The phrase 'not your keys, not your coins' highlights a fundamental truth: if someone else holds your private keys, they control your assets. Exchange collapses (FTX, Mt. Gox) have repeatedly proven this risk. Self-custody eliminates counterparty risk by ensuring the user always controls access to their funds.
JIL Sovereign Technologies Incorporated manages and operates getjil.com and wallet.getjil.com. The default key is reconstructed on the server. There is no user shard. A hardware wallet or a Safe whose owners you control is where you hold the keys. This page is a glossary note. It is not a claim that the wallet runs this network, bridge, rollup, or chain. Payment integrity at jilsovereign.com is the same company as the Layer-1 host and a different product. The same company manages and operates this wallet. The software is owned by JIL Sovereign Holdings, LLC (WY). The Layer-1 at jilsovereign.net is not an Ethereum chain.
A self-custody wallet lets you hold your own private keys so you - and only you - can authorize transactions. No third party controls your funds.
No. The default key is reconstructed on the server. There is no user shard. This page does not claim JIL Wallet implements the topic.