Industry veterans all know that back when ZEC's daily output soared to 200 dollars, the excitement was simply indescribable. Looking back now? The Z15 mining machines purchased in 2020 are now so unwanted in the second-hand market that selling them by weight is considered too hot to handle. Even more ironic, from hot-selling machines at 30,000 yuan to being sold off by weight, the only thing in between was a sudden drop in hash rate. This is not mining at all; it's a roller coaster of heartbeat—yet the key issue is that you're betting not only on machine investments but also on those intangible, floating expectations.

Let's analyze calmly: how long can this ZEC market trend last? Think about how glorious the M30 series once was, now reduced to scrap; last year, the KA3 could still mine 7,000 yuan a day, now its residual value is only 100 yuan. The pattern never changes: hash rate surges → mining machines depreciate → coin price halves. If ZEC really drops back to $40, forget about machines breaking even; even faith would have to go into the recycling bin.

But here’s a painful question: why do we keep falling into the same pit over and over again? In the end, mining isn't about whose machine is the latest model; it's about who can accurately analyze risks, predict returns, and interpret real market data. Yet most of the time, the "data sources" we rely on are themselves bare-bones, with no guarantees.

This is where on-chain data oracles come into play. Experienced players have long noticed a phenomenon: before many projects blow up, on-chain data and market signals already show early signs, but ordinary retail investors simply can't catch them. Why? Because there's a missing bridge—something that can reliably bring real-world data into the blockchain ecosystem. The emergence of decentralized oracles is filling this gap—they are responsible for continuously delivering "true data" to the on-chain world.

Back to mining: do you think ZEC's mining profitability is high just because the project itself is solid? Wrong. What truly determines returns is whether you can be the first to grasp core data like hash rate changes, coin price trends, and difficulty adjustments. Whoever can access this information faster and more accurately will survive longer in the next wave of market movements.