Two things immediately spring to mind:
1. If it's valued in euro then the face value has to be in euro. You can't sell all 100k at same BTC price as if they don't sell quickly and the exchange-rate moves it would be impossible for you to honor the contract to investors who bought at different exchange-rates.
You misunderstand; the face value will always be 0.01 BTC. Originally it was my intention to cap any value increase at 50% but having modeled the situation it became apparent that since we intend to invest it in SHA256 mining hardware we will be generating more anyway; the bond will be repaid by the yield from those machines.
If difficulty is rising too fast then we will take the option to repay the bonds early. Even in my worst case scenarios we can repay the bond early. However, paying interest linked to might BTC would become too risky, hence the fixed-fiat yield.
However, you also assume that BTC will rise. Personally I think there is a fair chance it will crash again soon, in which case the bond holders would be in a better position in terms of yield than they would be if it were BTC-linked. Personally I see this feature as quite a nice bonus for the investor - their returns are stable regardless of BTC's price.
- An interest rate of ~22%/year (0.38%/week) based on EUR/BTC value at time of issue (eg. ~€0.0032 / bond / week).
- Bonds to be issued in tranches at discretion of CipherMine management; they shall only be issued if the management is satisfied that they can be repaid and that there is a useful way to spend them.
To clarify my point 2 above, the clash is between the two items quoted above.
If you sell the bonds in tranches then there'll be a different exchange-rate when each tranche is sold. You then can't honour the contract in respect of all tranches as there's no way to pay different amounts of interest to different tranches of bonds. Unless you wanted to pay 22% of of face value at the most beneficial (to bondholders) exchange-rate at which you'd ever sold bonds. That pretty much negates the whole point (for you) if exchange-rate moves significantly in EITHER direction between the placement of tranches (as, depending on direction of the move, you'd either have to pay new bondholders a far higher rate than you wanted or upgrade heavily the rate paid to existing ones).
I now see that I cannot differentiate between bonds in terms of issue either, a silly oversight. I could adjust the dividend yield as more bonds are issued, making it the average, but that would be complex and confusing for the investors. Alternatively it might be more sensible to issue the lot all at once and then just keep the BTC that we didn't need and take the hit on a slightly higher-than-necessary interest payment while we hold the funds. We can certainly afford to do this with minimal risk (ie. if we don't want to spend it all at once, just hold the BTC and pay the EUR interest).
This second approach would also support keeping the interest at a fiat-fixed rate. Editing the security now...
In that case my point 1 doesn't apply - though it then makes no sense as the interest would be based on BTC face value anyway (just with two currency conversions to get back to where you started from).
See above re. both points.
Kate.
EDIT: I've updated the security listing to address some of the issues raised.