Evidence row 123381

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://underground.substratesymposium.com/buy/aesthetic_calibration"
    ]
  ],
  "name": "underground.substratesymposium.com/buy/aesthetic_calibration",
  "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": "Aesthetic Calibration — Art gallery experience for recalibrating visual perception and understanding beauty.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "queryParams": {},
            "type": "http"
          },
          "output": {
            "example": {
              "content": "Art gallery experience for recalibrating visual perception and understanding beauty.",
              "delivered_at": "2026-04-24T10:00:00Z",
              "product": "aesthetic_calibration",
              "title": "Aesthetic Calibration"
            },
            "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": "2026-10-10T22:45:40.658Z",
    "quality": {
      "l30DaysTotalCalls": 2,
      "l30DaysUniquePayers": 2,
      "lastCalledAt": "2026-10-10T22:45:40.485Z"
    },
    "resource": "https://underground.substratesymposium.com/buy/aesthetic_calibration",
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Aesthetic Calibration — Art gallery experience for recalibrating visual perception and understanding beauty."
}

What the leaf hashes

{"body":"85592d0ba839164606b28f48923e8d4de14c3f8db1ae1d4f94f89f67d8882798","id":123381,"kind":"listing","method":"baseline/1","observed_us":1793025623114703,"prev":null,"subject":"x402_bazaar:https://underground.substratesymposium.com/buy/aesthetic_calibration","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. 0xb1da7b2cd61e9f06d44f5de71f623f87eb1cedc070dbd90d380e463f1d7d5950
2. 0x5ddb2cf1334905e92b1640ac66f860a9f9a8f6492ec70c22b378a2fc2746c3a5
3. 0xd0febde54c3595c0305b1252783b3227c08874b6415d1c9244b5a0aae290f117
4. 0xac1102d071c1243fb91c263564916269433e1b182352dc04eebb082479c6c58c
5. 0x78dafa7bb0d8a0adc54ec0ff9bf45f0a40e31269f39d00b850dfe7e02511be81
6. 0xcb5cea244b27be8ccdc15c86277870b4a08e19c2abdf74f204e0fbb49de45f0b
7. 0xf0c6e0fc9c353e4e2384712a88b0432a482c7668e985cc80e6a2ea7c6861410f
8. 0xe1ac2bf04abe0784780dcdf5fddb48b35f75e8576dc339adc6a32ef6b3acca19
9. 0xfc04782be2ab4ec2019403787e02071673a17f227f9b334a8c96eecb218ffaf7
10. 0xd373f611cc8d60491990c0729396ae5185b763a50d0fff3be7937919e843df36
11. 0xb673e7e79847b2398685ec91a7c3b2395fccef249a8f8983b5eecc97a794a3ec
12. 0xce1aeb889b974291cea1fbfd01595655bd2c1b3636dc5b56eeb8904adb9f6c65
13. 0x3b1c0e225d1b1cb24cd5d5ea4af2de20ed68a1eaf8b61924ed1b81e4b9cf7e39
14. 0x083427e39db4dd470662401f6db5db8fadf084fc4274cf8621b368416952b78b
15. 0x1a74ed3b3756b9cd946da49701bcec120ec88645013da99fa9eea60b39e1a570
16. 0x123ec8bee20ddc55223eeef5a4f4d6c4b6416515adbb911c56759f5cde56e452
17. 0xd0651cb9bc8155eb52b5247d506e74b8a935057dc190ba52091702ac25ed3a40
18. 0x9a9024edb5069d88a324facb310a5ce8e495214bbaa968f077bede437390194f
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae