Evidence row 119525

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://saylorinnovations.com/api/chainlink/price"
    ]
  ],
  "name": "Saylor Innovations Data Desk",
  "owner_address": "0xa2a8df0f7caabea4e120a2568118f141569fc8aa",
  "raw": {
    "accepts": [
      {
        "amount": "10000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "assetTransferMethod": "eip3009",
          "facilitatorOnly": true,
          "memo": "saylor:datadesk:chainlink-price",
          "name": "USD Coin",
          "note": "Base settles through an x402 facilitator. Send payload.signature and payload.authorization (EIP-3009); there is no self-submitted path on this network.",
          "version": "2"
        },
        "maxTimeoutSeconds": 120,
        "network": "eip155:8453",
        "payTo": "0xA2A8dF0f7CaaBEa4e120a2568118f141569fc8aa",
        "scheme": "exact"
      },
      {
        "amount": "10000",
        "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
        "extra": {
          "assetTransferMethod": "eip3009",
          "facilitatorOnly": true,
          "memo": "saylor:datadesk:chainlink-price",
          "name": "USD Coin",
          "note": "Polygon settles through an x402 facilitator. Send payload.signature and payload.authorization (EIP-3009); there is no self-submitted path on this network.",
          "version": "2"
        },
        "maxTimeoutSeconds": 120,
        "network": "eip155:137",
        "payTo": "0xA2A8dF0f7CaaBEa4e120a2568118f141569fc8aa",
        "scheme": "exact"
      },
      {
        "amount": "10000",
        "asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
        "extra": {
          "assetTransferMethod": "eip3009",
          "facilitatorOnly": true,
          "memo": "saylor:datadesk:chainlink-price",
          "name": "USD Coin",
          "note": "Arbitrum settles through an x402 facilitator. Send payload.signature and payload.authorization (EIP-3009); there is no self-submitted path on this network.",
          "version": "2"
        },
        "maxTimeoutSeconds": 120,
        "network": "eip155:42161",
        "payTo": "0xA2A8dF0f7CaaBEa4e120a2568118f141569fc8aa",
        "scheme": "exact"
      },
      {
        "amount": "10000",
        "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
        "extra": {
          "feePayer": "D6ZhtNQ5nT9ZnTHUbqXZsTx5MH2rPFiBBggX4hY1WePM",
          "memo": "saylor:datadesk:chainlink-price",
          "reference": "Db5shTxoHEhKymZYqHBvYrW1okaubwY11DmEnGzMC5S9",
          "session": "eyJhcnRpY2xlSWQiOiJkYXRhZGVzazpjaGFpbmxpbmstcHJpY2UiLCJyZWZlcmVuY2UiOiJEYjVzaFR4b0hFaEt5bVpZcUhCdllyVzFva2F1YndZMTFEbUVuR3pNQzVTOSIsInJlY2lwaWVudCI6IjdMU2pmckpmOGZOc0I4VkE5dTdOM1dFbjI1c21RTHBvYjNTdnlVdlhhY3k3IiwibWludCI6IkVQakZXZGQ1QXVmcVNTcWVNMnFOMXh6eWJhcEM4RzR3RUdHa1p3eVREdDF2IiwibWluQW1vdW50IjoxMDAwMCwiZXhwIjoxNzkyNDE5NTYwMDY4fQ.X00KIYvnatL5wthk3uO2ddCpGPph8yKn5xMJbGbtDo8"
        },
        "maxTimeoutSeconds": 120,
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
        "scheme": "exact"
      },
      {
        "amount": "10000",
        "asset": "Es9vMFrzaCERmJfrF4H2FYD4KCoNkY11McCe8BenwNYB",
        "extra": {
          "feePayer": "D6ZhtNQ5nT9ZnTHUbqXZsTx5MH2rPFiBBggX4hY1WePM",
          "memo": "saylor:datadesk:chainlink-price",
          "reference": "612NzxPzbaPr3fAba4dcTKiGwy8YtbvokeXcyMKnpJYi",
          "session": "eyJhcnRpY2xlSWQiOiJkYXRhZGVzazpjaGFpbmxpbmstcHJpY2UiLCJyZWZlcmVuY2UiOiI2MTJOenhQemJhUHIzZkFiYTRkY1RLaUd3eThZdGJ2b2tlWGN5TUtucEpZaSIsInJlY2lwaWVudCI6IjdMU2pmckpmOGZOc0I4VkE5dTdOM1dFbjI1c21RTHBvYjNTdnlVdlhhY3k3IiwibWludCI6IkVzOXZNRnJ6YUNFUm1KZnJGNEgyRllENEtDb05rWTExTWNDZThCZW53TllCIiwibWluQW1vdW50IjoxMDAwMCwiZXhwIjoxNzkyNDE5NTYwMDY4fQ.n25PkloAO9WXHaKOgSNou96uTS_gHmgl4UfBmq4kugM"
        },
        "maxTimeoutSeconds": 120,
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
        "scheme": "exact"
      },
      {
        "amount": "93286",
        "asset": "So11111111111111111111111111111111111111112",
        "extra": {
          "memo": "saylor:datadesk:chainlink-price",
          "native": true,
          "note": "Native SOL: send lamports with a system transfer, not an SPL transfer. Price is quoted live and this quote expires in 120s.",
          "quotedLamports": "96172",
          "reference": "CwQSCM5F4pURgzQwUmApqqMgGyDvmFs7mcZdXUsTRuWz",
          "session": "eyJhcnRpY2xlSWQiOiJkYXRhZGVzazpjaGFpbmxpbmstcHJpY2UiLCJyZWZlcmVuY2UiOiJDd1FTQ001RjRwVVJnelF3VW1BcHFxTWdHeUR2bUZzN21jWmRYVXNUUnVXeiIsInJlY2lwaWVudCI6IjdMU2pmckpmOGZOc0I4VkE5dTdOM1dFbjI1c21RTHBvYjNTdnlVdlhhY3k3IiwibWludCI6bnVsbCwibWluQW1vdW50Ijo5MzI4NiwiZXhwIjoxNzkyNDE5NTYwMDY4fQ.NNMkBwHmCi44DRyCNpepC0Yv6l6Qj6-T_7xjRBrnoHo",
          "solUsdPrice": 103.98
        },
        "maxTimeoutSeconds": 120,
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
        "scheme": "exact"
      }
    ],
    "description": "Chainlink price feed read on-chain for any pair on 7 chains - price, round id, last update and age, heartbeat, deviation threshold and a stale or fresh verdict",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "queryParams": {
              "chain": "ethereum",
              "feed": "ETH/USD"
            },
            "type": "http"
          },
          "output": {
            "example": {
              "age_seconds": 2567,
              "asset_class": "Crypto",
              "chain": "ethereum",
              "decimals": 8,
              "deviation_threshold_percent": 0.5,
              "feed": "ETH / USD",
              "heartbeat_seconds": 3600,
              "note": "Read on-chain from the Chainlink aggregator proxy via public RPC. status is stale when the last update is older than the heartbeat plus 10%.",
              "price": 2429.04681627,
              "proxy_address": "0x5f4eC3Df9cbd43714FE2740f5E3616155c5b8419",
              "round_id": "129127208515966896043",
              "source": "Chainlink data feeds + public RPC",
              "status": "fresh",
              "updated_at": "2026-10-17T06:29:11.000Z"
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "method": {
                  "enum": [
                    "GET"
                  ],
                  "type": "string"
                },
                "queryParams": {
                  "properties": {
                    "chain": {
                      "description": "ethereum (default), base, arbitrum, optimism, polygon, bsc, avalanche",
                      "type": "string"
                    },
                    "feed": {
                      "description": "Feed pair, e.g. ETH/USD, BTC/USD, LINK/USD",
                      "type": "string"
                    }
                  },
                  "required": [
                    "feed"
                  ],
                  "type": "object"
                },
                "type": {
                  "const": "http",
                  "type": "string"
                }
              },
              "required": [
                "type",
                "method"
              ],
              "type": "object"
            },
            "output": {
              "properties": {
                "example": {
                  "properties": {
                    "age_seconds": {
                      "description": "Age, in seconds",
                      "type": "number"
                    },
                    "asset_class": {
                      "description": "Asset class",
                      "type": [
                        "string",
                        "null"
                      ]
                    },
                    "chain": {
                      "description": "Blockchain the data is for",
                      "type": "string"
                    },
                    "decimals": {
                      "description": "Token decimal places",
                      "type": "number"
                    },
                    "deviation_threshold_percent": {
                      "description": "Deviation threshold, as a percentage",
                      "type": [
                        "number",
                        "null"
                      ]
                    },
                    "feed": {
                      "description": "Human-readable feed pair such as ETH / USD",
                      "type": "string"
                    },
                    "heartbeat_seconds": {
                      "description": "Heartbeat, in seconds",
                      "type": [
                        "number",
                        "null"
                      ]
                    },
                    "note": {
                      "description": "Caveat or context for reading the result",
                      "type": "string"
                    },
                    "price": {
                      "description": "Price",
                      "type": "number"
                    },
                    "proxy_address": {
                      "description": "Proxy address",
                      "type": "string"
                    },
                    "round_id": {
                      "description": "Round id identifier",
                      "type": "string"
                    },
                    "source": {
                      "description": "Data source the values come from",
                      "type": "string"
                    },
                    "status": {
                      "description": "Current status",
                      "type": "string"
                    },
                    "updated_at": {
                      "description": "Updated at (UTC unless a time zone is given)",
                      "type": "string"
                    }
                  },
                  "required": [
                    "feed",
                    "price",
                    "status"
                  ],
                  "type": "object"
                },
                "type": {
                  "const": "json",
                  "type": "string"
                }
              },
              "required": [
                "type"
              ],
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      }
    },
    "iconUrl": "https://res.cloudinary.com/bdb-prod/image/upload/c_fill,ar_1:1,w_256,h_256,f_auto,q_auto/v1791811517/bazaar-icons/bc5e2b3d111ebbef.jpg",
    "lastUpdated": "2026-10-19T14:17:20.123Z",
    "quality": {
      "l30DaysTotalCalls": 2,
      "l30DaysUniquePayers": 2,
      "lastCalledAt": "2026-10-19T14:17:19.789Z"
    },
    "resource": "https://saylorinnovations.com/api/chainlink/price",
    "serviceName": "Saylor Innovations Data Desk",
    "tags": [
      "chainlink eth usd price",
      "chainlink price feed latest",
      "is chainlink feed stale",
      "oracle price on-chain",
      "latestRoundData eth/usd"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Chainlink price feed read on-chain for any pair on 7 chains - price, round id, last update and age, heartbeat, deviation threshold and a stale or fresh verdict"
}

What the leaf hashes

{"body":"0b8bb859a6df428773552558f8bc130d270b4bfad16f58b61a65a54e9a37c523","id":119525,"kind":"listing","method":"baseline/1","observed_us":1793025615766535,"prev":null,"subject":"x402_bazaar:https://saylorinnovations.com/api/chainlink/price","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. 0xbd0ea2ce4bfb8e42f6efa0ee9ac04d23cd7af83b7c08c0f431738f42e011254d
2. 0xbfcd7a044e7f2dda637d5e7c0b45707935c3b2f81339fe6f72b1a0f8c481691e
3. 0xe67d458f494162c53cb02b754b34e6ba5312ca11a6289779f008f0716bf5751f
4. 0x719cbd588c857a10fcc986511ddf22d4c6c6617d4d6b41d7f02f1ac4bb4eba99
5. 0x48facfea52c404d7d7f85805ccf377bbb20c969c9697b6951e9da0cff84a03f9
6. 0xb66047e9092293e84ab4845e8699c028f0fac049ad628ee46d0248ab9dd5806e
7. 0xf2cc16a91d4b8f281ddf2b768be5e49a6c43aed3b6b3efed96e89ad45a45d5f1
8. 0xe02d20198d0a38058f13dffb86a054b3c5bb89d1cc8fe9c1558da9e8233b5cb2
9. 0x64a2f21b5af86d870bb79dbf55048006abbad7fee92c3e44e2ea5cf5c80c86af
10. 0x70fe24d78b58f8abec40e79e3452c3ede45cf737f4a71973b737bc6cdda64101
11. 0x135102b1595b48b3b1604ed9b55766b9654dc2e33631a8be15cb316d09a36075
12. 0xa6f71fd6c3a59323bf7c5386a54935b14c555d8c717289cc73700f56d86994cd
13. 0xd5b5bb5812612371a70171b2252d90e95bb0581ea5a3be198122adc8442e4f79
14. 0xf692ce2b0a640ec9f75aa960e5fb1c2c7091a04e24881798735752c19014e519
15. 0x9f68b5e15459cb62b8c0cd4c124fa61c74147b4a5755a200fbecd21a581635d1
16. 0x123ec8bee20ddc55223eeef5a4f4d6c4b6416515adbb911c56759f5cde56e452
17. 0xd0651cb9bc8155eb52b5247d506e74b8a935057dc190ba52091702ac25ed3a40
18. 0x9a9024edb5069d88a324facb310a5ce8e495214bbaa968f077bede437390194f
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae