Page Comparison

wrapnft

mint to account with oracle approvals

unwrapnft

burn (called by user)

burnnft

oracles can burn nft by consensus

regoracle

register oracle

unregoracle

unregister oracle

regcust

register custodian

unregcust

unregister custodian

listDomainsOfOwner

Returns list of tokenIds owned by the provided ethereum account

getOracle

Get oracle status by ethereum account

getCustodian

Get custodian status by ethereum account

getApproval

getApproval status by indexhash. This is emitted in consensus_activity event after a successful approval has been executed.

tokenURI

retrieve JSON information about NFT

setBaseURI

Change the baseURI path (custodian only)

_baseURI

Retrieve baseURI path (used as first portion of tokenURI)

Max transaction size

Should we put a max transaction size limit on mint into the ERC721 contract.

Not needed

ERC721 contract key

What is the status of the key used to set the contract?

Key should only be used for spinning up the contract and should be burned.

Oracle “Admin” functions

Do we need to enable the ability for Oracles to call various contract actions such as approve, transfer, mint, etc.

This can be performed in a couple of ways:
1 - The Oracles vote in who can execute the next essential action as follows:
Oracle 1 executes wrap action to mint using FIO obtid xxxxxxxx
Oracle 2 wrap action to transfer for the same FIO obtid to Alice
Oracle 3 executes wrap action for mint, but wrong recipient is provided. Trx goes to Alice defined by oracle 1 and 2

2 - The Oracles can sign the next transfer action as a multisig
This could be quite costly on the ethereum chain, but is possible to implement.
Example of multisig on ethereum https://github.com/christianlundkvist/simple-multisig/blob/master/contracts/SimpleMultiSig.sol

Decision: We do not want any Oracle admin functions.

Custodian “Admin” functions

Are there contract actions that should be exposed to Custodian “admin” approval?

• Pause switch is an admin function.

• Use case: refunds. If someone calls unwrap to the wrong address and it gets lost. We may want to enable the ability for Custodians to call 2/3+1 approval for a “mint” refund.

  • This can already be done by the Oracles calling wrap to a specific Ethereum address.

TBD: Are there any other contract actions that might be used for “admin” functionality?

Unwrap fee

Is there a fee for unwrap?

Yes. Unwrapping user pays the gas fee

Invalid oracle

Oracle is not registered

400

"Oracle not registered"

No authority

The signer is not a registered Custodian and does not have authority to call this function

403

"AccessControl: account [user account] is missing role [role hash]"

Already approved

Oracle address tries to approve a wrap multiple times

400

“sender has already approved this hash”

Already complete

Oracle tries to approve a wrap that has already been completed

400

“Approval already complete”

Approver must execute

Oracle tries to execute wrap it didn’t approve

400

“An approver must execute”

Invalid account

Ethereum account is not valid

400

“Invalid account”

No Minimum 3 oracles are registeredrequired

Trying to unregister an oracle when none there are only 3 registered anymore

400

“No “Minimum 3 oracles remaining”required”