Hamon too close to edge?

[Jpgied]

After a few failed attempts and broken blades, I'm finally getting a hamon to show up. This one, however, ended up reaching almost all the way to the edge. I'm wondering if this blade is now just better used as a letter opener or something. At what point in the hamon does the steel lose its hardness? I'll try to post a link to a picture. Thanks.
https://drive.google.com/file/d/1ZITCP3SiWFW6rXGPzxd9LIOUvh96Uotc/view?usp=drivesdk

 

[Willie71]

The edge looks fully hardened on that one. It’s not ideal, and esthetically would look better a bit higher up, but that should be a serviceable blade. 1/3 hardened is what many, if not most consider ideal.

 

[Hengelo_77]

 

[Stacy E. Apelt - Bladesmith]

Personally, I would re-do the HT and try to get the hardening line much higher. As Willie said, about 1/3 the way up the blade and fairly even as it goes down the blade.

 

[kuraki]

I would redo it as well. Rather than calling it a letter opener given the amount of work you put into it already it's easy enough to just do over. Shoot for 36.25% of the blade to be hardened before the hamon begins.

 

[Jpgied]

Thanks guys, looks like I'll be redoing it!