Evidence row 1263104

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://api.usenami.io/v1/perp/arbitrage/funding-signal"
    ]
  ],
  "name": "Usenami",
  "owner_address": "0x1538726707212f4db3eb67cec0910422a310475c",
  "raw": {
    "accepts": [
      {
        "amount": "5000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:8453",
        "payTo": "0x1538726707212F4dB3EB67cEc0910422A310475c",
        "scheme": "exact"
      }
    ],
    "description": "Funding-arb SIGNAL for crypto perpetuals — the cross-venue funding spread per pair, set against public round-trip taker fees, with periods-to-breakeven, ranked by the 8h-normalized spread. Liquidity is not assessed: depth sizing was withdrawn on 2026-09-16, so check the books before sizing. A derived outcome, not a profit forecast.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "queryParams": {
              "limit": {
                "description": "Max results. Default 50, max 100.",
                "required": false,
                "type": "integer"
              },
              "min_diff": {
                "description": "Absolute funding spread threshold. Default 0.0001.",
                "required": false,
                "type": "number"
              }
            },
            "type": "http"
          },
          "output": {
            "example": {
              "count": 1,
              "methodology": "Gross funding spread against round-trip taker fees; liquidity not assessed.",
              "opportunities": [
                {
                  "funding_periods_to_breakeven": 2.5,
                  "gross_funding_spread_bps": 8,
                  "long_venue": "okx",
                  "round_trip_fee_bps": 20,
                  "short_venue": "binance",
                  "signal_score": 8,
                  "ticker": "BTC",
                  "updated_at": "2026-06-17T17:03:12Z",
                  "venues_count": 18
                }
              ]
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "properties": {
                "method": {
                  "type": "string"
                },
                "type": {
                  "type": "string"
                }
              },
              "required": [
                "type",
                "method"
              ],
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      }
    },
    "lastUpdated": "2026-10-30T09:04:53.56Z",
    "quality": {
      "l30DaysTotalCalls": 1,
      "l30DaysUniquePayers": 1,
      "lastCalledAt": "2026-10-30T09:04:52.656Z"
    },
    "resource": "https://api.usenami.io/v1/perp/arbitrage/funding-signal",
    "serviceName": "Usenami",
    "tags": [
      "funding",
      "perpetual",
      "trading",
      "multi-venue",
      "market-data"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Funding-arb SIGNAL for crypto perpetuals — the cross-venue funding spread per pair, set against public round-trip taker fees, with periods-to-breakeven, ranked by the 8h-normalized spread. Liquidity is not assessed: depth sizing was withdrawn on 2026-09-16, so check the books before sizing. A derived outcome, not a profit forecast."
}

What the leaf hashes

{"body":"ff8a9e4febafc58e0fb71bb89f10ac4834d3256bebb91582134fd9a756cc1449","id":1263104,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793385612462000,"prev":null,"subject":"x402_bazaar:https://api.usenami.io/v1/perp/arbitrage/funding-signal","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-10-30 (243099 rows).

1. 0x80c6fa6c5d43085dc6f10ff12f61f9237940e6d0f71ce1f4acb71db5ce9ac15f
2. 0x10c5ae06547073e94ec3c74e06862ea0972ac73c5123372f498dccf27ed00288
3. 0xd7f26755a073eecca632062025307ee4f7e5db5b07604bb403b342c8a20a2775
4. 0xbaa4d090c959c73610ee54f968f2e82b75c2422f5c75feaea98bef9bb91b819c
5. 0xfb96902cb791afcdec8aebf789c3d118e88bf3cc6ebe61b01c4d314008aa460c
6. 0xb4a3ee907ff53e607b13748f5b8d626ba7613c35f169cb0990fb6b476c549c7c
7. 0xe8b2fc572b90931d744d632bd1a3e491922d8a6a604b93b716141ae1a353ba63
8. 0x31e1e48e89df9d643e76d62bcc52f081918081656682bc74ac9e0c4c8336e578
9. 0xee41360717687115eb4e8963042fdca6d42f7ee1d68da2a477d082f68638729e
10. 0xfbbf53e4c1a429496869d5bf559f6d7ab7114c2ec3b675c3819d9338c8ca8607
11. 0x5e056533ca2e064884f412483b3dda332cedb430996ef093d3ecf1eb9e8ab40c
12. 0x6b8cfabb21174b809f902161d13bf663d4c6738870d704105b972ec978b90ced
13. 0xa7d56640df9ea5dff8b1806e8b12302229aca5a856e7e8485fd58e4585190f8d
14. 0x98147b4434f11be9b2162fe0bf2cff64bd30ca1bfe5cd0edf25228078b678708
15. 0x235114e50a987e65d728b9ef8b5978846cd7c01f22effc55dd604c388ce359ec
16. 0xdbaaffa44665d1fa60d33d2c4075bd87629b76d01a6ee63e621e78590303b56d
17. 0xffe660edb9e5c6e3449a49454634c3e7b2f9fe703e5697f723b021735647ab7e
18. 0x30a81d8fcef4e8f9e2877c62796cfc5612fc1b251127d531dee28f8dbd5c5147

Day root

0x0826c7ad6039e06a2360ca0a4a3a4fe7f2626c6dc19f71a37599386f78b39875

Chained

0x36b4c8a1063758f0b8765fa1bdf75fa92fb543cc183add3e261880ee2bd1f822

Published

On Arc Testnet, block 69923247: 0x8704744146c6967c8abc9e9a99de4db7283b29e840922ea83a69b6fe776e6861