This　paper　provides　an　in-depth　analysis　of　the　current　state　of　personal　information　storage　and　usage,　as　well　as　the　existing　issues　in　this　domain.　It　proposes　an　architecture　for　building　a　decentralized,　self-organizing,　and　scalable　personal　information　service　system.　By　improving　the　organization　of　the　blockchain　and　constructing　a　circular　access　structure,　the　storage　and　usage　of　personal　information　leverage　blockchain　technology　and　cryptographic　techniques　to　enhance　the　system＇s　availability　and　reliability.　The　article　elaborates　on　the　various　components　of　the　system　and　their　operational　mechanisms,　as　well　as　the　process　for　personal　information　query　and　authorization　for　use.　The　implementation　and　benchmarking　results　show　the　proposed　architecture　has　significant　performance　advantage　comparison　with　other　main　stream　blockchain　for　safe　date　exchange.　The　proposed　architecture　balances　the　use　of　personal　information　with　security　protection,　offering　a　standardized,　secure,　and　convenient　approach　for　personal　information　usage.　©　2023　IEEE.