Forged by Astra Vale during her legendary restoration of the completely dissolved Hole 7, where she used ancient course maps to recreate the terrain's original geometric signature. Through precise repair throws, she discovered that reality could maintain a 'memory' of its former state, creating echoes that continuously reinforced the reconstruction against entropy's pull.

This resonant construct manifests as concentric golden rings that pulse with stabilizing energy, each ring representing a layer of reality memory that prevents dissolution. The rings expand and contract in mathematical harmony, creating reinforcement waves that strengthen weakening course features. Its geometric precision allows it to store and replay the exact measurements needed for perfect reconstruction, making it invaluable for maintaining complex course architecture against void erosion.

The Persistent Echo serves as a living blueprint that other Reality Anchors can reference for reconstruction efforts, its continuous resonance providing the mathematical foundation needed for permanent stability. It acts as a beacon that guides repair throws and ensures that once-dissolved features maintain their restored form indefinitely.