ERC-3643 Security Token: Solana Context — Forge College

How do you translate ERC-3643 security token rules—issuer-managed transfer restrictions, identity attestations, and partitioned balances—into Solana’s account model? This lesson builds the conceptual baseline you need to map ERC-3643 semantics onto Solana primitives while keeping upgradeability and authority concerns front-and-center. What you'll learn In this intermediate lesson you will be able to identify ERC-3643’s core building blocks (issuer authority, identity registries, transfer restrictions, partitioned balances, and compliance metadata) and describe a security token’s lifecycle: issuance, compliant transfer, freezing/revocation, and redemption. You will contrast each ERC-3643 mechanism with Solana primitives—SPL Token Program accounts, Token-2022 extensions, program-derived addresses (PDAs), and off-chain attestation services—and learn which features can be represented natively, which require on-chain program logic, and which are best kept off-chain. The lesson explains how upgradeability, authority rotation, and state migration decisions affect field-level mapping choices and where regulatory metadata should live (token account, compliance PDA, or external registry). Who this is for Intermediate blockchain developers and architects who know ERC-20/ERC-721 basics and have practical familiarity with Solana and SPL tokens. Prior knowledge of on-chain program upgrade patterns and authority management is helpful. Key topics covered - ERC-3643 fundamentals: issuer roles, registries, compliance metadata - Identity & KYC: on-chain attestations vs off-chain services - Transfer restrictions & compliance checks in token lifecycle - Partitioned balances, freezing, revocation, and redemption flows - Parallels to Solana: SPL Token Program, Token-2022, PDAs - Mapping trade-offs: on-chain state layout, upgradeability, authority rotation Ready to map security token semantics to Solana primitives? Explore more resources and hands-on lessons at https://www.forge.college/