What about sorting the "checkpoint" rows in ascending order?

Blocks 36 and 38 are at the end, that looks weird



checkpoint =
000000000019d6689c085ae165831e934ff763ae46a2a6c172b3f1b60a8ce26f:0
checkpoint =
0000000069e244f73d78e8fd29ba2fd2ed618bd6fa2ee92559f542fdb26e7c1d:11111
..
checkpoint =
00000000000000004d9b4ef50f0f9d686fd69db2e03af35a100370c64632a983:295000
checkpoint =
000000000000000017a4b176294583519076f06cd2b5e4ef139dada8d44838d8:330791
checkpoint =
000000000000000017522241d7afd686bb2315930fc1121861c9abf52e8c37f1:337459
checkpoint =
0000000000000000086672a8c97ad666f89cf04736951791150015419810d586:36
checkpoint =
0000000000000000006166e421051bd1ccc2bf3b80ebd2ed20c71a2eecc10633:38