Didit vs. Worldcoin

The Didit and Worldcoin projects share several architectural similarities, including a protocol, ID system, app, and token. This overlap is by design, as Didit has drawn significant inspiration from Worldcoin’s approach to identity and finance. However, while these projects may appear similar on the surface, they each take distinct paths in how they approach identity verification, user interaction, and growth strategies.

Worldcoin has quickly become a prominent player in the digital identity and cryptocurrency space. The project is known for its ambitious goal of establishing a global identity network through innovative biometric technology, specifically using iris scans to create unique identifiers for individuals. Worldcoin’s approach to identity verification has sparked widespread debate and scrutiny, particularly around privacy and data security concerns. However, at Didit, we believe that much of this scrutiny stems from a lack of understanding. We recognize that Worldcoin is making significant contributions to the space by driving innovation forward and exploring bold, new ideas.

We also believe that healthy competition is essential for progress. In the spirit of capitalism, competition pushes all of us to be better, innovate faster, and ultimately drive more value to people. We admire organizations like Worldcoin that are pushing the boundaries and doing impressive work in this rapidly evolving field.

Didit Protocol vs Worldcoin Protocol

Identity Verification response for a service provider in Didit

{
  "session_id": "11111111-2222-3333-4444-555555555555",
  "session_number": 43762,
  "status": "Declined",
  "vendor_data": "11111111-1111-1111-1111-111111111111",
  "callback": "<https://verify.staging.didit.me/>",
  "features": "OCR + FACE",
  "kyc": {
    "status": "Approved",
    "document_type": "Passport",
    "document_number": "BK123456",
    "personal_number": "999999999",
    "portrait_image": "<https://example.com/portrait.jpg>",
    "front_image": "<https://example.com/front.jpg>",
    "back_image": null,
    "date_of_birth": "1990-01-01",
    "expiration_date": "2026-03-24",
    "issuing_state": "ESP",
    "issuing_state_name": "Spain",
    "first_name": "Sergey",
    "last_name": "Kozlov",
    "full_name": "Sergey Kozlov",
    "gender": "M",
    "address": null,
    "is_nfc_verified": false,
    "parsed_address": null,
    "created_at": "2024-07-28T06:46:39.354573Z"
  },
  "aml": {
    "status": "In Review",
    "total_hits": 1,
    "hits": [
      {
        "id": "aaaaaaa-1111-2222-3333-4444-555555555555",
        "match": false,
        "score": 0.7034920634920635,
        "target": true,
        "caption": "Kozlov Sergey Alexandrovich",
        "datasets": ["ru_acf_bribetakers"],
        "features": {
          "person_name_jaro_winkler": 0.8793650793650793,
          "person_name_phonetic_match": 0.5
        },
        "last_seen": "2024-07-20T17:53:03",
        "first_seen": "2023-06-23T12:02:51",
        "properties": {
          "name": ["Kozlov Sergey Alexandrovich"],
          "alias": ["Козлов Сергей Александрович"],
          "notes": [
            "Assistant Prosecutor of the Soviet District of Voronezh. Involved in the case against the Ukrainian pilot Nadiya Savchenko"
          ],
          "gender": ["male"],
          "topics": ["poi"],
          "position": [
            "Organizers of political repressions",
            "Организаторы политических репрессий"
          ]
        },
        "last_change": "2024-02-27T17:53:01"
      }
    ]
  },
  "face": {
    "face_match_status": "Approved",
    "liveness_status": "Approved",
    "face_match_similarity": 97.99,
    "liveness_confidence": 87.99,
    "source_image": "<https://example.com/source.jpg>",
    "target_image": "<https://example.com/target.jpg>"
  },
  "warnings": [
    {
      "feature": "AML",
      "risk": "Possible match found in AML screening"
    }
  ],
  "reviews": [
    {
      "user": "compliance@example.com",
      "new_status": "Declined",
      "comment": "Possible match found in AML screening",
      "created_at": "2024-07-18T13:29:00.366811Z"
    }
  ],
  "extra_images": [],
  "request_info": {
    "isp": null,
    "ip_city": "Barcelona",
    "ip_state": "Barcelona",
    "latitude": 41.4162,
    "platform": "desktop",
    "longitude": 2.1543,
    "os_family": "Mac OS X",
    "time_zone": "Europe/Madrid",
    "ip_address": "83.50.94.19",
    "ip_country": "Spain",
    "device_brand": "Apple",
    "device_model": "Mac",
    "organization": null,
    "is_vpn_or_tor": false,
    "browser_family": "Chrome",
    "is_data_center": false,
    "time_zone_offset": "+0200"
  },
  "created_at": "2024-07-24T08:54:25.443172Z"
}

Main summary:

• Identity Verification: Didit uses government-issued IDs, while Worldcoin relies on biometric iris scans via the Orb. Worldcoin does not offer it’s verification solution to other service providers.
• Auth + Data: Both use OpenID, but Didit offers more scopes for service providers.
• Digital Payments: Didit’s payment functionality is upcoming, while Worldcoin’s is pending, with potential through World Chain.

Didit ID vs World ID

POST userinfo response from Didit:

{
  "sub": "212a7ef2-f934-47e2-94eb-907b94c9d443",
  "picture": "<https://example.com/picture.png>",
  "names": {
    "first_name": "Alejandro",
    "family_name": "Rosas Garcia",
    "full_name": "Alejandro Rosas Garcia"
  },
  "email": {
    "email": "alejandro@example.com",
    "is_verified": true
  },
  "phone": {
    "phone_number": "+34123456789",
    "is_verified": true
  },
  "gender": {
    "sex": "MALE",
    "is_verified": true
  },
  "nationality": "ESP",
  "document_details": {
    "type": "PASSPORT",
    "issuing_country": "ESP",
    "document_number": "123456789",
    "personal_number": "123456789",
    "expiration_date": "2022-12-31",
    "issuing_authority": "HM Passport Office",
    "front_image": "<https://example.com/front.png>",
    "back_image": "<https://example.com/back.png>",
    "is_nfc_verified": true
  },
  "birthdate": {
    "date": "1990-01-01",
    "is_verified": true
  },
  "address": {
    "full_address": "Calle Viladomat, 2, 08023 Barcelona, Barcelona, Spain",
    "street": "Calle Viladomat",
    "number": "2",
    "postal_code": "08023",
    "city": "Barcelona",
    "state": "Barcelona",
    "country": "Spain"
  },
  "bank_account": {
    "number": "GB03SDNO58754297408866",
    "swift": "SSTTGBX9",
    "country": "GB",
    "is_verified": true
  },
  "preferences": {
    "language": "en",
    "currency": "usd",
    "time_zone": "GMT+1"
  },
  "is_verified": true,
  "is_over_18": true,
  "is_over_21": true,
  "instagram_account": {
    "uid": "123456789",
    "username": "alejandro",
    "email": "alejandro@example.com",
    "profile_url": "<https://instagram.com/alejandro>",
    "profile_image_url": "<https://example.com/profile.png>",
    "public_metrics": {
      "followers": 1000,
      "following": 1000,
      "posts": 1000
    },
    "is_verified": true
  },
  "x_account": {
    "uid": "123456789",
    "username": "alejandro",
    "email": "alejandro@example.com",
    "profile_url": "<https://x.com/alejandro>",
    "profile_image_url": "<https://example.com/profile.png>",
    "public_metrics": {
      "followers": 1000,
      "following": 1000,
      "posts": 1000
    },
    "is_verified": true
  },
  "tiktok_account": {
    "uid": "123456789",
    "username": "alejandro",
    "email": "alejandro@example.com",
    "profile_url": "<https://tiktok.com/alejandro>",
    "profile_image_url": "<https://example.com/profile.png>",
    "public_metrics": {
      "followers": 1000,
      "following": 1000,
      "posts": 1000
    },
    "is_verified": true
  }
}

POST userinfo response from Worldcoin:

{
	"sub": "0x2ae86d6d747702b3b2c81811cd2b39875e8fa6b780ee4a207bdc203a7860b535",
	"<https://id.worldcoin.org/beta>": { // deprecated, will be removed in the future
		"likely_human": "strong",
		"credential_type": "orb"
	},
  "<https://id.worldcoin.org/v1>": {
    "verification_level": "orb", // "orb" or "device"
  },
  // if email scope is included:
	"email": "0x2ae86d6d747702b3b2c81811cd2b39875e8fa6b780ee4a207bdc203a7860b535@id.worldcoin.org", 
  // if profile scope is included:
	"name": "World ID User",
	"given_name": "World ID",
	"family_name": "User"
}

Main Summary:

• Authentication: Both Didit and Worldcoin use OpenID for authentication, enabling seamless sign-in.
• Scopes: Didit offers a wider range of scopes, including detailed personal and social media information, while Worldcoin is limited to openid, email, and profile.
• Refresh Tokens: Didit supports persistent access via the offline scope; Worldcoin does not support refresh tokens.
• On-Chain Identity: Didit does not yet support on-chain identity, whereas Worldcoin offers it through smart contracts.
• Proof of Personhood: Didit uses government-issued ID verification, while Worldcoin relies on biometric iris scans via the Orb.

Didit App vs World App

Didit Token vs World Token

Conclusions

Although Didit and Worldcoin share many structural similarities, their approaches to identity verification, user interaction, and growth strategies diverge significantly, highlighting their unique contributions to the digital identity space.

Didit emphasizes a broad and inclusive identity verification system based on government-issued IDs. This approach supports a wide range of use cases, particularly in scenarios requiring verified identity data. By integrating with service providers for KYC and AML processes, Didit not only ensures thorough verification but also positions itself as a comprehensive solution that is freely available to service providers, promoting widespread adoption.

Worldcoin, on the other hand, is pioneering the use of biometric technology, specifically iris scans, to establish Proof of Personhood. This method addresses significant challenges such as preventing sybil attacks and ensuring that each user is uniquely human. While this approach has sparked debate, particularly concerning privacy and data security, it represents a bold step toward scalable, privacy-preserving digital identity verification. Worldcoin’s use of Zero-Knowledge Proofs further enhances user privacy, allowing individuals to prove their identity without exposing sensitive biometric data.

Both projects incentivize the creation and use of their respective IDs through token rewards, yet their strategies reflect their differing priorities. Didit’s focus on offering its verification solution for free to service providers aims to accelerate network growth and foster greater adoption. In contrast, Worldcoin’s strategy centers on the global adoption of World ID and the integration of its token into decentralized financial systems, laying the groundwork for broader digital financial inclusion.

In the rapidly evolving landscape of digital identity, both Didit and Worldcoin are pushing the boundaries of what is possible. Their innovations, driven by competition and a shared goal of enhancing human value, are paving the way for a future where secure, accessible, and verifiable digital identities are a fundamental part of global interactions.