Iver Pedersen's Marriage

I've found my g - g grandfather's marriage record in the Svatsum in Gausdal parish records, number 8 on the linked page. Would you please help me with the interpretation of what it means. I'm guessing that "Hoele" is a farm name. I'm not sure what the "687" means in the seventh column. Are witnesses in the fourth column and does it state any relationship? Here's the link: http://www.arkivverket.no/URN:NBN:no-a1450-kb20070201630662.jpg Thanks a lot for your help.('[:)]') Arden Anderson