Bitcoin is showing signs of life, but only a break above key resistance at $6,675 would confirm a bullish reversal, technical charts indicate.

At press time, the leading cryptocurrency is changing hands at $6,470 on Bitfinex – up 10 percent from the 6.5-week low of $5,859 hit on Aug. 14.

However, the break below the key support of $6,000 (February low) was short-lived and prices moved back above $6,100 by UTC close, signaling bearish exhaustion.

More importantly, the follow-through has been positive: BTC crossed Tuesday's high of $6,259 and jumped to $6,649 yesterday, confirming that sellers have likely run dry and bargain hunters are finding the current price too attractive to pass up.

Hence, it seems safe to say that a bullish trend reversal is in progress and would be confirmed if prices take out the inverse head-and-shoulders neckline resistance of $6,675, as seen in the chart below.

BTC is creating the right shoulder of a inverse head-and-shoulders bullish reversal pattern on the hourly chart.

A move above $6,675 would confirm the sell-off from the July high of $8,507 has ended and would open the doors to $7,490 (target as per the measured height method).

That said, the daily and the 4-hour charts show that BTC could attempt a break above $6,675 in the next 24 hours.

As seen in the chart above, the cryptocurrency has pierced the descending trendline, meaning the sell-off from the high of $8,507 has ended. The relative strength index (RSI) has also adopted a bullish bias (above 50.00).

BTC created a bullish inverted hammer candle yesterday, adding credence to Tuesday's long-tailed (bear exhaustion) candle and confirming the cryptocurrency has likely bottomed out at $5,859.

Disclosure: The author holds no cryptocurrency assets at the time of writing.

Bitcoin image via Shutterstock; Charts by Trading View