What is being built on Hedera Hashgraph?

Could you elaborate on the current developments and projects being constructed on the Hedera Hashgraph platform? I'm particularly interested in understanding the range of applications and use cases that are leveraging the unique properties of Hedera's distributed ledger technology. Are there any groundbreaking projects in the finance, supply chain, or healthcare sectors that are utilizing Hedera's hashgraph consensus algorithm? Additionally, what are some of the key partnerships and collaborations that are enabling these advancements on the Hedera network?