lykke it architecture - ucl...
TRANSCRIPT
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Agenda
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What is Lykke?
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Vision
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Three fundamental components
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High-level architecture
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Issuance
Example
Digital asset is issued on the blockchain as Colored Coin (API/Web)
https://www.coinprism.info/asset/AXkedGbAH1XGDpAypVzA5eyjegX4FaCnvMhttps://www.coinprism.info/asset/AXkedGbAH1XGDpAypVzA5eyjegX4FaCnvMhttps://www.coinprism.info/asset/AXkedGbAH1XGDpAypVzA5eyjegX4FaCnvM
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Issuance Metadata defined in the JSON file protected by SSL certificate
Lykke Corp JSON example https://lykke.com/asset/LKK
{
"asset_ids": [ "AXkedGbAH1XGDpAypVzA5eyjegX4FaCnvM" ],
"contract_url": "https://lykke.com/Lykke_Corp_Placement_Memorandum.pdf",
"name_short": "Lykke",
"name": "Lykke Corp Equity",
"issuer": "Lykke Corp",
"description": "Lykke Corp is Swiss registered company that is crowd based at all levels. Lykke
shares are issued in the form of Colored Coins. Lykke builds a global marketplace for all asset
classes and financial instruments. Our marketplace will use the distributed ledger technology
pioneered by Bitcoin to offer immediate settlement and direct ownership.",
"description_mime": "text/x-markdown; charset=UTF-8",
"type": "Stock",
"divisibility": 6,
"link_to_website": true,
"icon_url": "https://www.lykke.com/img/coins/lykke-48.png",
"image_url": "https://www.lykke.com/img/coins/lykke-260.png",
"version": "1.0"
}
https://lykke.com/asset/LKKhttps://lykke.com/asset/LKK
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Memorandum Placement memorandum (Prospectus, Terms & Conditions)
Lykke Corp example https://lykke.com/Lykke_Corp_Placement_Memorandum.pdf
https://lykke.com/Lykke_Corp_Placement_Memorandum.pdf
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Real-time ownership structure
Ownership is automatically updated after confirmation of each transaction e.g. Lykke ownership https://www.coinprism.info/asset/AXkedGbAH1XGDpAypVzA5eyjegX4FaCnvM/owners
https://www.coinprism.info/asset/AXkedGbAH1XGDpAypVzA5eyjegX4FaCnvM/ownershttps://www.coinprism.info/asset/AXkedGbAH1XGDpAypVzA5eyjegX4FaCnvM/owners
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Dividends distribution
Dividends can be broadcasted in bitcoins or fiat colored coins (EUR, CHF, etc.)
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Lykke Wallet
https://itunes.apple.com/tt/app/lykke-wallet/id1112839581?mt=8https://play.google.com/store/apps/details?id=com.lykkex.LykkeWallet
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Multisignature wallets are used to deposit client’s coins. The exchange does not take possession of the traded coins.
2-of-2 Multisig address requires two signature to spend coins from it:
• Client’s signature
• Exchange signature
Exchange 2-of -2 Multisig wallet Client + Exchange
Client
MultiSig wallets
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MultiSig wallets advantages
MultiSig wallet provides the following advantages:
• Coins flow control – Exchange signature required for each transaction
• Client identification (KYC) – registered clients only are allowed to trade
• Coins safety – even if exchange is compromised clients will not lose their coins
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MultiSig wallets refunds
To guarantee funds recovery from the MultiSig wallet Exchange provides offchain «refund transaction»
Exchange 2-of -2 Multisig wallet Client + Exchange
Client
Refund Offchain transaction
nLockTime=31d
Refund transaction can be broadcasted after 31 days
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DVP atomic transactions are used to swap assets between peers
Alice’s wallet Bob’s wallet
USD EUR
USD EUR
There are two signatures are required to broadcast the atomic swap transaction on the bitcoin blockchain
Atomic swap transaction
Colored Coins Settlement
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Guaranteed delivery-vs-payment transactions
Transactions are settled as atomic swaps on bitcoin blockchain. Settlement risk is zero. Cost is zero too. See LykkeX transaction log https://www.coinprism.info/address/anJBX5sKFK4vnbywKWE2NQa9xrvLJEqRAB2
https://www.coinprism.info/address/anJBX5sKFK4vnbywKWE2NQa9xrvLJEqRAB2
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Trading stat
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Trading stat
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Trading stat
22.5 min 2.5 hours 12 hours
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Outlook
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Outlook
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Outlook
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Conclusion