addrbookFor publishers
← The evidence ledger

Evidence row 120729

Observed , by baseline/1.

Kind
listing
About
source_record x402_bazaar:https://saylorinnovations.com/api/transit/berlin/arrivals
Recorded
Previous row
None: the first of its kind about this subject
Body SHA-256
919ea7e20153a90b420a197a671e51a5d2445807f32f897ed731ea9a0a07d9fb
Leaf
0xc5e9a2a74d2b7aee3a7f49bcb96b455bf628b175654dc17bf14419e35cc4dc6e

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://saylorinnovations.com/api/transit/berlin/arrivals"
    ]
  ],
  "name": "Saylor Innovations Transit",
  "owner_address": "0xa2a8df0f7caabea4e120a2568118f141569fc8aa",
  "raw": {
    "accepts": [
      {
        "amount": "10000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "assetTransferMethod": "eip3009",
          "facilitatorOnly": true,
          "memo": "saylor:transit:berlin-arrivals",
          "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:transit:berlin-arrivals",
          "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:transit:berlin-arrivals",
          "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:transit:berlin-arrivals",
          "reference": "Hb9F1rzfsVJJDa7vvuAfQeCAdCrLFKxLeKVpFtHvGAT9",
          "session": "eyJhcnRpY2xlSWQiOiJ0cmFuc2l0OmJlcmxpbi1hcnJpdmFscyIsInJlZmVyZW5jZSI6IkhiOUYxcnpmc1ZKSkRhN3Z2dUFmUWVDQWRDckxGS3hMZUtWcEZ0SHZHQVQ5IiwicmVjaXBpZW50IjoiN0xTamZySmY4Zk5zQjhWQTl1N04zV0VuMjVzbVFMcG9iM1N2eVV2WGFjeTciLCJtaW50IjoiRVBqRldkZDVBdWZxU1NxZU0ycU4xeHp5YmFwQzhHNHdFR0drWnd5VER0MXYiLCJtaW5BbW91bnQiOjEwMDAwLCJleHAiOjE3OTI0MDAzMzEzMjJ9.zxYxlyQEP4tXP73kDzc3-xoGb8GkMFEEMbds6quveKU"
        },
        "maxTimeoutSeconds": 120,
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
        "scheme": "exact"
      },
      {
        "amount": "10000",
        "asset": "Es9vMFrzaCERmJfrF4H2FYD4KCoNkY11McCe8BenwNYB",
        "extra": {
          "feePayer": "Hc3sdEAsCGQcpgfivywog9uwtk8gUBUZgsxdME1EJy88",
          "memo": "saylor:transit:berlin-arrivals",
          "reference": "9AdazCtmF14XtoHkybho6EnW91XgPWdWrSL6fittZnRm",
          "session": "eyJhcnRpY2xlSWQiOiJ0cmFuc2l0OmJlcmxpbi1hcnJpdmFscyIsInJlZmVyZW5jZSI6IjlBZGF6Q3RtRjE0WHRvSGt5YmhvNkVuVzkxWGdQV2RXclNMNmZpdHRablJtIiwicmVjaXBpZW50IjoiN0xTamZySmY4Zk5zQjhWQTl1N04zV0VuMjVzbVFMcG9iM1N2eVV2WGFjeTciLCJtaW50IjoiRXM5dk1GcnphQ0VSbUpmckY0SDJGWUQ0S0NvTmtZMTFNY0NlOEJlbndOWUIiLCJtaW5BbW91bnQiOjEwMDAwLCJleHAiOjE3OTI0MDAzMzEzMjJ9.TPaVVAjhPXlUj761z0e7KWH6GA1VIdyWlRXSJuwt--I"
        },
        "maxTimeoutSeconds": 120,
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
        "scheme": "exact"
      },
      {
        "amount": "91863",
        "asset": "So11111111111111111111111111111111111111112",
        "extra": {
          "memo": "saylor:transit:berlin-arrivals",
          "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": "94705",
          "reference": "7spbQr9fhxkAUKryJEFZMw4jcDfS7c4zDKNCKu6TbZgp",
          "session": "eyJhcnRpY2xlSWQiOiJ0cmFuc2l0OmJlcmxpbi1hcnJpdmFscyIsInJlZmVyZW5jZSI6IjdzcGJRcjlmaHhrQVVLcnlKRUZaTXc0amNEZlM3YzR6REtOQ0t1NlRiWmdwIiwicmVjaXBpZW50IjoiN0xTamZySmY4Zk5zQjhWQTl1N04zV0VuMjVzbVFMcG9iM1N2eVV2WGFjeTciLCJtaW50IjpudWxsLCJtaW5BbW91bnQiOjkxODYzLCJleHAiOjE3OTI0MDAzMzEzMjJ9.ZR3fScnaG2rP2BXgMx52g2tmQjrn5l3Zy1lQe5jdFQc",
          "solUsdPrice": 105.59
        },
        "maxTimeoutSeconds": 120,
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
        "scheme": "exact"
      }
    ],
    "description": "Berlin (VBB) Real-Time Departures (U-Bahn, S-Bahn, tram, bus) — Transportation",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "queryParams": {
              "stop": "Alexanderplatz"
            },
            "type": "http"
          },
          "output": {
            "example": {
              "arrivals": [
                {
                  "delay_min": 0,
                  "direction": "Strausberg Nord",
                  "line": "S5",
                  "planned_time": "2026-09-29T23:14:00+02:00",
                  "product": "suburban"
                }
              ],
              "count": 1,
              "found": true,
              "stop": "S+U Alexanderplatz Bhf (Berlin)"
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "method": {
                  "enum": [
                    "GET"
                  ],
                  "type": "string"
                },
                "queryParams": {
                  "properties": {
                    "stop": {
                      "description": "station or stop name, e.g. Alexanderplatz, Hauptbahnhof (query)",
                      "type": "string"
                    }
                  },
                  "required": [
                    "stop"
                  ],
                  "type": "object"
                },
                "type": {
                  "const": "http",
                  "type": "string"
                }
              },
              "required": [
                "type",
                "method"
              ],
              "type": "object"
            },
            "output": {
              "properties": {
                "example": {
                  "properties": {
                    "arrivals": {
                      "description": "Upcoming arrivals",
                      "items": {
                        "type": "object"
                      },
                      "type": "array"
                    },
                    "count": {
                      "description": "Number of items returned",
                      "type": [
                        "number",
                        "null"
                      ]
                    },
                    "found": {
                      "description": "True when the lookup matched a record",
                      "type": "boolean"
                    },
                    "stop": {
                      "description": "Stop the data is for",
                      "type": [
                        "string",
                        "null"
                      ]
                    }
                  },
                  "required": [
                    "found"
                  ],
                  "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": "2026-10-19T08:56:51.37Z",
    "quality": {
      "l30DaysTotalCalls": 2,
      "l30DaysUniquePayers": 2,
      "lastCalledAt": "2026-10-19T08:56:51.166Z"
    },
    "resource": "https://saylorinnovations.com/api/transit/berlin/arrivals",
    "serviceName": "Saylor Innovations Transit",
    "tags": [
      "transit",
      "public-transport",
      "berlin",
      "arrivals",
      "real-time"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Berlin (VBB) Real-Time Departures (U-Bahn, S-Bahn, tram, bus) — Transportation"
}

What the leaf hashes

{"body":"919ea7e20153a90b420a197a671e51a5d2445807f32f897ed731ea9a0a07d9fb","id":120729,"kind":"listing","method":"baseline/1","observed_us":1793025618534768,"prev":null,"subject":"x402_bazaar:https://saylorinnovations.com/api/transit/berlin/arrivals","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. 0xc5e9874157fc6f1ba82befff78f59d869d22f512bc0ae90ac0d4a46ab64660db
  2. 0x31aa0e22e1d4da22afa75cf94500701f58db647dda8c60c7b40de8d09156ca73
  3. 0xae3f394ea3d27716823c4b0fc180c56889fbb014360bf3af45f4fe7bbdc65228
  4. 0x3b1ece9f4ab4561086011cd2ae25cd92555d900c9d1e6b822e05a8ee1c234204
  5. 0x1c5e7cb3758ed311ad32a697228541198e9fa70c3dcc14aee05f66b193bd54d9
  6. 0xf1a1aa47cbc940588ad567f7a8ae30f27047e93b60fa2811aa86e3fe91481373
  7. 0x00202bb3d7d1ab3de1871a631eb05c752303b3b13812c974eadac95cce37f1f0
  8. 0x30721acbe322c75d4ce2927644b58489c3027d36792692da6cb56c322958d680
  9. 0xbca5b2718549f1149bad8567f3fc1eeb3cf3851551a251b711ea91d2f549275b
  10. 0x4a766015a1173570ffc438320afd677a41ae92be39f86b768798615ce79c79a4
  11. 0xd2a07d39f43cc6c0a549d9e0f8d8244992bef3f66efa78aea10852590e0fc7dd
  12. 0x4d1a020de7fc0aa076daeb62ebb904d51ac6c607b605eb63a7855f34d7b69f1b
  13. 0x641fba1f23ec69d96721e34ace1926954d835b9614cb5eae215a069c056399b8
  14. 0xdbe2e8dd65ea1248b2936612538f18268abd5cf27ebdab3737694571ad496004
  15. 0x9f68b5e15459cb62b8c0cd4c124fa61c74147b4a5755a200fbecd21a581635d1
  16. 0x123ec8bee20ddc55223eeef5a4f4d6c4b6416515adbb911c56759f5cde56e452
  17. 0xd0651cb9bc8155eb52b5247d506e74b8a935057dc190ba52091702ac25ed3a40
  18. 0x9a9024edb5069d88a324facb310a5ce8e495214bbaa968f077bede437390194f
  19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a
Day root
0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8
Chained
0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a
Published
On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae

How to check it · This row as JSON