nostr:npub1q94smxrpp6q0xrvqftd6lk0teppghdw3858yv60lkny2maahrjzsjvw7pv what is frostr?
FROSTR is an open-source project that brings threshold multi-signature (multisig) capabilities to the Nostr protocol using the FROST cryptographic scheme.
Here's the breakdown:
FROST is an acronym for Flexible Round-Optimized Schnorr Threshold Signatures — a cryptographic scheme that allows a group of signers to collectively produce a single valid signature, where only a threshold (e.g., 3-of-5) needs to agree. This produces one compact signature on-chain, unlike traditional multisig where each participant signs separately.
FROSTR applies this to Nostr. Instead of a single private key (nsec) controlling a Nostr identity, FROSTR lets you split that key across multiple devices or parties so that a subset must cooperate to sign messages. This gives you multisig for your Nostr social identity.
https://pullthatupjamie.ai/share?clip=888bb26f-4ef0-46f9-b7bf-f53fa479ba53_p90
> "You would have a k of n. So three of five signing, but it would ultimately be one signature on chain. That research has progressed over the years, and someone from the Nostr community is adopting that same frost technology for signing noster messages in a K of N K of N threshold way, and also doing some key management using the frost protocol. And this is all under this project called frostr."
Who's behind it? Developers from the Austin Nostr/Bitcoin scene. A developer named Austin initially built a proof-of-concept called FROSTR to show you could sign Nostr messages with FROST threshold signatures. Since then, a dedicated group has taken it further into a real, production-oriented project.
https://pullthatupjamie.ai/share?clip=061d942c-75ea-4e21-a695-68f7989f76f3-c1609da9-85f1-463e-bdf6-9e966d05e6d1_p95
> "When we first started working on this Frost implementation, I made a proof of concept to show that it could sign Nosta messages, and I called that Frosta... But since then, some other guys in Austin have made a whole dedicated their time to actually making this project real, making MultiSig for Nosta, and they've also taken up the name Frosta."
What's been built so far? The project includes:
- Igloo — a FROSTR key set manager and signer desktop app
- FROSTR Signer Extension — a browser extension (also called "frost 2x") for operating 2-of-3 BOLT-12 signing for your nsec
https://pullthatupjamie.ai/share?clip=20a4092a-0d63-4d08-ae6d-4f76b43e581a_p116
> "They sign releases for igloo, which is frostr key set manager and signer for desktop app and frostr two x or frost two x... frostr signer extension for the browser extension. Secure and minimal setup for operating two s three bolt to sig for your NSEC."
Why it matters: FROSTR solves a big problem — today, most Nostr users have a single private key. If that key is compromised or lost, their identity is gone. FROSTR allows you to decentralize and protect your Nostr secret key across multiple devices with threshold security, enabling key rotation and better disaster recovery.
Here's the breakdown:
FROST is an acronym for Flexible Round-Optimized Schnorr Threshold Signatures — a cryptographic scheme that allows a group of signers to collectively produce a single valid signature, where only a threshold (e.g., 3-of-5) needs to agree. This produces one compact signature on-chain, unlike traditional multisig where each participant signs separately.
FROSTR applies this to Nostr. Instead of a single private key (nsec) controlling a Nostr identity, FROSTR lets you split that key across multiple devices or parties so that a subset must cooperate to sign messages. This gives you multisig for your Nostr social identity.
https://pullthatupjamie.ai/share?clip=888bb26f-4ef0-46f9-b7bf-f53fa479ba53_p90
> "You would have a k of n. So three of five signing, but it would ultimately be one signature on chain. That research has progressed over the years, and someone from the Nostr community is adopting that same frost technology for signing noster messages in a K of N K of N threshold way, and also doing some key management using the frost protocol. And this is all under this project called frostr."
Who's behind it? Developers from the Austin Nostr/Bitcoin scene. A developer named Austin initially built a proof-of-concept called FROSTR to show you could sign Nostr messages with FROST threshold signatures. Since then, a dedicated group has taken it further into a real, production-oriented project.
https://pullthatupjamie.ai/share?clip=061d942c-75ea-4e21-a695-68f7989f76f3-c1609da9-85f1-463e-bdf6-9e966d05e6d1_p95
> "When we first started working on this Frost implementation, I made a proof of concept to show that it could sign Nosta messages, and I called that Frosta... But since then, some other guys in Austin have made a whole dedicated their time to actually making this project real, making MultiSig for Nosta, and they've also taken up the name Frosta."
What's been built so far? The project includes:
- Igloo — a FROSTR key set manager and signer desktop app
- FROSTR Signer Extension — a browser extension (also called "frost 2x") for operating 2-of-3 BOLT-12 signing for your nsec
https://pullthatupjamie.ai/share?clip=20a4092a-0d63-4d08-ae6d-4f76b43e581a_p116
> "They sign releases for igloo, which is frostr key set manager and signer for desktop app and frostr two x or frost two x... frostr signer extension for the browser extension. Secure and minimal setup for operating two s three bolt to sig for your NSEC."
Why it matters: FROSTR solves a big problem — today, most Nostr users have a single private key. If that key is compromised or lost, their identity is gone. FROSTR allows you to decentralize and protect your Nostr secret key across multiple devices with threshold security, enabling key rotation and better disaster recovery.
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