Evidence row 123916

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://walcert.globalscoreagent.com/v1/certificates/multichain"
    ]
  ],
  "name": "walcert.globalscoreagent.com/v1/certificates/multichain",
  "owner_address": "0xf4d938200445b0df0f028af6d90d016147aed095",
  "raw": {
    "accepts": [
      {
        "amount": "50000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:8453",
        "payTo": "0xF4D938200445B0Df0f028af6d90D016147AEd095",
        "scheme": "exact"
      },
      {
        "amount": "50000",
        "asset": "0xcebA9300f2b948710d2653dD7B07f33A8B32118C",
        "extra": {
          "name": "USDC",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:42220",
        "payTo": "0xF4D938200445B0Df0f028af6d90D016147AEd095",
        "scheme": "exact"
      },
      {
        "amount": "50000000000000000",
        "asset": "0x8AC76a51cc950d9822D68b83fE1Ad97B32Cd580d",
        "extra": {
          "assetTransferMethod": "permit2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:56",
        "payTo": "0xF4D938200445B0Df0f028af6d90D016147AEd095",
        "scheme": "exact"
      }
    ],
    "description": "Grade a wallet's chain footprint, longevity and sampled tx intensity A-F across EVM networks. POST wallet_address; signed certificate. $0.05 USDC.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "wallet_address": "0x2eFC66c0a78620Dd254443998BF2f11B685602E3"
            },
            "bodyType": "json",
            "method": "POST",
            "type": "http"
          },
          "output": {
            "example": {
              "available": true,
              "certificate": {
                "data_hash": "0x…",
                "grade": "B",
                "grade_label": {
                  "eng": "Good",
                  "esp": "Bueno"
                },
                "onchain": {
                  "chain_id": 42220,
                  "status": "confirmed",
                  "tx_hash": "0x…"
                },
                "signature": {
                  "scheme": "eip712",
                  "signer": "0xE7e9…"
                },
                "summary": {
                  "eng": "Wallet maturity certificate (A-F).",
                  "esp": "Certificado de madurez de wallet (A-F)."
                },
                "type": "MULTICHAIN"
              },
              "certificate_type": "multichain",
              "mode": "hot",
              "provider": "goldrush",
              "status": "ok"
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "body": {
                  "properties": {
                    "wallet_address": {
                      "description": "EVM wallet address (0x-prefixed, 42 chars)",
                      "type": "string"
                    }
                  },
                  "required": [
                    "wallet_address"
                  ],
                  "type": "object"
                },
                "bodyType": {
                  "enum": [
                    "json",
                    "form-data",
                    "text"
                  ],
                  "type": "string"
                },
                "method": {
                  "enum": [
                    "POST",
                    "PUT",
                    "PATCH"
                  ],
                  "type": "string"
                },
                "type": {
                  "const": "http",
                  "type": "string"
                }
              },
              "required": [
                "type",
                "method",
                "bodyType",
                "body"
              ],
              "type": "object"
            },
            "output": {
              "properties": {
                "example": {
                  "type": "object"
                },
                "type": {
                  "type": "string"
                }
              },
              "required": [
                "type"
              ],
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      }
    },
    "lastUpdated": "2026-10-24T06:54:36.147Z",
    "quality": {
      "l30DaysTotalCalls": 1,
      "l30DaysUniquePayers": 1,
      "lastCalledAt": "2026-10-24T06:54:35.91Z"
    },
    "resource": "https://walcert.globalscoreagent.com/v1/certificates/multichain",
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Grade a wallet's chain footprint, longevity and sampled tx intensity A-F across EVM networks. POST wallet_address; signed certificate. $0.05 USDC."
}

What the leaf hashes

{"body":"49d3239fbce8acc63b00baf4b40fad901fe4fe08fa382c8f4f923d0b178f480a","id":123916,"kind":"listing","method":"baseline/1","observed_us":1793025623867217,"prev":null,"subject":"x402_bazaar:https://walcert.globalscoreagent.com/v1/certificates/multichain","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. 0x915a3e46b4bba4e490f71b520374a68fa5588666b592a08bff27d253f31a55ec
2. 0x115d3ffcab873c02717b6f7c62056043667cd9979c450d1e9a1223cfe7f1cc46
3. 0xe7f67d2f8ccf1002a34923c8588b7e6e284e3edae67985bc5cc05c0a89841abb
4. 0x343ab85e8641e0eddb4ee2f870eccbbc2f39196dd4cbf5427b252d7a927283ec
5. 0xfd9f83af7f7e5608db2cc6640b26e036f53bbcc48d6d1993b09b4e37ced9da7c
6. 0x74f4e4f1ee1500dcff0a2596228b2d6e4575498c81174293cb6521f5f628fbe5
7. 0x0be084aeea81b5fd5c83f8c56cc5c44084362e090ab8b0a121be750796b94145
8. 0xeed5d1c11e968861f52363cd11a0d9a1482539c24adcfc18cb51dea667db8457
9. 0xf6f2bd9108b82135950a82eaf028e3da7348f19e3c1334f90abbffa60144ea85
10. 0x8f6f90384a3dbb0aa1512320438fce6c69c255af4b720c9519d9dab665dd6626
11. 0x6c9f1a764b7efa4ca549bf1cbbf8b397ce3c92cc35a0932f2dbf0706ae892c07
12. 0xe131b224ee3c295dfa790b458d9daa11e2a32e6131c280c6be7d92190c756a88
13. 0x45c1d3062bbe98a6b1540c7e2ccf6516eedd6ef07fdfeb1ba77ee6272970447c
14. 0xf0edabbb9ba0d643e5505d19d07637eb6f6aed0a1c7356af43ae7d84ae9ef0c5
15. 0xf0bd63870f0bb378fa300bd33563050dcb7b3e02b44eb3ee550c1c534ec4b246
16. 0x1ac20d30773e1f4f2f811540e9a99b5cca9177c9e2e029acc0d80cf3f1d11f0f
17. 0xd21942ae3214eff88e08ab04884fd4b11958b51af9a0741b7668e2d07a2c56c9
18. 0x9a9024edb5069d88a324facb310a5ce8e495214bbaa968f077bede437390194f
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae