Module fingerprint 

Structural fingerprinting for Microscope Memory.

Each block gets a structural fingerprint at index time: Shannon entropy + byte distribution hash. Blocks with similar fingerprints are linked in links.bin — creating “wormholes” between structurally similar but spatially distant blocks.

Binary format: fingerprints.idx (FGP1), links.bin (LNK1)

Structs

BlockFingerprint

Structural fingerprint for a single block.

FingerprintStats

LinkTable

Link table — mmap-friendly storage of structural links.

StructuralLink

A structural link between two blocks.

Functions

compute_fingerprint

Compute the structural fingerprint of a block’s content.

fingerprint_similarity

Compute similarity between two fingerprints (0.0..1.0).