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Ben DiFrancesco
https://etherscan.io/address/0xe3870569f9e1836960bf30b5a45fc743cef0ab0e#code
Proposal from ScopeLift to build this for $1,500 - $2,250 based on similar projects.
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Requires EOSIO 2.X, EOS-ETH bridge not yet in mainnet
See LiquidApps / Alien Teleport Token Wrapping detailed analysis
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Band Protocol
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Wrapping Wiki: FIO Token and Domain NFT wrapping
Tasks
Components
Getting data
Hyperion
Geth
Consensus
TBD: 7 oracles?
TBD: on chain?
TBD: p2p component?
Transactions
Dependency on interface definition from FIO/Ethereum contracts
TBD: What is a valid transaction?
Governance?
Signing?
Data Flow Diagram
(Not all functionality here will be in MVP.)
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Research
etc.
Third-party applications
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Technology
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Overview
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Notes
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See Other Options Considered section on wiki page
Overview
Oracles will:
On the FIO Chain
Monitor specific account by inspecting every block and looking for wraptokens action
MINT WFIO ERC-20 token to the designated account
On the Ethereum Chain
Monitor Ethereum smart contract for inbound transfers of ERC-20 WFIO
Burn the inbound WFIO
Transfer FIO to the designated account
Oracle code will be run by designated FIO Chain BPs with access to:
Wrap
See the following page for an overview of the Wrap use case: Wrap
Once Oracles detect that a user on FIO Chain wants to wrap FIO Tokens, they will submit their observation to this Ethereum smart contract.
Once all Oracles have submitted their observation, the wrapped FIO Tokens will be minted and transferred to designated Ethereum public address.
Unwrap
See the following page for an overview of the Unwrap use case: Unwrap
Once Oracles detect that a user on wants to unwrap WFIO Tokens, they will submit their observation to this FIO smart contract.
Once all Oracles have submitted their observation, the wrapped FIO Tokens will be transferred to the designated FIO Address
Possible exceptions
FIO Chain
Chain passed to wrapdomain or wraptokens actions is not Ethereum (this restriction is not enforced on the FIO Chain level to allow for wrapping chain expansion without deployment of code)
Oracles can trigger unwrapdomain or unwraptokens actions to originating address
Public address passed to wrapdomain or wraptokens actions is not a valid Ethereum address (this restriction is not enforced on the FIO Chain level to allow for wrapping chain expansion without deployment of code)
Oracles can trigger unwrapdomain or unwraptokens actions to originating address
Ethereum Chain
FIO Address passed in with ERC-20 is not valid or does not exist
Oracles can trigger a refund deducting amount to cover gas
FIO Address passed in with ERC-721 is not valid or does not exist
Oracle can at their discretion trigger a refund or manually resolve the issue with sender
Oracle Components
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