function deriveSeed
seed.ts:55
Derive a child seed from a parent and a stable label.
Every lane absorbs every code unit, so sibling labels that differ in one character ("body:3" vs "body:4") produce entirely unrelated seeds rather than correlated ones — otherwise adjacent planets come out suspiciously similar.
- parentSeed
- Undocumented
- labelstring
- Undocumented
ReturnsSeed