Proof of burn
Author reward 253.582 SBD, and 58.363 STEEM POWER for smooth/steem-experiment-burn-post-4
Sold 253.582 SBD for 277.237 STEEM on internal market
https://steemd.com/tx/3facb815099027d2b6c67b4c6cefb95ae18cdb93
Total burn of 58.363+277.237 = 335.600 STEEM
https://steemd.com/tx/0c399e04e4dab97685002fe3176a1f9927e4a5e6