Comment by GeneThomas

>But that doesn't really justify the use of comma in numbers.

Readability.

>I was asking why that particular variant [of Base64] was used.

I repeat, we are using the ʀꜰᴄ 4648 variant.

> [separate standards documents] do you think that's also a no-go? Yes.

Data model here:

document := named-entity

named-entity := named-object | named-array | named-scalar

named-object := NamedObject(name, object)

named-array := NamedArray(name, array)

named-scalar := NamedScalar(name, scalar)

object := Object(id?, type?, field*)

array := Array(id?, type?, item*)

scalar := Scalar(id?, type?, value)

field := named-entity

item := object | array | scalar

name := CHAR+

id := CHAR+

type := CHAR+

value := CHAR*