{"id":53,"date":"2025-08-02T16:40:58","date_gmt":"2025-08-02T16:40:58","guid":{"rendered":"https:\/\/learn.rantissi.my.id\/?p=53"},"modified":"2025-08-02T16:40:58","modified_gmt":"2025-08-02T16:40:58","slug":"cara-kerja-blockchain","status":"publish","type":"post","link":"https:\/\/learn.rantissi.my.id\/index.php\/2025\/08\/02\/cara-kerja-blockchain\/","title":{"rendered":"Cara Kerja Blockchain"},"content":{"rendered":"\n<h3 class=\"wp-block-heading\" id=\"struktur-blok-di-blockchain\">Struktur Blok di Blockchain<\/h3>\n\n\n\n<p>Satu&nbsp;<strong>blok<\/strong>&nbsp;dalam blockchain biasanya berisi:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Header blok<\/strong>\u00a0(metadata):\n<ul class=\"wp-block-list\">\n<li>Nomor blok<\/li>\n\n\n\n<li>Timestamp (waktu dibuat)<\/li>\n\n\n\n<li>Hash dari blok sebelumnya<\/li>\n\n\n\n<li>Nonce (untuk proof-of-work)<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>Isi blok<\/strong>:\n<ul class=\"wp-block-list\">\n<li>Daftar transaksi<\/li>\n\n\n\n<li>Setiap transaksi punya data: pengirim, penerima, jumlah, dsb.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<p><strong>Gambaran sederhana:<\/strong><\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>&#91; Block N ]\n\u2193 hash\n&#91; Block N+1 ]\n\u2193 hash\n&#91; Block N+2 ]\n<\/code><\/pre>\n\n\n\n<p>Karena setiap blok merujuk ke&nbsp;<strong>hash blok sebelumnya<\/strong>, maka&nbsp;<strong>merusak satu blok akan memutus rantai<\/strong>&nbsp;\u2192 aman.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"bagaimana-transaksi-terjadi\">Bagaimana Transaksi Terjadi?<\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li>Kamu ingin kirim koin (misal ETH).<\/li>\n\n\n\n<li>Kamu buat transaksi \u2192 ditandatangani dengan\u00a0<strong>private key<\/strong>.<\/li>\n\n\n\n<li>Transaksi dikirim ke jaringan (broadcast).<\/li>\n\n\n\n<li>Node-node di jaringan memverifikasi transaksi.<\/li>\n\n\n\n<li>Jika valid \u2192 transaksi masuk ke blok berikutnya.<\/li>\n\n\n\n<li>Blok baru ditambahkan ke blockchain.<\/li>\n\n\n\n<li>Saldo penerima bertambah.<\/li>\n<\/ol>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"public-key-dan-private-key\">Public Key dan Private Key<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Private Key<\/strong>: kunci rahasia (jangan pernah dibagikan!)<\/li>\n\n\n\n<li><strong>Public Key<\/strong>: alamat publik yang bisa dibagikan (mirip no. rekening)<\/li>\n<\/ul>\n\n\n\n<p><strong>Private Key \u2192 Public Key \u2192 Wallet Address<\/strong><br>Dengan private key kamu bisa&nbsp;<strong>menandatangani transaksi<\/strong>.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"ringkasan\">Ringkasan<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Setiap blok menyimpan data transaksi + hash blok sebelumnya.<\/li>\n\n\n\n<li>Transaksi terjadi dengan tanda tangan digital.<\/li>\n\n\n\n<li>Keamanan: perubahan 1 blok memerlukan perubahan seluruh rantai \u2192 susah dilakukan.<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>Struktur Blok di Blockchain Satu&nbsp;blok&nbsp;dalam blockchain biasanya berisi: Gambaran sederhana: Karena setiap blok merujuk ke&nbsp;hash blok sebelumnya, maka&nbsp;merusak satu blok akan memutus rantai&nbsp;\u2192 aman. Bagaimana Transaksi Terjadi? Public Key dan Private Key Private Key \u2192 Public Key \u2192 Wallet AddressDengan private key kamu bisa&nbsp;menandatangani transaksi. Ringkasan<\/p>\n","protected":false},"author":1,"featured_media":24,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[8],"tags":[],"class_list":["post-53","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-web3-blockchain"],"_links":{"self":[{"href":"https:\/\/learn.rantissi.my.id\/index.php\/wp-json\/wp\/v2\/posts\/53","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/learn.rantissi.my.id\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/learn.rantissi.my.id\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/learn.rantissi.my.id\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/learn.rantissi.my.id\/index.php\/wp-json\/wp\/v2\/comments?post=53"}],"version-history":[{"count":1,"href":"https:\/\/learn.rantissi.my.id\/index.php\/wp-json\/wp\/v2\/posts\/53\/revisions"}],"predecessor-version":[{"id":54,"href":"https:\/\/learn.rantissi.my.id\/index.php\/wp-json\/wp\/v2\/posts\/53\/revisions\/54"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/learn.rantissi.my.id\/index.php\/wp-json\/wp\/v2\/media\/24"}],"wp:attachment":[{"href":"https:\/\/learn.rantissi.my.id\/index.php\/wp-json\/wp\/v2\/media?parent=53"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/learn.rantissi.my.id\/index.php\/wp-json\/wp\/v2\/categories?post=53"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/learn.rantissi.my.id\/index.php\/wp-json\/wp\/v2\/tags?post=53"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}