Ordinal Bounty 3
================

Criteria
--------

Ordinal bounty 3 has two parts, both of which are based on *ordinal names*.
Ordinal names are a modified base-26 encoding of ordinal numbers. To avoid
locking short names inside the unspendable genesis block coinbase reward,
ordinal names get *shorter* as the ordinal number gets *longer*. The name of
sat 0, the first sat to be mined is `nvtdijuwxlp` and the name of sat
2,099,999,997,689,999, the last sat to be mined, is `a`.

The bounty is open for submissions until block 840000—the first block after the
fourth halvening. Submissions included in block 840000 or later will not be
considered.

Both parts use [frequency.tsv](frequency.tsv), a list of words and the number
of times they occur in the [Google Books Ngram
dataset](http://storage.googleapis.com/books/ngrams/books/datasetsv2.html).
filtered to only include the names of sats which will have been mined by the
end of the submission period, that appear at least 5000 times in the corpus.

`frequency.tsv` is a file of tab-separated values. The first column is the