Harmony

• What would attract and motivate end users to use your blockchain?
• If a node has to store the data of many shards and constantly synchronize with other shards, can we call it a complete sharding? What will you do if there is a problem with communicating the master node? And isn’t that a vulnerability to a “1% Shard Attack”?
• When will you start using VDFs? Who will provide altruistic nodes running an ASIC to compute VDFs? And what will motivate the owners of these nodes?
• From the White Paper “<…>an attacker with a faster computing device could calculate the result before other honest nodes.<…> this problem can be mitigated on the smart contract layer with a proper delay”. What are the technical aspects of this solution?
• You assume malicious groups to be slow; therefore, they don’t have time to sync. Why don’t you assume the existence of a group of fast malicious nodes?
• What if a malicious node creates a smart contract to encourage the shard participants to test bad blocks that would create money out of thin air?
• How do you verify whether a transaction in a shard is incorrect?
• How did you solve the problem of trust and inter-shard transaction verification?
• In the case of blocking, how does the system conduct parallel processing of transactions between shards from the same account?
• What is the structure of shard accounts? Is it a single account, a number of separate accounts, or several combined accounts (sidechains)?
• How are you going to use QUIC and update its codebase? After all, the server side of QUIC uses epoll meaning you can only synchronize blocks on Linux. Could you provide any technical details?
• Nicolas Burtey, a co-founder and the COO. From 2012 to 2018 Burtey was working on a startup called Orah, a live streaming software for panoramic VR videos. The project website won’t work, but judging by the web archive, the website used to a considerable audience back in 2017. The project’s YouTube channel has about 10 thousand views for each of its dozen of videos. Crunchbase reports that the company conducted a private IPO, raising $8 000 000 as a result. After a couple of years, Orah was shut down without any public announcements.

Why was Orah shut down? What happened to the investors’ money?