Verifiable timestamps and ordering of events.
Everyone now has access to real-time and historical raw data files for the Hedera testnet and mainnet via public AWS and GCP buckets. In addition, the Hedera-ETL tool and beta mirror node software is available, including one-click deploy in GCP Marketplace.
Hedera has brought verifiability and transparency to the PDFs on Hedera.com with "Trust Bucket" — a hackathon submission for Hedera20 that offers verifiable object storage for Amazon S3 using the Hedera Consensus Service.
In Proof of Stake (PoS) systems, 'slashing' refers to the possibility of a node determined to be breaking the rules of the protocol being punished by the loss of some or all of the stake (coins) they had put forward.