Worldcoin Crypto's Claims on Enabling Privacy with ZK Proofs

The first tweet claimed about using ZK proofs to protect privacy which in my opinion means it hashes data and erases the original iris scans.

ZK Proofs to Protect Privacy (on Aug 18, 2023)

The biggest claim is that Worldcoin uses ZK Proofs and Semaphore to protect the privacy of Orb users. This claim was made on August 18, 2023, via Twitter.

ZK Proofs are scaling solutions that improve L1's speed by computing L1 transactions off the L1 chain and submitting a hash proof to ensure that the data has not been tampered with. Since a summary of transactions is submitted at the end of each block, L2S can't do some mischief without affecting the hash results.

Similarly, it can be inferred from the above information that Worldcoin stores some kinds of hashes of iris scans and issued World IDs based on them. But, then Edward Snowden also pointed out, that iris scans can be still matched with World ID data and attributed to a person.