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🔒 Proof of Authority (PoA)

The Proof of Authority (PoA) system in Allfeat ensures that the network technically works securely, smoothly, and without interruption.

Unlike fully open networks where anyone can try to validate blocks, PoA relies on a pre-selected group of validators — trusted participants who run the network's infrastructure.

🧠 Why Do We Use PoA?

The music industry needs:

  • ✅ Fast confirmations
  • ✅ Reliable infrastructure
  • ✅ Predictable and affordable costs

PoA offers all of that by avoiding energy-heavy mining or complex economic games. It focuses on trust and performance, making it ideal for a professional, use-case-oriented chain like Allfeat.

Validators in PoA are:

  • Known and identifiable entities
  • Chosen for their technical reliability and neutrality
  • Accountable for maintaining uptime and fairness

They don’t receive newly minted tokens (no inflation), but they do earn:

  • 🔁 A share of transaction fees
  • 💰 Protocol rewards from a fixed treasury

🏗️ How It Works Behind the Scenes

Even if validators are pre-selected, we still need a system that:

  • Randomly chooses who creates the next block
  • Makes sure all validators agree on the correct version of the chain

Allfeat uses two mechanisms to do this:

🎯 BABE – Block Assignment

BABE (Blind Assignment for Blockchain Extension) is the engine that picks which validator will produce the next block.

Here’s how it works in simple terms:

  • At regular time intervals, validators are asked to propose a block
  • BABE randomly assigns the right to produce the block to one of them
  • If a validator is unavailable, another one can step in after a short delay

This creates a steady rhythm for the network and spreads the load fairly among validators.

🧓 GRANDPA – Finalization

Once blocks are proposed, the network needs to agree on which blocks are final and can never be changed.

This is where GRANDPA (GHOST-based Recursive ANcestor Deriving Prefix Agreement) comes in.

  • Validators vote on which blocks they consider finalized
  • If a majority agree, those blocks become permanent
  • This ensures everyone sees the same version of history, even if some nodes are offline temporarily

GRANDPA makes it very hard to rewrite the chain or trick the system with fake versions of events.

👥 Who Can Become a Validator?

At launch, Allfeat operates with a curated set of validators to guarantee stability. Over time, the validator set may expand, with new members added based on:

  • Their uptime and performance
  • Their neutrality and transparency
  • The trust they build with the Allfeat community

Note: this system is different from networks that allow anyone to join. It’s a pragmatic choice that ensures professional-grade service from day one.

📌 Summary

  • PoA is the foundation of Allfeat’s infrastructure layer
  • It uses a trusted pool of validators to process and secure transactions
  • Two key tools make it possible:
    • BABE: chooses who produces each block
    • GRANDPA: finalizes and agrees on block history
  • It provides a fast, cost-efficient and reliable network tailored to the needs of the music ecosystem