Evidence row 526567

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://x402.swaphunt.dev/v1/market/halving"
    ]
  ],
  "name": "x402.swaphunt.dev/v1/market/halving",
  "owner_address": "0xd6b585dd2f48263d08fb75ea28c1598d845d23a8",
  "raw": {
    "accepts": [
      {
        "amount": "1000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:8453",
        "payTo": "0xD6b585DD2F48263D08FB75EA28c1598d845d23a8",
        "scheme": "exact"
      }
    ],
    "description": "BTC or LTC halving countdown: blocks remaining and the estimated date of the next halving. Use for cycle-timing narratives and supply-shock context. Estimate (block-time based), not an exact timestamp.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "queryParams": {
              "coin": "BTC"
            },
            "type": "http"
          },
          "output": {
            "example": {
              "blocks_remaining": 78400,
              "coin": "BTC",
              "current_block": 971600,
              "days_until_halving": 540,
              "estimated_date": "2028-04-20"
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "method": {
                  "enum": [
                    "GET",
                    "HEAD",
                    "DELETE"
                  ],
                  "type": "string"
                },
                "queryParams": {
                  "properties": {
                    "coin": {
                      "default": "BTC",
                      "description": "Coin (BTC or LTC)",
                      "type": "string"
                    }
                  },
                  "type": "object"
                },
                "type": {
                  "const": "http",
                  "type": "string"
                }
              },
              "required": [
                "type",
                "method"
              ],
              "type": "object"
            },
            "output": {
              "properties": {
                "example": {
                  "type": "object"
                },
                "type": {
                  "type": "string"
                }
              },
              "required": [
                "type"
              ],
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      }
    },
    "lastUpdated": "2026-10-27T09:58:18.225Z",
    "quality": {
      "l30DaysTotalCalls": 4,
      "l30DaysUniquePayers": 4,
      "lastCalledAt": "2026-10-27T09:58:17.639Z"
    },
    "resource": "https://x402.swaphunt.dev/v1/market/halving",
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "BTC or LTC halving countdown: blocks remaining and the estimated date of the next halving. Use for cycle-timing narratives and supply-shock context. Estimate (block-time based), not an exact timestamp."
}

What the leaf hashes

{"body":"536e93721d3e3627d06921434dea178d83ce715163fc6ae00f524b42dfd69c8b","id":526567,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793124788611577,"prev":452901,"subject":"x402_bazaar:https://x402.swaphunt.dev/v1/market/halving","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. 0xd9698c03d25fa3f16eed5d8c83b4a346f514384b9d919f305e6b032cf7c00dfc
2. 0xe37e248aa4d12250bdb13ee4cc32562e13df2ffc08bd885f38098e56b1ea115d
3. 0x0ac4dbb05660b133c543fb979798fffc90e6ae8a21d0dcbe0e23be9cc042a707
4. 0xe9fa8984b6137329c1a640f6b09586ba57d818b7aadf61584107ea2f7e3734dd
5. 0xf698ae5bb94bb226cc43caf2d151e186724fa2467c44c2229dc3a41be0bf0771
6. 0x1ce280c112b5f0c045f5eb040773297d36f047b65fa5cc6ef757d8ab3a9facea
7. 0xb1d301648c637be154430366c653c308e95772e9b8f271b867d9eac3b3072422
8. 0xf82a5e0631d472d15a4dd54766af07ac41ec5ba36dd63da2600794b3c0a2d3f7
9. 0xa71fdd2a8143e4b8fab8a564179b0beea8c73ff9fdfcb1551996392db202e22c
10. 0xd47af22d1878eee6975af947e6e45935f573b005c0fe9efe5590def172016768
11. 0x7f6de085812928d3d7f3b15191238d47e17ef53dc519c83f30704118bb423398
12. 0x29ce226640d83db3bc63fef23427a7af561200d30ffde9b1b7a61b814b844a39
13. 0x13692b463800846f580925c8ea49b43f92b7df3f9e8d32b8a18802640cca3780
14. 0xd59f3e577867f5105dd7f75598f16da8286185e426dfcdafb84e733fde2b2492
15. 0x24e3e2bb8ee1e8d20756de35f0e0c4ec8eb1f193bd2cf3f077ee1f92f211c34d
16. 0x8745bd887f5ce9f7a49558fd2b04cdcd97a05ea9f8a23f62d0e80cb13d328b0f
17. 0xdf1105afdc109de3c09a98fc8a3864159ad964e6f49b635c105a27a1e1f14310
18. 0x2bf8151e5f157dd183b9de6fa00469551932a7a6e3f33a694895000ac9061197
19. 0x9fc354c0ea3efc3f1b6548bb77ea902a50f2c9647647ea61592efce2bd795699

Day root

0xdd77e5e99da32c3f154180d63e3c3e6fe11e896a2c6896412ef6b5c4bcf7e795

Chained

0x23bb4dfd09f55c15ac3962f53578e02c6114d5bfd9bb451cf8794fb6e2817ef4

Published

On Arc Testnet, block 69414147: 0xb2ebd83aafeb765a0ce66e76aefb133ed06606c98038fd56191e2bcd1dcb77b4