Is there an idiomatic way to prove public key property, not just the release of coins?

Cryptocurrencies, such as Bitcoin, are not uncommon in the world that consumers may be asked to prove title to their personal keys or public addresses. However, traditional methods such as coin costs may not always be sufficient. In this article, we will examine the idiomatic ways to check the property of an extended public key without using coins.

What are the extended public keys?

Expanded public keys indicate any type of public key containing additional information exceeding the standard 32 bytes (256 -bit) associated with a regular public key. This can include a variety of identifiers such as account residue, operation ID or even IP addresses. While these advanced keys provide more flexibility and convenience, they also take on new security challenges.

Idiomatic Property verification methods

Here are some idiomatic ways to check the ownership of an advanced public key without the release of coins:

• Domain Name System (DNS) Post : If you have a website or online service linked to your private key, you can use DNS records to indicate that the owner’s identity is linked to this key. This approach does not require any cryptocurrency operations.

• These services allow users to search and confirm domain names, including those used for public keys.

• Openid Connect : Openid Connect (OIDC) is a standard identity layer that allows users to associate their public key to email. By email or user name. After checking the ownership rights via OIDC, you can create a safe link between your private key and related invoices information.

• bag-based inspection : The bag-based method involves the generation of your personal key digital fingerprints using a cryptographic algorithm like Sha-256 or Blake2b. This combined value can be used to verify the identity of the person with an extended public key.

Treatment as evidence

For methods that need to release coins, you can create surgery to prove title by creating a specific output with a large amount of cryptocurrency (eg 100 BTC or 10 million nubits). This approach is commonly used on decentralized finance (Defi) platforms such as Uniswap.

Here’s an example of how to make such an operation:

• Create a new copy of the contract using your public key.

• Set the Operation Output value and related gas limit.

• Include the required input addresses or parameters to meet the operations requirements.

• Follow the operation that will create a new block of blockchain.

Conclusion

While traditional methods, such as the release of coins, may be unsuitable for checking extended public keys without the use of coins, these idiomatic methods provide more flexibility and safety. Using DNS records, IP address verification, Openid Connect, Magnos approval or operation as evidence, you can ensure that your private key is linked to the associated identity while reducing the need for cryptocurrency costs.

Remember that these methods may have different levels of complexity and convenience, depending on the specific case of use. Be sure to carefully evaluate each method before choosing the right solution for your requirements.