All About Soulbound Tokens

Sui · 2024-09-09T16:53:02.000Z

Coined by Ethereum co-founder Vitalik Buterin, a Soulbound token (SBT) is an NFT designed to be permanent and non-transferable. Unlike typical NFTs, which can be freely traded, SBTs remain bound to their original account, much like how skills or accomplishments in a game are tied to an individual user or account and cannot be transferred or traded. SBTs are useful in representing a person's identity, credentials, or achievements in the digital world. The potential applications for SBTs are vast, ranging from verifiable credentials and reputation systems to more nuanced forms of governance and asset management. By providing a way to represent non-transferable attributes onchain, SBTs could revolutionize how we approach digital identity, professional certifications, and even social credit systems in decentralized environments. Technical implementation of SBTs on Sui To make an NFT non-transferrable on Sui, thereby creating an SBT, developers can leverage Sui's object-centric data model. The primary step to create an SBT on Sui is to remove the store ability from the NFT structure. This crucial modification prevents the token from being freely transferred to other addresses using Sui's standard transfer functions. When an object lacks the store ability, only the module that defined the object can transfer it, using the sui::transfer::transfer function. This restriction allows developers to implement custom transfer rules, providing fine-grained control over how and when the token can be transferred, if at all. By combining these features, developers can create tokens that exhibit the non-transferrable nature characteristic of SBTs, while still maintaining flexibility in defining specific behaviors as required by their use case. Sui allows SBTs to evolve One of the standout features of SBTs on Sui is their ability to incorporate dynamic properties through Sui's dynamic fields. This functionality allows Sui NFT attributes to be modifiable after initial creation. As a result, SBTs can evolve based on creator decisions, user actions or achievements, changes in a user's status or credentials, and adapt to new use cases without requiring a new token. This dynamic capability enhances the utility of SBTs, making them more relevant and valuable over time. Sui's object display standard complements SBTs by providing opportunities for enhanced visualization and interaction with these non-transferrable tokens. The display standard can be utilized to create custom visualization logic for SBTs, ensuring that their unique properties and dynamic nature are accurately represented in user interfaces. By combining these features, developers can create SBTs on Sui that are not only non-transferrable but also dynamic and adaptable, opening up new possibilities for various use cases. Case studies of SBTs on Sui Token allocations: DeepBook and NS DeepBook, Sui's native liquidity layer, and SuiNS, the premier name service on Sui, have both utilized SBTs as a way to provide clear token allocations to users before token generation. DeepBook's DBClaimNFT serves as a soulbound claim ticket for the upcoming DEEP token launch. This innovative approach ensures that early supporters and community members have a verifiable, non-transferable right to claim tokens upon launch. Similarly, SuiNS employed SBTs for its upcoming plans to decentralize, further establishing the use of SBTs as a valuable tool for distribution strategies. The use of SBTs for token allocations opens up exciting possibilities for project governance and community engagement before a token's official launch. For example, projects could use SBTs to grant early governance rights, allowing token holders to participate in a formal decision-making process and shape the project's direction even before a token is live. SuiLink SuiLink leverages SBTs to create cross-chain identity verification. By issuing SBTs on Sui, SuiLink establishes a direct, verifiable link between a user's Ethereum or Solana address and their Sui address. This implementation of SBTs creates an onchain representation of user identities across multiple blockchain ecosystems. This approach shows the potential of SBTs in enhancing interoperability, potentially facilitating more secure and reliable cross-chain interactions. SuiPlay0X1 purchases SuiPlay0X1 leveraged SBTs to represent pre-order purchases of their physical devices. This application demonstrates how SBTs can bridge the gap between digital and physical assets while ensuring certified reservation and uniqueness onchain. Each pre-order is represented by an SBT, creating a digital twin of the physical device reservation. Notably, the first 1,000 pre-order customers received special edition SBTs with distinct visual representations, adding an extra layer of exclusivity. Furthermore, each SBT is sequentially numbered to correspond with the order of purchase, so the 1,001st buyer received an SBT prominently displaying "#1001". This numbering system not only verifies the order of purchase but also creates a sense of community and status among early adopters. The appearance of SuiPlay0X1 NFTs varies based on whether they are among the initial 1,000 or not. By using SBTs for these pre-orders, SuiPlay0X1 ensures that each reservation is uniquely tied to its original purchaser, preventing unauthorized transfers or resales of pre-order rights. This approach highlights how soulbound tokens can add value and significance to digital representations of physical items, especially in contexts where the non-transferability of the right or reservation is crucial to maintaining fairness and authenticity in the distribution process. SBTs for tomorrow Unlike static SBTs on other platforms, Sui's implementation allows these tokens to evolve over time, adapting to changing circumstances and user interactions. This flexibility opens up exciting possibilities beyond the uses currently seen with DeepBook, SuiNS, SuiLink, and SuiPlay0X1. Looking ahead, we can envision SBTs impacting areas such as event ticketing, gaming achievements, and intellectual property protection. As the broader ecosystem grows, the dynamic capabilities of SBTs on Sui will play a crucial role in shaping new forms of digital identity and ownership, paving the way for innovative apps that we've yet to imagine.

靈魂綁定代幣 (SBT) 由以太坊聯合創始人 Vitalik Buterin 創造，是一種永久性且不可轉讓的 NFT。與可以自由交易的典型 NFT 不同，SBT 仍然綁定到其原始賬戶，就像遊戲中的技能或成就綁定到個人用戶或賬戶，無法轉讓或交易一樣。SBT 可用於在數字世界中代表一個人的身份、憑證或成就。
SBT 的潛在應用非常廣泛，從可驗證憑證和聲譽系統到更細緻入微的治理和資產管理形式。通過提供一種在鏈上表示不可轉讓屬性的方法，SBT 可以徹底改變我們在去中心化環境中處理數字身份、專業認證甚至社會信用系統的方式。
Sui 上 SBT 的技術實現
爲了使 NFT 在 Sui 上不可轉讓，從而創建 SBT，開發人員可以利用 Sui 以對象爲中心的數據模型。在 Sui 上創建 SBT 的主要步驟是刪除
店鋪
能力來自 NFT 結構。這一關鍵修改可防止使用 Sui 的標準傳輸功能將代幣自由轉移到其他地址。
當一個物體缺乏
店鋪
能力，只有定義對象的模塊可以使用 sui::transfer::transfer 函數來轉移它。此限制允許開發人員實現自定義轉移規則，從而對如何以及何時轉移代幣（如果有的話）提供細粒度的控制。通過結合這些功能，開發人員可以創建表現出 SBT 不可轉移性質的代幣，同時仍保持根據用例要求定義特定行爲的靈活性。
Sui 讓 SBT 得以進化
Sui 上的 SBT 的一個突出特點是它們能夠通過 Sui 的動態字段整合動態屬性。此功能允許在初始創建後修改 Sui NFT 屬性。因此，SBT 可以根據創建者的決策、用戶操作或成就、用戶狀態或憑證的變化而發展，並適應新的用例，而無需新的代幣。這種動態功能增強了 SBT 的實用性，使其隨着時間的推移更具相關性和價值。
Sui 的對象顯示標準爲 SBT 提供了增強可視化和與這些不可轉讓代幣交互的機會，從而對其進行了補充。該顯示標準可用於爲 SBT 創建自定義可視化邏輯，確保其獨特屬性和動態特性在用戶界面中得到準確呈現。通過結合這些功能，開發人員可以在 Sui 上創建不僅不可轉讓而且動態且適應性強的 SBT，從而爲各種用例開闢新的可能性。
隋文靜的 SBT 案例研究
代幣分配：DeepBook 和 NS
Sui 的原生流動性層 DeepBook 和 Sui 上的首要名稱服務 SuiNS 都利用 SBT 在代幣生成之前向用戶提供明確的代幣分配。
DeepBook 的 DBClaimNFT 是即將推出的 DEEP 代幣的靈魂綁定認領票。這種創新方法可確保早期支持者和社區成員在代幣發佈時擁有可驗證、不可轉讓的認領代幣的權利。同樣，SuiNS 在其即將實施的去中心化計劃中採用了 SBT，進一步確立了 SBT 作爲分銷策略的寶貴工具的用途。
使用 SBT 進行代幣分配爲代幣正式發佈之前的項目管理和社區參與開闢了令人興奮的可能性。例如，項目可以使用 SBT 授予早期治理權，讓代幣持有者在代幣上線之前就能參與正式的決策過程並決定項目的方向。
隨連
SuiLink 利用 SBT 創建跨鏈身份驗證。通過在 Sui 上發行 SBT，SuiLink 在用戶的以太坊或 Solana 地址與其 Sui 地址之間建立了直接、可驗證的鏈接。SBT 的這種實現在多個區塊鏈生態系統中創建了用戶身份的鏈上表示。這種方法展示了 SBT 在增強互操作性方面的潛力，可能促進更安全、更可靠的跨鏈交互。
SuiPlay0X1 購買
SuiPlay0X1 利用 SBT 來表示其物理設備的預訂購買。此應用程序展示了 SBT 如何彌合數字資產與物理資產之間的差距，同時確保經過認證的預訂和鏈上唯一性。每個預訂都由一個 SBT 表示，從而創建物理設備預訂的數字孿生。
值得注意的是，前 1,000 名預訂客戶收到了具有獨特視覺表現的特別版 SBT，這增加了額外的獨家性。此外，每個 SBT 都按順序編號以與購買順序相對應，因此第 1,001 位買家收到了一個突出顯示“#1001”的 SBT。這種編號系統不僅可以驗證購買順序，還可以在早期採用者中營造一種社區感和地位感。
SuiPlay0X1 NFT 的外觀取決於它們是否屬於最初的 1,000 個 NFT 之一。
通過使用 SBT 進行這些預訂，SuiPlay0X1 確保每個預訂都與其原始購買者唯一綁定，從而防止預訂權被未經授權轉讓或轉售。這種方法凸顯了靈魂綁定代幣如何爲實物的數字表示增加價值和意義，尤其是在權利或預訂的不可轉讓性對於維護分銷過程中的公平性和真實性至關重要的情況下。
明天的 SBT
與其他平臺上的靜態 SBT 不同，Sui 的實現允許這些代幣隨着時間的推移而發展，以適應不斷變化的情況和用戶互動。這種靈活性開闢了令人興奮的可能性，超越了目前在 DeepBook、SuiNS、SuiLink 和 SuiPlay0X1 中看到的用途。
展望未來，我們可以預見 SBT 將影響活動票務、遊戲成就和知識產權保護等領域。隨着更廣泛的生態系統的發展，Sui 上的 SBT 動態功能將在塑造新形式的數字身份和所有權方面發揮關鍵作用，爲我們尚未想象到的創新應用鋪平道路。

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