Stellar's built-in Data Entries feature limits metadata storage to 128 bytes per chunk and creates permanent blockchain bloat. Stellar Expert analyzes three approaches to off-chain account metadata: REST API endpoints, distributed hash table references, and a dedicated metadata service, weighing trade-offs between decentralization, scalability, and protocol change requirements.
Stellar's Data Entries limit metadata to 128 bytes per chunk, lock base reserves, and permanently clutter the ledger. Storing metadata for just 1,000 users updating once per minute adds 5GB monthly. Stellar Expert examines three approaches: REST APIs anchored in stellar.toml (simple but centralized), DHT-based hash references (secure but on-chain data), and a distributed metadata service (scalable but new infrastructure). Each trades off decentralization, protocol changes, and interoperability among applications. The analysis underscores the need to move beyond Data Entries to enable metadata-rich applications like multisig protocols, smart contracts, and wallets.
