This NIP defines a mechanism for clients to attach ecash tokens (Cashu) to Nostr events as stamps — anonymous per-event micropayments to relays. Stamps solve two fundamental problems for the Nostr relay ecosystem: spam prevention and relay sustainability.

GitHub

keychat-protocol/nips/nip-estamp.md at main · keychat-io/keychat-protocol

Protocol specifications for the Keychat ecosystem. Contribute to keychat-io/keychat-protocol development by creating an account on GitHub.