Evidence row 1507941

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://agents.avasis.ai/v1/tip/eth-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": "Ethereum mainnet 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 4 s. Long-poll with ?since=<seq>&wait=25. Prepaid meter price $0.0002/call (packs at /v1/meter); SSE at /v1/stream/tips.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "queryParams": {},
            "type": "http"
          },
          "output": {
            "example": {
              "ageMs": 420,
              "changed": true,
              "data": {
                "blockAgeSeconds": 5,
                "blockNumber": 23700000,
                "chain": "ethereum",
                "chainId": 1,
                "gwei": {
                  "baseFee": 0.41,
                  "gasPrice": 1.41,
                  "maxPriorityFee": 1,
                  "suggestedMaxFee": 1.82
                }
              },
              "observedAt": "2026-10-29T12:00:00.000Z",
              "seq": 812,
              "stale": false,
              "topic": "eth-gas"
            },
            "type": "json"
          }
        },
        "schema": {
          "$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": "2026-10-31T12:08:26.79Z",
    "quality": {
      "l30DaysTotalCalls": 3,
      "l30DaysUniquePayers": 1,
      "lastCalledAt": "2026-10-31T12:08:26.676Z"
    },
    "resource": "https://agents.avasis.ai/v1/tip/eth-gas",
    "serviceName": "Avasis Agent Platform",
    "tags": [
      "realtime",
      "long-poll",
      "sse",
      "ethereum",
      "gas"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Ethereum mainnet 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 4 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":"a5b99e3852af8b6bc92be340d89328b497d5f7f3546d7b6d78dc048bd2d4125c","id":1507941,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793472705877164,"prev":null,"subject":"x402_bazaar:https://agents.avasis.ai/v1/tip/eth-gas","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-10-31 (246033 rows).

1. 0x5c4ff9064209cadb936d723bc2f209f0ef645aa95bfee3c5d65628ec4294b44b
2. 0x12e5157920ce1b589ffa6a128e7022c0959bf847433369c15884066d949585fd
3. 0xab0255f552460b7dc0cdd4e9228eceb96dca733e17c6edc97f45c91a8b7d4fc2
4. 0x7277eba01fbc6a916f342ec24a4ba79ddf029dcfd223eb202835f2ec9a6b5c21
5. 0xb5632cf45fdaa84fc9a87947ca563383a0ef5a0ff9c0814bf9f467bed04c314a
6. 0x884b493deecc8596cd195cbd186a506ad2cec12926c60c3e438c06234e8e8146
7. 0xe74ecfc8a55683cb2d2357751675e29a4604bfcf1d8bf1109829db13a00098a5
8. 0xf575d89310b8e75a3024a7ad996f03702decbb7e25874405a1bd0f3c777e4af1
9. 0xca09cdcbb77193b658d61c6f4114969b8d728d111da44bdad5f34bbf3a19e46c
10. 0xb8ddd5795928da955c28eed9a6db475ccb516988d1ac6287c85f8c3c504147de
11. 0x36f57315606f3fdf6a85e86ec22bc00423b8a1127f2923fd0e0304d226a0f0d2
12. 0x4a8abc03fed1fe93543ee8e250bd1b4e73cc93890e2ce67c6b6aca0887b97ba5
13. 0x3f29202637d7ceda8fabfbf7810410a7ec3b1bc07170e352d26f9ba4ee18d86c
14. 0x4491b6c04d316f311f7fea4ea34ae52fbca9c230259096575b403fb7b124627a
15. 0xb9a00c724331b305deaa876d5d2baf53b847ff3c7ce37abb0ae1653b2534aad5
16. 0xad4540f06e3fdfe46524d8592f8d854d4849e16217bc047eaf024f0abebe34b0
17. 0xa00a931d72706fa2402bfc9b441a12eb7c6a61ff42a542916106e3637177f101
18. 0x59f83f7228f07febe2780660e422e171b0359b8aa031ee3be07e991118130c15

Day root

0x24463725d1c0d9894bd6123691d532547aaa79f0762c0e45aa6a68acf1fd71ab

Chained

0x7d4824ff313dee7252a46f9d5c37b452851deb6c9f24a40c2f74ee0e53c82980

Published

On Arc Testnet, block 70093156: 0xedb7b832f4ebf6781b5ecd2ed241c435b862f4d3761541fa31adc1831b8c44a0