Determine whether numeric values are JSON numbers in the CDXJ index

[extua]

The example CDXJ record in section 8 of the CDXJ spec shows offset, length, and status values without quotes, which would cause them to be parsed as numbers.

{
  "offset": 283,
  "length": 2269,
  "status": 200,
}

I noticed yesterday that the example record produced by CDXJ indexer quotes the offset, length, and status values, which would cause them to be parsed as strings.

{
  "offset": "771",
  "length": "1219",
  "status": "200",
}

Following the example in the spec, these values should be parsed as numbers.
However, the spec is not explicit about whether or not that should be the case.

There might be a case for HTTP status codes being coded as strings, as each code has semantic value.