yup! everything is on the BSV blockchain as a transaction with useful metadata like that :) you can search up any transaction ID and see its data on chain using blockchain explorers like https://bitcoinfiles.org/ or https://blockchair.com/
that is the transaction hash ID of whatever twetch post was liked. so if you put that hash at the very end of twetch.app/t/<insert_hash_here> it will link to the twetch post that was liked