Keychat not only draws design inspiration from the postal system but also from Bitcoin wallets.

1.

Bitcoin wallets use a seed phrase.

Similarly, Keychat uses a seed phrase.

2.

Bitcoin allows users to maintain multiple wallets, enhancing privacy.

Similarly, Keychat users can have multiple IDs, enhancing privacy.

3.

Bitcoin wallet users can use their own Bitcoin node.

Similarly, Keychat users can use their own Nostr relay.

4.

Bitcoin wallets do not reuse addresses and continuously update their receiving addresses for better privacy.

Similarly, Keychat continuously updates its receiving and sending addresses to protect metadata and enhance privacy.

5.

Sending Bitcoin requires a transaction fee, which prevents spam and increases miner income. Especially as block rewards diminish over time, transaction fees will become the primary source of income for miners, allowing mining operations to continue sustainably.

Similarly, sending Keychat messages requires ecash sat stamps, which prevent spam and generate revenue for relay operators, enabling long-term operations. nostr:note16gv0dfkfaj2cvyujxlk9thckm4vy63r9vl0hpcn9473flca9qqqscm583q