One important element here is the domain rank of the respective platforms. Steemit.com is now more than four years old and also has received many more inbound links over that time. Steemit has massive DA and for a long time had a solid nofollow implementation. Steemit also always resisted implementing a fair canonical relation.
Hive for its part is a less than six months old URL and started out with a majority of content with canonical set to Steemit (or Steempeak). Because of that Hive is much less shown in the recently algo than Steemit and it will take longer for new content to climb to their eventual spot. (Pro tip: whenever launching a site, if possible first seed the URL for at least half a year with few related articles on it. This will massively help google's uptake of your new content when you eventually get started)
But it isn't all bad. In a very short time hive has received a reasonable amount of inbound links from crypto news outlets. The hive community is also more used to promote its content on twitter, which may result in additional "social signals" and "live traffic" google measures when assessing the credibility of any site.
But it will take a while before Google ranks our recent content as quickly as on Steemit. We just don’t have the domain history for that yet.
Yeah the DA ranking for steemit.com is 90, peakd and hive.blog at 36 when I checked yesterday.
canonical links are a part of peakd and hive.blog posts too, but because they have started together (while steemit.com was on it's own for a while), it's going to take a lot of effort to get them both rising up there.
This is a good point, we have started strongly on the Twitter front with Hive and there will be plenty of back-links from a strong DA site.
They count root domains, and so it's a case of linking our posts everywhere we can - pinterest and instagram even :)