# Coinkite Inc.

> Coinkite is a Canadian Bitcoin security and hardware company established in 2012. Coinkite makes COLDCARD, OPENDIME, BLOCKCLOCK, SATSCARD, TAPSIGNER, SATSCHIP, SEEDPLATE, and other Bitcoin self-custody tools.

## Company facts

- Official website: https://coinkite.com
- Store: https://store.coinkite.com
- Blog: https://blog.coinkite.com
- X/Twitter: https://x.com/Coinkite
- GitHub: https://github.com/coinkite
- Location: Canada
- Founded: 2012
- Tagline: Don't Trust–Verify

## Primary products

- [COLDCARD](https://coldcard.com): Bitcoin-only hardware wallet line for offline private-key storage and transaction signing.
- [COLDCARD Q](https://coldcard.com/q): COLDCARD hardware wallet with QWERTY keyboard, larger screen, QR scanner, and air-gapped workflows.
- [OPENDIME](https://opendime.com): USB-based physical Bitcoin bearer instrument designed to be passed person-to-person.
- [TAPSIGNER](https://tapsigner.com): NFC card that stores a Bitcoin private key and signs mobile wallet transactions by tap.
- [SATSCARD](https://satscard.com): Reusable NFC card for gifting, receiving, and passing Bitcoin.
- [SATSCHIP](https://satschip.com): Embeddable NFC chip for Bitcoin authentication and artwork.
- [BLOCKCLOCK mini](https://blockclockmini.com): Bitcoin data display device for block height, price, Opendime balance display, and related Bitcoin data.
- [SEEDPLATE](https://bitcoinseedbackup.com): Steel backup plate for Bitcoin seed phrases.
- [COLDPOWER](http://usbcoldpower.com): 9-volt-battery USB power adapter for COLDCARD and other low-power USB devices.
- [CKBunker](https://ckbunker.com): Python software for operating COLDCARD in HSM mode.

## Coinkite websites and projects

- [OpResearch](https://coinkite.com/opresearch): Coinkite research and open projects for the Bitcoin community.
- [BitcoinTreasuries.net](https://bitcointreasuries.net): Aggregated list of companies, governments, funds, ETFs, and other entities holding bitcoin.
- [Bitcoin.holiday](https://bitcoin.holiday): Calendar of important Bitcoin dates.
- [BitcoinMemes.info](https://bitcoinmemes.info): Bitcoin meme archive.
- [Bitcoin.review](https://bitcoin.review): Bitcoin community updates and commentary.
- [BitcoinBounties.org](https://bitcoinbounties.org): Bitcoin project bounty list.
- [BitcoinBinary.org](https://bitcoinbinary.org): Reproducible build proofs for Bitcoin projects.
- [Blockwatch.live](https://blockwatch.live): Bitcoin price, block, and OPENDIME display project.
- [BitcoinBlackFriday.org](https://bitcoinblackfriday.org): Bitcoin Black Friday deals list.
- [BinaryWatch.org](https://binarywatch.org): Public Bitcoin binary verification and change tracking.
- [Checkmsg.org](https://checkmsg.org): Bitcoin signed-message validator.

## Site resources

- [Careers](https://coinkite.com/careers)
- [Resellers](https://coinkite.com/resellers)
- [Media Kit](https://coinkite.com/media-kit)
- [Privacy Policy](https://coinkite.com/privacy)
- [Terms of Sale](https://coinkite.com/terms)
- [Terms of Use](https://coinkite.com/terms-of-use)
- [Responsible Disclosure](https://coinkite.com/responsible-disclosure)
- [Bitcoin White Paper PDF](https://coinkite.com/bitcoin.pdf)