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What is TAPSIGNER?

The TAPSIGNER is an elegantly designed NFC-enabled smart card that safely keeps your Bitcoin private key (XPRV) and facilitates effortless transaction signing by simply tapping it against your smartphone. With its verifiable entropy feature, you can confidently rely on the TAPSIGNER as the sole holder of your Bitcoin private key. This smart card can be easily backed up to a file, allowing it to function as a compact and portable Bitcoin wallet. Envision the convenience of having a Bitcoin private key in an easy-to-carry card format! By tapping the TAPSIGNER on your mobile device, you can sign transactions while your mobile wallet handles the majority of the processing, ensuring that sensitive information remains secure within the card. Serving as a hardware wallet, it can fit seamlessly into your everyday wallet, making it a highly practical security solution. The cost-effectiveness of the TAPSIGNER expands the availability of hardware wallet features and security measures for users around the world. Furthermore, it provides an excellent way to keep your private keys separate from other wallets, ensuring additional safety. With its card-like design, the TAPSIGNER is not just portable but also discreet, and it supports partially signed Bitcoin transactions (PSBTs) via HWI, significantly increasing its overall functionality for users. This innovative device combines convenience and security, making it an ideal choice for both novice and seasoned Bitcoin holders alike.

What is Opendime?

Opendime is a small USB device that allows you to utilize Bitcoin similarly to cash. It is straightforward to transfer to others, and by plugging it into any USB port, you can conveniently check the balance. At any time, the device can be unsealed for online transactions, which means you don't have to rely on anyone else's trust. Acting like a read-only USB stick, it works seamlessly with all computers, laptops, and smartphones. Inside the device, there is a QR code along with text files that detail your Bitcoin address and other pertinent information. When you hand an Opendime to someone, they can be confident that the funds cannot be reclaimed, as the private key is securely contained within the device itself. This key is generated internally and is completely unknown to anyone, including the original owner. This concept embodies the true nature of physical Bitcoin: simply give it away, and the recipient fully owns it. The device can be transferred multiple times, allowing transactions to occur as smoothly as a handshake. With no miner fees or delays in confirmation, Opendime facilitates effortless exchanges. As the Bitcoin ecosystem changes quickly, Opendime remains rooted in the fundamental principles of Bitcoin that have persisted for over five years, reinforcing its status as a dependable asset for digital currency enthusiasts. Additionally, its intuitive design makes it approachable for both beginners and experienced Bitcoin users alike, enhancing its appeal in the evolving digital landscape.

Media

Media

Integrations Supported

Bitcoin

Integrations Supported

Bitcoin

API Availability

API Availability

Pricing Information

$6.99 one-time payment

Pricing Information

$69 one-time payment

Supported Platforms

SaaS

Supported Platforms

SaaS

Customer Service / Support

Web-Based Support

Customer Service / Support

Web-Based Support

Training Options

Documentation Hub

Training Options

Documentation Hub

Company Facts

Organization Name

Coinkite

Date Founded

2012

Company Location

Canada

Company Website

tapsigner.com/start

Company Facts

Organization Name

Opendime

Company Location

United States

Company Website

opendime.com

Categories and Features

Cold Wallets

Not specified

Crypto Wallets

Not specified

Categories and Features

Cold Wallets

Not specified

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