Key Characteristics of Soul-Bound Tokens (SBTs)

• Non-Transferable:

  • SBTs cannot be sold, traded, or transferred to another individual, ensuring that the achievements they represent remain tied to the person who earned them.

  • This feature safeguards the integrity of credentials and eliminates issues like credential fraud or impersonation.

• Immutable and Verifiable:

  • Once issued, SBTs are stored permanently on the blockchain. Their immutability ensures that they cannot be altered or tampered with.

  • Verification is instantaneous and transparent, as anyone (e.g., employers, institutions) can validate the token’s authenticity directly on-chain.

• Universally Recognized:

  • SBTs are interoperable across platforms and institutions, making them universally portable and accessible to learners worldwide.

  • For example, an SBT representing a blockchain programming certificate can be used across various job portals or educational platforms without revalidation.

• Dynamic and Upgradeable:

  • While SBTs are immutable, they can be linked to other tokens or achievements, allowing dynamic representation of a learner’s progress.

  • For example, completing an advanced-level course may upgrade an existing SBT with additional metadata or endorsements.

• Layered Credentials:

  • SBTs can represent various levels of achievement, from micro-credentials (e.g., completing a short module) to full degrees or professional certifications.