Token Standards

Plume supports a variety of token standards to represent the full spectrum of use cases across all categories of real world assets. Asset issuers can tokenize their assets directly from the Plume Admin Dashboard and deploy any of these token contracts with a single click. Here is a table outlining our supported token standards and their respective use cases:

Token Standard	Description	Examples of Real World Assets
ERC-20 Token Standard	Fungible tokens that are not investment contracts (no expectation of profits, not fractionalized)	Cryptocurrencies and stablecoins that can be exchanged for physical services Loyalty points at restaurants, airlines, retailers, sports teams, etc. Carbon offset credits
ERC-721 Non-Fungible Token Standard	Non-fungible tokens that are not investment contracts	Complete artworks like paintings, sculptures, prints, artifacts, etc. Individual casks of whiskey Intellectual property from patents, trademarks, copyrights, etc.
ERC-1155 Multi Token Standard	Semi-fungible tokens that are not investment contracts	Rare physical collectibles like stamps, coins, Pokemon cards, etc. Resources and items in online games Tradable tickets to physical events Physical IoT devices
ERC-3643 T-REX - Token for Regulated EXchanges	Fungible security tokens	Investments in physical projects like solar farms, infrastructure, mining, etc. Commercial and residential real estate Commodities like precious metals, crude oil, agricultural products, etc. Stocks, bonds, and other instruments

ERC-3643: T-REX - Token for Regulated EXchanges

ERC-3643 defines a token standard that can represent institutional-grade security tokens in a compliant manner. Asset issuers that tokenize their real world assets using ERC-3643 have access to interfaces that set transfer restrictions, freeze tokens, burn tokens, and forcibly transfer tokens—all critical actions for tokenized representations of real world assets regulated by securities agencies.

ERC-3643 was developed by Tokeny and submitted as an EIP in July 2021, and Tokeny has also developed an open-source reference implementation on GitHub. The standard is completely ERC-20 compatible, as it implements all required ERC-20 methods and events (

Relevant Unsupported Token Standards

We have chosen not to support certain relevant token standards for the initial launch of Plume. Many of these standards have low adoption among the community and only a single reference implementation. We will consider supporting some of these token standards only at the request of a dedicated RWA project that wants to onboard to Plume.

In particular, we do not support any of the finalized soul-bound token standards. The primary use case of soul-bound tokens in an ecosystem for real-world assets is to attest to user identities and accreditation status, which will instead be provided by the ONCHAINID system, with native integration for the ERC-3643 T-REX standard. The existing soul-bound token standards offer minimum functionality above the base ERC-721 NFT standard and have seen no serious adoption.

Token Standard	Description	Current Status
ERC-1400 Security Token Standard	Fungible security tokens	Extends ERC-20 to manage identity, compliance, transfer restrictions, redemption, and revocation for tokenized securities Has not reached the ERC standards track Has limited developer activity since 2021 Mainly championed by Polymath Network, and has limited deployments and ecosystem support
ERC-4519 Non-Fungible Tokens Tied to Physical Assets	Non-fungible tokens that represent physical assets	Extends ERC-721 to establish secure communication channels for IoT devices Only referenced in research papers written by the author Can implement at the request of new IoT projects on Plume
ERC-4973 Account-Bound Tokens	Soul-bound tokens with standard ERC-721 metadata	Implements ERC721Metadata interface but does not extend ERC-721 Not being used by any active project Still in Review phase
ERC-5114 Soulbound Badge	Soul-bound tokens that can only be minted	Does not extend anything Not being used by any active project Still in Last Call phase
ERC-5192 Minimal Soulbound NFTs	Soul-bound tokens that extends ERC-721	Extends ERC-721 by throwing on transfer functions and returning a boolean for whether it's locked Only one new function on ERC-721 Not being used by any active project
ERC-5484 Consensual Soulbound Tokens	Soul-bound tokens with immutable burn authorization	Extends ERC-721 by throwing on transfer functions and allowing the issuer or receiver to burn the token Only one new function on ERC-721 Not being used by any active project
ERC-5507 Refundable Tokens	Refundable fungible and non-fungible tokens	Extends ERC-20, ERC-721, and ERC-1155 with refund functions Holds funds in escrow for some period of time Can implement at the request of new shopping projects on Plume
ERC-6065 Real Estate Token	Non-fungible tokens that represent real estate	Extends ERC-721 to represent legal details of real estate on-chain Can implement at the request of new real estate projects on Plume
ERC-6239 Semantic Soulbound Tokens	Structured social graph data for soul-bound tokens	Extends ERC-5192 with Resource Development Framework triples Only being used by the author's own startup, Relation Labs Social graph data is not relevant to onboarding real world assets on Plume
ERC-6672 Multi-Redeemable NFTs	Non-fungible tokens that can be redeemed in multiple scenarios	Extends ERC-721 with redemption functions Can implement at the request of new ticketing projects on Plume