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Evidence row 120734

Observed , by baseline/1.

Kind
listing
About
source_record x402_bazaar:https://saylorinnovations.com/api/transit/london/tube-status
Recorded
Previous row
None: the first of its kind about this subject
Body SHA-256
7cdbb84f37d76d19e61a71407e030e499810ca083062322c9087af7623ad8d66
Leaf
0x70dde65f575146414f600e7ad19d3e765b452edd93f06b11eeab0b3f747ff75b

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://saylorinnovations.com/api/transit/london/tube-status"
    ]
  ],
  "name": "Saylor Innovations Data Desk",
  "owner_address": "0xa2a8df0f7caabea4e120a2568118f141569fc8aa",
  "raw": {
    "accepts": [
      {
        "amount": "10000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "assetTransferMethod": "eip3009",
          "facilitatorOnly": true,
          "memo": "saylor:datadesk:london-tube-stat",
          "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:datadesk:london-tube-stat",
          "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:datadesk:london-tube-stat",
          "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": "GVJJ7rdGiXr5xaYbRwRbjfaJL7fmwRygFi1H6aGqDveb",
          "memo": "saylor:datadesk:london-tube-stat",
          "reference": "6F3wbifULq5rxyNUcnbd44CrGrbpY3HMDXakUhaFPCKZ",
          "session": "eyJhcnRpY2xlSWQiOiJkYXRhZGVzazpsb25kb24tdHViZS1zdGF0dXMiLCJyZWZlcmVuY2UiOiI2RjN3YmlmVUxxNXJ4eU5VY25iZDQ0Q3JHcmJwWTNITURYYWtVaGFGUENLWiIsInJlY2lwaWVudCI6IjdMU2pmckpmOGZOc0I4VkE5dTdOM1dFbjI1c21RTHBvYjNTdnlVdlhhY3k3IiwibWludCI6IkVQakZXZGQ1QXVmcVNTcWVNMnFOMXh6eWJhcEM4RzR3RUdHa1p3eVREdDF2IiwibWluQW1vdW50IjoxMDAwMCwiZXhwIjoxNzkyODE2OTE5MjcwfQ.CDTqGkLCZwu3UeKQVoAwO4o0H_J5Mcf6Y-v5Cq_jeV4"
        },
        "maxTimeoutSeconds": 120,
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
        "scheme": "exact"
      },
      {
        "amount": "10000",
        "asset": "Es9vMFrzaCERmJfrF4H2FYD4KCoNkY11McCe8BenwNYB",
        "extra": {
          "feePayer": "GVJJ7rdGiXr5xaYbRwRbjfaJL7fmwRygFi1H6aGqDveb",
          "memo": "saylor:datadesk:london-tube-stat",
          "reference": "83WSUEG5bNY91ncAtdG9divAenKXmqsCa9XCABA16U5D",
          "session": "eyJhcnRpY2xlSWQiOiJkYXRhZGVzazpsb25kb24tdHViZS1zdGF0dXMiLCJyZWZlcmVuY2UiOiI4M1dTVUVHNWJOWTkxbmNBdGRHOWRpdkFlbktYbXFzQ2E5WENBQkExNlU1RCIsInJlY2lwaWVudCI6IjdMU2pmckpmOGZOc0I4VkE5dTdOM1dFbjI1c21RTHBvYjNTdnlVdlhhY3k3IiwibWludCI6IkVzOXZNRnJ6YUNFUm1KZnJGNEgyRllENEtDb05rWTExTWNDZThCZW53TllCIiwibWluQW1vdW50IjoxMDAwMCwiZXhwIjoxNzkyODE2OTE5MjcwfQ.QqkRCeDPV8ig1zlmvLw_vKdpLgY_O1MQZuKbsGHX0h0"
        },
        "maxTimeoutSeconds": 120,
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
        "scheme": "exact"
      },
      {
        "amount": "94532",
        "asset": "So11111111111111111111111111111111111111112",
        "extra": {
          "memo": "saylor:datadesk:london-tube-stat",
          "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": "97456",
          "reference": "4EyAx4ggXtfmYpMKjVUUDKFk56mTuFiikNmtfxtanNCg",
          "session": "eyJhcnRpY2xlSWQiOiJkYXRhZGVzazpsb25kb24tdHViZS1zdGF0dXMiLCJyZWZlcmVuY2UiOiI0RXlBeDRnZ1h0Zm1ZcE1LalZVVURLRms1Nm1UdUZpaWtObXRmeHRhbk5DZyIsInJlY2lwaWVudCI6IjdMU2pmckpmOGZOc0I4VkE5dTdOM1dFbjI1c21RTHBvYjNTdnlVdlhhY3k3IiwibWludCI6bnVsbCwibWluQW1vdW50Ijo5NDUzMiwiZXhwIjoxNzkyODE2OTE5MjcwfQ.BuNoJ6B6SnUuT7EI7WpoT6N4MRVd3JPneSuqZiXc83U",
          "solUsdPrice": 102.61
        },
        "maxTimeoutSeconds": 120,
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
        "scheme": "exact"
      }
    ],
    "description": "London Underground, DLR, Overground, Elizabeth line and tram status from TfL - good service or delays per line with disruption reasons right now",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "type": "http"
          },
          "output": {
            "example": {
              "checked": "2026-10-16T03:44:55.094Z",
              "lines": [
                {
                  "line": "Bakerloo",
                  "reason": null,
                  "severity_code": 10,
                  "status": "Good Service"
                },
                {
                  "line": "Central",
                  "reason": null,
                  "severity_code": 10,
                  "status": "Good Service"
                },
                {
                  "line": "Circle",
                  "reason": null,
                  "severity_code": 10,
                  "status": "Good Service"
                },
                {
                  "line": "District",
                  "reason": null,
                  "severity_code": 10,
                  "status": "Good Service"
                },
                {
                  "line": "Hammersmith & City",
                  "reason": null,
                  "severity_code": 10,
                  "status": "Good Service"
                },
                {
                  "line": "Jubilee",
                  "reason": null,
                  "severity_code": 10,
                  "status": "Good Service"
                },
                {
                  "line": "Metropolitan",
                  "reason": null,
                  "severity_code": 10,
                  "status": "Good Service"
                },
                {
                  "line": "Northern",
                  "reason": null,
                  "severity_code": 10,
                  "status": "Good Service"
                },
                {
                  "line": "Piccadilly",
                  "reason": null,
                  "severity_code": 10,
                  "status": "Good Service"
                },
                {
                  "line": "Victoria",
                  "reason": null,
                  "severity_code": 10,
                  "status": "Good Service"
                },
                {
                  "line": "Waterloo & City",
                  "reason": "Waterloo and City Line: Service will resume at 06:00.",
                  "severity_code": 20,
                  "status": "Service Closed"
                }
              ],
              "lines_total": 11,
              "lines_with_disruption": 1,
              "mode": "tube",
              "note": "Severity code 10 means Good Service.",
              "source": "Transport for London Unified API (Open Government Licence v3)"
            },
            "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": {
                    "checked": {
                      "description": "Locations that were checked",
                      "type": "string"
                    },
                    "lines": {
                      "description": "Transit lines",
                      "type": "array"
                    },
                    "lines_total": {
                      "description": "Lines total",
                      "type": "number"
                    },
                    "lines_with_disruption": {
                      "description": "Lines with disruption",
                      "type": "number"
                    },
                    "mode": {
                      "description": "Mode used",
                      "type": "string"
                    },
                    "note": {
                      "description": "Caveat or context for reading the result",
                      "type": "string"
                    },
                    "source": {
                      "description": "Data source the values come from",
                      "type": "string"
                    }
                  },
                  "required": [
                    "mode",
                    "lines"
                  ],
                  "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": "2026-10-24T04:39:59.31Z",
    "quality": {
      "l30DaysTotalCalls": 4,
      "l30DaysUniquePayers": 3,
      "lastCalledAt": "2026-10-24T04:39:58.841Z"
    },
    "resource": "https://saylorinnovations.com/api/transit/london/tube-status",
    "serviceName": "Saylor Innovations Data Desk",
    "tags": [
      "london tube status",
      "tfl line disruptions",
      "is the central line running",
      "underground delays now",
      "london transport service status"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "London Underground, DLR, Overground, Elizabeth line and tram status from TfL - good service or delays per line with disruption reasons right now"
}

What the leaf hashes

{"body":"7cdbb84f37d76d19e61a71407e030e499810ca083062322c9087af7623ad8d66","id":120734,"kind":"listing","method":"baseline/1","observed_us":1793025618541141,"prev":null,"subject":"x402_bazaar:https://saylorinnovations.com/api/transit/london/tube-status","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. 0x70ddf1504928486ff86a9eaebf040793e24f3246af89cef43f87129b4ce8e50a
  2. 0x9e2b21eedd64c7eb3b47504c4643a43901f8c3aff6f73f56e3c16616cb750afd
  3. 0x9c2b513201cf445279d8fa728139321f7491c5bcb446def0020178aae26729ec
  4. 0x67b4928424add1cd4b8da974bb0ee7edd62b9196cc7c63d9705a2de97c8bb982
  5. 0x97c43afaf62694abca204002ce31a18adb92fb5a355b13635c5d7a5b01234ebf
  6. 0x15639f4a33fc345105521a7956689b5d141d57c2a0a027001caf1578415b704f
  7. 0x7a82f8e402b8f9098b434aefe264f5989824b116abd40b8600eba35eae23ef7f
  8. 0x699dd5cdc5da242a74d34a368b6fa4c2ffce2948dc8b8896bb6b47098a3386ac
  9. 0xf9a6818a3f2ac2642dca7c4363f32a10513cbe382420d3c68da9b76bcc10d716
  10. 0x6fae3679fc5921d366ae94575352c3191431b9e169642b59711be337f82a5294
  11. 0x85ea4bbb5113622e4aa66d1805aad88594922ba95c70691ba980547dd9edd2b2
  12. 0x5be1d69fd9353c3a75685caffea8c98e8f079f5072011c82517cc5f365ba32f8
  13. 0x14b83e3bc6587240f31cd033d09d131e0775b7b00aada9042597008a70399013
  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