Evidence row 117493

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://nostr.halowerk.com/event-sign"
    ]
  ],
  "name": "nostr.halowerk.com/event-sign",
  "owner_address": "0x2880edfff13100677bf97a3cbdf3bc34771c4e5e",
  "raw": {
    "accepts": [
      {
        "amount": "1000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "currency": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "asset": "USDC",
          "assetTransferMethod": "eip3009",
          "eip712Domain": {
            "chainId": 8453,
            "name": "USD Coin",
            "verifyingContract": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
            "version": "2"
          },
          "name": "USD Coin",
          "network_name": "Base Mainnet",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:8453",
        "payTo": "0x2880EdfFF13100677Bf97A3CBdF3Bc34771C4E5E",
        "recipient": "0x2880EdfFF13100677Bf97A3CBdF3Bc34771C4E5E",
        "scheme": "exact"
      }
    ],
    "description": "Three modes over the same event structure. In preimage mode the caller supplies a public key and the event fields; the answer holds the exact NIP-01 serialisation, the SHA-256 event id derived from it and the 32 bytes to sign, so the caller signs locally and no secret key ever crosses the connection.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "content": "hello nostr",
              "kind": 1,
              "mode": "preimage",
              "pubkey": "3bf0c63fcb93463407af97a5e5ee64fa883d107ef9e558472c4eb9aaaefa459d",
              "tags": [
                [
                  "t",
                  "bitcoin"
                ]
              ]
            },
            "bodyType": "json",
            "method": "POST",
            "type": "http"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "body": {
                  "additionalProperties": false,
                  "properties": {
                    "content": {
                      "default": "",
                      "description": "Event content.",
                      "maxLength": 64000,
                      "type": "string"
                    },
                    "created_at": {
                      "description": "Unix seconds. Left out, the current time is used.",
                      "minimum": 0,
                      "type": "integer"
                    },
                    "event": {
                      "description": "The complete event to check. Only used in verify mode.",
                      "type": "object"
                    },
                    "kind": {
                      "default": 1,
                      "description": "NIP-01 event kind. 1 is a text note, 30023 a long-form article.",
                      "maximum": 65535,
                      "minimum": 0,
                      "type": "integer"
                    },
                    "mode": {
                      "default": "preimage",
                      "description": "preimage: caller signs locally. ephemeral: single-use key generated here. verify: check a complete event.",
                      "enum": [
                        "preimage",
                        "ephemeral",
                        "verify"
                      ],
                      "type": "string"
                    },
                    "pubkey": {
                      "description": "Public key as hex or npub. Required in preimage mode, ignored otherwise.",
                      "type": "string"
                    },
                    "tags": {
                      "description": "NIP-01 tags, each an array of strings, for example [\"t\",\"bitcoin\"].",
                      "items": {
                        "items": {
                          "type": "string"
                        },
                        "type": "array"
                      },
                      "maxItems": 200,
                      "type": "array"
                    }
                  },
                  "type": "object"
                },
                "bodyType": {
                  "enum": [
                    "json",
                    "form-data",
                    "text"
                  ],
                  "type": "string"
                },
                "method": {
                  "enum": [
                    "POST",
                    "PUT",
                    "PATCH"
                  ],
                  "type": "string"
                },
                "type": {
                  "const": "http",
                  "type": "string"
                }
              },
              "required": [
                "type",
                "method",
                "bodyType",
                "body"
              ],
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      }
    },
    "lastUpdated": "2026-10-14T19:54:54.302Z",
    "quality": {
      "l30DaysTotalCalls": 2,
      "l30DaysUniquePayers": 2,
      "lastCalledAt": "2026-10-14T19:54:53.871Z"
    },
    "resource": "https://nostr.halowerk.com/event-sign",
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Three modes over the same event structure. In preimage mode the caller supplies a public key and the event fields; the answer holds the exact NIP-01 serialisation, the SHA-256 event id derived from it and the 32 bytes to sign, so the caller signs locally and no secret key ever crosses the connection."
}

What the leaf hashes

{"body":"a98ebf37598c892a05c47fbf132512ca5a3657afc5a80851744e411afe39e644","id":117493,"kind":"listing","method":"baseline/1","observed_us":1793025611277185,"prev":null,"subject":"x402_bazaar:https://nostr.halowerk.com/event-sign","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. 0xd8daaf9142886b5fcc53494a04be07cd3cf12210a9879c2582c0c37e3e8829eb
2. 0xe2e750e43eb6e84e45fdd71d9868658058a723b48a2ee5d6cd4e9c4f0aee9f75
3. 0xdf3e1de174918c280b689d5ecacca7f23dd60c01fde0a8a6e5589c49ccfa568c
4. 0x5bd4617a53dbbb0a425bed3f7d53cbdd44637af5ee289f5f4834aae990498b7c
5. 0x96da5d385a8838ca5838292da2a0e2c7fcc5862a872fb09124850b74048b5533
6. 0xe73bb5ea50edfe8ced90d5aa2b679e862a9ec7c16b6af2b69697177fbefea9b4
7. 0x744d7d8c42fd8cbfe9e1b0f7c3094d0030ccfa57037517f5b81f4e5f93c065b4
8. 0x42976d0f83692971c331cc58fe03660741ec11b5c5e957af0ffcbe7048ecb6c7
9. 0xb70320c30c9047039b9ad7306e3a8f258e2cc47dace4e2c691ca04dbfe0d2131
10. 0xcced339e83616c17d79611bcc0e7ac8b05c10472b6ca8350f4c914df1195d992
11. 0xd96796540b8f5b592d8f03fc775e7a26bd00af394ce468ff886a43215a522475
12. 0x07e91966e8a0c43a0725bd3d523259064a93333c2900e6171b69ffbfd9f423f1
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