Per Whale Alert, 5,000 BTC ($54,236,020 USD) were transferred from OKEx to an unknown address starting with 1HEWtV at 10:35:54 UTC on Sept. 16. The hash is 12faa9903a37943d01d2668d84007a6b1ebb20039e5535f752b79f96415b5b0a.