Evidence row 120237

Observed 26 Oct 2026, 14:40 UTC, by baseline/1.

Kind: listing
About: source_record x402_bazaar:https://saylorinnovations.com/api/kb/pwa-offline-reliability
Recorded: 26 Oct 2026, 14:40 UTC
Previous row: None: the first of its kind about this subject
Body SHA-256: c59394a155e2f357c4a64a5cbd705bae1bf9ad39bf67ae9a6eee255e29d597e9
Leaf: 0xb0388bf159db229671c16ede630d536d914733fbdb84fd4d62f3bfe3b1058995

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://saylorinnovations.com/api/kb/pwa-offline-reliability"
    ]
  ],
  "name": "Saylor Innovations Guide Library",
  "owner_address": "0xa2a8df0f7caabea4e120a2568118f141569fc8aa",
  "raw": {
    "accepts": [
      {
        "amount": "10000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "assetTransferMethod": "eip3009",
          "facilitatorOnly": true,
          "memo": "saylor:pwa-offline-reliability",
          "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:pwa-offline-reliability",
          "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:pwa-offline-reliability",
          "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": "Hc3sdEAsCGQcpgfivywog9uwtk8gUBUZgsxdME1EJy88",
          "memo": "saylor:pwa-offline-reliability",
          "reference": "HgTt6G1Emv7c4gAtCj5kJu2MDSxmWAqyiHHMqBzys5SE",
          "session": "eyJhcnRpY2xlSWQiOiJwd2Etb2ZmbGluZS1yZWxpYWJpbGl0eSIsInJlZmVyZW5jZSI6IkhnVHQ2RzFFbXY3YzRnQXRDajVrSnUyTURTeG1XQXF5aUhITXFCenlzNVNFIiwicmVjaXBpZW50IjoiN0xTamZySmY4Zk5zQjhWQTl1N04zV0VuMjVzbVFMcG9iM1N2eVV2WGFjeTciLCJtaW50IjoiRVBqRldkZDVBdWZxU1NxZU0ycU4xeHp5YmFwQzhHNHdFR0drWnd5VER0MXYiLCJtaW5BbW91bnQiOjEwMDAwLCJleHAiOjE3OTI0MzE1NTM4NDh9.QqdpjxCdYbW5_QPBYryt4x5XiXL0O4semva0g8yJf2M"
        },
        "maxTimeoutSeconds": 120,
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
        "scheme": "exact"
      },
      {
        "amount": "10000",
        "asset": "Es9vMFrzaCERmJfrF4H2FYD4KCoNkY11McCe8BenwNYB",
        "extra": {
          "feePayer": "Hc3sdEAsCGQcpgfivywog9uwtk8gUBUZgsxdME1EJy88",
          "memo": "saylor:pwa-offline-reliability",
          "reference": "FiEovfep8YQcWufYXdsfMG3hcxh2e8rvPDa78Eynr3AG",
          "session": "eyJhcnRpY2xlSWQiOiJwd2Etb2ZmbGluZS1yZWxpYWJpbGl0eSIsInJlZmVyZW5jZSI6IkZpRW92ZmVwOFlRY1d1ZllYZHNmTUczaGN4aDJlOHJ2UERhNzhFeW5yM0FHIiwicmVjaXBpZW50IjoiN0xTamZySmY4Zk5zQjhWQTl1N04zV0VuMjVzbVFMcG9iM1N2eVV2WGFjeTciLCJtaW50IjoiRXM5dk1GcnphQ0VSbUpmckY0SDJGWUQ0S0NvTmtZMTFNY0NlOEJlbndOWUIiLCJtaW5BbW91bnQiOjEwMDAwLCJleHAiOjE3OTI0MzE1NTM4NDh9.lXWgp-9CXMcQetjCMiN13F3THR_jE-QMd1XqR4KisWU"
        },
        "maxTimeoutSeconds": 120,
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
        "scheme": "exact"
      },
      {
        "amount": "93278",
        "asset": "So11111111111111111111111111111111111111112",
        "extra": {
          "memo": "saylor:pwa-offline-reliability",
          "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": "96163",
          "reference": "5jFb3yTbsrcLPWXKQW7vxRMQKmbmGJiF9dRvF81vJyzq",
          "session": "eyJhcnRpY2xlSWQiOiJwd2Etb2ZmbGluZS1yZWxpYWJpbGl0eSIsInJlZmVyZW5jZSI6IjVqRmIzeVRic3JjTFBXWEtRVzd2eFJNUUttYm1HSmlGOWRSdkY4MXZKeXpxIiwicmVjaXBpZW50IjoiN0xTamZySmY4Zk5zQjhWQTl1N04zV0VuMjVzbVFMcG9iM1N2eVV2WGFjeTciLCJtaW50IjpudWxsLCJtaW5BbW91bnQiOjkzMjc4LCJleHAiOjE3OTI0MzE1NTM4NDh9.1P62JrFskmjWvyMnOE28YSF3XAOwlG5Wu6-NgcTt8yE",
          "solUsdPrice": 103.99
        },
        "maxTimeoutSeconds": 120,
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
        "scheme": "exact"
      }
    ],
    "description": "PWA offline reliability - service worker updates, safe mutation queues and conflict handling",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "type": "http"
          },
          "output": {
            "example": {
              "body": "A PWA policy and test suite that defines which assets/data work offline, versions service-worker updates, queues only safe mutations, resolves conflicts, protects sensitive caches, and proves install, update, offline, reconnect, and recovery behavior.",
              "c": "Web & Domains",
              "id": "pwa-offline-reliability",
              "t": "Progressive Web App Offline Reliability"
            },
            "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": "2026-10-19T17:37:13.906Z",
    "quality": {
      "l30DaysTotalCalls": 3,
      "l30DaysUniquePayers": 3,
      "lastCalledAt": "2026-10-19T17:37:13.578Z"
    },
    "resource": "https://saylorinnovations.com/api/kb/pwa-offline-reliability",
    "serviceName": "Saylor Innovations Guide Library",
    "tags": [
      "pwa",
      "offline-first",
      "service-worker"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "PWA offline reliability - service worker updates, safe mutation queues and conflict handling"
}

What the leaf hashes

{"body":"c59394a155e2f357c4a64a5cbd705bae1bf9ad39bf67ae9a6eee255e29d597e9","id":120237,"kind":"listing","method":"baseline/1","observed_us":1793025617527195,"prev":null,"subject":"x402_bazaar:https://saylorinnovations.com/api/kb/pwa-offline-reliability","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).

0xb038afa349f0ccd3fcfbfd4d5198a73945ba56bde693b03e7d4697e97c3bc0c8
0xfd74c84638d98dd7918e445a1119795fdbf48787df19f039e18048df58bfa2c8
0x654349c7be71e063bc09deacad368f058cbd948dc23fe5bba11c58f128cee96b
0x67eb86a819263132fcbcd4f56485121d74eedd7dc630ce3da5fdcc41be423b49
0xaa95b254e4276c48ac358a36fa27f2d57667475e3d55e93bb5a4ab4ab06f3371
0x3505ac5544b91d5d600245617837404c258fe4f57fa87acbfbc2cdc48b5717d3
0x7db886ab107880d7d4c944665f0e9f91c1d40a2cd4951fc15e0c546b974efff0
0x25ddb26ededdfb07db9919971ddc2961002c5465401628aeb816276e6c6ff3ce
0xbf9086efe40424050f2a31a4fd23e219bc0989305eddb3ea641eee825cf2fa8d
0x5d229a70cb8a338132b9c1b10c932e2e3abbef97482280854392034434aba00c
0x3bebef69be15ae49fdf78639d05bdb957a983cd3565294a33f1d0a8a41913db8
0xd17258d4f01d074dcaf38f36218b36058144c3d50c3b488953a815c54d6674d2
0xe292b5a99219f136bce6647ce74b21240a1c7331d2475b1839220fd363c94217
0x3b4dba7d874fc323b0a364140a9c60f37bf547fe671897653118a9873fe03420
0x1a74ed3b3756b9cd946da49701bcec120ec88645013da99fa9eea60b39e1a570
0x123ec8bee20ddc55223eeef5a4f4d6c4b6416515adbb911c56759f5cde56e452
0xd0651cb9bc8155eb52b5247d506e74b8a935057dc190ba52091702ac25ed3a40
0x9a9024edb5069d88a324facb310a5ce8e495214bbaa968f077bede437390194f
0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root: 0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8
Chained: 0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a
Published: On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae

How to check it · This row as JSON