Evidence row 1765996

What was observed

{
  "count": 13,
  "tools": [
    {
      "description": "Look up an AI agent on Robinhood Chain by ERC-8004 agent ID, wallet address or name: its owner and agent wallet, Fivebar Score (as a seller: how many independent operators pay it, with bundled buyer wallets counted once; as a buyer: how many real sellers it pays; 'not scored yet' with progress when the evidence is thin, never a 0), screened x402 record (passed, not counted yet, removed for wash patterns), flags and clusters. If a known operator runs it, says so and points to the $1 full operator report (a separate x402 call). Use before paying or trusting an agent.",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {
          "query": {
            "description": "Agent ID (e.g. 7622), wallet address or name",
            "type": "string"
          }
        },
        "required": [
          "query"
        ],
        "type": "object"
      },
      "name": "agent_lookup"
    },
    {
      "description": "Before paying an x402 seller on Robinhood Chain, check its address against Fivebar's wash screen: whether it's among the sellers whose payments passed in the last 24 hours, its buyers and volume, and its agent record if it's a registered agent.",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {
          "address": {
            "type": "string"
          }
        },
        "required": [
          "address"
        ],
        "type": "object"
      },
      "name": "check_seller"
    },
    {
      "description": "ETH price in USD on Robinhood Chain (Chainlink feed, or the deepest WETH/USDG pool if the feed is unavailable).",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {},
        "type": "object"
      },
      "name": "eth_price"
    },
    {
      "description": "One Hyperliquid perpetual market by coin (e.g. BTC, ETH, HYPE): mark and oracle price, 24h change, funding, open interest, volume and max leverage.",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {
          "coin": {
            "type": "string"
          }
        },
        "required": [
          "coin"
        ],
        "type": "object"
      },
      "name": "perp_quote"
    },
    {
      "description": "Perpetual futures markets on Hyperliquid: mark price, 24h change, funding (hourly and yearly), open interest, 24h volume and max leverage. Sort by volume, open interest or funding; filter by coin.",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {
          "limit": {
            "description": "Default 20, max 100",
            "type": "number"
          },
          "query": {
            "description": "Coin, e.g. BTC",
            "type": "string"
          },
          "sort": {
            "description": "Default volume",
            "enum": [
              "volume",
              "openInterest",
              "funding"
            ],
            "type": "string"
          }
        },
        "type": "object"
      },
      "name": "perps_markets"
    },
    {
      "description": "Price of a Robinhood stock token on Robinhood Chain, by symbol (e.g. AAPL) or token address: the Chainlink feed price per token (dividends and splits included through the multiplier), how fresh it is, the on-chain DEX price where a Uniswap pool exists, and which sessions it trades in. Equity feeds follow US market hours 24/5 and hold their last price when markets are closed.",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {
          "symbol": {
            "description": "Ticker like AAPL, or the token address",
            "type": "string"
          }
        },
        "required": [
          "symbol"
        ],
        "type": "object"
      },
      "name": "stock_quote"
    },
    {
      "description": "List the tokenized stocks Robinhood issues on Robinhood Chain (about 100: AAPL, TSLA, NVDA...): symbol, name, token address, shares-per-token multiplier, which trading sessions they trade in, and whether a Chainlink price feed exists. Filter with query (symbol or name).",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {
          "limit": {
            "description": "Default 200",
            "type": "number"
          },
          "query": {
            "description": "Part of a symbol or company name, e.g. 'NVDA' or 'apple'",
            "type": "string"
          }
        },
        "type": "object"
      },
      "name": "stocks_list"
    },
    {
      "description": "Build a swap for your own wallet to sign and send, on Robinhood Chain, Base, Ethereum, Arbitrum or Solana. Returns a firm quote (amount out, minimum, every fee) and the unsigned transactions in order. EVM chains: an exact-amount approval when needed, then the swap. Solana: one versioned transaction (base64) your wallet pays for and signs. Fivebar's 0.5% fee is paid inside the swap; Fivebar never sees your keys or holds your funds. Wallets on the US sanctions list are refused. xStocks are coming soon.",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {
          "amount": {
            "description": "How much of the sell token, in whole units, e.g. '100' or '0.25'",
            "type": "string"
          },
          "buy": {
            "description": "Token to buy, same forms as sell",
            "type": "string"
          },
          "chain": {
            "description": "Default robinhood (solana when given Solana tokens)",
            "enum": [
              "robinhood",
              "solana",
              "base",
              "ethereum",
              "arbitrum"
            ],
            "type": "string"
          },
          "sell": {
            "description": "Token to sell: ETH, WETH, USDG (Robinhood Chain), USDC or USDT (Base, Ethereum, Arbitrum), SOL, USDC, USDT or a mint (Solana), or a token address",
            "type": "string"
          },
          "slippage_pct": {
            "description": "Max slippage in percent, default 1",
            "type": "number"
          },
          "taker": {
            "description": "Your wallet address (0x..., or a Solana wallet): it signs and sends the transactions and receives the tokens",
            "type": "string"
          }
        },
        "required": [
          "sell",
          "buy",
          "amount",
          "taker"
        ],
        "type": "object"
      },
      "name": "swap_build"
    },
    {
      "description": "What swapping one token for another would give right now, on Robinhood Chain (default), Solana (SOL, USDC, USDT and memecoins by mint address; picked automatically for those), Base, Ethereum or Arbitrum (ETH, WETH, USDC, USDT or a token address; pass chain). EVM chains: the best route across Uniswap v2/v3/v4, PancakeSwap, SushiSwap, Aerodrome, Curve and other DEXes. Solana: the best route across Solana DEXes. Routed by 0x, with the amount out and the minimum after slippage, the USD value, and every fee shown separately (Fivebar's 0.5%, the router's fee where it applies, and network gas). Flags token taxes and, if you pass your wallet as taker, a missing balance or approval. xStocks are coming soon: use stock_quote for their prices. Quote only: nothing is signed or sent; to swap, use swap_build.",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {
          "amount": {
            "description": "How much of the sell token, in whole units, e.g. '100' or '0.25'",
            "type": "string"
          },
          "buy": {
            "description": "Token to buy, same forms as sell",
            "type": "string"
          },
          "chain": {
            "description": "Default robinhood (solana when given Solana tokens)",
            "enum": [
              "robinhood",
              "solana",
              "base",
              "ethereum",
              "arbitrum"
            ],
            "type": "string"
          },
          "sell": {
            "description": "Token to sell. Robinhood Chain: ETH, USDG, WETH or a token address. Solana: SOL, USDC, USDT or a mint address",
            "type": "string"
          },
          "slippage_pct": {
            "description": "Max slippage in percent, default 1",
            "type": "number"
          },
          "taker": {
            "description": "Optional: the wallet that would swap (0x address, or a Solana wallet on solana)",
            "type": "string"
          }
        },
        "required": [
          "sell",
          "buy",
          "amount"
        ],
        "type": "object"
      },
      "name": "swap_quote"
    },
    {
      "description": "Price and market cap of any token by its contract address. A 0x address is read on Robinhood Chain by default (Uniswap v3 and v4 pools; when the best pool is thin, under $2,000 in range, or missing, the price comes from a $10 buy routed by 0x and a warning says so); pass chain base, ethereum or arbitrum for those chains. A Solana mint is priced from a small USDC buy routed across Solana DEXes.",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {
          "address": {
            "description": "Token contract address (0x...) or a Solana mint",
            "type": "string"
          },
          "chain": {
            "description": "For 0x addresses: default robinhood",
            "enum": [
              "robinhood",
              "base",
              "ethereum",
              "arbitrum",
              "solana"
            ],
            "type": "string"
          }
        },
        "required": [
          "address"
        ],
        "type": "object"
      },
      "name": "token_quote"
    },
    {
      "description": "What could go wrong buying a token, by contract address, on Solana, Robinhood Chain, Base, Ethereum or Arbitrum. Solana: whether someone can still mint more or freeze holders, Token-2022 traps (transfer fees, a permanent delegate, transfer hooks), and how concentrated the top holders are. EVM: buy and sell taxes and whether the contract still has an owner. Both: a $100 buy-then-sell test through the router (can you sell it, and what's lost). Returns a verdict (high, caution or low) and the reasons. Not a guarantee.",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {
          "address": {
            "description": "The token's contract address (0x...) or Solana mint",
            "type": "string"
          },
          "chain": {
            "description": "Default robinhood for 0x addresses, solana for mints",
            "enum": [
              "robinhood",
              "solana",
              "base",
              "ethereum",
              "arbitrum"
            ],
            "type": "string"
          }
        },
        "required": [
          "address"
        ],
        "type": "object"
      },
      "name": "token_risk"
    },
    {
      "description": "Every token a wallet holds, with USD values, across Robinhood Chain, Base, Arbitrum and Ethereum for a 0x address (or one chain with chain), or on Solana for a Solana address. Includes ETH or SOL, stablecoins, Robinhood stock tokens and memecoins. Values: $1 for stablecoins, the ETH price for ETH and WETH, Chainlink for stock tokens, Uniswap pools on Robinhood Chain (a router buy when the pool is thin), a small buy routed by 0x elsewhere. The biggest positions carry a quick risk verdict (run token_risk for the full check). Tokens that look like airdropped spam are hidden and counted; tokens with no route to sell are listed apart. If the router is busy, a holding is valued from its last good quote (at most 15 minutes old) and marked priceAsOf.",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {
          "address": {
            "description": "Wallet address: 0x... or a Solana wallet",
            "type": "string"
          },
          "chain": {
            "description": "Default: all four EVM chains for a 0x address, solana for a Solana address",
            "enum": [
              "all",
              "robinhood",
              "base",
              "arbitrum",
              "ethereum",
              "solana"
            ],
            "type": "string"
          }
        },
        "required": [
          "address"
        ],
        "type": "object"
      },
      "name": "wallet_holdings"
    },
    {
      "description": "Fivebar's index of x402 payments (USDG transferWithAuthorization) on Robinhood Chain: the last 24 hours and recent days, screened before they count. Volume that doesn't pass is split two ways: flaggedUsd shows a wash pattern (a seller paying itself, circular payments, two wallets paying 90%+ of a seller); tooFewBuyersUsd only went to sellers with under 10 distinct buyers, which isn't evidence of washing, just not enough to judge yet. topSellers lists sellers that passed. Updated every 3 hours.",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {},
        "type": "object"
      },
      "name": "x402_stats"
    }
  ]
}

What the leaf hashes

{"body":"e7a452aa15ede1d5d1d6625f33048b7041665d0bb24dad38489049855664796d","id":1765996,"kind":"mcp.tools","method":"probe.mcp/1","observed_us":1793537869938896,"prev":1731339,"subject":"4c9706b8-53f8-4af5-8bd5-5a617cf4de87","subject_kind":"endpoint"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-11-01 (302406 rows).

1. 0x1e7c29239b2270af69987d0f1836293963dee966875b3c69da1f2fbdea75c169
2. 0x9cb5e0ebde3890830003fb076d8b3399681f163b2ae27831508665a982ebf9c5
3. 0x6e453faaab86ad1e5a3959b0b36463b629d2e1863a993e665a8d7ca33fcd48f3
4. 0xa4824ff2af5474c2905ca1b336597e80c2656fb9af49fdecde4ebf7b58138a9d
5. 0xcae72a3bf4b0bcf159c40fd139d099d90bbecb399c4a6e4ebeb6677967451c51
6. 0xca3329294d0e838f442aa1ec00de5db3c614d364138ef57f6017f1afb16406f0
7. 0xf344d51e5daa21056c3b8a9ff1060418805b274187aac86c9bc51e7f655b7a56
8. 0x574cf63ae68c0fef27d6e4b4b798b15f8f9642209960751185a35ce53ea1f110
9. 0x136b3fdfd5e16a723a89e880cf37a349913a06cff384797c3b3085b5b61aa124
10. 0x04b5d01ceb2f416c670f385ab036451b4ac09b5de2bffde0e9a342c1b947ccca
11. 0x3d983cbd3b9d176614b20025632e28a49c5d6496b811f38a0718938105e4f9cd
12. 0xc406b2ad2b09fed9c24c44f3ea252b9d83650f7be0ad7c06e82029d1bd2fb859
13. 0xae521539711ad5a91adbe0dd002003819ce70e53b6a96152851758fc41b75098
14. 0x175afd1319b72670e83bf74eef6f87ab2173061f5bacdfe981a6b0789c963022
15. 0xb9d6fdc8e6fb3f4feffa2c18849d74fc34d8708b574a778ae149241a90aaf20b
16. 0xa856ad79e6f29a2b5516257f0d4817172cca11251fe2e7e8f3911b105fe2b622
17. 0x02b3554752e71a19b12d7a76dbff436e85387226ceec89fdebdcdaf0122c2932
18. 0x1973893697931b7512ae5dc1a3c92ef92f633ae3574dce9029a35b5e94d2d364
19. 0x3315fd2757fdd435852cc277377234a3f3909a6d2a089d0e36f6d59aacfda910

Day root

0x7fa2cba1cf3d6b35630896f5fe1a650adb307ea2c376e80a5f2d9276b7cb5ab3

Chained

0x577ff89ba012beeff3197bcff7fa86752074bdf54205a24359cc437be2a952a4

Published

On Arc Testnet, block 70262758: 0x435bc1b9331471d72e1998f2e420983b5189d4da65ffbd6f27ef40daf5e1ea90