$IOTA

❌ Not in my portfolio — shared for awareness only.

IOTA uses a Directed Acyclic Graph structure called the Tangle — removing the traditional blockchain structure in favor of a transaction graph where each new transaction confirms two previous ones, eliminating miner fees entirely.

IOTA's feeless transaction architecture specifically targets IoT — machine-to-machine micropayments between devices create use cases that fee-based blockchains cannot serve economically at the transaction volumes IoT requires.

The IOTA Foundation has partnered with the German government, Volkswagen, and multiple European research institutions on digital identity and data integrity projects — institutional engagement at a meaningful scale.

IOTA's ShimmerEVM — its EVM-compatible smart contract layer — expanded the network's DeFi capabilities beyond the Tangle's original payment-focused architecture.

IOTA is one of the oldest alternative blockchain architectures — the feeless IoT thesis has been in development for nearly a decade, and the institutional European partnerships provide credibility that few similar projects have.