headings. We need to translate each paragraph.
Let's translate paragraph by paragraph.
First paragraph: "Circle has locked in September 16, 2026, for the public mainnet debut of Arc, its institutional blockchain platform. The company announced the date alongside a founding validator cohort that includes BlackRock, DTCC, Galaxy, Global Payments, ICE, Mastercard, MoneyGram, SBI Group, Standard Chartered, Sumitomo Corporation, and Visa."
Translation: "Circle, kurumsal blockchain platformu Arc'ın halka açık mainnet lansmanı için 16 Eylül 2026 tarihini belirledi. Şirket, tarihi, BlackRock, DTCC, Galaxy, Global Payments, ICE, Mastercard, MoneyGram, SBI Group, Standard Chartered, Sumitomo Corporation ve Visa'yı içeren kurucu doğrulayıcı grubuyla birlikte duyurdu."
We need to keep proper nouns as is. "mainnet" is a term, we can keep as "mainnet" or "ana ağ" but in crypto context, "mainnet" is often used. We'll keep "mainnet" as is. "blockchain" is also used. "institutional" -> "kurumsal". "debut" -> "lansman" or "ilk çıkış". We'll use "lansman" for debut. "locked in" -> "belirledi" (set). "alongside" -> "birlikte" or "yanında". We'll use "birlikte".
Second paragraph: "Validator lineup spans finance and payments" as heading. Then: "The validator group reads like a who's who of traditional finance and payments infrastructure. BlackRock, the world's largest asset manager, is expected to deploy its BUIDL token on Arc. DTCC, the post-trade clearing giant, will work with Circle to enable tokenization of US Treasuries and other assets starting in the second half of 2027. Mastercard, Visa, and MoneyGram bring payments reach; ICE, Galaxy, and Standard Chartered add trading and custody depth. SBI Group and Sumitomo Corporation represent Asian financial heavyweights."
Translation: "Doğrulayıcı kadrosu, geleneksel finans ve ödeme altyapısının kim kimdir listesi gibi. Dünyanın en büyük varlık yöneticisi olan BlackRock'ın Arc üzerinde BUIDL token'ını dağıtması bekleniyor. İşlem sonrası takas devi DTCC, 2027'nin ikinci yarısından itibaren ABD Hazine tahvilleri ve diğer varlıkların tokenizasyonunu sağlamak için Circle ile çalışacak. Mastercard, Visa ve MoneyGram ödeme erişimi sağlıyor; ICE, Galaxy ve Standard Chartered ise işlem ve saklama derinliği ekliyor. SBI Group ve Sumitomo Corporation Asya'nın finansal ağır toplarını temsil ediyor."
We need to be careful with "who's who" - we can say "kim kimdir" but that's literal. Maybe "önemli isimler" but we'll keep as "kim kimdir" in quotes? Actually, we can say "geleneksel finans ve ödeme altyapısının önemli isimlerinden oluşan bir liste" but the original says "reads like a who's who" so we can say "geleneksel finans ve ödeme altyapısının kim kimdir listesi gibi" - that's fine.
"deploy" -> "dağıtması" (to deploy) but in crypto, "deploy" often means to put into use, we can say "kullanıma sunması" but "dağıtması" is okay. Actually, "deploy" in blockchain context often means to launch a token on a network, so "Arc üzerinde BUIDL token'ını kullanıma sunması" might be better. But we'll use "dağıtması" as it's common.
"post-trade clearing giant" -> "işlem sonrası takas devi" - that's fine.
"tokenization" -> "tokenizasyon" is used.
"payments reach" -> "ödeme erişimi" or "ödeme ağı" but we'll use "ödeme erişimi".
"trading and custody depth" -> "işlem ve saklama derinliği" - that's fine.
"heavyweights" -> "ağır toplar" is a common expression.
Third paragraph: "Arc is already running in a private mainnet with more than 100 ecosystem and institutional builders. The August 5 announcement formalized both the mainnet date and the validator lineup, which had been rumored for months."
Translation: "Arc, 100'den fazla ekosistem
