Great question! The short answer is no.
However, FROSTR is a very interesting way to have multi-sig for Nostr signing. However, each key shard is still kept hot. These are not child-keys so much as portions of a full key that are split apart so that it takes a quorum of the parts in order to sign.
This is being used in Njump's new onboarding tool announced here:
nostr:nostr:nevent1qvzqqqqqqypzq77777lz9hvwt86xqrsyf2jn588ewk5aclf8mavr80rhmduy5kq9qqsqqqp70h0sxn3mlradqmzv585t9ape055wyj2uutqqs6q42zzdggcz4xvrr
The way it is implemented, signing requests are sent to the key-shard custodians via NIP-46 and are automatically approved. Pretty cool idea, but not an answer to the key management problem entirely.
Dikaios1517
npub1ku…v3lhe
2025-01-17 01:22:46
in reply to nevent1q…uqt5
Author Public Key
npub1kun5628raxpm7usdkj62z2337hr77f3ryrg9cf0vjpyf4jvk9r9smv3lhePublished at
2025-01-17 01:22:46Event JSON
{
"id": "9864c6862ceadce122ca91a19cbfcfbb41ff83ded6bface431d94e633eb432b0",
"pubkey": "b7274d28e3e983bf720db4b4a12a31f5c7ef262320d05c25ec90489ac99628cb",
"created_at": 1737076966,
"kind": 1,
"tags": [
[
"p",
"98e6b8c485244382ac339602a98f83c183820e15b8951579313585fa5c47db84",
"wss://nostr.bitcoiner.social/",
"kiwi"
],
[
"p",
"98e6b8c485244382ac339602a98f83c183820e15b8951579313585fa5c47db84",
"wss://relay.damus.io/",
"kiwi"
],
[
"e",
"b4752b94d34d771f031cbdfecf07bc424ed5d10630ea18d116ccd173bf41111d",
"wss://1.noztr.com/",
"root"
],
[
"e",
"6094b87f93b856fe2bd0877d70bfb9bbea69e58f2e518364d6846b4acca1c116",
"",
"mention"
],
[
"e",
"6970d8220a5d2374076d50a1514fa0dd125095954e1673a8b925b86606697db5",
"wss://nostr.bitcoiner.social/",
"reply",
"98e6b8c485244382ac339602a98f83c183820e15b8951579313585fa5c47db84"
],
[
"q",
"00003e7ddf034e3bf8fad06c4ca1e8b2f4397d28e2495ce2c00868155084d423",
""
]
],
"content": "Great question! The short answer is no.\n\nHowever, FROSTR is a very interesting way to have multi-sig for Nostr signing. However, each key shard is still kept hot. These are not child-keys so much as portions of a full key that are split apart so that it takes a quorum of the parts in order to sign.\n\nThis is being used in Njump's new onboarding tool announced here:\n\nnostr:nostr:nevent1qvzqqqqqqypzq77777lz9hvwt86xqrsyf2jn588ewk5aclf8mavr80rhmduy5kq9qqsqqqp70h0sxn3mlradqmzv585t9ape055wyj2uutqqs6q42zzdggcz4xvrr\n\nThe way it is implemented, signing requests are sent to the key-shard custodians via NIP-46 and are automatically approved. Pretty cool idea, but not an answer to the key management problem entirely.",
"sig": "0dd6a31b58a980667b4ba86901801ae3acdda58a484a10cc131b0c5a332718f84624e59e58fa4128db2137c2568e8b83fa5302623b00f34345ece93c70dfc9a7"
}