Evidence row 123543

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://underground.substratesymposium.com/buy/time_dilation"
    ]
  ],
  "name": "underground.substratesymposium.com/buy/time_dilation",
  "owner_address": "0xa3babb36564b0383a82c617050306ee30fd18e08",
  "raw": {
    "accepts": [
      {
        "amount": "10000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:8453",
        "payTo": "0xA3bAbB36564b0383a82c617050306EE30fd18E08",
        "scheme": "exact"
      },
      {
        "amount": "10000",
        "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
        "extra": {
          "feePayer": "CjNFTjvBhbJJd2B5ePPMHRLx1ELZpa8dwQgGL727eKww"
        },
        "maxTimeoutSeconds": 300,
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "payTo": "5HK2dGaaquDWFnYWaWhMzMYtbcDsqeq5biJ2PMtX1tkN",
        "scheme": "exact"
      }
    ],
    "description": "Time Dilation — Relative time theory for understanding non-universal now and perspective-dependent experience.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "queryParams": {},
            "type": "http"
          },
          "output": {
            "example": {
              "content": "Relative time theory for understanding non-universal now and perspective-dependent experience.",
              "delivered_at": "2026-04-24T10:00:00Z",
              "product": "time_dilation",
              "title": "Time Dilation"
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "method": {
                  "enum": [
                    "GET"
                  ],
                  "type": "string"
                },
                "queryParams": {
                  "properties": {},
                  "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": "2026-10-11T02:06:28.332Z",
    "quality": {
      "l30DaysTotalCalls": 2,
      "l30DaysUniquePayers": 2,
      "lastCalledAt": "2026-10-11T02:06:28.192Z"
    },
    "resource": "https://underground.substratesymposium.com/buy/time_dilation",
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Time Dilation — Relative time theory for understanding non-universal now and perspective-dependent experience."
}

What the leaf hashes

{"body":"2bd703fdeb51a958dc223a2b366594098209dca670e68d326b54824647e75e19","id":123543,"kind":"listing","method":"baseline/1","observed_us":1793025623301255,"prev":null,"subject":"x402_bazaar:https://underground.substratesymposium.com/buy/time_dilation","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).

1. 0x63d5321935e226e94869012871604c3d1a64e4f9470394f2fa57444d862b368c
2. 0x180e9a216cb9447cd0eaf1b0dcf2513dcb1edf078200ce1204a34e8f469dd7fe
3. 0xa99f976509e13673218c7f63ed5f5ffabfe6f8c05effdf3256d4187f25bc36b4
4. 0x4b50a171d113e256747798c0babf88ffb73bc7ee5a1f5015a6159f95fa278055
5. 0x251ce9ae358d18c1851268139b11d382d8e95ca02053b107255e20351e5e45cf
6. 0xeb06318b1b88b97d9bb3c7dd2d9202ed5734b2e0bdc8d2d57c19ae6a61ecd274
7. 0x52620cd3a033a16700f9dc55b2c73aa5bfc1548d862c36e3ff8969ad81e74590
8. 0x8b6619e70d24aba2a00c22bd13a7fbf8d2a220ca3e995fb553ef50b61c37bf4a
9. 0xaee65ca4355c3e6c6da6121ba2239ff3173fe956bc7a177c4570bd6029c7f47a
10. 0x0cf27acff17ee4b19c37230254fb064d664b48a3282643e35a74b6998aa0446b
11. 0xde5ff34fc9e6ff297fede5d3c4b4de6828c65b98246109399106064f912afa82
12. 0x3c8355143bb13802401d5a80f8a70809a59f429bc298f4912731fc8d207e4f43
13. 0x13f4b94ecf613d585c952b5363dad2b247a55371eb8e358bb89dc033e83128b1
14. 0x9a79c65e077cd9da9d436b3ade6f5ddc0d244510c4d5903ef2f02d81205f7666
15. 0xa2d436d488e3600b0e5c3e3ed9c9234cd52853c59830b786334fd0c4292d9f40
16. 0x47b89901b0f07938a6b9a66ddf35683903f79d756a7c7763665fd632758b08d0
17. 0x9a83be955a206deb65b995adfd92c58fa31c95fbbf926bd199d300e70b08b26d
18. 0x20704208aa6923d6b2450ef74ede87a6e0265d46447926038fe9506e9e154b2d
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae