I guess Burnside could offer a list with the adresses of the SELLING holders at shutdown of BTC-TC. Everybody who is able to sign his adress would be able to redeem his Cipherbond stake. That would of course only be possible if Ciphermine is willing to dispossess the bonds owned by Deprived...
I'm skeptical these cipherbonds will ever be redeemable again anyway...
Kate and her company are not anonymous at all. They have to declare bankruptcy if they refuse to pay their debt.