Qtum Completes First Atomic Swap With Bitcoin on Mainnet


Qtum, a blockchain platform that merges the power of Bitcoin’s blockchain with the Ethereum Digital Machine to construct decentralized purposes, has accomplished its first atomic swap with Bitcoin on mainnet.

This can be a large, first step for atomic swaps, a function that enables for on-chain exchanges, or transactions, between cryptocurrencies on two separate blockchains with out the necessity to depend on a 3rd occasion. For Bitcoin, this can be a large step ahead in permitting interoperability between different blockchains and itself in a trustless method.

Atomic swaps will not be a completely new function, as Bitcoin Journal has reported on a Lightning Network ERC-20 swap with bitcoin only a few months in the past.

In accordance with Qtum’s blog post, the primary resolution that makes atomic cross-chain swaps attainable is Hash Time-Locked Contracts, or HTLC. In a short abstract, HTLC basically locks up the funds in a transaction for sufficient time in order that each blockchains are capable of verify the switch of funds on their very own (by way of block confirmations) and provides each events time to assert their funds. If sufficient time passes the place one facet has not claimed their funds, every thing is returned again to the unique events.

Your complete means of the atomic swap is described within the weblog put up as follows:

  • Alice initiates a transaction on Qtum which comprises a time-locked contract and transfers QTUM to Bob.
  • Bob audits the transaction.
  • If the transaction is accredited, Bob participates in the same transaction on Bitcoin which pays BTC to Alice.
  • Alice audits the transaction.
  • If the transaction is accredited, Alice redeems BTC from it.
  • Bob extracts a secret from the redeeming transaction.
  • Bob redeems QTUM from the preliminary transaction.
  • If the time specified within the time lock is reached and Bob has not redeemed the token, Alice can refund the token.

Within the final 12 months, Qtum has made significant leaps forward in creating its blockchain for better adoption and interoperability as effectively. Atomic swaps are simply the following step.They're additionally a crucial, next-step function for interoperability with the Lightning Community.

Why Are Atomic Swaps Essential?

Atomic swaps clear up an enormous downside in cryptocurrency, which is the lack to straight alternate two various kinds of currencies with one another with out having to depend on a trusted third occasion like an alternate or firm.

In a gift instance, let’s say Alice needs to purchase a digital collectible from Bob, and there's no approach to commerce in individual. If Alice needs to ship cash to Bob for a collectible, Bob may simply obtain the funds and never ship the collectible in return. Additionally, the other may occur, the place Bob sends the collectible first and Alice by no means sends the cash in alternate.

The issue within the current instance is the issue of belief. When belief is factored into the chance of exchanging issues on-line, it turns into far more dangerous. Atomic swaps are an answer to this downside, as described above, as a result of they permit funds to be exchanged between events with out having to depend on something however arithmetic to make sure the method has been accomplished easily.

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