nostr:npub1u3ctet2xdc8fcm9m2w8atnkwf8z9cu4h32zue9g9vyytp69ww0gs3903c3 produces high-quality bitcoin heaters that both heat your home and reward you with bitcoin — a true win-win.

You may think that mining is only for professionals and no longer makes sense for individuals. But everyone needs heat in their homes, and most people in Norway use electricity for heating.

So why not use a purpose-built bitcoin heater like Hive Zero for heating?

Check out their website:

http://cyberhive.no

CyberHive’s goal is a more decentralized Bitcoin network through bitcoin mining in every home, and to contribute as much as possible to this peaceful revolution.

When we told them about our Advent calendar, they liked the idea so much that they decided to give away a stack of bitcoin books they had in storage.

One lucky winner will get to choose 5 books, and we’ll also draw a second-place winner who will receive 3 books as a consolation prize.

How to participate:

1. Follow nostr:nprofile1qqsrg5ccx8jm03h3tudnp886sjmlp04r4xu22yqpz8n2caadma4c63spzfmhxue69uhhqatjwpkx2urpvuhx2ucpzdmhxue69uhk66tnwd4k27fwxq6zuumfrqa8ua and nostr:npub1u3ctet2xdc8fcm9m2w8atnkwf8z9cu4h32zue9g9vyytp69ww0gs3903c3

2. Like and repost this post

3. Answer the following question:

How many different products are sold in CyberHive’s online store?

PS: this competition is run both on X and on Nostr, and the winners will be picked randomly out of those either correct answers (or closest to) to the question.

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(We’re marking today’s door as an advertisement to be on the safe side, as the undersigned

( nostr:nprofile1qqsf88lmfe2ja4wqlfuqnpdtw93lgstessy6ulkcr33vq7kydqa5ygspz3mhxue69uhhyetvv9ujuerpd46hxtnfduq3qamnwvaz7tmwdaehgu3wd3skueqcdhlc4 ) recently received a discount when purchasing a Hive Zero V2.)