How to select a crypto currency wallet
Blockstream Marketing Director: it's hard for Bitcoin to transact completely offline
It's a snapshot of the offline music scene, but it's enough to show how difficult the life of a music creator, especially an indie musician, can be!
With the DC/EP wallet private key, users can initiate inter-wallet transfer transactions. Even if dual offline payments are considered, these transactions are ultimately recorded by the PBGC in the DC/EP registry. The question is, which settlement method is used for DC/EP transactions? There are three possible scenarios
In the case of a traditional debit or credit card, any financial activity you make over the Internet is recorded in your "account". Stored on the card issuer's central computer or cloud server. There are no accounts on Bitcoin. Instead, funds (like bitcoins) are controlled by a pair of keys. Anyone can use a bitcoin wallet to generate a pair of keys, no personal information is required. Each person can hold as many key pairs as they want, and a group of people can share funds using a "multi-signature" wallet.
According to Bitcoin.com, software developer Tobias Ruck in October showed off a new software called Be.cash's offline Bitcoin Cash (BCH) wallet tool. This concept provides individuals with the ability to send and sign BCH transactions without Internet service
Thus, if the wallet detects that the carrier is offline, it will extract your coins and seamlessly switch to an on-chain wallet. ZK rollup in particular could theoretically allow withdrawal within minutes, even if the operator is not cooperating!
The wallet shall be synchronized with the central bank's digital currency registration system while online. The wallet shall always store up-to-date information on the UTXO of the tied user account, so that this information can be used offline to initiate transactions. and the submission of signed transaction messages in offline status to the central bank's digital currency registry system
While enabling trading is definitely a good place to start, if you're going to invest in Bitcoin for the long term, it's best to keep your funds in an offline wallet! . Some people prefer the touchscreen product Trezor, while others prefer the Ledger
Therefore, how to make bitcoin assets accessible to new innovative user scenarios, to new user profiles, and to new ways of using bitcoin assets through cross-chain technology? Technical capabilities (e.g., smart contract capabilities, interoperability, etc.) have been an important area of product innovation exploration in the industry.
In the patent for the digital currency system, a solution for dual offline payments is mentioned. For example, user A has D100 in his e-wallet, now user A and B, both offline, need to pay D100 to User B
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