Evidence row 122998

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

Kind: listing
About: source_record x402_bazaar:https://twin.unykorn.org/btc-block
Recorded: 26 Oct 2026, 14:40 UTC
Previous row: None: the first of its kind about this subject
Body SHA-256: b7408a79c7ff660aa98865a7c0a8c7ecee8cc9f47d1624113085d243bbee2a18
Leaf: 0x5ff4a5bc1179a90e7d6b9f4790aa18bd2d66eb9e3913398444298060e6e94df2

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://twin.unykorn.org/btc-block"
    ]
  ],
  "name": "One Bitcoin block by hash",
  "owner_address": "0x7d9a65d06dcc435a52d5880c6310bd6e96c156db",
  "raw": {
    "accepts": [
      {
        "amount": "4000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:8453",
        "payTo": "0x7d9a65d06dcc435a52D5880C6310Bd6E96c156DB",
        "scheme": "exact"
      },
      {
        "amount": "4000",
        "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxAmountRequired": "4000",
        "maxTimeoutSeconds": 300,
        "network": "eip155:137",
        "payTo": "0x7d9a65d06dcc435a52D5880C6310Bd6E96c156DB",
        "scheme": "exact"
      },
      {
        "amount": "4000",
        "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
        "extra": {
          "feePayer": "BENrLoUbndxoNMUS5JXApGMtNykLjFXXixMtpDwDR9SP"
        },
        "maxAmountRequired": "4000",
        "maxTimeoutSeconds": 300,
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "payTo": "52EqTZigRAnBphuYAuREjQJx5H5ryyc1RETpDR2dZFQp",
        "scheme": "exact"
      }
    ],
    "description": "One Bitcoin block by hash — Genesis402 / UnyKorn Operator Network",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "params": {
                "hash": "4a5e1e4baab89f3a32518a88c31bc87f618f76673e2cc77ab2127b7afdeda33b"
              }
            },
            "bodyType": "json",
            "method": "POST",
            "type": "http"
          },
          "output": {
            "example": {
              "generated_at": "<iso8601>",
              "ok": true,
              "receipt": {
                "amount_usd": 0.004,
                "receipt_id": "g402-<16hex>",
                "tx_hash": "0x<64hex>"
              },
              "type": "btc-block"
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "properties": {
                "body": {
                  "properties": {
                    "params": {
                      "properties": {
                        "hash": {
                          "pattern": "^[0-9a-fA-F]{64}$",
                          "type": "string"
                        }
                      },
                      "type": "object"
                    }
                  },
                  "required": [
                    "params"
                  ],
                  "type": "object"
                },
                "bodyType": {
                  "enum": [
                    "json"
                  ],
                  "type": "string"
                },
                "method": {
                  "enum": [
                    "POST"
                  ],
                  "type": "string"
                },
                "type": {
                  "const": "http",
                  "type": "string"
                }
              },
              "required": [
                "type",
                "method",
                "bodyType",
                "body"
              ],
              "type": "object"
            },
            "output": {
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      }
    },
    "lastUpdated": "2026-10-02T18:02:28.57Z",
    "quality": {
      "l30DaysTotalCalls": 2,
      "l30DaysUniquePayers": 2,
      "lastCalledAt": "2026-10-02T18:02:28.325Z"
    },
    "resource": "https://twin.unykorn.org/btc-block",
    "serviceName": "One Bitcoin block by hash",
    "tags": [
      "Bitcoin",
      "BTC",
      "UTXO",
      "non-EVM",
      "onchain data"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "One Bitcoin block by hash — Genesis402 / UnyKorn Operator Network"
}

What the leaf hashes

{"body":"b7408a79c7ff660aa98865a7c0a8c7ecee8cc9f47d1624113085d243bbee2a18","id":122998,"kind":"listing","method":"baseline/1","observed_us":1793025622517548,"prev":null,"subject":"x402_bazaar:https://twin.unykorn.org/btc-block","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