Evidence row 72833

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://crypto-market-data.zafermemon87.workers.dev/mcp"
    ]
  ],
  "name": "crypto-market-data.zafermemon87.workers.dev/mcp",
  "owner_address": "0xa41015022322640f03a895bc439da80ddfd73954",
  "raw": {
    "accepts": [
      {
        "amount": "3000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:8453",
        "payTo": "0xa41015022322640f03a895bc439da80ddfd73954",
        "scheme": "exact"
      }
    ],
    "description": "Bid-ask spread, order-book imbalance, buyer share of the last 15 minutes and volume versus normal per coin. Costs USD 0.003 per call, paid with x402 (USDC on Base); calls that fail are not charged.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "description": "Bid-ask spread, order-book imbalance, buyer share of the last 15 minutes and volume versus normal per coin. Costs USD 0.003 per call, paid with x402 (USDC on Base); calls that fail are not charged.",
            "example": {
              "tokens": "BTC,ETH"
            },
            "inputSchema": {
              "properties": {
                "tokens": {
                  "description": "Comma-separated tickers, e.g. BTC,ETH,SOL (up to 50). Empty means all top 50.",
                  "type": "string"
                }
              },
              "type": "object"
            },
            "toolName": "orderbook",
            "transport": "streamable-http",
            "type": "mcp"
          },
          "output": {
            "example": {
              "as_of": "2026-10-23T20:03:00+05:30",
              "charged": true,
              "data_age_s": 60,
              "engine": "data-1.0",
              "imbalance_means": "-1 = the sell side of the order book is far heavier, +1 = the buy side is",
              "note": "Public market data, refreshed every minute. Not financial advice.",
              "plain": "2 coins. Most lopsided book: BTC (-0.033).",
              "price_usd": null,
              "rows": [
                {
                  "buyer_share_15m": 0.615,
                  "orderbook_imbalance": -0.033,
                  "spread_bps": 0.0012,
                  "token": "BTC",
                  "volume_15m_vs_normal": 1.58
                },
                {
                  "buyer_share_15m": 0.588,
                  "orderbook_imbalance": 0.023,
                  "spread_bps": 0.0419,
                  "token": "ETH",
                  "volume_15m_vs_normal": 1.65
                }
              ],
              "snapshot_seal": "eb08dce6d854951431a0fb2732282227e1d954ec072422c9bfc5bee2f3ed695f",
              "tool": "orderbook"
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "description": {
                  "type": "string"
                },
                "example": {
                  "type": "object"
                },
                "inputSchema": {
                  "type": "object"
                },
                "toolName": {
                  "type": "string"
                },
                "transport": {
                  "enum": [
                    "streamable-http"
                  ],
                  "type": "string"
                },
                "type": {
                  "const": "mcp",
                  "type": "string"
                }
              },
              "required": [
                "type",
                "toolName",
                "inputSchema"
              ],
              "type": "object"
            },
            "output": {
              "properties": {
                "example": {
                  "type": "object"
                },
                "type": {
                  "type": "string"
                }
              },
              "required": [
                "type"
              ],
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      }
    },
    "lastUpdated": "2026-10-24T04:11:46.281Z",
    "quality": {
      "l30DaysTotalCalls": 1,
      "l30DaysUniquePayers": 1,
      "lastCalledAt": "2026-10-24T04:11:45.733Z"
    },
    "resource": "https://crypto-market-data.zafermemon87.workers.dev/mcp#orderbook#orderbook",
    "type": "mcp",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Bid-ask spread, order-book imbalance, buyer share of the last 15 minutes and volume versus normal per coin. Costs USD 0.003 per call, paid with x402 (USDC on Base); calls that fail are not charged."
}

What the leaf hashes

{"body":"16ae66a73b1518347acfadc0d7018f1e61dc5c6f09d85f22c551fa0513ebab74","id":72833,"kind":"listing","method":"baseline/1","observed_us":1793025486528153,"prev":null,"subject":"x402_bazaar:https://crypto-market-data.zafermemon87.workers.dev/mcp#orderbook#orderbook","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. 0xf45fe0b1e6e425f67cec05ff2ede9aea60326d042d96b181c1e3705f4df78779
2. 0xdeb47a6bf1b9cd6d2a125cd336a7e0115928da005ad8b8f146c1f20bb2bbc8b8
3. 0xbab6a35ed7491b6049e5b4f5e0680e2c3628b9a55e13b79d96d9826c93ee6e8b
4. 0x072bde0aa0415516cc659653146348f45d592eb68336d2beced143e5153410a3
5. 0xa8ff55b5823da297586140e69ccde65fc2c7cd23bf93db7d5415f0bce359e046
6. 0x51d4f53a1a4aad95e8e2963dba200073e7ae03c69c08c73c015ad67df366f39b
7. 0x057b88fc8f990b2b1030957dc70ad8d961d8458277753d4b08bffd67c62d53ad
8. 0xc336b470ade8fbe30e13f0912f78a1e35b9d21aae8e05cfb891d7d283eb7b516
9. 0xa7b6ff8d81f5ca203875b404feff22c444e9d0e4c09e8d3ae9d234fa3c209aa6
10. 0x83d1e4b5cfd85331032f7b8c5254bddcd842c27f55e4d3baadad57af6db6c793
11. 0x07709318feb0c1102a4f704a544c82a5c58ec388fbdac0965060c1f5091cc976
12. 0x86ae35463d854f3938d986999aa8497e14f0ba2aa6f39a269e1e6d1134f9b847
13. 0x79695e4356ea25a2b58265a824698704cd2c743099ce2dca9e41384ce8f1a8c5
14. 0xd769d41500075835c3b2f9184d223699fb983fd05c29fbcb44d964abc7ee380d
15. 0x68d296b1e00b4899fb83c3fba36fffaefa311eac2903067dbebfe776a12b4a9a
16. 0x5fb5dda563336cd1bc1b9f44c52b76237ae72ed2145cb9290f39f304ca7dd678
17. 0x74a0a08e4e7ab9aa5bfbead33dec7e1c7e8e364cff69a63720d764bbe987aadc

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae