Applications that run on a blockchain are called smart contracts ✨🧠. These are computer programs that are always available and whose execution cannot be reversed — once a smart contract processes an incoming request, that processing cannot be reversed 🔒♻️.

Smart contracts can be used to implement financial instruments 💸, to record ownership of digital assets 🏷️, and to create marketplaces where people can buy and sell assets 🛒🤝.

And here’s the part that makes everything feel alive ⚡: smart contracts are composable — one smart contract can use another. That creates a vibrant ecosystem of innovation where one project can make use of a service developed by another project 🌐🚀.

Once deployed, they are available forever, running whenever someone interacts with them ⏳📡. By contrast, cloud computing applications are inherently transient — as soon as the application developer stops paying the cloud fees, the cloud provider kills the application 💻💸➡️🛑.

If you’re thinking about reliability, permanence, and unstoppable execution, smart contracts are where the future is building itself — one interaction at a time 💎.

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