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      "abstract": "Perkembangan teknologi informasi telah meningkatkan kebutuhan akan sistem \r\npencatatan kepemilikan surat berharga yang aman, transparan, dan efisien, karena\r\nsistem terpusat konvensional masih memiliki keterbatasan dalam hal integritas data,\r\ntransparansi, serta efisiensi transaksi yang berpotensi menimbulkan risiko manipulasi\r\ndan keterlambatan, sehingga penelitian ini bertujuan untuk mengembangkan sistem\r\nberbasis website bernama Blockchain Securities (BCS) yang memanfaatkan teknologi\r\nblockchain untuk mengatasi permasalahan tersebut dengan mengadopsi pendekatan\r\nhybrid yang menggabungkan kontrol terpusat dan validasi terdistribusi, di mana setiap\r\ntransaksi dicatat dalam blok dan diverifikasi oleh validator yang berwenang untuk\r\nmenjamin konsistensi data serta mencegah perubahan yang tidak sah, sementara\r\nmekanisme timestamp kriptografis diterapkan untuk menjaga urutan transaksi tetap\r\nakurat, dan hasil penelitian menunjukkan bahwa sistem BCS mampu mengelola serta\r\nmentransfer kepemilikan surat berharga secara aman, transparan, dan andal sehingga\r\ndapat menjadi solusi alternatif dalam mendukung transformasi digital pengelolaan surat\r\nberharga.",
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