Evidence row 548330

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://402.com.tr/api/x402/encode-selector"
    ]
  ],
  "name": "Function Selector Encoder",
  "owner_address": "0x973a31858f4d2125f48c880542da11a2796f12d6",
  "raw": {
    "accepts": [
      {
        "amount": "10000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:8453",
        "payTo": "0x973a31858f4d2125f48c880542da11a2796f12d6",
        "scheme": "exact"
      }
    ],
    "description": "Computes the 4-byte selector for a function signature (e.g. transfer(address,uint256) → 0xa9059cbb). The inverse of the decoder — useful for agents building or matching calldata.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "pathParams": {},
            "queryParams": {
              "signature": "transfer(address,uint256)"
            },
            "type": "http"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "method": {
                  "enum": [
                    "GET"
                  ],
                  "type": "string"
                },
                "pathParams": {
                  "type": "object"
                },
                "queryParams": {
                  "properties": {
                    "signature": {
                      "description": "Function signature",
                      "type": "string"
                    }
                  },
                  "required": [
                    "signature"
                  ],
                  "type": "object"
                },
                "type": {
                  "const": "http",
                  "type": "string"
                }
              },
              "required": [
                "type",
                "method"
              ],
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      },
      "builder-code": {
        "info": {
          "a": "bc_pa0gqlv1"
        },
        "schema": {
          "$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"
              },
              "type": "array"
            },
            "w": {
              "description": "Wallet builder code",
              "pattern": "^[a-z0-9_]{1,32}$",
              "type": "string"
            }
          },
          "type": "object"
        }
      }
    },
    "lastUpdated": "2026-10-27T09:48:24.705Z",
    "quality": {
      "l30DaysTotalCalls": 7,
      "l30DaysUniquePayers": 5,
      "lastCalledAt": "2026-10-27T09:48:24.134Z"
    },
    "resource": "https://402.com.tr/api/x402/encode-selector",
    "serviceName": "Function Selector Encoder",
    "tags": [
      "onchain",
      "evm",
      "wallet-intel",
      "security",
      "data"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Computes the 4-byte selector for a function signature (e.g. transfer(address,uint256) → 0xa9059cbb). The inverse of the decoder — useful for agents building or matching calldata."
}

What the leaf hashes

{"body":"b6204ad4078661e411c21c12ba997701f71e205e056ed25a0cc1dc25233fafc2","id":548330,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793133294624809,"prev":452286,"subject":"x402_bazaar:https://402.com.tr/api/x402/encode-selector","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-10-27 (273461 rows).

1. 0x571f8b22f45b238d24736f9d86a5486f38c69dc1947e5cc8682f264c39998855
2. 0x41471792cd0da84e31b754f169917a8c223d42f16eea1ab87f93da5275a62d39
3. 0xaaa691ed8fd22cb5a5a7ff0a76b6499ff7e3c2e68fa0e06d391199aa9edd5cd5
4. 0xd108ec800f41d1d99f5264f66dbd402a6d07ee491525e6333df517664b67d97a
5. 0xc12260dd3a20c39d45a46d55ab7f07ca3c6a469464cf7ea9add4ab92e51c7fd8
6. 0x0485b2eda5f61ef1149f4da002aacab73f2ebb613b7d209671579809e571d1ac
7. 0xc24324e6853ce412b770f8401f467ad9dfd0427ccaa778aa0c1952be4c3bc4f5
8. 0xf2acaca8b3bf3cd7e5ee0d0c417406b769985ae8d4a618e65ba7d29743e1990b
9. 0x5c7f85a42f9f91a9bf9f93b53e95f1e133d25cc27563aa4ef63f7444e12d09b5
10. 0x08827e8fe6f1d2733ba195e6e6f9a6982dd7b498a3960219710b8aa2b76826ac
11. 0xaec8530a2e156f659d0929b3462a514a0cf7d2e6669110bb34b6ef56abdae9fd
12. 0xe06cb1b692af263d62f5739bc4ad709ffe5a2576ef5a59a1610d50c03c7b9584
13. 0x906b5f0e8ef1fe7894886d84f460bb3239d5f14b14ad4adff27c7dcea6265169
14. 0x674bc1173d39130be4d15bbfc7327f8a8af87eb251e54c8d4409c7e840b9e538
15. 0xb78ea6a255dd06e2f402a1a733bca392fa6243920bcba95e8b80bdfc6ce5f553
16. 0x3ed50f053eca72dfd3a9d45a11935240bfe691e57835c367ddebe2cbc49efe9d
17. 0x0e01aa9525097570a6edaf32bfc959de57bf5c24317cf10c0716affea85ca60d
18. 0xa20d48798a34aba12eb9c7297722982d910f06c148f5e27ac59307422964a585
19. 0x9fc354c0ea3efc3f1b6548bb77ea902a50f2c9647647ea61592efce2bd795699

Day root

0xdd77e5e99da32c3f154180d63e3c3e6fe11e896a2c6896412ef6b5c4bcf7e795

Chained

0x23bb4dfd09f55c15ac3962f53578e02c6114d5bfd9bb451cf8794fb6e2817ef4

Published

On Arc Testnet: 0xb2ebd83aafeb765a0ce66e76aefb133ed06606c98038fd56191e2bcd1dcb77b4