I used this :)

DECLARE @json NVARCHAR(MAX)
SET @json = N'JSON HERE'

SELECT * FROM
OPENJSON ( @json )
WITH (
Timestamp varchar(200) '$.timestamp',
Curator varchar(200) '$.curator',
Author varchar(200) '$.author',
Amount int '$.int_amount',
Precision int '$.precision'
)

Then a little fiddling in excel.

Thanks for the link and encouragement :)