structural sync

The five-layer verification framework for the cyber protocol ensuring verified eventual consistency.

layers

1. zheng validity — confirms each signal conforms to protocol grammar
2. hash chain + VDF ordering — establishes causal and temporal sequence per source
3. NMT completeness — guarantees every signal in a block is included in the namespace Merkle tree
4. DAS availability — verifies that block data can be reconstructed from erasure-coded samples
5. patch sync — propagates verified state deltas across nodes for convergence

Each layer builds on the one below, so a node can choose its trust depth depending on resource constraints.

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