The　idea　of　a　shared　economy　becomes　one　of　the　companies　as　an　enterprise　type.　Especially　with　the　advanced　development　of　digital　smart　devices　and　the　internet,　several　forms　of　the　mutual　economy　have　been　advanced　in　accord　with　the　need　for　sharing　of　separate　income.　Shareable　commodity　and　digital　content　are　also　seeking　to　utilize.　When　digital　content　is　used　as　a　sharing　economy,　various　possible　threats　may　arise　in　the　course　of　transactions,　the　potential　for　theft,　alteration,　and　hacking　of　contents.　This　paper　presents　a　comprehensive　overview　of　the　security　and　privacy　of　Blockchain.　Blockchain　promise　transparent,　tamper-proof　and　secure　systems　that　can　enable　novel　solutions,　especially　when　combined　with　smart　contracts.　In　this　research,　we　proposed　a　content　protection　and　transaction　method　using　Blockchain　Ethereum　Technology.　The　encryption　algorithm　is　incorporated　in　proposed　system　to　make　transparent　transactions　and　it　is　also　implemented　on　content　itself　to　prevent　from　smart　forgery　and　hacking.　The　experimental　results　signify　that　the　proposed　method　has　strong　potential　to　enhance　transactions　transparency　by　minimizing　the　security　threats　in　digital　content　transactions.