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Evidence row 120186

Observed , by baseline/1.

Kind
listing
About
source_record x402_bazaar:https://saylorinnovations.com/api/kb/mastering-lorawan-for-iot-projects
Recorded
Previous row
None: the first of its kind about this subject
Body SHA-256
b145895f6253767dc19ab4e06e899553ec8558052aa16f147b5cb8b082e45adb
Leaf
0x6c8a377be46801aa66c3ab53154664291ecea58475c1004de214cfaa43e90ddc

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://saylorinnovations.com/api/kb/mastering-lorawan-for-iot-projects"
    ]
  ],
  "name": "Saylor Innovations Guide Library",
  "owner_address": "0xa2a8df0f7caabea4e120a2568118f141569fc8aa",
  "raw": {
    "accepts": [
      {
        "amount": "10000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "assetTransferMethod": "eip3009",
          "facilitatorOnly": true,
          "memo": "saylor:mastering-lorawan-for-iot",
          "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:mastering-lorawan-for-iot",
          "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:mastering-lorawan-for-iot",
          "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:mastering-lorawan-for-iot",
          "reference": "QK81i9dSpCzk46XcgkGsAMFTkBju5VRwLBkZYUA6eM4",
          "session": "eyJhcnRpY2xlSWQiOiJtYXN0ZXJpbmctbG9yYXdhbi1mb3ItaW90LXByb2plY3RzIiwicmVmZXJlbmNlIjoiUUs4MWk5ZFNwQ3prNDZYY2drR3NBTUZUa0JqdTVWUndMQmtaWVVBNmVNNCIsInJlY2lwaWVudCI6IjdMU2pmckpmOGZOc0I4VkE5dTdOM1dFbjI1c21RTHBvYjNTdnlVdlhhY3k3IiwibWludCI6IkVQakZXZGQ1QXVmcVNTcWVNMnFOMXh6eWJhcEM4RzR3RUdHa1p3eVREdDF2IiwibWluQW1vdW50IjoxMDAwMCwiZXhwIjoxNzkyNDEyNjIwOTg3fQ.JNbydLmsk3ZYf-K2Vr39sKxcz7UIUigh7km_gGfcXr4"
        },
        "maxTimeoutSeconds": 120,
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
        "scheme": "exact"
      },
      {
        "amount": "10000",
        "asset": "Es9vMFrzaCERmJfrF4H2FYD4KCoNkY11McCe8BenwNYB",
        "extra": {
          "feePayer": "D6ZhtNQ5nT9ZnTHUbqXZsTx5MH2rPFiBBggX4hY1WePM",
          "memo": "saylor:mastering-lorawan-for-iot",
          "reference": "CxmaQxgJx7Hs4xGFRibu2QUBUGCLHw3wgSwfF7SXfKpZ",
          "session": "eyJhcnRpY2xlSWQiOiJtYXN0ZXJpbmctbG9yYXdhbi1mb3ItaW90LXByb2plY3RzIiwicmVmZXJlbmNlIjoiQ3htYVF4Z0p4N0hzNHhHRlJpYnUyUVVCVUdDTEh3M3dnU3dmRjdTWGZLcFoiLCJyZWNpcGllbnQiOiI3TFNqZnJKZjhmTnNCOFZBOXU3TjNXRW4yNXNtUUxwb2IzU3Z5VXZYYWN5NyIsIm1pbnQiOiJFczl2TUZyemFDRVJtSmZyRjRIMkZZRDRLQ29Oa1kxMU1jQ2U4QmVud05ZQiIsIm1pbkFtb3VudCI6MTAwMDAsImV4cCI6MTc5MjQxMjYyMDk4OH0.pVq-CR1iMubDoImCo22gC1r7-INGc2fgRQiBNI4qcxQ"
        },
        "maxTimeoutSeconds": 120,
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
        "scheme": "exact"
      },
      {
        "amount": "92222",
        "asset": "So11111111111111111111111111111111111111112",
        "extra": {
          "memo": "saylor:mastering-lorawan-for-iot",
          "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": "95075",
          "reference": "8FDr8xxKjL5GUzfY4rfVhT36EB7J1kjaqVwEQa1sH7RX",
          "session": "eyJhcnRpY2xlSWQiOiJtYXN0ZXJpbmctbG9yYXdhbi1mb3ItaW90LXByb2plY3RzIiwicmVmZXJlbmNlIjoiOEZEcjh4eEtqTDVHVXpmWTRyZlZoVDM2RUI3SjFramFxVndFUWExc0g3UlgiLCJyZWNpcGllbnQiOiI3TFNqZnJKZjhmTnNCOFZBOXU3TjNXRW4yNXNtUUxwb2IzU3Z5VXZYYWN5NyIsIm1pbnQiOm51bGwsIm1pbkFtb3VudCI6OTIyMjIsImV4cCI6MTc5MjQxMjYyMTAyMH0.H0sUi8muCuW44iY5rJo9BkWj5jeesTEI1VuW4X-BxcQ",
          "solUsdPrice": 105.18
        },
        "maxTimeoutSeconds": 120,
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
        "scheme": "exact"
      }
    ],
    "description": "Mastering LoRaWAN for IoT Projects. An overview of LoRaWAN for IoT: the architecture (end nodes, gateways, network server handling de-dup/ADR, application server), the power-vs-latency tradeoffs of Class A/B/C devices, typical 2–15 km range, and real-world uses in agriculture, smart cities, asset tracking, and industry.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "type": "http"
          },
          "output": {
            "example": {
              "body": "An overview of LoRaWAN for IoT: the architecture (end nodes, gateways, network server handling de-dup/ADR, application server), the power-vs-latency tradeoffs of Class A/B/C devices, typical 2–15 km range, and real-world uses in agriculture, smart cities, asset tracking, and industry.",
              "c": "IoT & Hardware",
              "id": "mastering-lorawan-for-iot-projects",
              "t": "Mastering LoRaWAN for IoT Projects"
            },
            "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": "2026-10-19T12:21:41.052Z",
    "quality": {
      "l30DaysTotalCalls": 4,
      "l30DaysUniquePayers": 3,
      "lastCalledAt": "2026-10-19T12:21:40.755Z"
    },
    "resource": "https://saylorinnovations.com/api/kb/mastering-lorawan-for-iot-projects",
    "serviceName": "Saylor Innovations Guide Library",
    "tags": [
      "lorawan",
      "iot",
      "wireless",
      "gateways",
      "sensors"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Mastering LoRaWAN for IoT Projects. An overview of LoRaWAN for IoT: the architecture (end nodes, gateways, network server handling de-dup/ADR, application server), the power-vs-latency tradeoffs of Class A/B/C devices, typical 2–15 km range, and real-world uses in agriculture, smart cities, asset tracking, and industry."
}

What the leaf hashes

{"body":"b145895f6253767dc19ab4e06e899553ec8558052aa16f147b5cb8b082e45adb","id":120186,"kind":"listing","method":"baseline/1","observed_us":1793025617464036,"prev":null,"subject":"x402_bazaar:https://saylorinnovations.com/api/kb/mastering-lorawan-for-iot-projects","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of (296695 rows).

  1. 0x6c8a4f6b86eca5e55dd8a8389d5dab466a3eb313922cf353c247a21f1b4f6ffc
  2. 0xd789b481fecfc7456fcdc88437e890d3fcd48de2bbd241a4fb46e166cf67e8eb
  3. 0xc14aef74c64349bef0efb5b46f494e1d5ae404ca933af23bb882f6004aeefbdf
  4. 0x523d14055b0c88561503d9e7949fb52e1efb6789cc5dd1df7831722ec41aba6d
  5. 0x37410db36894d6b8e112811b555eea1101622ad536a34592ce31782c645534f7
  6. 0x0a35948421efac0ccaf2cbadd799a4952fda506ed5b06651734de8b5960ba26f
  7. 0x1422565292310953f6cdfb9beb02e8dd9d67fd1ff2cd777f1466a3e451307ddf
  8. 0x7915f9e9e59cdae305da77c553d162295cffa3fa4dd9f250b2a5114375ba1d72
  9. 0x1a37c86fce14864e42bd2296d96ce1abef13b9e0b95aa70b0762defaf596562a
  10. 0x1631828b23a467fa68c73bdcda698bee8945c692a3555bc7926782e27495a209
  11. 0xaf4d0478104c20d31096b9739629a924615768419c52449971b47a4881ebc159
  12. 0x929b3f59cbf01edbae456522161805dd51e098dc3a66d845508de46581bb953c
  13. 0x9dc4d6f64bc3c323d2c45a28209068cd473b6979bd632a0d694bf94d19bc39df
  14. 0xfc9b5a81a7a83a1c735a4fe64590beb9db14d2366f463161358af28c3ea9a81d
  15. 0xa2d436d488e3600b0e5c3e3ed9c9234cd52853c59830b786334fd0c4292d9f40
  16. 0x47b89901b0f07938a6b9a66ddf35683903f79d756a7c7763665fd632758b08d0
  17. 0x9a83be955a206deb65b995adfd92c58fa31c95fbbf926bd199d300e70b08b26d
  18. 0x20704208aa6923d6b2450ef74ede87a6e0265d46447926038fe9506e9e154b2d
  19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a
Day root
0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8
Chained
0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a
Published
On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae

How to check it · This row as JSON