Evidence row 1261571

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://agents.avasis.ai/v1/tip/base-gas"
    ]
  ],
  "name": "Avasis Agent Platform",
  "owner_address": "0x6264191d6dd5427435b5e829077842e130ef1fc8",
  "raw": {
    "accepts": [
      {
        "amount": "2000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 120,
        "network": "eip155:8453",
        "payTo": "0x6264191D6dD5427435B5E829077842e130Ef1fc8",
        "scheme": "exact"
      }
    ],
    "description": "Base (chain 8453) gas tip for agents that send transactions: latest block number and age, base fee, eth_gasPrice, eth_maxPriorityFeePerGas and a suggested maxFeePerGas (2x base fee + priority), from one batched RPC call every 2 s. Long-poll with ?since=<seq>&wait=25. Prepaid meter price $0.0002/call (packs at /v1/meter); SSE at /v1/stream/tips.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "queryParams": {},
            "type": "http"
          },
          "output": {
            "example": {
              "ageMs": 420,
              "changed": true,
              "data": {
                "blockAgeSeconds": 1,
                "blockNumber": 37400000,
                "chain": "base",
                "chainId": 8453,
                "gwei": {
                  "baseFee": 0.0021,
                  "gasPrice": 0.0031,
                  "maxPriorityFee": 0.001,
                  "suggestedMaxFee": 0.0052
                }
              },
              "observedAt": "2026-10-29T12:00:00.000Z",
              "seq": 812,
              "stale": false,
              "topic": "base-gas"
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "method": {
                  "enum": [
                    "GET"
                  ],
                  "type": "string"
                },
                "queryParams": {
                  "additionalProperties": false,
                  "properties": {
                    "since": {
                      "description": "long-poll: the seq you already have; answers as soon as a newer value exists",
                      "minimum": 0,
                      "type": "integer"
                    },
                    "wait": {
                      "description": "long-poll: seconds to wait for a newer value (0..25); with a prepaid token an unchanged answer is free",
                      "maximum": 25,
                      "minimum": 0,
                      "type": "integer"
                    }
                  },
                  "type": "object"
                },
                "type": {
                  "const": "http",
                  "type": "string"
                }
              },
              "required": [
                "type",
                "method"
              ],
              "type": "object"
            },
            "output": {
              "properties": {
                "example": {
                  "properties": {
                    "data": {
                      "type": "object"
                    },
                    "observedAt": {
                      "type": "string"
                    },
                    "seq": {
                      "type": "integer"
                    },
                    "topic": {
                      "type": "string"
                    }
                  },
                  "required": [
                    "topic",
                    "seq",
                    "data"
                  ],
                  "type": "object"
                },
                "type": {
                  "type": "string"
                }
              },
              "required": [
                "type"
              ],
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      },
      "builder-code": {
        "info": {
          "a": "bc_d5i1omim"
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "additionalProperties": false,
          "properties": {
            "a": {
              "description": "App builder code",
              "pattern": "^[a-z0-9_]{1,32}$",
              "type": "string"
            },
            "s": {
              "description": "Service builder codes",
              "items": {
                "pattern": "^[a-z0-9_]{1,32}$",
                "type": "string"
              },
              "maxItems": 11,
              "type": "array"
            },
            "w": {
              "description": "Wallet builder code",
              "pattern": "^[a-z0-9_]{1,32}$",
              "type": "string"
            }
          },
          "type": "object"
        }
      }
    },
    "lastUpdated": "2026-10-30T15:15:00.311Z",
    "quality": {
      "l30DaysTotalCalls": 2,
      "l30DaysUniquePayers": 1,
      "lastCalledAt": "2026-10-30T15:15:00.102Z"
    },
    "resource": "https://agents.avasis.ai/v1/tip/base-gas",
    "serviceName": "Avasis Agent Platform",
    "tags": [
      "realtime",
      "long-poll",
      "sse",
      "base",
      "gas"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Base (chain 8453) gas tip for agents that send transactions: latest block number and age, base fee, eth_gasPrice, eth_maxPriorityFeePerGas and a suggested maxFeePerGas (2x base fee + priority), from one batched RPC call every 2 s. Long-poll with ?since=<seq>&wait=25. Prepaid meter price $0.0002/call (packs at /v1/meter); SSE at /v1/stream/tips."
}

What the leaf hashes

{"body":"5447aff22ddc33f0839158cd8df1aececcf2dc1130c49d7c54552e97e7246852","id":1261571,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793385513302362,"prev":null,"subject":"x402_bazaar:https://agents.avasis.ai/v1/tip/base-gas","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. 0x7773b735be3c0295e26614404d09730dfffea2062a64a2cddc9371f8b765f8fa
2. 0x13be72b7d6bcaf45af858c7091d3197d9fc089eafee47a58244b5485141dceac
3. 0xdb09a8be919590228b508f20437e131ba56b71017b2f528df4b995dbe94d5b68
4. 0xe8f750777e726d2b32d3b410c4a5cfad750ac4e9567f75809bdecefa913e07e6
5. 0x5672e3c348053506bc5bd6c2e5ca1a5afbe50034bbda7a8f477df1f1d6d1f190
6. 0x442316261af7ababe45d649fde44f6ae42a4b1d09fbf28645bfe975cf2ef7421
7. 0x2be757ff0865e3bae37e704c34172f16f37bf6067bb89f4776b17392abf58559
8. 0x3afecd40e92a84b09a5665f959fa2e6d909b7d28e626771c2455291397eab730
9. 0xf769e6154302f4be647e4545aa05dd1f457d5ccbd32999baf7962a51f900bc3d
10. 0x059df6dc481ad8375245178eb41811159bb3c8dbbcfc1ca5a745fd0d1f7e4de4
11. 0x5f2108a18036c397c1b66575525e1ffcda4a8e76e098ca6f1a533303267381c4
12. 0xf3f40fe498675360f57a43c0bd787d90a1f1734ae0e4763208da630024b06bcd
13. 0x630c92ab7a09a852e8f8d699227d5d4a4acf303f63bea031f0057a3a36087420
14. 0x75bcbdd2a0d7acdea21f6011126339c8e33a476ec0a76842480cf5bf70db6a72
15. 0xdf25f5d38e3fb54d3e66e3bf876db529f619041e0d21f0bc35b80003418e3d9c
16. 0xdbaaffa44665d1fa60d33d2c4075bd87629b76d01a6ee63e621e78590303b56d
17. 0xffe660edb9e5c6e3449a49454634c3e7b2f9fe703e5697f723b021735647ab7e
18. 0x30a81d8fcef4e8f9e2877c62796cfc5612fc1b251127d531dee28f8dbd5c5147

Day root

0x0826c7ad6039e06a2360ca0a4a3a4fe7f2626c6dc19f71a37599386f78b39875

Chained

0x36b4c8a1063758f0b8765fa1bdf75fa92fb543cc183add3e261880ee2bd1f822

Published

On Arc Testnet, block 69923247: 0x8704744146c6967c8abc9e9a99de4db7283b29e840922ea83a69b6fe776e6861