Evidence row 119831

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://saylorinnovations.com/api/explorer/ethereum/consensus"
    ]
  ],
  "name": "Saylor Innovations Data Desk",
  "owner_address": "0xa2a8df0f7caabea4e120a2568118f141569fc8aa",
  "raw": {
    "accepts": [
      {
        "amount": "10000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "assetTransferMethod": "eip3009",
          "facilitatorOnly": true,
          "memo": "saylor:datadesk:explorer-ethereu",
          "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:explorer-ethereu",
          "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:explorer-ethereu",
          "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": "GVJJ7rdGiXr5xaYbRwRbjfaJL7fmwRygFi1H6aGqDveb",
          "memo": "saylor:datadesk:explorer-ethereu",
          "reference": "DgXq3voFXZcGyrCnJ69PYq9iAFBGDs4eYNAyokLoKWvQ",
          "session": "eyJhcnRpY2xlSWQiOiJkYXRhZGVzazpleHBsb3Jlci1ldGhlcmV1bS1jb25zZW5zdXMiLCJyZWZlcmVuY2UiOiJEZ1hxM3ZvRlhaY0d5ckNuSjY5UFlxOWlBRkJHRHM0ZVlOQXlva0xvS1d2USIsInJlY2lwaWVudCI6IjdMU2pmckpmOGZOc0I4VkE5dTdOM1dFbjI1c21RTHBvYjNTdnlVdlhhY3k3IiwibWludCI6IkVQakZXZGQ1QXVmcVNTcWVNMnFOMXh6eWJhcEM4RzR3RUdHa1p3eVREdDF2IiwibWluQW1vdW50IjoxMDAwMCwiZXhwIjoxNzkyNzU3NTk1NDcwfQ.s4JoOiMzL9Mig2AqwPvDWIhjjvXJpUuXaSTEjo0Qr04"
        },
        "maxTimeoutSeconds": 120,
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
        "scheme": "exact"
      },
      {
        "amount": "10000",
        "asset": "Es9vMFrzaCERmJfrF4H2FYD4KCoNkY11McCe8BenwNYB",
        "extra": {
          "feePayer": "GVJJ7rdGiXr5xaYbRwRbjfaJL7fmwRygFi1H6aGqDveb",
          "memo": "saylor:datadesk:explorer-ethereu",
          "reference": "76QDMrArHvAhjCRJdyLxM81FcXSLH1h2F3bJnrEE9XjC",
          "session": "eyJhcnRpY2xlSWQiOiJkYXRhZGVzazpleHBsb3Jlci1ldGhlcmV1bS1jb25zZW5zdXMiLCJyZWZlcmVuY2UiOiI3NlFETXJBckh2QWhqQ1JKZHlMeE04MUZjWFNMSDFoMkYzYkpuckVFOVhqQyIsInJlY2lwaWVudCI6IjdMU2pmckpmOGZOc0I4VkE5dTdOM1dFbjI1c21RTHBvYjNTdnlVdlhhY3k3IiwibWludCI6IkVzOXZNRnJ6YUNFUm1KZnJGNEgyRllENEtDb05rWTExTWNDZThCZW53TllCIiwibWluQW1vdW50IjoxMDAwMCwiZXhwIjoxNzkyNzU3NTk1NDcwfQ.heLiIOgPNy4V-yTLhYNQaE7Nd9IvSE5ViBgryt9-764"
        },
        "maxTimeoutSeconds": 120,
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
        "scheme": "exact"
      },
      {
        "amount": "93071",
        "asset": "So11111111111111111111111111111111111111112",
        "extra": {
          "memo": "saylor:datadesk:explorer-ethereu",
          "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": "95950",
          "reference": "2Coq81vVjkqVkJQkz6dPgoCNqXKyDzNJRrugu24Tvbzy",
          "session": "eyJhcnRpY2xlSWQiOiJkYXRhZGVzazpleHBsb3Jlci1ldGhlcmV1bS1jb25zZW5zdXMiLCJyZWZlcmVuY2UiOiIyQ29xODF2VmprcVZrSlFrejZkUGdvQ05xWEt5RHpOSlJydWd1MjRUdmJ6eSIsInJlY2lwaWVudCI6IjdMU2pmckpmOGZOc0I4VkE5dTdOM1dFbjI1c21RTHBvYjNTdnlVdlhhY3k3IiwibWludCI6bnVsbCwibWluQW1vdW50Ijo5MzA3MSwiZXhwIjoxNzkyNzU3NTk1NDcwfQ.FFgO1vSXjv4NUQIOO1uVPSIfJqblV7w2AO324sF3wTc",
          "solUsdPrice": 104.22
        },
        "maxTimeoutSeconds": 120,
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
        "scheme": "exact"
      }
    ],
    "description": "Ethereum consensus layer status: head slot and epoch, justified and finalized epochs, finality lag with a health flag, and beacon node sync state.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "type": "http"
          },
          "output": {
            "example": {
              "chain": "ethereum",
              "epochs_since_finality": 2,
              "execution_client_offline": false,
              "finalized_epoch": 483660,
              "head_epoch": 483662,
              "head_proposer_index": 2235199,
              "head_root": "0xbb7ccad14a6688f10e60f88a119aacf6bd72c466f920e8d7b7352e7a25272498",
              "head_slot": 15477188,
              "is_finalizing_normally": true,
              "is_syncing": false,
              "justified_epoch": 483661,
              "note": "Finality normally trails the head by 2 epochs (about 13 minutes); more than 3 epochs behind means the chain is not finalizing normally. Read from the chain's public node API at request time.",
              "source": "Ethereum Beacon API (public endpoint)",
              "sync_distance": 0
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "method": {
                  "enum": [
                    "GET"
                  ],
                  "type": "string"
                },
                "type": {
                  "const": "http",
                  "type": "string"
                }
              },
              "required": [
                "type",
                "method"
              ],
              "type": "object"
            },
            "output": {
              "properties": {
                "example": {
                  "properties": {
                    "chain": {
                      "description": "the chain this describes",
                      "type": "string"
                    },
                    "epochs_since_finality": {
                      "description": "head epoch minus finalized epoch",
                      "type": "number"
                    },
                    "execution_client_offline": {
                      "description": "true when its execution client is offline",
                      "type": "boolean"
                    },
                    "finalized_epoch": {
                      "description": "latest finalized epoch",
                      "type": "number"
                    },
                    "head_epoch": {
                      "description": "epoch of the head slot",
                      "type": "number"
                    },
                    "head_proposer_index": {
                      "description": "validator that proposed the head block",
                      "type": "number"
                    },
                    "head_root": {
                      "description": "block root of the head",
                      "type": "string"
                    },
                    "head_slot": {
                      "description": "latest slot",
                      "type": "number"
                    },
                    "is_finalizing_normally": {
                      "description": "true when finality lags the head by 3 epochs or less",
                      "type": "boolean"
                    },
                    "is_syncing": {
                      "description": "true when the beacon node is syncing",
                      "type": "boolean"
                    },
                    "justified_epoch": {
                      "description": "latest justified epoch",
                      "type": "number"
                    },
                    "note": {
                      "description": "plain-language reading of the result, including units",
                      "type": "string"
                    },
                    "source": {
                      "description": "where the data was read from",
                      "type": "string"
                    },
                    "sync_distance": {
                      "description": "slots behind the network head",
                      "type": "number"
                    }
                  },
                  "required": [
                    "chain",
                    "head_slot",
                    "head_epoch",
                    "finalized_epoch",
                    "epochs_since_finality",
                    "is_finalizing_normally",
                    "note",
                    "source"
                  ],
                  "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/v1792548358/bazaar-icons/bc5e2b3d111ebbef.jpg",
    "lastUpdated": "2026-10-23T12:11:15.51Z",
    "quality": {
      "l30DaysTotalCalls": 2,
      "l30DaysUniquePayers": 2,
      "lastCalledAt": "2026-10-23T12:11:15.256Z"
    },
    "resource": "https://saylorinnovations.com/api/explorer/ethereum/consensus",
    "serviceName": "Saylor Innovations Data Desk",
    "tags": [
      "ethereum finality status",
      "beacon chain head slot",
      "ethereum finalized epoch",
      "consensus layer health",
      "epochs since finality"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Ethereum consensus layer status: head slot and epoch, justified and finalized epochs, finality lag with a health flag, and beacon node sync state."
}

What the leaf hashes

{"body":"d86c874ed1d61948489811179cad9a3337d13ce106bb3c6bd8b75e986f83714e","id":119831,"kind":"listing","method":"baseline/1","observed_us":1793025616553228,"prev":null,"subject":"x402_bazaar:https://saylorinnovations.com/api/explorer/ethereum/consensus","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. 0xae97269b6522b11e85d4c6caed5fbc6675db058344ddb67bd47d6b0a9d9fedd2
2. 0x45bef6a552d23c91d470e12bf0fcde421b49e51809298d4b1288135c38d5aee0
3. 0x951845cfde4abb58f252f6c09195c8232a6062c9ec3f2c7ed93665e226e70238
4. 0xd77a584d38db0588e8ec38893ddf3e87f421acd20fe7a91e3c670ca719905f8a
5. 0x51d7d3f66d5432bf7d85b03c6647470a36d782301414153bf869f3052aa44df0
6. 0x8adfbd39dc5dded6bae7e1acbcf04e4be726ddc25a60cc5927c1c4dd82c768f2
7. 0x73e1fed4c30d0965f7560688fca95249e28b74af5d3231c1f32becd93eb3efdb
8. 0x92165b71797a2bff2e5630ac5e606dfa99f0700a09638abf6facbf677c5b94f2
9. 0x678b1c9db442ba319d1ce0624f056800a687e318e58a68153fd148b99c12a45b
10. 0xc5e28a96a833c7f6f25661bd128ed0a3708d099cd3594f653200c1fee17d99d4
11. 0x3ed84d9e7fe1a3a53a5614d97b48e393d726ca06109e83696375afe5ad01fd8f
12. 0x51f06c175a7c946ebe50ef243d6f9370a8fe85c996e53eff19ffcc4585ea8c18
13. 0xe292b5a99219f136bce6647ce74b21240a1c7331d2475b1839220fd363c94217
14. 0x3b4dba7d874fc323b0a364140a9c60f37bf547fe671897653118a9873fe03420
15. 0x1a74ed3b3756b9cd946da49701bcec120ec88645013da99fa9eea60b39e1a570
16. 0x123ec8bee20ddc55223eeef5a4f4d6c4b6416515adbb911c56759f5cde56e452
17. 0xd0651cb9bc8155eb52b5247d506e74b8a935057dc190ba52091702ac25ed3a40
18. 0x9a9024edb5069d88a324facb310a5ce8e495214bbaa968f077bede437390194f
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae