7be

Published

On Arc Testnet, block 69584042: 0x8bae2b1d097834c8b458513862d70d29ee807e98dc2e863b27250131c15b35ae