crypto on Nostr: What is amethyst?

{ "id": "e7f3a491343e94ee1c07c8492437e710cb92c9e82554aa1c364a4aec15225c9e", "pubkey": "3c2584f6bc370d6eab4129870df0bf7761eeebd2f627687fe64a7e0bbfcd120d", "created_at": 1687073427, "kind": 1, "tags": [ [ "e", "17b7f617996b054ccf4fc59e52514caf58f602c7b5f6ea7ff3b822b2a245133f" ], [ "p", "82bdee506e769ebc94ee2f362d07c1960dce40bac650d826a42f8e0c019c3c96" ] ], "content": "What is amethyst?", "sig": "b2a27f80e3b6e1d1cfda4644d018d77fe86419c2f3934abb390f9ef96359265fa04a90018a8a208d4959754f890d37756671e9ba7c44fb094880c46f6dfd5dc2" }