Example:

• https://live.blockcypher.com/btc/tx/168886622efc7f3539717d851d670b144a183adcf7e8352c7993c3416f7a8e51 <– Shows "confirmed"

• https://blockchain.info/tx/168886622efc7f3539717d851d670b144a183adcf7e8352c7993c3416f7a8e51 <— Erroneously shows transaction as "unconfirmed". [Update: Intermittently can sometimes show confirmed. Hit reload, state may change to Unconfirmed.]

This is a recurring problem for that Blockchain explorer service.

• https://np.reddit.com/r/Bitcoin/comments/5rvy4u

The problem with this is people aren't seeing their transactions confirm and conclude that the Bitcoin network is "slow" as a result. The problem in some instances is actually just that the Blockchain viewer they are using is reporting false information.

There are a number of blockchain explorers available: https://en.bitcoin.it/wiki/Category:Block_chain_browsers

Some of the most widely used / useful:

• https://live.blockcypher.com
• https://smartbit.com.au
• https://blockexplorer.com
• https://btc.blockr.io
• https://www.blocktrail.com/BTC