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I've known about BTC since 2012 - owned some, transacted with some, sold some, profited with some... but a +572.85% year-over-year appreciation versus the USD makes me pretty skeptical too.

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STEEM 0.30
TRX 0.26
JST 0.043
BTC 98956.35
ETH 3642.90
USDT 1.00
SBD 2.83