Beyond SPHINCS+: A New Signature Scheme Hardens Post-Quantum Security
![The SpinelHash function pipeline anticipates inevitable decay by constructing a probabilistic structure where each layer’s output-derived from [latex]n[/latex] independent hash computations-serves not as a definitive result, but as the seed for the next, accepting that entropy will ultimately dominate any attempt at perfect preservation.](https://arxiv.org/html/2602.09882v1/x2.png)
Researchers have developed Spinel, a novel signature scheme building on the widely-adopted SPHINCS+ framework, to enhance its theoretical underpinnings and resilience against future attacks.






