Architecture

The performance design is a tagged task graph. It does not dedicate one complete hash engine to one signature, and “pipeline” does not mean one linear register chain from input to output.

The active SHA-256 hierarchy has three repeated lane-local clusters. Each cluster owns four independent WOTS contexts, one exact-64-cycle compression lane, request arbitration, response routing, and a bounded result framer. A narrow global top distributes complete jobs and merges complete results.

                         one input stream
                                │
                  rotating whole-frame admission
                    ┌───────────┼───────────┐
                    ▼           ▼           ▼
               cluster 0   cluster 1   cluster 2
               4 contexts  4 contexts  4 contexts
               1 SHA lane  1 SHA lane  1 SHA lane
                    └───────────┼───────────┘
                         result-frame merge
                                │
                         one output stream

The signer and verifier reuse this 3×4 shape but have different context state, work accounting, framing direction, and fault rules.

Read the active system map before opening the detailed signer or verifier pages.