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Transaction Science, Inc.

Every transaction is a claim about reality.
We make claims verifiable.

Tax returns, property closings, compliance filings. The rules are written. The answers are deterministic. Our software proves it.

6
Platforms
$40T+
Markets Addressed
0
Legacy Debt
Explore

Products

Six platforms.
One architecture.

FinanceOS

Veritas

Tax computation that shows its work. Every number links to the IRC section that authorizes it. Multi-state returns in under a second, online or off.

Pure-function tax engine
IRC citation provenance
50 states + 14 countries
Offline-first WASM
BaaS + Plaid integration
MeF e-filing
useveritas.ai
RealEstateOS

TerraOS

Search a property, finance it, close it, stay compliant, tokenize it. One platform handles the whole deal.

Conversational search
Geospatial intelligence
Mortgage origination
FinCEN AML/KYC
Property tokenization
Climate risk scoring
useterraos.ai
CloudIntel

Insights

Energy-aware cloud intelligence. Every API call tracks consumption, calculates emissions, and proves regulatory compliance in real time.

Energy attribution
CSRD carbon reporting
Sovereignty checks
MiCA disclosure
Cost optimization
OpenTelemetry native
insights.transaction.science
TradingInfra

TradingOS

Matching engine, pre-trade risk, settlement, and surveillance infrastructure for licensed trading venues, exchanges, and broker-dealers.

Matching engine
Pre-trade risk
FIX 4.4 gateway
Market surveillance
Settlement + PnL
Tamper-evident audit
tradingos.science
Juris

LegalOS

The entire legal corpus — statutes, regulations, rulings, treaties — structured as a programmable system. Every jurisdiction, every answer traced to its source.

Global statute graph
Citation provenance
Multi-jurisdiction resolver
Contract lifecycle
Compliance engine
Legal library
legalos.science
ComplianceOS

ComplianceOS

Continuous compliance across 50+ frameworks and 195 jurisdictions. Evidence generated as a byproduct of every transaction — no uploads, no screenshots.

50+ frameworks
Transaction-native evidence
Cross-framework mapping
Continuous monitoring
Global jurisdictions
Trust center
complianceos.science

Technology

Built different. On purpose.

These choices were made before we wrote the first line of product code. You can't retrofit them. We didn't have to.

01

Rust Everywhere

One language runs the tax engine, the frontend, and the geospatial stack. Memory-safe. No garbage collector. Fast.

02

Formal Verification

We prove the math is right. Kani symbolic execution and 225K Monte Carlo scenarios. Every computed value traces back to its legal citation.

03

Offline-First WASM

The full engine compiles to WebAssembly and runs in your browser. Works without internet. Syncs when you're back online.

04

Multi-Model Database

JouleDB handles SQL, graph, vector, time-series, and OLAP in one engine. One database instead of five.

05

Financial Precision

Money stored as i64 cents. Rates stored as basis points. No floating-point anywhere near a dollar amount. Rounding errors don't exist here.

06

AI Suggests, Math Decides

LLMs classify documents and surface recommendations. The tax engine and compliance layer make the final call. No black-box financial decisions.

architecture.rs
// The Transaction Science stack
pub struct Platform {
    language:     "Rust — memory safe, zero-cost, single binary",
    verification: "Kani + Monte Carlo — provably correct",
    compute:      "WASM — runs anywhere, offline-first",
    database:     "JouleDB — SQL + graph + vector + OLAP",
    precision:    "Fixed-point — i64 cents, basis points",
    ai:           "Suggest → Verify — math has final say",
    compliance:   "50+ frameworks, 195 jurisdictions, zero uploads",
}

Thesis

The science of transactions.

A transaction is a claim about state. A manifest says 14 apples. A tax return claims $47,000 in deductions. A deed transfers 2.3 acres. The question is always the same: does the claim match reality?

The Verification Gap

We verify everything we compute.

Every financial transaction is a deterministic function. The inputs are known. The rules are published. The output is computable. There is a correct answer, and it's already written in the law. The gap between what software claims and what the law requires is the verification gap. We close it.

P
Precision
Exact arithmetic. No floating point.
P
Provenance
Every number cites its authority.
C
Completeness
One system. The full lifecycle.
V
Verifiability
Check our work. That's the point.
S
Sovereignty
Your data. Your machine. Offline.

R Regulatory Tailwinds

MAR 2026
FinCEN RRE Rule

AML/KYC reporting is now mandatory for all-cash real estate transfers. TerraOS already handles it.

JAN 2026
SEC Tokenization Guidance

Tokenized real estate now has clear rules. TerraOS supports SEC Reg D/A+ and EU MiCA.

2025–2026
TCJA Sunset Provisions

Major tax code changes hitting every US taxpayer. Veritas models both scenarios and shows the IRC math behind each one.

MID 2026
EU MiCA Implementation

Crypto-asset regulation across the EU. Our systems handle multi-jurisdiction compliance out of the box.

D What We Deliver

CLAIM → VERIFIED
Tax computation with proof

Every value in a Veritas return links to the IRC section that authorizes it. The claim is the return. The proof is the citation.

CLAIM → VERIFIED
Real estate transactions end to end

TerraOS tracks the full lifecycle: search, finance, close, comply, file. One system holds the state. One system verifies it.

CLAIM → VERIFIED
Energy and compliance intelligence

Insights measures the energy cost of every computation and generates verifiable CSRD and MiCA compliance reports.

CLAIM → VERIFIED
Compliance as a property, not a process

ComplianceOS sits across every platform. Every transaction already produces tamper-evident, citation-traced evidence. Compliance isn't collected — it's generated.

THE PRINCIPLE
If the law is deterministic, the software must be

A tax return is a pure function. A closing is a state machine. A compliance check is a predicate. We treat them that way.

$47B
Global PropTech market (16% CAGR)
$41.5B
AI in Real Estate by 2033
$4T
Tokenized RE assets by 2035
$25B
US tax software market
$37.6B
GRC market by 2030 (19% CAGR)