Architectural Blueprint · Sidecar Finance Subsystem

How TIEOT Operates Beside Your ERP

TIEOT is architected as an autonomous sidecar. It leaves your general ledger untouched, continuously auditing subledgers, invoices, and bank statements to resolve financial exceptions in exact decimal precision.

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Pillar 1: Compute Engine (Keel)

Exact Decimal Engine: Real Numbers, Never LLM Math

Calculations involving corporate money must be exact down to the cent and the paisa. TIEOT runs deterministic financial code using strict 19,4 decimal arithmetic. The AI assistant never calculates, sums, or guesses financial figures.

  • No AI Math: LLMs never compute currency. Code copies exact amounts.
  • Versioned Rules: Every discrepancy links to an audited rule version ID.
  • Escalation Clocks: 40% / 75% window alerts prevent discount & statutory lapses.
Deterministic Keel Receipt (Verification Trace)100% Verified
[KEEL COMPUTE RUN #f91820b · LIVE SUBLEDGER AUDIT]
INPUT ROWS: 1,482 vouchers (Tally Prime) + 84 statement clearing records (HDFC CMS)
MATCH STRATEGY: Combinatorial residual partition with 194Q TDS factor
TOLERANCE: Exact decimal match (residual = ₹0.0000)
CASES OPENED: 4 ranked exceptions · Total impact: ₹31,48,200.00
STATUS: Cryptographic audit receipt generated. Zero floating-point rounding errors.
Assistant Boundary SpecificationSchema Enforced
TOOL: draft_disposition & classify_exception
SCHEMA INPUTS: case_id: string, evidence_pointers: string[], rule_id: string
AMOUNT FIELDS: [STRICTLY OMITTED FROM TOOL INPUT/OUTPUT]
OUTPUT: Synthesized business rationale, cited voucher numbers, proposed voucher type.
VERIFIER: Refuses output if evidence IDs are not cited from raw source records.
Pillar 2: Assistant Investigation

AI Assistant with Zero Hallucination Risk

Our AI assistant reads joined evidence rows across invoices, bank statements, and payment vouchers. It drafts plain-English explanations citing exact voucher IDs and contract rules. If an assertion lacks an evidence pointer, the system refuses it.

  • Evidence Citations: Every claim links to an immutable raw record.
  • Ready-to-Review Vouchers: Generates the exact journal entry ready for review.
  • No Platform Cosplay: Built for controllers, not generic prompt playgrounds.
Pillar 3: Human-in-the-Loop Sign-Off

Durable Approvals & Immutable Audit

Accounting decisions require human accountability. TIEOT never posts silently to your ERP. Every proposed disposition requires human sign-off (Approve, Edit, Reject, or Snooze) and is recorded as an immutable audit row.

  • 1-Click Approval: Action rail saves 90% of manual data entry time.
  • Immutable Log: Tracks who approved, what evidence was cited, and when.
  • Audit Export: Export full session trails for statutory auditors with one click.
Immutable Audit Row StructureSOC-2 Aligned
{
"case_id": "XCASE-000418",
"actor": "user:controller.mehta@bharatprecision.in",
"action": "approved_and_queued",
"amount": "485000.0000",
"currency": "INR",
"voucher_ref": "JV-TALLY-2026-0941",
"rule_version": "rst-recon-v1.4.2",
"timestamp": "2026-10-22T09:14:53.112Z"
}

Test the Subsystem on Your Books

Connect your Tally Prime or NetSuite export in under 45 minutes for a 14-day zero-risk parallel pilot. The general ledger stays sovereign.

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