Evidence row 259372

What was observed

{
  "count": 14,
  "tools": [
    {
      "description": "Real on-chain context for a wallet address: contract vs EOA, native balance, transaction count. Free via MCP; the same data is also available pay-per-call at https://lab.paidapis.net/api/enrich-address for production/agentic use.",
      "inputSchema": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "additionalProperties": false,
        "properties": {
          "address": {
            "description": "Address to look up.",
            "type": "string"
          }
        },
        "required": [
          "address"
        ],
        "type": "object"
      },
      "name": "enrich_address"
    },
    {
      "description": "Persisted, doubly-signed log of past oracle attestations from this server. Free via MCP; the same data is also available pay-per-call at https://lab.paidapis.net/api/attestation-log for production/agentic use.",
      "inputSchema": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "additionalProperties": false,
        "properties": {
          "limit": {
            "description": "Max entries to return, 1-100 (default 20).",
            "maximum": 100,
            "minimum": 1,
            "type": "integer"
          }
        },
        "type": "object"
      },
      "name": "get_attestation_log"
    },
    {
      "description": "Same gas + ETH/USD data, priced by requested freshness: cached (cheap) or live (guaranteed current). Free via MCP; the same data is also available pay-per-call at https://lab.paidapis.net/api/freshness-priced-data for production/agentic use.",
      "inputSchema": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "additionalProperties": false,
        "properties": {
          "freshness": {
            "description": "Either \"cached\" (default) or \"live\".",
            "enum": [
              "cached",
              "live"
            ],
            "type": "string"
          }
        },
        "type": "object"
      },
      "name": "get_freshness_priced_data"
    },
    {
      "description": "Real gas price on Ethereum vs Base side by side, with delta, ratio, and estimated USD cost of a standard transfer on each chain. Free via MCP; the same data is also available pay-per-call at https://lab.paidapis.net/api/gas-comparator for production/agentic use.",
      "inputSchema": {
        "properties": {},
        "type": "object"
      },
      "name": "get_gas_comparator"
    },
    {
      "description": "Raw Ethereum gas price samples over a date range, JSON or CSV, priced by real row count (min $0.005, max 24h range). Free via MCP; the same data is also available pay-per-call at https://lab.paidapis.net/api/gas-history-export for production/agentic use.",
      "inputSchema": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "additionalProperties": false,
        "properties": {
          "format": {
            "description": "Either \"json\" (default) or \"csv\".",
            "enum": [
              "json",
              "csv"
            ],
            "type": "string"
          },
          "from": {
            "description": "ISO 8601 range start.",
            "type": "string"
          },
          "to": {
            "description": "ISO 8601 range end.",
            "type": "string"
          }
        },
        "required": [
          "from",
          "to"
        ],
        "type": "object"
      },
      "name": "get_gas_history_export"
    },
    {
      "description": "Rolling average/min/max/volatility/trend for Ethereum gas price over a window. Free via MCP; the same data is also available pay-per-call at https://lab.paidapis.net/api/gas-metrics for production/agentic use.",
      "inputSchema": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "additionalProperties": false,
        "properties": {
          "windowMinutes": {
            "description": "Window size in minutes (default 10).",
            "exclusiveMinimum": 0,
            "type": "number"
          }
        },
        "type": "object"
      },
      "name": "get_gas_metrics"
    },
    {
      "description": "Recent USDC transfers on Base above a value threshold. Free via MCP; the same data is also available pay-per-call at https://lab.paidapis.net/api/large-usdc-transfers for production/agentic use.",
      "inputSchema": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "additionalProperties": false,
        "properties": {
          "minUsd": {
            "description": "Minimum USD value to include (default 10000).",
            "exclusiveMinimum": 0,
            "type": "number"
          }
        },
        "type": "object"
      },
      "name": "get_large_transfers"
    },
    {
      "description": "Gas price + ETH/USD price + latest Base block in one call. Optional ?ref=<address> pays that wallet a referral cut. Free via MCP; the same data is also available pay-per-call at https://lab.paidapis.net/api/market-snapshot for production/agentic use.",
      "inputSchema": {
        "properties": {},
        "type": "object"
      },
      "name": "get_market_snapshot"
    },
    {
      "description": "Ethereum and Base gas price and block data, cleaned into one consistent schema per chain. Free via MCP; the same data is also available pay-per-call at https://lab.paidapis.net/api/normalized-gas for production/agentic use.",
      "inputSchema": {
        "properties": {},
        "type": "object"
      },
      "name": "get_normalized_gas"
    },
    {
      "description": "ETH/USD price with retry-with-backoff and last-known-good cache fallback. Free via MCP; the same data is also available pay-per-call at https://lab.paidapis.net/api/reliable-eth-price for production/agentic use.",
      "inputSchema": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "additionalProperties": false,
        "properties": {
          "simulateFailureRate": {
            "description": "0-1, simulates upstream failures to demo the fallback path.",
            "maximum": 1,
            "minimum": 0,
            "type": "number"
          }
        },
        "type": "object"
      },
      "name": "get_reliable_eth_price"
    },
    {
      "description": "Trust score from real on-chain activity plus our own ledger of settled payments from this address. Free via MCP; the same data is also available pay-per-call at https://lab.paidapis.net/api/reputation for production/agentic use.",
      "inputSchema": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "additionalProperties": false,
        "properties": {
          "address": {
            "description": "Address to score.",
            "type": "string"
          }
        },
        "required": [
          "address"
        ],
        "type": "object"
      },
      "name": "get_reputation"
    },
    {
      "description": "Wikipedia article lead section, converted from rendered HTML into clean, tag-free JSON. Free via MCP; the same data is also available pay-per-call at https://lab.paidapis.net/api/wiki-summary for production/agentic use.",
      "inputSchema": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "additionalProperties": false,
        "properties": {
          "title": {
            "description": "Wikipedia article title.",
            "type": "string"
          }
        },
        "required": [
          "title"
        ],
        "type": "object"
      },
      "name": "get_wiki_summary"
    },
    {
      "description": "Checks whether a Base transaction hash has confirmed on-chain, returns a signed EIP-191 attestation. Free via MCP; the same data is also available pay-per-call at https://lab.paidapis.net/api/verify-tx for production/agentic use.",
      "inputSchema": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "additionalProperties": false,
        "properties": {
          "txHash": {
            "description": "32-byte transaction hash to check.",
            "type": "string"
          }
        },
        "required": [
          "txHash"
        ],
        "type": "object"
      },
      "name": "verify_tx"
    },
    {
      "description": "Checks a Base tx hash against 3 independent RPC providers in parallel; only signs an attestation if all agree. Free via MCP; the same data is also available pay-per-call at https://lab.paidapis.net/api/verify-tx-multi-source for production/agentic use.",
      "inputSchema": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "additionalProperties": false,
        "properties": {
          "txHash": {
            "description": "32-byte transaction hash to check.",
            "type": "string"
          }
        },
        "required": [
          "txHash"
        ],
        "type": "object"
      },
      "name": "verify_tx_multi_source"
    }
  ]
}

What the leaf hashes

{"body":"e622d30020c245ca7c9be15225513d3d57e472a0f61ef7604436232790d3a78b","id":259372,"kind":"mcp.tools","method":"probe.mcp/1","observed_us":1793030843646887,"prev":null,"subject":"579b705a-b4d2-49f8-a655-5b48d30c6d6e","subject_kind":"endpoint"}

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. 0x944b390dfb4e4c8d59c10273542a254892cba73bf05fecfeed97f32990a04faf
2. 0x72bbc34bf00aa85b5bb04320f9619f6587e2d34681da3620d879171d5de57244
3. 0x16d7546804a7703e028d45423b07055fffb8b640a9239cd04692106b521428c2
4. 0x9a45bb103bde414345f63ffc6a35b20dde56e99898a0ef0b9ab99c92c67e1b61
5. 0xdd54c94cf81fdff188bb2d3366931b8c38fa4586b2899d28af78d9021a5a69ee
6. 0x23b62b1b6512bdd687131f74353c531b1e7195fd4de37b90ad4b56960a8ae735
7. 0xad334d0752b8874ced026608d1c873774a0144926928ea4761da27b99aa91004
8. 0x969593269256ed10e929105466f9d3395e720e1c0bbd3aadf0b576e1ba1d544b
9. 0x9340aeea5d599e0526a8a9603c498278d0309e78d3629f8079b93f780eec2e46
10. 0xac3b15fc68e650d74723c2a5743b930239735167e187d93b236aa87c8c2fc531
11. 0xcd52656344e352446858a7d55feb9336b07dd3ad98715c122aaf69d4eb3d6ca8
12. 0x3b55f6d5345bce3e1332e014f19526d25328fb6283d3518837a015c3621c0d1c
13. 0x45c1d3062bbe98a6b1540c7e2ccf6516eedd6ef07fdfeb1ba77ee6272970447c
14. 0xf0edabbb9ba0d643e5505d19d07637eb6f6aed0a1c7356af43ae7d84ae9ef0c5
15. 0xf0bd63870f0bb378fa300bd33563050dcb7b3e02b44eb3ee550c1c534ec4b246
16. 0x1ac20d30773e1f4f2f811540e9a99b5cca9177c9e2e029acc0d80cf3f1d11f0f
17. 0xd21942ae3214eff88e08ab04884fd4b11958b51af9a0741b7668e2d07a2c56c9
18. 0x9a9024edb5069d88a324facb310a5ce8e495214bbaa968f077bede437390194f
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae