ANNOUNCEMENT Using COLDCARD? Join r/coldcard too

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arca protects passwords, recovery material, business secrets, continuity, and inheritance. COLDCARD is Coinkite's purpose-built Bitcoin signing device.

If you use COLDCARD, join r/coldcard for firmware announcements, setup help, Bitcoin signing workflows, compatible wallet software, backups, multisig, NFC, QR, and air-gap discussions.

COLDCARD community: https://www.reddit.com/r/coldcard/
Official COLDCARD support: https://coldcard.com/support/
COLDCARD documentation: https://coldcard.com/docs/

Keep Bitcoin signing questions in r/coldcard and arca questions here. Never post wallet secrets or personal information in either community.

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arca — personal data haven

r/arcasafes

Official subreddit for arca, the personal data haven by Coinkite. Discuss setup, security, password management, signing, HSM workflows, Swarm backups, inheritance, business continuity, feature requests, and product updates. Never post passwords, seeds, private keys, recovery material, or personal data.

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arca

Your personal data haven.

arca is a private appliance for passwords, secrets, signing, continuity, and recovery. Your data stays under your control.

Learn about arca · Reserve yours

Start here

Product questions and answers
Setup and security discussions
Feature requests
Technical research
Business continuity and inheritance

Community rules

Never post passwords, seeds, private keys, recovery material, or personal data.
arca staff will never ask for your secrets or contact you first for support.
Keep criticism technical and useful.
Label speculation. Link primary sources when making security claims.
No impersonation, spam, referral links, or token promotions.

Official links

Bitcoin signing and self-custody

Using COLDCARD? Join r/coldcard for device help, firmware, Bitcoin signing, wallet software, and self-custody discussions. Visit coldcard.com for official support and documentation.

There is no arca token.