Active protocols and infrastructure layers operating in this exact domain-and-identity space validate how decentralized global identification works in practice:

1. Decentralized Naming Services & Alternative TLD Frameworks

 ENS (Ethereum Name Service): The most mature and widely adopted production example. ENS maps human-readable names (like ⁠alice.eth⁠) to crypto addresses, content hashes, and profile metadata. It operates fully via smart contracts on Ethereum, making it self-sovereign and censorship-resistant.

 Freename: A prominent multi-chain Web3 TLD registry platform that allows users and entities to mint, manage, and commercialize custom Top-Level Domains (such as ⁠.glb⁠ or branded extensions) directly on blockchains like Polygon and BNB Chain. It treats TLDs and second-level domains as user-owned NFTs with built-in registry monetization and resolution logic.  

 Unstoppable Domains: Operating across Polygon and other networks, Unstoppable issues user-owned domain extensions (like ⁠.crypto⁠, ⁠.nft⁠, ⁠.x⁠) stored as NFTs with zero renewal fees, mapping decentralized identities to multi-chain wallet destinations and IPFS-hosted web profiles.  

2. Decentralized Identifier (DID) Networks

 W3C DID Standards on Layer 1s: Networks like Sovrin or identity layers built on Cosmos and Substrate implement W3C-compliant Decentralized Identifiers. These allow individuals and corporations to host sovereign cryptographic identities that do not depend on centralized cloud providers or corporate identity providers (like Google or Apple Sign-In).

3. Middleware & Resolution Layers

 The Graph: Widely used across Web3 naming protocols to index blockchain smart contract events (like a new name registration or a record update) and make them queryable instantly via GraphQL APIs, solving the latency problem of reading raw chain state for global name resolution.

If you are looking to anchor an identifier format like ⁠leroy.glb⁠ globally, observing how ENS handles root-node governance and how multi-chain naming protocols handle cross-network resolution offers the closest blueprint to production-grade execution.