Evidence row 4159

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://voice.madebydevx.com/v1/ocr"
    ],
    [
      "x402",
      "https://voice.madebydevx.com/v1/stt"
    ],
    [
      "x402",
      "https://voice.madebydevx.com/v1/translate"
    ],
    [
      "x402",
      "https://voice.madebydevx.com/v1/tts"
    ]
  ],
  "name": "voice.madebydevx.com",
  "owner_address": null,
  "raw": {
    "caip2_networks": [
      "eip155:137",
      "eip155:196",
      "eip155:42161",
      "eip155:43114",
      "eip155:8453"
    ],
    "category": "",
    "description": "",
    "domain": "voice.madebydevx.com",
    "endpoints": [
      {
        "description": "OCR for agents: send an image URL or base64 (PNG, JPEG, WebP, GIF; up to 3 MB) and get the text it contains in reading order, as plain text or Markdown (tables, lists). Works on screenshots, receipts, invoices, signs and documents. $0.002 USDC per image on Base; images with no readable text are not charged. Gemma 4 vision. By DevX.",
        "method": "POST",
        "parameters": [
          {
            "default": null,
            "description": "",
            "enumValues": [],
            "example": "https://voice.madebydevx.com/samples/invoice.png",
            "group": "body",
            "name": "image_url",
            "required": false,
            "type": "string"
          }
        ],
        "pricing": {
          "amount": "0.002",
          "currency": "USDC",
          "maxAmount": "",
          "minAmount": "",
          "network": "eip155:8453",
          "scheme": "exact"
        },
        "providerName": "",
        "quality": {
          "l30DaysTotalCalls": "2",
          "l30DaysUniquePayers": "2"
        },
        "serviceName": "DevX Voice",
        "tags": [
          "ocr",
          "image-to-text",
          "text-extraction",
          "vision",
          "documents"
        ],
        "url": "https://voice.madebydevx.com/v1/ocr"
      },
      {
        "description": "Speech to text for agents: send an audio URL, base64 or raw audio (WAV, MP3, FLAC, OGG, M4A, WebM; up to 20 min / 10 MB) and get the transcript, language, timed segments and WebVTT subtitles. Optional task=translate gives English text. $0.002 USDC per started minute on Base; failed or silent audio is not charged. Whisper large-v3-turbo. By DevX.",
        "method": "POST",
        "parameters": [
          {
            "default": null,
            "description": "",
            "enumValues": [],
            "example": "https://voice.madebydevx.com/samples/hello.mp3",
            "group": "body",
            "name": "audio_url",
            "required": false,
            "type": "string"
          },
          {
            "default": null,
            "description": "",
            "enumValues": [],
            "example": "en",
            "group": "body",
            "name": "language",
            "required": false,
            "type": "string"
          }
        ],
        "pricing": {
          "amount": "0.002",
          "currency": "USDC",
          "maxAmount": "",
          "minAmount": "",
          "network": "eip155:8453",
          "scheme": "exact"
        },
        "providerName": "",
        "quality": {
          "l30DaysTotalCalls": "2",
          "l30DaysUniquePayers": "2"
        },
        "serviceName": "DevX Voice",
        "tags": [
          "speech-to-text",
          "stt",
          "transcription",
          "whisper",
          "audio"
        ],
        "url": "https://voice.madebydevx.com/v1/stt"
      },
      {
        "description": "Machine translation for agents between 100 languages: send text (up to 5,000 chars), target_lang and optional source_lang (auto-detect by default) and get the translation. $0.001 USDC per started 1,000 characters on Base; failures are not charged. LibreTranslate/dTelecom-style {q, source, target} also accepted at /v1/translation. M2M100 1.2B. By DevX.",
        "method": "POST",
        "parameters": [
          {
            "default": null,
            "description": "",
            "enumValues": [],
            "example": "en",
            "group": "body",
            "name": "source_lang",
            "required": false,
            "type": "string"
          },
          {
            "default": null,
            "description": "",
            "enumValues": [],
            "example": "de",
            "group": "body",
            "name": "target_lang",
            "required": false,
            "type": "string"
          },
          {
            "default": null,
            "description": "",
            "enumValues": [],
            "example": "Good morning, how are you?",
            "group": "body",
            "name": "text",
            "required": false,
            "type": "string"
          }
        ],
        "pricing": {
          "amount": "0.001",
          "currency": "USDC",
          "maxAmount": "",
          "minAmount": "",
          "network": "eip155:8453",
          "scheme": "exact"
        },
        "providerName": "",
        "quality": {
          "l30DaysTotalCalls": "2",
          "l30DaysUniquePayers": "2"
        },
        "serviceName": "DevX Voice",
        "tags": [
          "translation",
          "translate",
          "languages",
          "multilingual",
          "m2m100"
        ],
        "url": "https://voice.madebydevx.com/v1/translate"
      },
      {
        "description": "Text to speech for agents: send text (up to 2,000 chars) in English, Spanish, French, Chinese, Japanese or Korean and get a WAV voice clip (base64 in JSON, or raw audio/wav with response_format=wav). $0.001 USDC per started 1,000 characters on Base; failures are not charged. Accepts dTelecom-style text/lang_code fields. MeloTTS. By DevX.",
        "method": "POST",
        "parameters": [
          {
            "default": null,
            "description": "",
            "enumValues": [],
            "example": "en",
            "group": "body",
            "name": "lang",
            "required": false,
            "type": "string"
          },
          {
            "default": null,
            "description": "",
            "enumValues": [],
            "example": "Hello from DevX Voice.",
            "group": "body",
            "name": "text",
            "required": false,
            "type": "string"
          }
        ],
        "pricing": {
          "amount": "0.001",
          "currency": "USDC",
          "maxAmount": "",
          "minAmount": "",
          "network": "eip155:8453",
          "scheme": "exact"
        },
        "providerName": "",
        "quality": {
          "l30DaysTotalCalls": "6",
          "l30DaysUniquePayers": "4"
        },
        "serviceName": "DevX Voice",
        "tags": [
          "text-to-speech",
          "tts",
          "speech",
          "voice",
          "audio"
        ],
        "url": "https://voice.madebydevx.com/v1/tts"
      }
    ],
    "enriched": false,
    "iconUrl": "https://res.cloudinary.com/bdb-prod/image/upload/c_fill,ar_1:1,w_256,h_256,f_auto,q_auto/v1792674330/bazaar-icons/e0e6fd42800bc2b7.png",
    "id": "voice-madebydevx-com",
    "integrationType": "",
    "isNew": false,
    "name": "voice.madebydevx.com",
    "networks": [
      "Base",
      "eip155:137",
      "eip155:196",
      "eip155:42161",
      "eip155:43114"
    ],
    "priceSummary": {
      "avgCostBasis": "exact",
      "avgCostPerTransaction": "0.0015",
      "currency": "USDC",
      "maxAmount": "0.002",
      "minAmount": "0.001"
    },
    "provider": "voice.madebydevx.com",
    "providerUrl": "",
    "serviceName": "DevX Voice",
    "tags": [
      "ocr",
      "image-to-text",
      "text-extraction",
      "vision",
      "documents",
      "speech-to-text",
      "stt",
      "transcription",
      "whisper",
      "audio",
      "translation",
      "translate",
      "languages",
      "multilingual",
      "m2m100",
      "text-to-speech",
      "tts",
      "speech",
      "voice"
    ]
  },
  "source": "agentic_market",
  "summary": ""
}

What the leaf hashes

{"body":"ffa2921bec7c3f389f8b26d2b6a3e0150ea2c394ef4d954125c18b42d37f6aa6","id":4159,"kind":"listing","method":"baseline/1","observed_us":1793025277353946,"prev":null,"subject":"agentic_market:voice-madebydevx-com","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. 0xb192983cf51fadf37cb0380c3ec799adec1ed852ce04fd80bf4c032e368c7796
2. 0x58c0d0fab2c7351cd2748a04cef9081081da9cb1a42ab9438d24b71bd611278c
3. 0x133c7510e524ca31333bffb2909455f937061f2f14b3d4ba5b902dff2a2eda91
4. 0xcdee45ce7b3f9a18e0e4c5591ea311c5bbd00578950193832f167b45ed9277b6
5. 0xba82d539c9b8347e9f4fcae3ba7182e930649045d53c64f9b9f082631f337eaf
6. 0x495871726f8d5cc367e9929422fd3dfa41e449147ea91721713b3abb73f13b86
7. 0xef0f01bb7410c9637e697696c1f11a61bf0e4959e8d38c4a49ef5e97fbb22a34
8. 0x527c5c0df222260e163968a7fcec036fd8052bbf9ecabbd940b19558e11303ea
9. 0x5ad59d1988acc8b07b9ffc72b5e1990ed5cadff1428a00539c681b07fe31e748
10. 0xd5cd216c2216432b3046cca4e23b3c34d41ceff1aa810aa4eea5bd58437939ce
11. 0xb673e7e79847b2398685ec91a7c3b2395fccef249a8f8983b5eecc97a794a3ec
12. 0xce1aeb889b974291cea1fbfd01595655bd2c1b3636dc5b56eeb8904adb9f6c65
13. 0x3b1c0e225d1b1cb24cd5d5ea4af2de20ed68a1eaf8b61924ed1b81e4b9cf7e39
14. 0x083427e39db4dd470662401f6db5db8fadf084fc4274cf8621b368416952b78b
15. 0x1a74ed3b3756b9cd946da49701bcec120ec88645013da99fa9eea60b39e1a570
16. 0x123ec8bee20ddc55223eeef5a4f4d6c4b6416515adbb911c56759f5cde56e452
17. 0xd0651cb9bc8155eb52b5247d506e74b8a935057dc190ba52091702ac25ed3a40
18. 0x9a9024edb5069d88a324facb310a5ce8e495214bbaa968f077bede437390194f
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae