Soulbound Token
A Soulbound Token (SBT) is a type of non-transferable cryptocurrency token that represents a person's identity, credentials, or reputation on a blockchain. Unlike regular NFTs, SBTs cannot be bought, sold, or transferred, making them useful for verifying achievements, memberships, or social relationships. The concept was proposed as a way to build decentralized identity and trust systems without relying on centralized authorities.
A Soulbound Token (SBT) is a type of non-transferable cryptocurrency token that represents a person's identity, credenti...
entity.trust_medium
Sep 2026 · Punteggio di freschezza: 50%
What is Soulbound Token?
A Soulbound Token (SBT) is a type of non-transferable cryptocurrency token that represents a person's identity, credentials, or reputation on a blockchain. Unlike regular NFTs, SBTs cannot be bought, sold, or transferred, making them useful for verifying achievements, memberships, or social relationships. The concept was proposed as a way to build decentralized identity and trust systems without relying on centralized authorities.
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An issuer, such as a university, employer, or community, mints an SBT directly to a recipient's account. The token's non-transferability is enforced either at the protocol level or through social and community enforcement, since a token cou
SBTs could enable credit scoring, sybil resistance, and verifiable credentials in Web3, addressing a major gap: blockchains are good at proving what you own but poor at proving who you are. Their challenges include privacy, revocation, and
Knowledge Graph
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Overview
A Soulbound Token, or SBT, is a non-transferable cryptocurrency token that represents a person's identity, credentials, or reputation on a blockchain. Unlike regular NFTs, SBTs cannot be bought, sold, or transferred; they are bound to a single account, called a Soul. The concept was proposed to bring verifiable identity and social trust on-chain without making credentials tradeable.
How It Works
An issuer, such as a university, employer, or community, mints an SBT directly to a recipient's account. The token's non-transferability is enforced either at the protocol level or through social and community enforcement, since a token could technically be transferred by the holder. Because SBTs persist with the account, they can accumulate into a verifiable reputation history that applications can read when deciding trust or access.
Why It Matters
SBTs could enable credit scoring, sybil resistance, and verifiable credentials in Web3, addressing a major gap: blockchains are good at proving what you own but poor at proving who you are. Their challenges include privacy, revocation, and preventing a secondary market from forming. As of 2026 the concept remains experimental but influential across identity and reputation design.
Related Concepts
SBTs belong to the Identity layer alongside ENS and Account Abstraction. They interact with Governance by enabling identity-weighted voting and with DAO reputation systems that are not tradeable.
Frequently Asked Questions
What is Soulbound Token?
A Soulbound Token (SBT) is a type of non-transferable cryptocurrency token that represents a person's identity, credentials, or reputation on a blockchain. Unlike regular NFTs, SBTs cannot be bought, sold, or transferred, making them useful for verifying achievements, memberships, or social relationships. The concept was proposed as a way to build decentralized identity and trust systems without relying on centralized authorities.
How does Soulbound Token work?
A Soulbound Token, or SBT, is a non-transferable cryptocurrency token that represents a person's identity, credentials, or reputation on a blockchain. Unlike regular NFTs, SBTs cannot be bought, sold, or transferred; they are bound to a single account, called a Soul. The concept was proposed to brin
Why does Soulbound Token matter in Web3?
An issuer, such as a university, employer, or community, mints an SBT directly to a recipient's account. The token's non-transferability is enforced either at the protocol level or through social and community enforcement, since a token could technically be transferred by the holder. Because SBTs pe