Here in Finland company called Sampo:
https://www.bloomberg.com/quote/SAMPO:FH inform share holders, that everyone have to change share certificates to digital ASAP or they will lose theys shares certificates. Basictly Sampo paper certificate is worthless today, if you didn't change it to digital. If I remember right Sampo give four month to ppl to "swap" paper certificate to digital and those certificate what ppl didin't change Sampo keep it by self. So, Sampo got 260Mil extra, because ppl didin't change they Sampo certificate from paper to digital and that how real life works with "swap".
On Whitecoin swap those coins what was not swapped got burned and destryed, but real life certifications in big corporates can have not swapped certificates, like they owned those. Like in case Sampo. If Whitecoin XWC work's like real corporation and keep unburned coins by it self... Huh, what you folk's start to write in these forums. I can only imagine.
Simple: watch your certifications and coins, that you cannot miss next certificate, coin swap in the future and keep your hardware in good shape and wallet.dat in many places before accident happend again.
Links to the Sampo certificate "swap" (mainly Finnish)
http://www.hs.fi/talous/art-2000005187897.htmlhttps://www.mtv.fi/uutiset/talous/artikkeli/sampo-siirtaa-vanhat-paperiosakkeet-yhtion-omistukseen-miljoonien-osakkeiden-omistajia-ei-loytynyt/6407776// oHFLip