952534 jk: 1d80 34e7 94
Block hash: 00000000000000000001e38b60386db26d4cb44dd85519fd1df6611ba3231d80

First two octets of jk are equal
to the last two octets of the
block hash.

Following two octets of jk are all
the 16 groups XORred together.

The last octet is a "visual checksum"
as in shortenedkode and anecdotalkode:

Zeroes are dots here.
See there are 4 all-zero
and 9 non-zero groups.
16 groups are all together.
The rest is easy. There are
exactly 16-9-4=3 mixed.

Those mixed you shall
see easily:

.... .... .... ....
...1 e38b 6.38 6db2
6d4c b44d d855 19fd
1df6 611b a323 1d8.