Evidence row 119923

Observed 26 Oct 2026, 14:40 UTC, by baseline/1.

Kind: listing
About: source_record x402_bazaar:https://saylorinnovations.com/api/fun/riddle
Recorded: 26 Oct 2026, 14:40 UTC
Previous row: None: the first of its kind about this subject
Body SHA-256: 01ba95290dab627be99edec0831ecab50957e7488054b6aff4e5732308aeee55
Leaf: 0xbaac70b41d6c63d3a9451f9611687c6c1207024a9e72836735310c200168347b

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://saylorinnovations.com/api/fun/riddle"
    ]
  ],
  "name": "Saylor Innovations Utilities",
  "owner_address": "0xa2a8df0f7caabea4e120a2568118f141569fc8aa",
  "raw": {
    "accepts": [
      {
        "amount": "10000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "assetTransferMethod": "eip3009",
          "facilitatorOnly": true,
          "memo": "saylor:fun:riddle",
          "name": "USD Coin",
          "note": "Base settles through an x402 facilitator. Send payload.signature and payload.authorization (EIP-3009); there is no self-submitted path on this network.",
          "version": "2"
        },
        "maxTimeoutSeconds": 120,
        "network": "eip155:8453",
        "payTo": "0xA2A8dF0f7CaaBEa4e120a2568118f141569fc8aa",
        "scheme": "exact"
      },
      {
        "amount": "10000",
        "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
        "extra": {
          "feePayer": "D6ZhtNQ5nT9ZnTHUbqXZsTx5MH2rPFiBBggX4hY1WePM",
          "memo": "saylor:fun:riddle",
          "reference": "A4rcvCJnZAMJYaE5gLGAknTnXSKniw4jTNsnU4F9LQBZ",
          "session": "eyJhcnRpY2xlSWQiOiJmdW46cmlkZGxlIiwicmVmZXJlbmNlIjoiQTRyY3ZDSm5aQU1KWWFFNWdMR0FrblRuWFNLbml3NGpUTnNuVTRGOUxRQloiLCJyZWNpcGllbnQiOiI3TFNqZnJKZjhmTnNCOFZBOXU3TjNXRW4yNXNtUUxwb2IzU3Z5VXZYYWN5NyIsIm1pbnQiOiJFUGpGV2RkNUF1ZnFTU3FlTTJxTjF4enliYXBDOEc0d0VHR2tad3lURHQxdiIsIm1pbkFtb3VudCI6MTAwMDAsImV4cCI6MTc5MjE3ODc2MDgzNH0.t2UKarAWQHk2lJmgJ4WzL9iI9EO-q_98QwF3ydvyq8Q"
        },
        "maxTimeoutSeconds": 120,
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
        "scheme": "exact"
      }
    ],
    "description": "Random riddle - the riddle text and its answer as separate fields, drawn from a curated pool; the response includes the pool size",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "type": "http"
          },
          "output": {
            "example": {
              "answer": "A library.",
              "pool_size": 17,
              "riddle": "What building has the most stories?"
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "method": {
                  "enum": [
                    "GET",
                    "POST",
                    "PUT",
                    "PATCH",
                    "DELETE",
                    "HEAD"
                  ],
                  "type": "string"
                },
                "type": {
                  "const": "http",
                  "type": "string"
                }
              },
              "required": [
                "type",
                "method"
              ],
              "type": "object"
            },
            "output": {
              "properties": {
                "example": {
                  "properties": {
                    "answer": {
                      "description": "The answer, safe to reveal to the player",
                      "type": "string"
                    },
                    "generated_at": {
                      "description": "Time this response was generated (UTC)",
                      "type": [
                        "string",
                        "null"
                      ]
                    },
                    "pool_size": {
                      "description": "Number of riddles the service draws from",
                      "type": "number"
                    },
                    "riddle": {
                      "description": "The riddle text",
                      "type": "string"
                    }
                  },
                  "required": [
                    "riddle",
                    "answer"
                  ],
                  "type": "object"
                },
                "type": {
                  "const": "json",
                  "type": "string"
                }
              },
              "required": [
                "type"
              ],
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      }
    },
    "iconUrl": "https://res.cloudinary.com/bdb-prod/image/upload/c_fill,ar_1:1,w_256,h_256,f_auto,q_auto/v1791811517/bazaar-icons/bc5e2b3d111ebbef.jpg",
    "lastUpdated": "2026-10-16T19:24:00.878Z",
    "quality": {
      "l30DaysTotalCalls": 2,
      "l30DaysUniquePayers": 2,
      "lastCalledAt": "2026-10-16T19:24:00.496Z"
    },
    "resource": "https://saylorinnovations.com/api/fun/riddle",
    "serviceName": "Saylor Innovations Utilities",
    "tags": [
      "riddle",
      "brain teaser",
      "puzzle",
      "x402 test",
      "utility"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Random riddle - the riddle text and its answer as separate fields, drawn from a curated pool; the response includes the pool size"
}

What the leaf hashes

{"body":"01ba95290dab627be99edec0831ecab50957e7488054b6aff4e5732308aeee55","id":119923,"kind":"listing","method":"baseline/1","observed_us":1793025616945934,"prev":null,"subject":"x402_bazaar:https://saylorinnovations.com/api/fun/riddle","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-10-26 (296695 rows).
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Day root: 0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8
Chained: 0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a
Published: On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae

How to check it · This row as JSON