Glossary
Plane
One of nine architecture levels, P0 residency to P8 packs; the kernel is P3.
Read the termGlossary · Term 33 of 39
Residency domain
A residency domain is a region with its own database and its own signing key. Today elan1 has one, "in", in Mumbai. Proof records stay in the domain they were written in, and L2 signatures use that domain's key. Gulf and EU domains open only on a signed contract.
In one sentence: A region with its own database and signing key. Today there is one: "in" (Mumbai).
01In more detail
What it means in practice
Domain "in" runs on AWS ap-south-1 (Mumbai) across three zones. A cross-domain query is not slow; it is impossible.
New regions open only on a signed contract, never a forecast; no US region is offered.
02Where this shows up in elan1
Plane P0; the security page; the DPDP regulation hub.
Defined in the elan1 glossary · Last reviewed 10 Oct 2026. Definitions change only with a dated note.
// SEE IT
See the term in a governed action.
The walkthrough follows one write from intent to proof record, using the words in this glossary.