Evidence row 2252159

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://audio.halowerk.com/speech-duration"
    ]
  ],
  "name": "audio.halowerk.com/speech-duration",
  "owner_address": "0x2880edfff13100677bf97a3cbdf3bc34771c4e5e",
  "raw": {
    "accepts": [
      {
        "amount": "2000",
        "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": "Counts syllables rather than words, because word length differs between languages far more than syllable duration does — a German compound and its four-word English equivalent take about the same time to say and would give wildly different word counts.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "text": "Beispieltext."
            },
            "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": {
                    "comma_pause_ms": {
                      "default": 200,
                      "description": "Pause added at a comma, semicolon, colon or dash.",
                      "maximum": 1500,
                      "minimum": 0,
                      "type": "integer"
                    },
                    "delivery": {
                      "default": "narration",
                      "description": "Delivery style. Each carries its own syllables per second.",
                      "enum": [
                        "slow",
                        "narration",
                        "conversational",
                        "brisk",
                        "custom"
                      ],
                      "type": "string"
                    },
                    "language": {
                      "default": "en",
                      "description": "Language of the text. Decides which syllable rules apply.",
                      "enum": [
                        "de",
                        "en",
                        "fr",
                        "es",
                        "it",
                        "nl",
                        "pt"
                      ],
                      "type": "string"
                    },
                    "paragraph_pause_ms": {
                      "default": 900,
                      "description": "Pause added at a blank line.",
                      "maximum": 5000,
                      "minimum": 0,
                      "type": "integer"
                    },
                    "sentence_pause_ms": {
                      "default": 600,
                      "description": "Pause added at a full stop, question mark or exclamation mark.",
                      "maximum": 3000,
                      "minimum": 0,
                      "type": "integer"
                    },
                    "syllables_per_second": {
                      "description": "Own rate, only with delivery=custom.",
                      "maximum": 12,
                      "minimum": 1,
                      "type": "number"
                    },
                    "text": {
                      "description": "The text to be spoken.",
                      "maxLength": 40000,
                      "minLength": 1,
                      "type": "string"
                    }
                  },
                  "required": [
                    "text"
                  ],
                  "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": "2026-11-02T14:50:55.228Z",
    "quality": {
      "l30DaysTotalCalls": 1,
      "l30DaysUniquePayers": 1,
      "lastCalledAt": "2026-11-02T14:50:54.807Z"
    },
    "resource": "https://audio.halowerk.com/speech-duration",
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Counts syllables rather than words, because word length differs between languages far more than syllable duration does — a German compound and its four-word English equivalent take about the same time to say and would give wildly different word counts."
}

What the leaf hashes

{"body":"b51601faf143db0bd8fde217c2000857a32cdc4e4544459e8833060c596329f7","id":2252159,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793647832146600,"prev":null,"subject":"x402_bazaar:https://audio.halowerk.com/speech-duration","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-11-02 (444186 rows).

1. 0x5fa2606b64c970bf78207170a06a5d5be486bd49fa4d6ef261d2ee8a014dad7c
2. 0x05522621cfa4c46e53fb4ed04d0e9c0c184556240ebbeefc727691a3aebb6a4c
3. 0x80d4b6a61dbe8ea1811daee8b2329433feef8e1b83964078104dffc3b96b4d60
4. 0xe35ec6d09be91815b1898128d1b7bedb61821b5cdd23757fad5b3fb13b60a13f
5. 0x3e2b95c966cafcf09aedbf4d92a662b7cd659823c0b56ebb3166714655b67e7e
6. 0x5fe0acd0beace34117719baca6dd889d845f52f61f58c31a5080a19f668cecd7
7. 0xf6b0de25075b26761c1179644c10811ed9e8054fb565e996adfb2fc9fa8383b4
8. 0x9afa848840b11d5e2fdc6a70df87a2dca26d3efc8abde6080af59660a8e2049c
9. 0x579824318a2f504acff01d4084dbb07aab23de7cac9d6cac12c0c5a3ae48543b
10. 0x5b4d285b47d955b31f2cd89eac56d478f74fdf517a63412ee7de7e1fbbc40607
11. 0x52f2f5577c556f825a80c2f8ecb90d03b52b0d2a34fbe7caa8b2d39106e9db10
12. 0xa757be925280eb68af83252e53d459806a828f69a86ca1efa5f7c512fd57f458
13. 0xd7d3bfe4670fa6bdde44d198ca661840b2abfe18e9099f606cc8dbc11ac3c436
14. 0x6ae97c2bdc679e3326a739627f6c3a307d7e25e547b9bf23dbf2622fb26d858e
15. 0x23f4763e8db2efe57fbc28dfc68f2b97b65f54a03425994e68157763af649a50
16. 0x0e5696ae625571c52ddcd8dc09aa6c994b4ab38f2086df20d56f1f01c603e501
17. 0xf9973981f80219d4f00fa9186b40a8144accc0c9875572fb79eaea312a21a187
18. 0x4d205063c881c48edbbb37762a8d3bbb7444d4c42daa882f663a231893d25c35
19. 0x365b161a4b68d750dcc4b3ecce1154a2163c87b08762079428e68f0ebb6a754e

Day root

0x78fecaabbe319e56f5c4b80fc02e2052e198ad24781da8832a475ff65f2002d1

Chained

0xdc35957db5d1371ca382b9152878ffece28ec7c5cb4f98fd71ddb367f8b999b2

Published

On Arc Testnet, block 70432815: 0x56b814612eb2e3e544153df3e91e1f7199106d1e430c7d8c6b653feeb9ebe9af