Mercury Pockets Overview: Bitcoin pockets with Layer 2 scaling and improved privateness

by Cryptospacey

It’s generally believed that Bitcoin is likely one of the most non-public strategies to ship cash and that funds are hid someplace within the blockchain. The actual fact is that utilizing Bitcoin to make a fee is probably the most seen methodology to take action. Not like a standard financial institution, the place your information is non-public, each Bitcoin transaction is recorded within the blockchain, a public ledger.

Mercury Pockets is likely one of the most up-to-date Bitcoin wallets. It employs the notion of statechains and is predicated on the brand new Bitcoin layer-2 scaling expertise.

Consequently, the pockets could settle for BTC deposits (UTXOs) with out incurring any transaction charges. As a result of the monies are safely moved between homeowners with out the necessity for an on-chain transaction.

As a consequence, because the proprietor, it is possible for you to to rapidly switch full custody of a Bitcoin quantity to anyone. This improves privateness and eliminates miner prices.

Mercury pockets makes use of the unspent transaction output (UTXO) mannequin, which is the underlying merchandise that establishes worth and possession in a cryptocurrency like Bitcoin. A transaction ID, or TxID, and an output index quantity, or n, are used to establish the UTXO.

The pockets additionally employs a brand new expertise generally known as statechains, a Layer 2 scaling answer for Bitcoin. Statechains are cryptographic frameworks made up of a sequence of digital signatures that cross possession of a statecoin from one proprietor to the subsequent. Statechains, just like the blockchain, can’t be modified or altered, and it serves as proof that the statecoin has not been used twice.

Statechains as a Layer 2 different scaling answer for Bitcoin

The first aim of statechains is scalability. Customers could use the Mercury Pockets to entry this layer. Customers could create statechains and conduct statechain transactions right here.

Let’s take a more in-depth take a look at statechains, the structure that enables for these new non-public transactions. The quantity of house accessible for Bitcoin transactions on the blockchain is kind of restricted. If bitcoin lovers need digital cash to be accessible to as many individuals as attainable, they have to discover a strategy to circumvent this restriction.

mercury wallet statecoins
Statecoins are a part of the Statechain structure

The Lightning community is probably the most broadly used approach for scaling Bitcoin transactions for the time being. Lightning permits customers to carry out protected transactions with out utilizing any block house, leading to faster and cheaper transactions. Statechains are equal on this regard.

Statechains, just like the Lightning community, depend on multi-signature transactions, which want many customers to log out on a transaction earlier than it may be carried out. Within the case of statechains, two out of each two non-public keys should log out. The consumer has one key, whereas the statechain supplier has one other.

To switch money, the consumer simply transmits the receiver the non-public key. Sending your non-public key to somebody is nearly all the time a components for having your whole cash stolen. Nevertheless, the statechain supplier is meant to have the consumer’s again and stop this from taking place.

Let’s examine and distinction the Lightning community with statechains because the Lightning community is extra well-known.

Customers of the Statechain don’t have to fret about routing or liquidity difficulties as Lightning customers do. The non-public secret’s simply transferred to a different proprietor utilizing statechains.

Not like Lightning, there’s no requirement for a fee to go throughout a community, subsequently there’s no probability of the transaction failing if one of many community’s hops is brief on money. Though intelligent new applied sciences have sprung up within the hopes of constructing this difficulty extra bearable, liquidity is probably the most important issue Lightning customers face at present. Direct statechain transactions are subsequently preferable for larger funds when routing may be troublesome.

Privateness by way of off-chain transactions, Bitcoin swaps and personal key swaps

Mercury Pockets lets customers ship and obtain off-chain transactions, in addition to change their Bitcoin transaction historical past with different Mercury customers by swapping non-public keys. The goal is to offer a means for customers to hold out Bitcoin transactions with the identical quantity of privateness that you’d have with a money transaction.

You possibly can make the most of swapping to extend your privateness because the pockets permits you to swap statecoins with different nameless customers utilizing a blinded swap mechanism. To swap with different Mercury customers, you could first verify that they want to commerce the identical quantity of Bitcoin as you. Mercury has devised the idea of a state coin to deal with this difficulty. Like an precise coin or observe, it shops an actual amount of cash.

All you must do is be part of a swap group by way of the Mercury swap conductor for the mercury pockets to robotically carry out swaps with different nameless customers. As well as, the Mercury pockets supplies info on the privateness standing of every statecoin saved within the pockets.

To hitch a swap group, go to the pockets’s dashboard and click on on the Swap button, then Be a part of Group to swap statecoins with different Mercury pockets customers.

mercury swap - join group.
Click on “Be a part of Group” to swap statecoins with different Mercury customers

One other methodology is to click on auto swap on the coin and this can frequently preserve coming into the coin in swaps till both you permit the pockets otherwise you click on Go away Group. 

mercury auto swap
You possibly can robotically enter your statecoins into swaps with the auto swap function.

Mercury pockets makes use of a really simple mechanism to switch statecoins from one proprietor to a different. The statecoin receiver first creates a statecoin tackle utilizing a Bech32 encoded public key with a SC prefix.

The sender should enter the tackle into their pockets, which then works with the Mercury server to create an encrypted switch message.

A signed backup transaction and a blinded key switch worth are included within the switch message. After the receiver confirms the switch message of their pockets, the server completes the transaction.

Additionally up to date is the non-public key sharing. Consequently, signing official transactions with the server is proscribed to the receiver’s new non-public key share. The previous proprietor’s non-public keys are additionally rendered ineffective.


Mercury Pockets makes use of a novel expertise to scale Bitcoin transactions while additionally rising privateness for its customers. Off-chain transactions and safe non-public key swaps are among the options that actually make this pockets stand out.

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