Evidence row 120170

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://saylorinnovations.com/api/kb/linux-port-already-in-use-ss-lsof-eaddrinuse-errno-98-find-process"
    ]
  ],
  "name": "Saylor Innovations Guide Library",
  "owner_address": "0xa2a8df0f7caabea4e120a2568118f141569fc8aa",
  "raw": {
    "accepts": [
      {
        "amount": "10000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "assetTransferMethod": "eip3009",
          "facilitatorOnly": true,
          "memo": "saylor:linux-port-already-in-use",
          "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:linux-port-already-in-use",
          "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:linux-port-already-in-use",
          "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:linux-port-already-in-use",
          "reference": "AJ4hhXPTAnowLtqn23PgV3CA8q5ZrV3HfLLKKUdxJuqp",
          "session": "eyJhcnRpY2xlSWQiOiJsaW51eC1wb3J0LWFscmVhZHktaW4tdXNlLXNzLWxzb2YtZWFkZHJpbnVzZS1lcnJuby05OC1maW5kLXByb2Nlc3MiLCJyZWZlcmVuY2UiOiJBSjRoaFhQVEFub3dMdHFuMjNQZ1YzQ0E4cTVaclYzSGZMTEtLVWR4SnVxcCIsInJlY2lwaWVudCI6IjdMU2pmckpmOGZOc0I4VkE5dTdOM1dFbjI1c21RTHBvYjNTdnlVdlhhY3k3IiwibWludCI6IkVQakZXZGQ1QXVmcVNTcWVNMnFOMXh6eWJhcEM4RzR3RUdHa1p3eVREdDF2IiwibWluQW1vdW50IjoxMDAwMCwiZXhwIjoxNzkyODM1ODI3NjA1fQ.W0wG8oo78XfVB8TTMUbrv1Rtm5c4YnGZyy-rmBvdKX4"
        },
        "maxTimeoutSeconds": 120,
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
        "scheme": "exact"
      },
      {
        "amount": "10000",
        "asset": "Es9vMFrzaCERmJfrF4H2FYD4KCoNkY11McCe8BenwNYB",
        "extra": {
          "feePayer": "D6ZhtNQ5nT9ZnTHUbqXZsTx5MH2rPFiBBggX4hY1WePM",
          "memo": "saylor:linux-port-already-in-use",
          "reference": "GCCsxBeMkdfCpZMCESDqRfwmLGBi2SSBebg7rE8AjCFb",
          "session": "eyJhcnRpY2xlSWQiOiJsaW51eC1wb3J0LWFscmVhZHktaW4tdXNlLXNzLWxzb2YtZWFkZHJpbnVzZS1lcnJuby05OC1maW5kLXByb2Nlc3MiLCJyZWZlcmVuY2UiOiJHQ0NzeEJlTWtkZkNwWk1DRVNEcVJmd21MR0JpMlNTQmViZzdyRThBakNGYiIsInJlY2lwaWVudCI6IjdMU2pmckpmOGZOc0I4VkE5dTdOM1dFbjI1c21RTHBvYjNTdnlVdlhhY3k3IiwibWludCI6IkVzOXZNRnJ6YUNFUm1KZnJGNEgyRllENEtDb05rWTExTWNDZThCZW53TllCIiwibWluQW1vdW50IjoxMDAwMCwiZXhwIjoxNzkyODM1ODI3NjA1fQ.ThBT49odl8szBWZW1Vnw0UnUY_S_u29OLv4GpIAANMw"
        },
        "maxTimeoutSeconds": 120,
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
        "scheme": "exact"
      },
      {
        "amount": "95792",
        "asset": "So11111111111111111111111111111111111111112",
        "extra": {
          "memo": "saylor:linux-port-already-in-use",
          "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": "98755",
          "reference": "C4mJ8owBW1eSFWm66t5RnMj7nguZkEqq7dJ4qgqJaWPk",
          "session": "eyJhcnRpY2xlSWQiOiJsaW51eC1wb3J0LWFscmVhZHktaW4tdXNlLXNzLWxzb2YtZWFkZHJpbnVzZS1lcnJuby05OC1maW5kLXByb2Nlc3MiLCJyZWZlcmVuY2UiOiJDNG1KOG93QlcxZVNGV202NnQ1Um5NajduZ3Vaa0VxcTdkSjRxZ3FKYVdQayIsInJlY2lwaWVudCI6IjdMU2pmckpmOGZOc0I4VkE5dTdOM1dFbjI1c21RTHBvYjNTdnlVdlhhY3k3IiwibWludCI6bnVsbCwibWluQW1vdW50Ijo5NTc5MiwiZXhwIjoxNzkyODM1ODI3NjA1fQ.v7onotRM46BcBVmFnRxTKaroaid2taXQYnIjMODBe3E",
          "solUsdPrice": 101.26
        },
        "maxTimeoutSeconds": 120,
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
        "scheme": "exact"
      }
    ],
    "description": "Fix address already in use errno 98 - find the owner with ss -ltnp or lsof, kill safely, TIME_WAIT and SO_REUSEADDR, bind port 0 in tests",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "type": "http"
          },
          "output": {
            "example": {
              "body": "Reproduced in Python on Linux: bind to 127.0.0.1 with port 0, ss -ltn showing the listener, a second bind failing with errno 98 Address already in use, and commands for ss, lsof and fuser.",
              "c": "Self-Hosting & Infra",
              "id": "linux-port-already-in-use-ss-lsof-eaddrinuse-errno-98-find-process",
              "t": "Port Already in Use: Find the Listener with ss and lsof, Read errno 98 and Choose a Free Port"
            },
            "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/v1791811517/bazaar-icons/bc5e2b3d111ebbef.jpg",
    "lastUpdated": "2026-10-24T09:55:07.647Z",
    "quality": {
      "l30DaysTotalCalls": 2,
      "l30DaysUniquePayers": 2,
      "lastCalledAt": "2026-10-24T09:55:07.2Z"
    },
    "resource": "https://saylorinnovations.com/api/kb/linux-port-already-in-use-ss-lsof-eaddrinuse-errno-98-find-process",
    "serviceName": "Saylor Innovations Guide Library",
    "tags": [
      "linux",
      "networking",
      "ports",
      "ss",
      "troubleshooting"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Fix address already in use errno 98 - find the owner with ss -ltnp or lsof, kill safely, TIME_WAIT and SO_REUSEADDR, bind port 0 in tests"
}

What the leaf hashes

{"body":"1be5593c4827c0184f01245d0229084f4fcddcedc83eb916aecfa1423959bbc9","id":120170,"kind":"listing","method":"baseline/1","observed_us":1793025617446767,"prev":null,"subject":"x402_bazaar:https://saylorinnovations.com/api/kb/linux-port-already-in-use-ss-lsof-eaddrinuse-errno-98-find-process","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. 0xdafcb6d76803a3f69160d27630f70fac8edcd4921dc6f6673e3a2e9a9bdca5d5
2. 0x853d8639bf6dbcb87f45e41d089ef8f3fb15d10b8adc7a8aef7fe1b2b3075c55
3. 0xa9771a0763fe6af6831713450395538385f51388655962754aaeb60b54a923f7
4. 0xd589221413436be9d036d06e30549725773fb6e4815462c487fa4ec5776df416
5. 0xd725f3a91f8a4993dd0daa924b180b6564fa73d826e159ce9ab5591e415af54c
6. 0xe8a5fa58362d226ed6a6b73779a983ee6b35227d782078d9ab6a9f85e51080f5
7. 0xb19dd21258afb9d656efd048a659748a9de27884df899f82083af5c872809c1a
8. 0xfda4f6ae56f41c1c16fd9515e491121530e0adcd1d21dac406d0c70c3e65136b
9. 0x9f70b1e6c89aa9e42b61a3d96ea3e4c30f5d3caedeaa9f9a442cc49cfb5aa419
10. 0xf0fa8825f03ea7c30bd9031bd1bd80f189c5f26b11bf0823da9afc4bf22d0332
11. 0x29700235b227055ce880d43e14eac146f6698beb898c5815b2dace9d29cb0d8c
12. 0x3704bc5ad033a79977899a5ead894cf50c0b8c8432c020959cefe2af561eb5ee
13. 0xcd9e3af1fa905ec61b99ee9442716d7c7a439aecacd018ec229a24def1cabf6b
14. 0x6b927d53caa5125cdba9255612d524976c691f8672796c3f0885ba2c5b3af1ad
15. 0x6dc40f983a3840a0ad927a9ca17f4ff1e3b649a6c735e2a09b140db7c2caf13b
16. 0x703f95866af09c5e5d6ead7411e9a10f964a41a2aff64d4a55ff0053c023a023
17. 0xd0651cb9bc8155eb52b5247d506e74b8a935057dc190ba52091702ac25ed3a40
18. 0x9a9024edb5069d88a324facb310a5ce8e495214bbaa968f077bede437390194f
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae