Evidence row 1791918

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://saylorinnovations.com/api/kb/systemd-failure"
    ]
  ],
  "name": "Saylor Innovations Guide Library",
  "owner_address": "0xa2a8df0f7caabea4e120a2568118f141569fc8aa",
  "raw": {
    "accepts": [
      {
        "amount": "10000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "assetTransferMethod": "eip3009",
          "facilitatorOnly": true,
          "memo": "saylor:systemd-failure",
          "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:systemd-failure",
          "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:systemd-failure",
          "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:systemd-failure",
          "reference": "3AzN72ZqbdYtCBMpjpK7pQwgyknjAyKbZgMHVQrckasv",
          "session": "eyJhcnRpY2xlSWQiOiJzeXN0ZW1kLWZhaWx1cmUiLCJyZWZlcmVuY2UiOiIzQXpONzJacWJkWXRDQk1wanBLN3BRd2d5a25qQXlLYlpnTUhWUXJja2FzdiIsInJlY2lwaWVudCI6IjdMU2pmckpmOGZOc0I4VkE5dTdOM1dFbjI1c21RTHBvYjNTdnlVdlhhY3k3IiwibWludCI6IkVQakZXZGQ1QXVmcVNTcWVNMnFOMXh6eWJhcEM4RzR3RUdHa1p3eVREdDF2IiwibWluQW1vdW50IjoxMDAwMCwiZXhwIjoxNzkyNDM1MTkxOTQ5fQ.OleTCyKhrY3PmtxH0XsFATyte2eKL5DVOpr7kE_KdX0"
        },
        "maxTimeoutSeconds": 120,
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
        "scheme": "exact"
      },
      {
        "amount": "10000",
        "asset": "Es9vMFrzaCERmJfrF4H2FYD4KCoNkY11McCe8BenwNYB",
        "extra": {
          "feePayer": "D6ZhtNQ5nT9ZnTHUbqXZsTx5MH2rPFiBBggX4hY1WePM",
          "memo": "saylor:systemd-failure",
          "reference": "9PmaVuT2rsJB8KiJPr45qkFQtRSu8seizizV825shTyz",
          "session": "eyJhcnRpY2xlSWQiOiJzeXN0ZW1kLWZhaWx1cmUiLCJyZWZlcmVuY2UiOiI5UG1hVnVUMnJzSkI4S2lKUHI0NXFrRlF0UlN1OHNlaXppelY4MjVzaFR5eiIsInJlY2lwaWVudCI6IjdMU2pmckpmOGZOc0I4VkE5dTdOM1dFbjI1c21RTHBvYjNTdnlVdlhhY3k3IiwibWludCI6IkVzOXZNRnJ6YUNFUm1KZnJGNEgyRllENEtDb05rWTExTWNDZThCZW53TllCIiwibWluQW1vdW50IjoxMDAwMCwiZXhwIjoxNzkyNDM1MTkxOTQ5fQ.piYNr-QKPLJk6_wDwP-7OpAN0W7kiVKHVLLOEsq0erc"
        },
        "maxTimeoutSeconds": 120,
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
        "scheme": "exact"
      },
      {
        "amount": "93394",
        "asset": "So11111111111111111111111111111111111111112",
        "extra": {
          "memo": "saylor:systemd-failure",
          "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": "96283",
          "reference": "AB9SzYCr17pw9ZuCewpErYLeYQoS4KGkgmYTfMgsAVzs",
          "session": "eyJhcnRpY2xlSWQiOiJzeXN0ZW1kLWZhaWx1cmUiLCJyZWZlcmVuY2UiOiJBQjlTellDcjE3cHc5WnVDZXdwRXJZTGVZUW9TNEtHa2dtWVRmTWdzQVZ6cyIsInJlY2lwaWVudCI6IjdMU2pmckpmOGZOc0I4VkE5dTdOM1dFbjI1c21RTHBvYjNTdnlVdlhhY3k3IiwibWludCI6bnVsbCwibWluQW1vdW50Ijo5MzM5NCwiZXhwIjoxNzkyNDM1MTkxOTg1fQ.zWmr_RyLm6k1knMSRDAsPAuK5sVBcyWELr3Iru6_oyM",
          "solUsdPrice": 103.86
        },
        "maxTimeoutSeconds": 120,
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
        "scheme": "exact"
      }
    ],
    "description": "Systemd failure resolver - service identity, environment, dependencies, restart limits and rollback",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "type": "http"
          },
          "output": {
            "example": {
              "body": "A systemd unit that starts reliably under its real service identity and environment, passes application readiness, obeys dependency/restart limits, and has a documented failure cause and rollback.",
              "c": "Linux & Systems",
              "id": "systemd-failure",
              "t": "systemd Failure Resolver"
            },
            "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": {
                    "body": {
                      "description": "Main body text",
                      "type": "string"
                    },
                    "c": {
                      "description": "Category of the guide",
                      "type": "string"
                    },
                    "id": {
                      "description": "Identifier of the record",
                      "type": "string"
                    },
                    "license": {
                      "description": "License identifier",
                      "type": "string"
                    },
                    "price": {
                      "description": "Price",
                      "type": [
                        "number",
                        "null"
                      ]
                    },
                    "t": {
                      "description": "Title of the guide",
                      "type": "string"
                    }
                  },
                  "required": [
                    "id",
                    "t",
                    "c",
                    "body"
                  ],
                  "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/v1790235422/bazaar-icons/bc5e2b3d111ebbef.jpg",
    "lastUpdated": "2026-10-19T18:37:52.117Z",
    "quality": {
      "l30DaysTotalCalls": 2,
      "l30DaysUniquePayers": 2,
      "lastCalledAt": "2026-10-19T18:37:51.454Z"
    },
    "resource": "https://saylorinnovations.com/api/kb/systemd-failure",
    "serviceName": "Saylor Innovations Guide Library",
    "tags": [
      "systemd",
      "service-failure",
      "journalctl",
      "linux"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Systemd failure resolver - service identity, environment, dependencies, restart limits and rollback"
}

What the leaf hashes

{"body":"5f736cde568a6c96e26d331567783131e09a9ba8e095e8e4d419ccf8cf2548e9","id":1791918,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793559996563866,"prev":120327,"subject":"x402_bazaar:https://saylorinnovations.com/api/kb/systemd-failure","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-11-01 (302406 rows).

1. 0x6166e8b6419dd81bfa4d844b8a25b17d88ab75edb1b1ca575677639bea985894
2. 0x6add1c5b8b337a1f08ea8528d135c57c82b8e89f9c5687c19693514efde4c9ca
3. 0x5a1a730433a502d5d49b4b95076e7131f185347ae200a89044937c2a503f768a
4. 0x23ab2934839fb2b24789397742cbe69f9f091bbf43ee07db98427ef800f77a47
5. 0xcca1031cb35db90c08113e4765f499077cd547240fa5ce8cb93637ef3919048e
6. 0xd1ba2ec8feed7ae200fe54c88f6c72c47bb27a1511e18e35a520f583e9928d7f
7. 0x320c22d1b1c970cd23884984d6ed8a5820c190a277dc009ad63a54d4e7b484bd
8. 0x09acaa8a41b6a20a266982efba8b2a2e4809a4705009baa35a928d81eed32758
9. 0xf7bb460ab6fceb35a9463b3894da51c1053d2a353ae020cefd4cbcaf0f122aed
10. 0x8531498d617ab9ad70766b3ec1d3e472434f712c7d0e1fc6a43f9ee5ebdff5e3
11. 0x957eaaf63ad438831af3ee3261567046482f51ca9134d22908db67349bb16be7
12. 0x643fddbc4e5daec7779e033aaeb09d8383959e60b29090bd7b19a0e38a542a6f
13. 0x0aa7bcd64ab1520080bf6bd72a75d5f377537629b47f20b8e8d9418871f23602
14. 0xf2a2a0157f28bf3255c9b6847cbe675ba213d3983bbfe1c0848c216c57838e54
15. 0x7c66173839ef153f08dfd346f7ea956e9226e1b7ff05bf4c6cf27436953f336b
16. 0xc1f6e8dd182b37cbb6e04d0e69486bd40d440934f8e373b9bae8cb78de508bba
17. 0x97f6f39e601b6ef0e47b730aa0488b718c0d7882ad840342bbd7d3a705a1b3a2
18. 0x1973893697931b7512ae5dc1a3c92ef92f633ae3574dce9029a35b5e94d2d364
19. 0x3315fd2757fdd435852cc277377234a3f3909a6d2a089d0e36f6d59aacfda910

Day root

0x7fa2cba1cf3d6b35630896f5fe1a650adb307ea2c376e80a5f2d9276b7cb5ab3

Chained

0x577ff89ba012beeff3197bcff7fa86752074bdf54205a24359cc437be2a952a4

Published

On Arc Testnet, block 70262758: 0x435bc1b9331471d72e1998f2e420983b5189d4da65ffbd6f27ef40daf5e1ea90