Puzzle 64 is between --keyspace D450000000000000:D46fffffffffffff Let's see who solve it first..
Range completed with --stride 1111
Proof of work
16jY7qLJ7nCjNCw3vnHjsNZbswAWbjgJRE D451B2D7C5C1F338
16jY7qLJ3Dvbu1wTLpuTqpNpmeoyZu6edt D4532C684B1A0377
16jY7qLJnByZxp2wFGigyn18Q1H53TTmVa D4538334E25AE667
16jY7qLJqUPuYXpH2sG2RDLs7bkxQ8PeEJ D457720CFE8EF9B9
16jY7qLJmL7ASHkjmYxyeocgsyCGF7dLuG D4590E552E66414D
16jY7qLJX52y1TU63G3dZENuZdfbhQNMtp D45B9DA6D0CCA91C
16jY7qLJWAAv5RTtZ3RzgazoiS8hEV1sAX D463D679528F8815
16jY7qLJU8XxLVq2BM2bHBEe5vwr4Pffuc D46458AB1B9F130B
16jY7qLJHSatNNrmU6m3MRJEPuN7RiJaV7 D46B91712BD763C2
16jY7qLJQ1m34R4YBGRWRdGTdABEcyLE65 D46BE3E6992BFEC5
Next --stride 12345
I search a lot with prefix like this but can not find any pattern vanity 16jY7qLJ