You give it a file; it gives back an identity. Nothing is uploaded to compute it.
Fingerprinted in your browser. Nothing altered, nothing transmitted.
Six glyphs struck onto an added margin. Your bytes are never overprinted.
A position in a public, exportable registry — checkable by a stranger who does not trust us.
The grammar is AXN:HEX.FAMILY.⟨six glyphs⟩. The hex marks position in the registry, the family is its semantic classification, and the glyphs are a display hash of the identity kernel — the symbols are memorable; the kernel stays exact.
identity kernel deb473d8ff92c55f… · first six bytes of the SHA-256 of the canonical bytes
the colour beneath each glyph names its byte-family · Direction → Touch → Growth → Direction → Closure → Proof
Both sides must produce the same kernel. Your file is hashed independently and compared with the registry's record. A match proves the bytes are the same.