> do not honor their engagements (a la FTX, for example, by not actually having the stock and trying to procure it later when needed). how blockchain would blo

> do not honor their engagements (a la FTX, for example, by not actually having the stock and trying to procure it later when needed). how blockchain would block theft without blocking valid transfer? This requires checking real-world data so all blockchain stuff does not help at all. (the same transfer may be considered as valid or as a theft by different groups of people! See various stories about evacuated gold reserves of countries that were taken over.)