# SaaStain | Governed Financed Emissions

**URL:** [https://peercarbon.earth/saastain](https://peercarbon.earth/saastain)

> **Description:** The only governed financed emissions engine. Lock methodology before computation, immutable evidence after. PCAF aligned.

---

Governance by Construction 

#  Governance is   
Built In.

Climate disclosures fail when systems allow manual tweaking. Peercarbon eliminates the guesswork: we lock the methodology before the math starts. One accountable person approves the result. The system physically prevents any other outcome. 

[ See How the Compute Works  ](/methods) [ See CarbonMap ](/#carbonmap)

PCAF Aligned  Deterministic Compute  Immutable Evidence 

Fragile

Governed

The Control Problem 

##  The Control Gap 

You are defending your numbers against rigid global frameworks, but your internal systems are full of holes. Manual tweaks, logic drift, and hidden risks accumulate faster than your audit cycle can catch them. 

### Hidden Discretion

Manual overrides and unversioned spreadsheets aren't just messy - they are functionally unverifiable. Accountability diffuses into "the team," rendering the audit void. 

Single-Person Accountability

Every workspace enforces one named approver. No admin override. No silent bypass. Every decision is cryptographically signed. 

### Logic Drift

Standards evolve, interpretations shift, results change without versioned explanation. Year-over-year comparability breaks. 

Version-Locked Methodologies

Methodologies are frozen per workspace. Once a number is published, it cannot be changed, edited, or deleted - by anyone. 

### Unchecked Data Risks

Mixed portfolios and uncontrolled spreadsheets create liability. "Best effort" checks aren't enough. 

Strict Data Gates

We verify data completeness before it ever enters the system. Raw customer PII stays safely inside your firewall, never ours. 

Core Architecture 

##  A Pipeline That Rejects  
Bad Data Instantly.

Bad data fails loudly at ingestion, not silently at computation. Every stage of the process either moves the record forward or rejects it with a specific reason. We don't do "best effort" processing - if the data isn't right, the system tells you immediately so you can fix it. 

![Data Refinery Schematic - Rejecting Bad Data](/_astro/saastain_pipeline_refinery.DNMR71EN_Z1uUhc7.png)

Data Sovereignty 

##  Your Data Never  
Leaves Your Walls.

Customer identifiers and source records stay inside your firewall. We use a one-way data flow to ensure no personal client data ever touches our engines. 

  * ### Total Isolation

Your data is physically separated from other clients.

  * ### Enforced Privacy

Security is baked into the database layer. Tenant isolation is structurally enforced, rendering cross-contamination impossible at the application level.

  * ### Data Minimization

We only request the exact fields needed for the math. Nothing else crosses the line.




![Data Sovereignty Shield - Secure Bank Perimeter](/_astro/saastain_sovereignty_shield.ByqWuHiQ_Z1dCOYl.png)

![AI Containment Field - Constrained Intelligence Model](/_astro/saastain_ai_containment_field.Bds0TY65_ZsdotD.png)

Constrained Intelligence 

##  AI That Verifies,  
Never Guesses.

We use AI to check our homework, not to write it. Our system uses constrained AI models strictly to verify that your locked methodology rules were followed. AI is securely isolated from the trust path - it monitors the pipeline but cannot write to the ledger. 

  * ### Locked Methodologies

Computations run against frozen formulas.

  * ### Zero Variance

Run the same portfolio twice, get the exact same number.

  * ### Replayable Logic

Audit trails can reconstruct any past result instantly.




##  Connect in Weeks,  
Not Years.

No custom connectors. No middleware vendors. Just push data via the standard secure protocols your IT security team already uses. 

01

Push via Secure API

02

Secure File Transfer (SFTP)

03

Direct Upload (Portal)

### Connectivity Visual

TLS 1.3 AES-256

![Multi-Protocol Data Hub - Software Defined](/_astro/saastain_ingest_soft.DxTPqVI0_FiAVb.png)

Multi-Protocol Ingestion -> Deterministic Transformation -> Immutable Lock 

![Cryptographic Audit Chain - Linked Evidence](/_astro/saastain_audit_chain_link.BVWt9jtq_ZIsEJS.png)

##  The Audit Record. 

Audit-ready by design. Every calculation produces a cryptographically signed CarbonMap Record. It traces every single number from ingestion to final report. Your disclosure becomes defensible under regulatory scrutiny. 

Download Sample Record 

The Transition Cycle 

##  Measure the Risk.  
Fund the Transition.

SaaStain is the governed disclosure layer. Methodology locked, evidence immutable. VeriFund operates on that foundation to measure what your green assets prevent. Capital cannot outrun its disclosures. 

[ Explore VeriFund  ](/verifund)

![Transition Engine Cycle - From Risk to Capital](/_astro/saastain_verifund_cycle.DplWtHYQ_Z2kGza4.png)

##  One protocol.  
One standard.  
One engine. 

TECHNICAL GOVERNANCE 

Access the OpenAPI spec, request sandbox keys, or download our technical whitepaper on deterministic compute architectures. 

[ Walk Through Your Data  ](/contact)

Consultative, not transactional. No commitment beyond the conversation.

[ Read Documentation → ](/methods)
