Mechanism Matrix — seven layers, one record
Architecture of the outbound rail
Every layer states what enters, what it decides, and what it can never do.
The rail is not one model answering one question. It is seven layers, each with a single responsibility, a named owner, a declared technology and a failure position. A layer may only pass forward what the layer before it sealed.
7
Sequenced layers
Each one seals its output before the next may read it.
9 min
End-to-end clearance
Against 28 days across five parties working in sequence.
1
Model in the path
Statutory drafting only. Rule code holds every veto.
100%
Checkpoints proved
Every layer commits a hash-chained, verifiable artefact.
Layer by layer
Open a layer to see its contract.
Input, action, output, technology, owner, and the position it takes when something is unclear. Nothing in the rail operates without all six being stated.
Enters the layer
Sealed entity header, existing overseas commitments, guarantees and prior ODI/OPI drawdowns.
What the layer does
Applies the 400% of net worth financial-commitment ceiling at group level, subtracts utilised headroom, and returns remaining capacity to the rupee.
Leaves the layer
Headroom instrument — ceiling, utilised, remaining, and the route the number implies.
Technology chosen
Deterministic rules engine (no model in the decision path)
A ceiling is arithmetic under law, not judgement. Hard-coded rule logic is reproducible, testable and defensible to a supervisor line by line.
Ownership
Raja Mukherjee — Team Lead
Accountable for the design of this layer and the defensibility of its output.
Failure position
Any ambiguity resolves conservatively — downward — and flags for human review.
1.2 sec automated · 3–6 days manual
In plain words
Indian law lets a company commit abroad up to four times what it is worth. This layer does that sum and shows how much room is left.
Cross-layer control matrix
Where judgement is allowed, and where it is forbidden.
Cross-layer control matrix, scrollable horizontally
Layer
Determinism
Model involvement
Regulator visibility
Cryptographic proof
01 · Intake & Identity
02 · Rule 7 Headroom Engine
03 · Statutory Reasoning
04 · Route Determination
05 · Evidence & Zero-Knowledge Proof
06 · Federated Supervisory Ledger
07 · Clearance & Continuing Compliance
Read the second column downward: the model appears once. Every layer that decides a ceiling, a route or a prohibition is fully deterministic. That single property is what makes the rail presentable to a supervisor.
Time ledger
Automated rail
9 min
Seven layers running in sequence, each sealing a proved artefact, with all six authorities and the AD bank reading the same record as it forms.
Manual practice
28 days
The same file rebuilt five times by counsel, the treasury, the AD desk and two regulators — sequentially, each waiting on the last.