This is the latest link from bitcoin..org.
https://bitcoin.org/en/alert/2017-07-12-potential-splitPlease remind your friends regarding this announcement,
especially those Minereum Traders at Livecoin and other sites.
Thanks.
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PreparationIf you accept bitcoins as payments, we recommend that you stop accepting Bitcoin payments at least 12 hours before Tue Aug 01 2017 08:00:00 GMT+0800 (China Standard Time), although 24 to 48 hours earlier may be safer. This will give time for all pending payments to confirm on the Bitcoin block chain before the event.
If you send bitcoins as payments, note that many services may stop accepting bitcoins at Tue Aug 01 2017 08:00:00 GMT+0800 (China Standard Time) or earlier.
Be wary of storing your bitcoins on an exchange or any service that doesn’t allow you to make a local backup copy of your private keys. If they accept transactions during the event, they could lose money and will likely spread those losses across all their users. If there end up being two or more competing versions of Bitcoin, then they may refuse to give you your bitcoins on versions they don’t like.
Bitcoin may experience significant price fluctuations in relation to other currencies. Learn more about price volatility and ensure you aren’t holding more bitcoin than you can afford to lose.
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During the eventDo not trust any payments you receive after Tue Aug 01 2017 08:00:00 GMT+0800 (China Standard Time) until the situation is resolved. No matter how many confirmations the new payment says it has, it can disappear from your wallet at any point up until the situation is resolved.
Try not to send any payments. During the event there may be two or more different types of bitcoin and you may send all of the different types to a recipient who only expects one type. This would benefit the recipient at your expense.
Be wary of offers to allow you to invest in the outcome of the event by “splitting” your coins. Some of these offers may be scams, and software claiming to split your coins can also steal them.
After the eventWe will update this section with more information after Tue Aug 01 2017 08:00:00 GMT+0800 (China Standard Time). Please monitor this page accordingly and wait until multiple news sources that you trust have stated that the event is resolved before returning to normal Bitcoin use.