Bitcoin technology company JAN3 has completed a $5 million seed round, led by FulgurVentures, with GrupoSalinas, Tether, Lightning Ventures, EastVentures, PlanBFund, BitcoinOpportunityFund and NYDIG participating. As part of the current seed round, JAN will allocate $1 million to build a bitcoin vault, including 12 BTC, with an average cost of $83,333.33 per BTC.