Fron the whitepaper:

Augur

Augur is a hub for market making activity, giving ample focus to generating data and testing
prediction market theory in an applied setting but with a declaratively purist approach. For
example, Augur’s oracle system is completely decentralized which is fully aligned with the ideals of
a truly trustless and fair system. The trade-off of this approach is that events are slow (8 weeks) to
resolve and the feedback cycle for event participants becomes impractical for most mainstream
audiences looking for a viable investment channel.

Gnosis

Gnosis, on the other hand, positions itself as a platform for building decentralized prediction
market applications with focus on the production of actionable information. The project looks far
beyond the trade engine and the economy of prediction markets as a business, and declares a
mission of transforming the large set of prediction market data points into meaningful information
that can be utilized by human and AI decision-making agents. The end goal revolves around
knowledge - making it simpler and easier for users to gain insights into complex topics and make
more well-informed decisions. This focus opens up a diverse world of indirect applications for
prediction markets such as insurance and asset hedging.

Stox

Stox is designed, first and foremost, as a practical framework for mainstream investments in
prediction markets. Several key factors in its structure were put in place to accommodate proven
business practices in distribution and operation of prediction markets, for example:
• Smart contracts that process syndication fees, enabling incumbent marketing channels and
cross promotion of events between different providers;
• Smart contract support for promotional credit, enabling marketers to lock tokens for use with a
specific provider and limiting their lifetime;
• Capital requirements on operators are aligned with common regulator requirements for MSBs
and betting licenses;
• Quick event resolution, separate from dispute processing;
• A liquidity-sensitive market maker, curbing the operator’s need to predict amount of activity in
an event for determining the optimal market-maker deposit
The focus of Stox is to create a sustainable economy revolving around a functioning prediction
market where investors can find refuge from traditional financial instruments and participate in
prediction events with the purpose of making profit. Stox views prediction markets as a business,
where those who possess information of a greater quality and are able to make better informed
decisions can leverage this knowledge for personal material gain by investing STX in event
outcomes.

I hope there wont be any issue during hardfork scenario to transfer BTC during token sale

can anyone confirm me, if its safe to transfer during hardfork to Stox?