Active and upcoming

Issuers Registry is an on-chain registry that records which decentralised identifiers (DIDs) are trusted to issue verifiable credentials. It maintains an append-only accreditation hierarchy (RootTAO → TAO → TI) and per-issuer proxy records, with authorization delegated to the external Policies Registry and DID Registry.

Track and Trace is an EBSI document track-and-trace registry. Invited DID controllers create documents by hash through a commit–reveal flow, manage CREATE/DELEGATE/WRITE access, and append timestamped events under DID and policy checks.

The project implements an EVM-based Decentralized Identifier (DID) registry that conforms to the W3C DID Data Model, allowing users to register on-chain DID documents and manage their controllers, verification methods, and verification relationships. Access to mutating operations is gated by DID controllership or, alternatively, by policies resolved through an external policy registry contract.

Europeum operates and scales Europe's sovereign digital trust infrastructure, enabling secure, transparent, and interoperable services across the public and private sectors.

The in-scope contracts form the Policy Registry module of the EBSI (European Blockchain Services Infrastructure) on-chain identity and access stack, an EVM-based Solidity system. The registry stores named policy definitions and assigns them as attributes to user addresses, allowing other contracts to query whether a given user holds a given policy via checkPolicy.

Europeum operates and scales Europe's sovereign digital trust infrastructure, enabling secure, transparent, and interoperable services across the public and private sectors. The EBSI Trusted Schemas Registry (TSR) is an on-chain component of the European Blockchain Services Infrastructure that stores, versions, and serves JSON schema definitions and their associated metadata for the EBSI ecosystem. Deployed as an upgradeable Solidity contract on an EBSI EVM-compatible ledger, it maintains an append-only history of schema revisions keyed by SHA2-256 content hashes, while delegating all write authorization to an external policy registry.

Quantus is a Layer 1 blockchain designed to keep digital assets secure against the emerging threat of quantum computing. Built on Polkadot's Substrate framework and secured by proof-of-work, it replaces elliptic-curve cryptography with lattice-based, post-quantum signatures (an ML-DSA / CRYSTALS-Dilithium scheme), adds a ZK-friendly Poseidon2 hash and a Plonky2-based proof-aggregation layer for scalability, and includes a zk-wormhole system modeled on EIP-7503 for private transfers. It is delivered as a Substrate node, runtime, and pallets, dedicated Rust cryptography libraries for the signatures, hashing, and ZK circuits, and a mobile wallet app. Together these aim to offer a full, quantum-resistant environment for holding and transacting digital wealth.

Firelight is an on-chain cover protocol. The contracts implement an upgradeable ERC4626-compatible vault for staked collateral, an off-chain-matched cover order allocation flow, cover receipt NFTs, incident assessment and payout execution, a vault reward distributor, and a Flare FTSO v2 price adapter exposed through a Chainlink AggregatorV3-compatible read surface.

TCG-VAULT is a community ecosystem built around trading card game collectibles, combining physical TCG assets — sealed products and graded cards — with Web3 infrastructure deployed on BNB Chain.

ENS (Ethereum Name Service) is a distributed, open, and extensible naming system based on the Ethereum blockchain. ENS maps human-readable names like 'alice.eth' to machine-readable identifiers such as Ethereum addresses, other cryptocurrency addresses, content hashes, and metadata. It functions as a decentralized alternative to the traditional DNS, allowing users to replace long, complex wallet addresses with simple, memorable names. Built on a system of smart contracts, ENS supports both the '.eth' top-level domain native to Ethereum and the integration of traditional DNS names. Its architecture is composed of two principal components: the registry, which maintains the record of all domains and their owners, and resolvers, which are responsible for translating names into the corresponding addresses or resources.