in Korean, and the content as HTML with <article> and <h2> subheads. The original has subheads:

subheads. The original has subheads: "How the fee ran away", "A timely windfall for SpiderPool", "How to avoid a runaway fee". We'll translate those. We need to include the lead paragraph, then expand with more details. We have facts: Bitcoin transaction on Aug 12 paid 1.60 BTC fees (~$102,778), zero coins delivered. Sender used RBF to bump fee once per second until it consumed entire input. SpiderPool mined block 962,142, collected fees. Block fees totaled 1.82 BTC, so this error supplied 88%. Miners revenue slump, record pace of miners leaving, former leader of mining pools filed bankruptcy in July. Three settings to avoid: turn off automatic RBF bumping, set hard fee ceiling, send test payment. Coldcard wallet hack incident, Binance founder Changpeng Zhao said no wallet is bulletproof. Transaction permanent, fee unrecoverable. We can expand by adding background, explaining RBF, explaining the fee structure, etc. We need to produce a Korean translation. We'll write in Korean, using proper terminology. For crypto terms, we can use common Korean terms: 비트코인 (Bitcoin), 수수료 (fee), 거래 (transaction), 블록 (block), 채굴 (mining), etc. Replace-by-Fee is often called RBF or 대체수수료? Actually, in Korean, it's often kept as RBF or "수수료 대체" but we can explain. We'll structure: - Title: something like "비트코인 거래 수수료 1.6 BTC 실수로 지불... 스파이더풀이 횡재" but we need news-like. - Lead paragraph: the main fact. - Subhead 1: "수수료가 어떻게 치솟았나" (How the fee ran away) - explain RBF script. - Subhead 2: "스파이더풀의 횡재" (A timely windfall for SpiderPool) - details about the block and miner situation. - Subhead 3: "실수 방지하는 방법" (How to avoid a runaway fee) - three settings, Coldcard hack, Zhao's comment. - Conclusion: transaction permanent. We need to ensure word count 450-700. We'll write in Korean, and then count words? Korean words are counted differently, but we can estimate. We'll aim for a good length. We'll produce the JSON. Let's write the content. First, title: We need a news-like title. Something like "비트코인 거래, 수수료 1.6 BTC 실수로 지불... 스파이더풀, 1억원대 횡재" but we need to be accurate: $102,778 is about 1.3 billion Korean won? Actually, $102,778 is about 1.3 billion won? No, 1 USD is about 1300 KRW, so 102,778*1300 = 133,611,400 KRW, so about 1.3억원. So we can say "1.3억원" but we can just say "약 1억 300만원" or something. Actually, $102,778 is about 1.3억원 (133 million won). So we can say "약 1억 300만원" or "1.3억원" but let's keep it simple: "약 1억 300만원" or "1억 300만원" but we can just say "1억원대" or "약 1억 300만원". We'll use "약 1억 300만원" but we need to be precise. Actually, $102,778 at 1300 KRW is 133,611,400, so about 1.3억. So we can say "1.3억원" but we can also say "약 1억 3천만원" but that's 130 million, close. We'll say "약 1억 3천만원" but we can also just say "1.6 BTC" and "약 10만 달러" but we'll convert to won for Korean readers. We'll use "약 1억 3천만원" but let's check: 102,778 * 1300 = 133,611,400, so 1억 3361만원, so we can say "약 1억 3천만원" or "1억 3천만원" but we'll say "약 1억 3천만원" to be safe. But the original says "worth roughly $102,778" so we can keep the dollar amount and also mention won. We'll write "약 10만 2천 달러(한화 약 1억 3천만원)" but that's a bit long. We'll just say "약 1억 3천만원" for simplicity. We'll write the title: "비트코인 거래, 수수료 1.6 BTC 실수로 지불... 스파이더풀, 1억원대 횡재" but we need to be accurate. Actually, it's 1.6 BTC, and the fee is 1.6 BTC, so we can say "1.6 BTC 수수료" but we can also say "1.6 BTC의 수수료" etc. Let's craft the title: "비트코인 거래, 수수료만 1.6 BTC 지불하고 0원 전송... 스파이더풀이 횡재" but that's long. We'll do something like: "비트코인 거래 실수로 1.6 BTC 수수료 지불, 스파이더풀에 횡재" but we need news-like. We'll go with: "비트코인 거래, 수수료 1.6 BTC 실수로 지불… 스파이더풀, 1억원대 횡재" but we can also mention the zero transfer. Let's decide: "비트코인 거래, 수수료 1.6 BTC 실수로 지불… 스파이더풀, 1억원대 횡재" but we need to include the fact that nothing was sent. Maybe: "비트코인 거래, 수수료만 1.6 BTC 지불하고 0원 전송" but that's a bit technical. We'll write: "비트코인 거래, 수수료 1.6 BTC 실수로 지불… 스파이더풀이 1억원대 횡재" but we need to ensure it's news-like. Alternatively: "비트코인 거래, 수수료 1.6 BTC 실수로 지불… 스파이더풀에 1억원대 선물" but we'll keep it simple. I'll go with: "비트코인 거래, 수수료 1.6 BTC 실수로 지불… 스파이더풀, 1억원대 횡재" but we need to be accurate: the fee is 1.6 BTC, and it's about 1.3억원, so we can say "1억 3천만원" but we'll say "1억원대" for brevity. Actually, let's use "약 1억 3천만원" in the title? That's a bit long. We'll say "1억원대" but