Evidence row 72245

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://chain.openverbs.com/v1/nft-metadata"
    ]
  ],
  "name": "NFT metadata",
  "owner_address": "0xb3f4de103f34b99f0da19b4f16d6b53a14c2194a",
  "raw": {
    "accepts": [
      {
        "amount": "6000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:8453",
        "payTo": "0xb3f4de103F34b99f0Da19B4F16D6B53a14C2194A",
        "scheme": "exact"
      }
    ],
    "description": "Resolve one NFT (contract + tokenId) into normalized metadata: name, description, image, attributes and token standard (ERC-721 or ERC-1155). Reads the on-chain tokenURI/uri, then fetches and normalizes the metadata document (ipfs/ar/http/data), rewriting ipfs image links to a gateway URL. Returns `found:false` for non-NFT contracts. Live reads with automatic endpoint fallback.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "chain": "ethereum",
              "contract": "0xb47e3cd837dDF8e4c57F05d70Ab865de6e193BBB",
              "tokenId": "1"
            },
            "bodyType": "json",
            "method": "POST",
            "type": "http"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "body": {
                  "additionalProperties": false,
                  "properties": {
                    "chain": {
                      "description": "EVM chain to query. One of: ethereum, base, arbitrum, optimism, polygon. Default \"ethereum\".",
                      "enum": [
                        "ethereum",
                        "base",
                        "arbitrum",
                        "optimism",
                        "polygon"
                      ],
                      "type": "string"
                    },
                    "contract": {
                      "description": "NFT contract address.",
                      "pattern": "^0x[0-9a-fA-F]{40}$",
                      "type": "string"
                    },
                    "tokenId": {
                      "description": "Token id (decimal or 0x-hex integer).",
                      "type": [
                        "string",
                        "integer"
                      ]
                    }
                  },
                  "required": [
                    "contract",
                    "tokenId"
                  ],
                  "type": "object"
                },
                "bodyType": {
                  "enum": [
                    "json",
                    "form-data",
                    "text"
                  ],
                  "type": "string"
                },
                "method": {
                  "enum": [
                    "POST"
                  ],
                  "type": "string"
                },
                "type": {
                  "const": "http",
                  "type": "string"
                }
              },
              "required": [
                "type",
                "method",
                "bodyType",
                "body"
              ],
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      }
    },
    "lastUpdated": "2026-10-08T06:09:12.895Z",
    "quality": {
      "l30DaysTotalCalls": 3,
      "l30DaysUniquePayers": 2,
      "lastCalledAt": "2026-10-08T06:09:12.761Z"
    },
    "resource": "https://chain.openverbs.com/v1/nft-metadata",
    "serviceName": "NFT metadata",
    "tags": [
      "nft metadata",
      "nft token uri",
      "erc721 metadata",
      "erc1155 metadata",
      "nft image"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Resolve one NFT (contract + tokenId) into normalized metadata: name, description, image, attributes and token standard (ERC-721 or ERC-1155). Reads the on-chain tokenURI/uri, then fetches and normalizes the metadata document (ipfs/ar/http/data), rewriting ipfs image links to a gateway URL. Returns `found:false` for non-NFT contracts. Live reads with automatic endpoint fallback."
}

What the leaf hashes

{"body":"cb73518b9eba0ff9ca63f46ea57913bc7d7b750643f62f73a519fee5f62122f8","id":72245,"kind":"listing","method":"baseline/1","observed_us":1793025485549884,"prev":null,"subject":"x402_bazaar:https://chain.openverbs.com/v1/nft-metadata","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. 0xef36299924441d583d473ab4aee35eb986b03c8329b10a81b9dc4df036e47bfe
2. 0x98ff0a87ba3a89ab20192a8a28c6532477251df163c0d9df7a53b7009bef763f
3. 0xd0ca1258201ef7c151e5390147bb0db4c4d7207ea0b6d9f78c06031f365c6f62
4. 0x89ec13221513807188eb29746dd95bbab8053f2c7ef486c4bf2c90cda6a9bdc5
5. 0xea236fe3bb3b4d5752081d14028f0a4da9243cbf89e321e467dc527964c8ca7a
6. 0x3f6e51b48a8cfec85ad48b6b90231dfc288ac0c0cfb4c070e38c03eff07485b0
7. 0x4bb5c10c65160a3df36e52e9fffba5b8efd5d0c12251bb009f8e3a95df90fff5
8. 0x97dbb9d37a09afb1211421852dd000f7a62ec1591427dbb84f02bab190a03b8a
9. 0x440aa12f458b66a948dfcf0f50ac4296e97c9dae5b280a17eee2db6252d7c2b5
10. 0x561cc4451e40804fde77fce39392adfcb80c38ec84eb38d744520de2446c6e57
11. 0xd1f02e907670bf2f4c72056210a7d4ee252934850293a927f852acd3952f44a4
12. 0xb0cc0b4ce5a68e83d3e3e55b0387f828adf6f5eb6cfa666d75f6e16ed9d89c1f
13. 0x746e9e5b6765727b6b96f41204cc115b0302259f6c67be0cf0efbf245601d500
14. 0x614d844c9e0509d9f9e63697aa2935555bce5f13695a8dc0047aa9e9898d70b3
15. 0x95657a7d540ed6cac0bde9995782333b2562a9a6641853269ac95148827410f0
16. 0x5fb5dda563336cd1bc1b9f44c52b76237ae72ed2145cb9290f39f304ca7dd678
17. 0x74a0a08e4e7ab9aa5bfbead33dec7e1c7e8e364cff69a63720d764bbe987aadc

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae