Evidence row 1791924

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://saylorinnovations.com/api/kb/solana-rpc-websocket"
    ]
  ],
  "name": "Saylor Innovations Guide Library",
  "owner_address": "0xa2a8df0f7caabea4e120a2568118f141569fc8aa",
  "raw": {
    "accepts": [
      {
        "amount": "10000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "assetTransferMethod": "eip3009",
          "facilitatorOnly": true,
          "memo": "saylor:solana-rpc-websocket",
          "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:solana-rpc-websocket",
          "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:solana-rpc-websocket",
          "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:solana-rpc-websocket",
          "reference": "26BWUMs2zSjY6HsqXjW5HrjifXAwj2hwqtugqjLZYwyD",
          "session": "eyJhcnRpY2xlSWQiOiJzb2xhbmEtcnBjLXdlYnNvY2tldCIsInJlZmVyZW5jZSI6IjI2QldVTXMyelNqWTZIc3FYalc1SHJqaWZYQXdqMmh3cXR1Z3FqTFpZd3lEIiwicmVjaXBpZW50IjoiN0xTamZySmY4Zk5zQjhWQTl1N04zV0VuMjVzbVFMcG9iM1N2eVV2WGFjeTciLCJtaW50IjoiRVBqRldkZDVBdWZxU1NxZU0ycU4xeHp5YmFwQzhHNHdFR0drWnd5VER0MXYiLCJtaW5BbW91bnQiOjEwMDAwLCJleHAiOjE3OTI0MzM2NzA5NzR9.geuBDEkV74wr5qGSoTtzVF86_n8GDhRrFeMzC2LxK70"
        },
        "maxTimeoutSeconds": 120,
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
        "scheme": "exact"
      },
      {
        "amount": "10000",
        "asset": "Es9vMFrzaCERmJfrF4H2FYD4KCoNkY11McCe8BenwNYB",
        "extra": {
          "feePayer": "Hc3sdEAsCGQcpgfivywog9uwtk8gUBUZgsxdME1EJy88",
          "memo": "saylor:solana-rpc-websocket",
          "reference": "HNzgYf4vASGbkFfV6nTBAeJH66Wn4K9yfKdXiALoGuiU",
          "session": "eyJhcnRpY2xlSWQiOiJzb2xhbmEtcnBjLXdlYnNvY2tldCIsInJlZmVyZW5jZSI6IkhOemdZZjR2QVNHYmtGZlY2blRCQWVKSDY2V240Szl5ZktkWGlBTG9HdWlVIiwicmVjaXBpZW50IjoiN0xTamZySmY4Zk5zQjhWQTl1N04zV0VuMjVzbVFMcG9iM1N2eVV2WGFjeTciLCJtaW50IjoiRXM5dk1GcnphQ0VSbUpmckY0SDJGWUQ0S0NvTmtZMTFNY0NlOEJlbndOWUIiLCJtaW5BbW91bnQiOjEwMDAwLCJleHAiOjE3OTI0MzM2NzA5NzR9.nokPRzME2oZp80-dWAQuXkfEOPF4TJ-MnvCNGLa0BFk"
        },
        "maxTimeoutSeconds": 120,
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
        "scheme": "exact"
      },
      {
        "amount": "92982",
        "asset": "So11111111111111111111111111111111111111112",
        "extra": {
          "memo": "saylor:solana-rpc-websocket",
          "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": "95858",
          "reference": "CjwVrcYyVQJBPMSdzqrUR8oPq1m373ieiZo6T5FKkyYU",
          "session": "eyJhcnRpY2xlSWQiOiJzb2xhbmEtcnBjLXdlYnNvY2tldCIsInJlZmVyZW5jZSI6IkNqd1ZyY1l5VlFKQlBNU2R6cXJVUjhvUHExbTM3M2llaVpvNlQ1RktreVlVIiwicmVjaXBpZW50IjoiN0xTamZySmY4Zk5zQjhWQTl1N04zV0VuMjVzbVFMcG9iM1N2eVV2WGFjeTciLCJtaW50IjpudWxsLCJtaW5BbW91bnQiOjkyOTgyLCJleHAiOjE3OTI0MzM2NzA5NzR9.E-5mgyHY3YUu98Cl5N9b1V2jeFhJCfqd8phLNE07niU",
          "solUsdPrice": 104.32
        },
        "maxTimeoutSeconds": 120,
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
        "scheme": "exact"
      }
    ],
    "description": "Resilient Solana RPC and WebSocket monitoring - commitments, checkpoints, reconnects and backfill",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "type": "http"
          },
          "output": {
            "example": {
              "body": "A procedure for building resilient Solana wallet/token/program monitoring: defining precise event and commitment semantics up front, persisting durable checkpoints (not memory-only cursors), reconnecting with bounded exponential backoff, backfilling missed history via signature/account RPC methods after every disconnect, deduplicating by a stable event key, correctly promoting or retracting provisional events as commitment increases, and failing over between providers without double-processing.",
              "c": "Solana",
              "id": "solana-rpc-websocket",
              "t": "Solana RPC and WebSocket Resilience Guide"
            },
            "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": "2026-10-19T18:12:31.028Z",
    "quality": {
      "l30DaysTotalCalls": 2,
      "l30DaysUniquePayers": 2,
      "lastCalledAt": "2026-10-19T18:12:30.672Z"
    },
    "resource": "https://saylorinnovations.com/api/kb/solana-rpc-websocket",
    "serviceName": "Saylor Innovations Guide Library",
    "tags": [
      "solana-rpc",
      "websocket",
      "monitoring",
      "reliability",
      "reconnect-backoff"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Resilient Solana RPC and WebSocket monitoring - commitments, checkpoints, reconnects and backfill"
}

What the leaf hashes

{"body":"10566ac307468758ba89556d95811bad0277bdbca781e058a80d184758526343","id":1791924,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793559996587851,"prev":120304,"subject":"x402_bazaar:https://saylorinnovations.com/api/kb/solana-rpc-websocket","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. 0xf7e528847ec9c3006bb4769fe0833a5ed672ed0bea4c59d4f76892885c4400c3
2. 0x5e617e7f29a8c2652d246c2faa73167b7df79fb6a15f430e464f536a4aeafae9
3. 0xf709c90c1de1ce6fa368c13ff992df92bbcb9e180759fecfe2d523bb0c61b762
4. 0xf3e97b10b77ac89c34474a899d3a1b1f9def188a0d3dea8b19f935db7df57932
5. 0xb0de955a947d6fb75986830034df40f9593fef25af1e238b587334f4c7c59fc4
6. 0x58d71914d111fc2addd5b633bb2d83bca7a8f6b0df4e222e0c1b78c87f2daec5
7. 0x770fbcd535fd9e693dd405c4b5119b82984478b9fc4f43958bd1582435077b2e
8. 0x4309120eebb256b66287fd56b95b904b99922db56378f2d30992c885348a9811
9. 0xec4e179f60570f88346d8e1e6d47ad845f05e1121e2747212b645df074599e90
10. 0xe74161a8eb7a8f2a30cb4a06747ed0d4258a02833088c2b92a9174c0e778df21
11. 0x5e7f7645e09612756de23d1f0be81a7a6a2ced54cffaa85aa5eb90e9f0e30695
12. 0xf8b312afb71abc1ae9fcd8b8858e0a4351bca64770e3521c0f4b8ea86a8933e4
13. 0x4ec6a6783b0fbf13d364df34dd919edbce7190c4f5424e6bc50d2f35967469a4
14. 0x9b4eda8f413d128915df51c98c771c8ee622b35a4252b9c2a803dd51ad66d4c8
15. 0x624db22ddd30d851957cc9d44cc5b314f300cfe0ff69cfbcfe0b2a2df8fdd12c
16. 0x1023fddec22f7cf1aff98422f0e5714dcc4ca7df3408bb6d4550d6f770e5033a
17. 0xf7af9137c03da92bdd37d086da37554097bcd1fce016f93f2e66d18b71970c5d

Day root

0x7fa2cba1cf3d6b35630896f5fe1a650adb307ea2c376e80a5f2d9276b7cb5ab3

Chained

0x577ff89ba012beeff3197bcff7fa86752074bdf54205a24359cc437be2a952a4

Published

On Arc Testnet, block 70262758: 0x435bc1b9331471d72e1998f2e420983b5189d4da65ffbd6f27ef40daf5e1ea90