Roth IRA distribution - digital asset cost basis
If a distribution is taken from a self directed Roth IRA of a pre-launch digital asset (that is, a pre-ICO rights certificate, for a cryptocurrency token which is not yet publicly traded), what determines the cost basis for that asset, for future purposes?
Scenario 1:
If the asset has not yet launched and not yet publicly tradable at the time of the distribution? (At which time the custodian signs off that they no longer hold it.)
Would the future cost basis be the cost at which it was purchased (that is, for rights agreements that were purchased), or granted (that is, for rights agreements that were granted free, that is, $0)?
Scenario 2:
If the asset has launched and starts to trade but the distribution from the Roth IRA of the rights certificate is taken after the asset has launched and is trading.
Would the future cost basis be the cost of purchase, or $0 if received free, or, some other method that determines a market value of the token being traded if the rights certificate were redeemed for the tradable token?