STN Chain

A Deterministic Consensus Network for Verifiable Records, Agreements, Distributed State, and Independent Data Exchange

Whitepaper Draft v0.3
STN Chain
September 21, 2026

Abstract

STN Chain is a deterministic distributed blockchain network designed for verifiable records, organizational agreements, software and research publications, threat intelligence records, contracts, future economic activity, and other consensus-recognized state.

STN Chain originated from research and development conducted within STN-LABZ, but STN Chain and STN-LABZ are distinct systems and organizational identities.

STN Chain is not the STN-LABZ security research pipeline.

STN-LABZ may produce data for the Chain, consume data from the Chain, operate infrastructure that interacts with the Chain, and use Chain records as part of its security research systems. These relationships do not make STN-LABZ the authority over STN Chain consensus.

The system is designed around a simple principle:

Evidence does not determine truth. Consensus does.

Peers provide evidence. Miners provide proof-of-work. Clients provide submissions. Stratum coordinates mining work. Sentinel systems and external organizations may produce or consume records.

None of these participants independently determine accepted Chain state.

Every compliant STN Chain node independently applies canonical serialization, deterministic validation, protocol-defined consensus rules, proof-of-work verification, and deterministic state transitions to determine whether supplied evidence is accepted.

STN Chain is designed to remain platform agnostic. Platform-specific implementations may exist behind defined abstractions, but canonical serialization, identifiers, validation, protocol behavior, contract transitions, mining interpretation, and all other consensus-visible results must remain identical across supported systems.

The network is developed in ISO C17 with an emphasis on three engineering requirements:

Small. Deterministic. Easy to use.

STN Chain does not implement an Ethereum-style virtual machine, arbitrary bytecode, arbitrary script execution, or gas-based computation.

Its Contract Engine is instead designed around deterministic addressed agreements with explicit participants, authority, signatures, sequence, permitted actions, and state transitions.

STN Chain uses typed deterministic addresses for identities, contracts, and future wallets while preserving strict separation between those object classes.

The network is intended to support participation across a wide range of hardware, including dedicated ASIC systems, USB ASIC devices, CPU and GPU miners, and constrained ARM systems.

Mining hardware supplies proof-of-work.

Hardware class and hashing power do not grant protocol authority.

1. Introduction

Distributed systems fail when different participants are allowed to interpret the same evidence differently.

Blockchain systems address this problem by establishing a deterministic protocol through which independent participants can evaluate shared evidence and converge on a common accepted state.

STN Chain extends that model beyond simple value transfer.

The network is intended to provide a permanent and independently verifiable foundation for:

threat intelligence records;
organizational and company records;
deterministic agreements and contracts;
software release metadata;
research publications;
certifications and attestations;
authorized evidence;
future economic activity;
other consensus-recognized records.

STN Chain is not designed around the assumption that one company server, one miner, one peer, one application, one infrastructure provider, or one originating organization should define reality.

Instead:

Evidence
-> Canonical Representation
-> Deterministic Validation
-> Consensus Rules
-> Accepted State

Consensus is the authority.

2. Organizational Independence

STN Chain originated from development conducted within the STN-LABZ ecosystem.

That origin does not make STN Chain synonymous with STN-LABZ.

The architectural relationship is:

STN-LABZ
|
| may produce records
| may consume records
| may operate participating infrastructure
v
STN Chain

STN Chain exists as a distinct distributed network with its own:

consensus rules;
protocol behavior;
Chain state;
mining infrastructure;
contracts;
future economics;
public documentation;
operational identity.

STN-LABZ may participate in STN Chain.

STN-LABZ does not become consensus authority merely because STN Chain originated within its research and development environment.

Likewise:

STN-LABZ != STN Chain
STN Chain != STN-LABZ

The two systems may integrate closely without collapsing their identities into one another.

This separation becomes increasingly important as STN Chain develops:

independent network participation;
external record producers;
external record consumers;
mining compensation;
native economic activity;
contracts;
organizational agreements;
potential cryptocurrency exchange or transfer;
regulatory and accounting obligations.

Before production cryptocurrency operations begin, appropriate legal, trade-name, accounting, registration, and other applicable requirements must be evaluated and completed for the jurisdiction and activity involved.

STN Chain must not rely on informal organizational overlap once economic activity begins.

3. Engineering Doctrine

STN Chain development follows three primary engineering requirements:

SMALL
DETERMINISTIC
EASY TO USE

Complexity is not treated as a sign of sophistication.

Protocol mechanisms should remain as small as reasonably possible while still satisfying their defined purpose.

Consensus-visible behavior must never depend upon implementation accidents such as:

pointer values;
process-local memory layout;
filesystem ordering;
locale;
native structure padding;
operating-system scheduling;
thread scheduling;
socket arrival order;
undefined C behavior;
uncontrolled randomness;
platform-specific structure layout.

Where platform-specific functionality is required, it must remain behind defined abstractions.

A Windows node, Linux node, ARM node, or other supported implementation receiving identical canonical evidence and accepted history must derive identical consensus-visible results.

4. Consensus Model

The STN Chain consensus model separates evidence from authority.

Participants provide evidence to the network.

The protocol determines whether that evidence becomes accepted state.

Canonical Input
|
v
Canonical Serialization
|
v
Deterministic Validation
|
v
Consensus Rules
|
v
Deterministic State Transition
|
v
Accepted Chain State

Examples of evidence include:

Peer block -> evidence
Mining proof -> evidence
RPC submission -> evidence
Stored block -> evidence
Signature -> cryptographic evidence
External record -> evidence
Organizational data -> evidence

Evidence remains subject to validation.

No external participant automatically determines local accepted state.

Miner != Authority
Stratum != Authority
Peer != Authority
Seed != Authority
STN Core != Authority
STN API != Authority
STN-LABZ != Consensus Authority

Every compliant node evaluates the protocol independently.

5. Consensus and Local Policy

STN Chain makes a strict distinction between consensus rules and local operating policy.

A useful test is:

Would two compliant nodes be permitted to choose different values?

If yes, the value may represent local policy.

If every compliant node must derive the same answer for compatibility, it is consensus-visible.

Examples of consensus-visible behavior include:

canonical serialization;
transaction identifiers;
block identifiers;
block linkage;
proof-of-work validation;
target interpretation;
cumulative-work comparison;
fork choice;
block limits;
replay rules where protocol-defined;
signature validation where protocol-required;
authority evaluation where protocol-required;
deterministic contract transitions;
deterministic difficulty adjustment.

Examples of local policy include:

pending-store memory capacity;
peer connection strategy;
bootstrap configuration;
cache sizes;
logging behavior;
pending-state persistence policy;
RPC exposure configuration.

Local policy must never accidentally become consensus.

Organizational policy must likewise not silently become consensus.

A policy adopted by STN Chain, STN-LABZ, a miner, an operator, or another participating organization does not become a protocol rule unless the protocol explicitly defines it as such.

6. Canonical Representation

Canonical representation is the foundation of STN Chain interoperability.

Equivalent logical protocol objects must produce identical canonical bytes.

Canonical serialization therefore uses:

fixed-width consensus fields;
explicit endian handling;
deterministic encoding rules;
no native structure serialization;
no floating-point consensus values;
no locale-sensitive conversion.

Conceptually:

Canonical Object
-> Canonical Bytes
-> Canonical Identifier
-> Deterministic Validation

Canonical identifiers are derived using SHA-256.

Transaction identity, block identity, pending-state identity, duplicate detection, addresses where protocol-defined, and other protocol-visible object references are based on canonical representation rather than memory identity or arrival order.

7. Chain State and Fork Choice

STN Chain validates blocks independently.

A candidate block is evaluated against:

structural validity;
canonical encoding;
previous-block linkage;
proof-of-work;
target requirements;
ancestry;
cumulative work;
applicable protocol rules.

Peers do not determine the accepted Chain.

A node determines acceptance locally:

Block Validity

Ancestry
Proof-of-Work
Cumulative Work
Fork Rules

= Accepted Chain

Competing histories are resolved through deterministic fork-selection rules.

Chain state may be reorganized when a better valid competing history is discovered.

8. Proof-of-Work and Mining

STN Chain uses proof-of-work as part of block acceptance.

Mining behavior includes:

SHA-256 block identification;
a full 256-bit target;
a 64-bit nonce;
a fixed nonce mutation region;
deterministic work identity;
stale-work rejection.

Mining participants provide proof.

They do not determine validity.

The same consensus rules apply regardless of mining source:

CPU;
GPU;
USB ASIC;
dedicated ASIC;
constrained ARM systems;
internal low-rate miners;
solo miners;
miners operating through STN-Stratum.

Hashing power does not grant protocol authority.

STN Chain is intentionally designed so that low-hashrate participants remain valid participants when they produce protocol-valid work.

The network does not require a particular hardware class to participate.

8.1 Miner Identity

A miner may identify itself using an STN Chain identity address.

Identity addresses use the stn0_ namespace.

For example:

stn0_<canonical-identity-identifier>

A miner may present this identity to STN-Stratum as part of its participation in the mining network.

The presence of an identity address in the mining path does not currently establish:

a wallet;
a balance;
a reward;
a payment destination;
compensation entitlement;
economic ownership;
additional consensus authority.

Mining identity is being established before the economic layer so later economic functionality can associate participation with deterministic Chain identities without retrofitting identity into the mining path.

STN-Stratum may associate mining participation with a presented identity.

STN-Stratum does not determine the economic meaning of that identity.

Economic interpretation belongs to the STN Chain Economy.

9. STN-Stratum

STN-Stratum provides mining coordination between STN Chain and miners.

Its relationship is:

STN Chain
|
STNC
|
STN-Stratum
|
Miners

STN-Stratum may:

obtain canonical mining work;
distribute mining jobs;
receive shares and solved proofs;
coordinate multiple miners;
manage job refresh and stale work;
associate mining sessions with presented Chain identities;
submit solved work back to Chain.

STN-Stratum does not duplicate Chain consensus.

STN-Stratum does not determine identity ownership.

STN-Stratum does not determine balances, rewards, wallet ownership, or compensation.

Final block validation remains the responsibility of STN Chain.

10. STNC Protocol

STNC is the native binary application-facing protocol for STN Chain.

The current protocol version is STNC v2.

It provides a deterministic interface for systems including:

STN Core;
STN-Stratum;
Sentinel-MVC;
external record producers;
external record consumers;
STN-LABZ systems;
explorer services;
website services;
future wallet functionality;
future contract interfaces.

Applications are not expected to inspect internal persistence files or reimplement consensus logic.

Instead, applications interact with Chain through defined protocol interfaces.

The current STNC implementation supports:

runnable node operation;
deterministic request and response framing;
concurrent clients;
long-lived sessions;
partial-frame handling;
Chain information retrieval;
accepted-record retrieval;
accepted-record traversal;
consumer synchronization cursors;
reorganization diagnosis and recovery;
mining operations;
transaction submission;
intelligence submission and checking;
deterministic identity-address derivation.

STNC does not transfer consensus authority to applications.

A successful submission means that Chain received and processed a protocol request.

It does not mean that an external application independently determined accepted Chain state.

11. Pending Submissions and Deterministic Block Construction

Canonical submissions enter the Chain through validated admission.

The lifecycle is:

Canonical Submission
-> Canonical Decode
-> Structural Validation
-> Network / Time Validation
-> Signature / Authority / Replay Validation
-> Canonical Identifier
-> Pending State

Pending entries are maintained in a bounded in-memory store.

The pending store:

rejects duplicates explicitly;
rejects new entries explicitly when capacity is exhausted;
does not silently evict accepted entries;
uses canonical identifiers as identity;
owns independent copies of stored content;
enumerates entries deterministically;
orders entries by ascending canonical identifier.

Block candidate construction selects pending content deterministically.

Identical valid pending input produces identical candidate content and identical work identifiers.

An empty pending set produces a canonical zero-transaction block candidate.

A canonical empty block contains:

zero transactions;
zero transaction-body length;
the deterministic empty-body commitment required by the protocol.

The absence of pending transactions does not prevent Chain from producing valid mining work.

Pending entries remain pending until an accepted block successfully incorporates them.

After successful acceptance and state transition, included entries are removed through exact canonical-identifier matching.

12. Persistence and Recovery

Stored data is treated as evidence.

It is not automatically trusted.

Startup recovery follows:

Stored Bytes
-> Decode
-> Validate
-> Reconstruct Accepted State

The implementation supports:

persistent Chain state;
atomic persistence behavior;
restart loading;
corrupt-state rejection;
trustworthy-prefix recovery;
full Chain reconstruction;
persistence-failure handling.

Failure to persist state must not incorrectly activate that state.

13. Peer-to-Peer Synchronization

STN Chain peers exchange Chain evidence.

The P2P implementation supports:

synchronization;
catch-up;
competing histories;
reorganization;
reconnect;
prefix recovery;
full rebuild;
independent peer-block validation;
bounded peer behavior.

The authority relationship is intentionally simple:

Peer != Authority
Seed != Authority

Bootstrap or seed nodes help locate network participants.

They do not gain consensus authority.

14. Typed Chain Addresses

STN Chain uses typed deterministic addresses to identify distinct classes of Chain objects.

The established namespaces are:

Prefix	Object Type
`stn0_`	Identity
`stnc0_`	Contract
`stnw0_`	Wallet

These namespaces are intentionally distinct.

The fundamental rule is:

Identity != Contract != Wallet

An identity address identifies an identity.

A contract address identifies a contract.

A wallet address identifies a wallet.

None of these object classes is interchangeable with another.

14.1 Address Derivation

An address identifier is derived deterministically using SHA-256 over the exact canonical source bytes supplied for derivation.

The address derivation layer does not silently add:

namespace text to the hash input;
domain text to the hash input;
an implicit NUL;
case normalization;
whitespace normalization;
salts;
native structure representation.

Canonicalization of source material belongs to the caller or the protocol defining that source.

Native in-memory structures are not canonical address input.

14.2 Address Meaning

An address identifies.

An address does not by itself establish:

ownership;
authentication;
signature validity;
authorization;
control;
economic entitlement;
consensus acceptance.

Those properties are established separately through the appropriate STN Chain mechanisms.

Address namespaces identify object type, not authority.

14.3 Address Representation

Full addresses are used for exact Chain operations.

User interfaces may display an abbreviated address where appropriate.

An abbreviated address is display-only.

It must not be accepted as a substitute for the canonical full address when exact Chain identification is required.

15. Contracts

STN Chain contracts are deterministic addressed agreements.

They are not arbitrary executable programs.

Contract objects use the stnc0_ address namespace.

Contract participants may be identified using stn0_ identity addresses.

Conceptually:

stn0_...
identifies a participant

stnc0_...
identifies an agreement

A contract is conceptually represented as:

Contract =
Participants

Required Fields
Authority
Sequence
Signatures
State

A contract may progress through explicitly defined states such as:

DRAFT
-> ISSUED
-> REVIEW
-> APPROVALS
-> ATTESTATION
-> EXECUTED

Defined contract actions may include:

CREATE_CONTRACT;
AMEND_CONTRACT;
APPROVE;
REJECT;
EXECUTE;
REVOKE;
CLOSE.

The Chain evaluates:

participant identity;
signer authority;
signatures;
current state;
permitted transition;
sequence;
duplicate approval prevention;
canonical contract representation.

STN Chain explicitly rejects the need for:

NO EVM
NO GENERAL-PURPOSE VM
NO ARBITRARY BYTECODE
NO ARBITRARY SCRIPT EXECUTION
NO GAS

Contracts are protocol-defined deterministic state machines, not unrestricted applications executing inside consensus.

A contract address does not replace participant identity, signatures, authority, or contract state.

Contract authority may represent multiple independent organizations.

An STN-LABZ contract participant is not automatically an STN Chain authority, and an STN Chain organizational action is not automatically an STN-LABZ organizational action.

Organizational identity must remain explicit.

16. Identity, Signatures, and Authority

Identity and authority are separate concerns.

Cryptographic validity asks:

Did this key sign this canonical content?

Authority validation asks:

Was this signer permitted to perform this action?

A valid signature does not automatically establish authority.

STN Chain identity architecture includes deterministic identity addresses using the stn0_ namespace.

The relationship is:

Address
identifies

Signature
authenticates

Authority
permits

Consensus
accepts

A stn0_ address provides a stable typed identifier.

It does not prove that the presenter controls the associated identity.

Cryptographic signatures establish possession of appropriate signing authority.

Authority remains separately governed by protocol-defined authority records and accepted Chain state.

The production identity architecture includes deterministic rules for:

key representation;
address derivation;
signature verification;
signer identity;
authority relationships;
organizational identity;
key rotation;
revocation;
replay protection;
deterministic authority evaluation.

Existing validation boundaries fail closed when required production providers are unavailable.

Organizational origin must not create implicit authority.

For example:

STN-LABZ originated STN Chain development

does not imply:

STN-LABZ may override STN Chain consensus

Likewise:

STN Chain transports STN-LABZ records

does not imply:

STN Chain controls the STN-LABZ Security Pipeline

Authority must always arise from explicit protocol or organizational rules.

17. Sentinel Intelligence Integration

Security intelligence is a primary application of STN Chain.

Sentinel-MVC may operate as both a producer and a consumer of STN Chain intelligence.

The relationship is bidirectional:

Sentinel-MVC ----STNC----> STN Chain
Sentinel-MVC <---STNC----- STN Chain

Sentinel-MVC may submit security observations and research information to Chain.

Sentinel-MVC may also retrieve and synchronize accepted intelligence from Chain.

This permits multiple Sentinel installations and other authorized producers to contribute observations while multiple consumers independently synchronize against the same accepted Chain history.

The responsibilities of each component remain distinct.

17.1 Sentinel-MVC

Sentinel-MVC may:

observe or receive security information;
construct Sentinel intelligence;
construct or provide authorized record content;
submit qualifying records through STNC;
retrieve accepted records;
maintain synchronization state;
recover synchronization after Chain reorganization.

Sentinel-MVC does not define STN Chain consensus.

Sentinel-MVC determines what it observed and what information it submits.

Chain determines whether a canonical submission satisfies the protocol rules required for acceptance.

17.2 Canonical Sentinel Intelligence

STN Chain defines a canonical Sentinel intelligence payload.

The version 1 payload contains:

version;
observation time;
severity;
classification;
source;
subject;
evidence digest.

The canonical Sentinel intelligence codec performs structural and schema validation.

It does not independently perform:

threat determination;
research classification;
evidence retrieval;
DNS resolution;
cryptographic verification;
authorization;
replay determination;
consensus acceptance.

Those responsibilities remain with the appropriate application, validation, cryptographic, authority, replay, or consensus layer.

17.3 Evidence Digest

Sentinel intelligence contains a cryptographic evidence digest.

The evidence digest allows a canonical Chain record to maintain a deterministic cryptographic relationship with supporting evidence without requiring arbitrary research artifacts to become part of consensus state.

A digest establishes correspondence with specific evidence bytes when those bytes are available.

It does not independently establish:

factual truth;
authority;
provenance;
interpretation;
consensus acceptance.

17.4 STN Chain

STN Chain acts as the deterministic consensus and record-verification layer.

It may:

receive canonical submissions;
validate them;
establish canonical identity;
maintain pending state;
include accepted records in deterministic block candidates;
secure accepted records through proof-of-work and consensus;
expose accepted records through STNC;
provide deterministic traversal and synchronization interfaces;
provide reorganization diagnosis and recovery interfaces.

STN Chain does not perform STN-LABZ security research.

It does not classify research targets merely because a record exists on-chain.

It does not replace the STN-LABZ Security Pipeline.

Acceptance of a Sentinel intelligence record means the record satisfied the applicable Chain rules and became accepted Chain state.

Acceptance does not mean Chain independently asserts the factual truth of the observation.

The governing principle remains:

Evidence does not determine truth. Consensus does.

18. STN-LABZ Threat API and Security Pipeline

STN Chain may participate in the STN-LABZ security research ecosystem through a defined organizational boundary.

18.1 STN-LABZ Threat API

The STN-LABZ Threat API acts as an ingestion boundary between qualifying STN Chain records and the STN-LABZ Security Pipeline.

Conceptually:

Accepted STN Chain Record
-> STN-LABZ Threat API
-> STN-LABZ Security Pipeline

The Threat API may retrieve or receive qualifying Chain records and translate them into the controlled input expected by the STN-LABZ research environment.

The Threat API remains an STN-LABZ system.

It is not part of STN Chain consensus.

18.2 STN-LABZ Security Pipeline

The STN-LABZ Security Pipeline receives qualifying records through the Threat API and performs STN-LABZ-specific research, qualification, review, correlation, or other authorized security processes.

That pipeline remains under STN-LABZ authority.

STN Chain does not control that process.

A complete example relationship is:

Security Observation
|
v
Sentinel-MVC
|
STNC
|
v
STN Chain
|
| accepted record
v
STN-LABZ Threat API
|
v
STN-LABZ Security Pipeline

Sentinel-MVC may independently continue consuming accepted Chain intelligence through STNC.

This allows STN Chain to participate in STN-LABZ security research without becoming STN-LABZ itself.

19. External Record Producers and Consumers

The Sentinel-MVC integration is one implementation of a broader Chain model.

STN Chain supports a model in which multiple authorized record producers and consumers may interact with the same accepted history.

Conceptually:

Producer A --------\
Producer B ---------\
Sentinel-MVC --------> STN Chain --------> Consumer A
Producer C ---------/ | Consumer B
|
+-------------> Sentinel-MVC
|
+-------------> STN-LABZ Threat API

The existence of Sentinel integration must not create a protocol assumption that all Chain records originate from Sentinel or STN-LABZ systems.

Likewise, the existence of the STN-LABZ Threat API must not create a protocol assumption that STN-LABZ is the only consumer of Chain records.

STN Chain must remain capable of functioning as an independent network.

20. Organizational Records

STN Chain is intended to support verifiable organizational and company records through its contract and record systems.

Potential uses include:

corporate agreements;
approvals;
attestations;
certifications;
internal organizational actions;
publication records;
authorized software releases;
other consensus-recognized corporate state.

Organizations using STN Chain remain organizationally distinct from the Chain.

For example:

STN-LABZ record
-> may exist on STN Chain

STN Chain record
-> does not become STN-LABZ property or policy merely by existing

The Chain is not intended to replace every conventional business system.

Instead, it provides a deterministic record where durable independent verification is valuable.

21. Economics

STN Chain economics remain intentionally incomplete.

The protocol direction includes:

no gas;
no Bitcoin-style halving assumption;
no requirement for an arbitrary lifetime coin ceiling;
protocol-valid participation rather than hardware class as the basis for mining validity;
economic wealth does not automatically grant organizational governance.

A broader economic principle remains under development:

Valid participation should receive compensation.

The intended system must not exclude legitimate participants merely because they operate low-hashrate hardware.

A miner producing protocol-valid work remains a valid participant regardless of whether that work originates from:

a dedicated ASIC installation;
a USB ASIC;
a GPU;
a desktop CPU;
an ARM system;
another supported mining platform.

Compensation mechanisms must distinguish:

Valid Participation
from
Control

Receiving compensation does not grant additional consensus authority.

Owning more native currency does not automatically grant organizational authority.

Hashrate does not create organizational authority.

Economic wealth does not supersede consensus rules.

21.1 Wallet Foundation

Wallets use the dedicated stnw0_ address namespace.

Identity and wallet are distinct:

stn0_...
Identity

stnw0_...
Wallet

An identity address is not itself a wallet.

A wallet address is not itself an identity.

The protocol may define explicit relationships between identities and wallets, but those relationships must not be inferred merely from the existence of either address.

Miner presentation of a stn0_ identity does not currently create:

a wallet;
a balance;
a reward;
a payment;
compensation entitlement.

Those semantics belong to the Economy protocol.

This allows identity transport and other economic prerequisites to be established before economic state is activated.

22. Economic and Legal Separation

Cryptocurrency introduces requirements beyond software architecture.

STN Chain must therefore preserve a clear economic and organizational boundary from STN-LABZ.

Potential STN Chain economic activity may include:

native currency issuance;
miner compensation;
network rewards;
treasury activity;
contract-driven payments;
exchange or transfer of native currency;
third-party economic participation.

These activities must not be casually mixed with STN-LABZ security research operations.

Before production economic activity begins, the appropriate requirements must be evaluated for the applicable jurisdiction and actual activity.

These may include:

trade-name registration;
business registration;
accounting separation;
tax treatment;
financial recordkeeping;
consumer disclosures;
cryptocurrency-specific requirements;
money transmission requirements where applicable;
securities or commodities considerations where applicable;
sanctions or other financial compliance obligations where applicable.

The existence of a cryptocurrency does not automatically determine which legal category applies.

The actual system behavior matters.

Therefore, legal classification must follow the implemented economic model rather than assumptions borrowed from unrelated blockchain systems.

Until that work is complete, STN Chain economics remain under development.

23. Platform Independence

STN Chain is platform agnostic.

Consensus-visible behavior must remain identical across supported platforms.

Platform-specific implementations may provide operating-system services behind defined abstractions, but platform differences must not alter:

canonical serialization;
identifiers;
hashing inputs;
validation;
consensus;
protocol behavior;
block interpretation;
transaction interpretation;
contract interpretation;
accepted Chain state.

Current and potential targets include:

Windows x64;
Linux x64;
Linux ARM64;
constrained ARM systems;
future purpose-built environments.

macOS is not currently an active platform target.

For identical canonical input and accepted history:

Windows Result
==
Linux Result
==
ARM Result

for every consensus-visible operation on qualified implementations.

A platform is not considered qualified merely because the code compiles.

Qualification requires demonstrated deterministic behavior.

Windows x64 provided the initial implementation and qualification environment.

Linux x64 has subsequently been brought into active network operation and qualification.

24. Current Implementation Status

As of September 21, 2026, STN Chain has progressed from foundational implementation into protocol feature development.

Established functionality includes:

canonical protocol representation;
deterministic validation;
SHA-256 identifiers;
Chain linkage;
proof-of-work;
deterministic difficulty behavior;
exact cumulative-work comparison;
deterministic fork selection;
atomic reorganization;
persistence and recovery;
P2P synchronization;
automatic P2P orchestration;
platform abstraction;
STNC v2;
runnable node operation;
concurrent STNC clients;
deterministic mining templates;
solved-work validation;
bounded deterministic pending state;
validated pending admission;
deterministic pending-based block candidates;
canonical empty-block construction;
accepted-block pending cleanup;
STN-Chain to STN-Stratum integration;
production identity and signatures;
scoped authority;
authority grants;
revocation;
identity rotation;
replay protection;
production record integration;
accepted-record lookup;
accepted-record traversal;
consumer synchronization cursors;
reorganization diagnosis;
consumer recovery planning;
storage evolution;
Linux x64 Chain operation;
external CPU mining;
deterministic typed Chain addresses;
live identity-address derivation;
miner identity transport;
canonical Sentinel intelligence support.

The live Chain is capable of:

STNC Submission
-> Validation
-> Pending State
-> Candidate Construction
-> STN-Stratum
-> Mining
-> Accepted Block
-> Persistence
-> Accepted Chain State

The current feature-development phase is Phase 18, the Contract Engine.

Identity-address infrastructure and other prerequisites for contracts and the later Economy phase may be established before those later semantics become active.

25. Development Roadmap

STN Chain development proceeds through bounded phases with qualification evidence.

Foundational Chain, consensus, storage, P2P, STNC, mining, Stratum integration, difficulty, production identity, authority, production records, and storage evolution have established the network foundation.

Additional platform work has established Linux x64 operation alongside the original Windows implementation.

The active feature phase is:

Phase 18 — Contract Engine

Phase 18 introduces deterministic addressed agreements.

The Contract Engine builds upon established identity and typed-address infrastructure.

Contract objects use the stnc0_ namespace.

Participants may use stn0_ identity addresses.

Contract behavior remains native, bounded, and deterministic.

Phase 18 does not introduce:

an EVM;
a general-purpose virtual machine;
arbitrary bytecode;
arbitrary scripts;
gas.

The following major feature phase is:

Phase 19 — Economy

Phase 19 will define authoritative economic state and compensation semantics.

Foundational work may be staged before Phase 19, including:

identity transport;
stnw0_ wallet addressing;
miner identity;
contract addressing;
protocol boundaries required for future economic state.

Staging these prerequisites does not give them economic meaning before the Economy protocol defines that meaning.

Phase 19 is expected to address protocol-defined matters including:

wallets;
identity-to-wallet relationships;
balances;
miner compensation;
economic records;
issuance;
transfers;
contract settlement;
other deterministic economic state.

Development continues through small, bounded increments rather than speculative rewrites.

27. Authority Boundaries

STN Chain relies on explicit authority boundaries.

Miner
-> supplies proof

Stratum
-> coordinates mining

Peer
-> supplies Chain evidence

Record Producer
-> supplies canonical records

Record Consumer
-> consumes accepted records

Sentinel-MVC
-> produces and consumes security intelligence

STN-LABZ Threat API
-> ingests qualifying Chain records

STN-LABZ Security Pipeline
-> performs STN-LABZ security research

STN Chain
-> validates protocol evidence
-> applies consensus
-> determines accepted Chain state

None of these roles should silently acquire the authority belonging to another.

In particular:

Address
!=
Authentication

Identity
!=
Wallet

Identity
!=
Contract

Miner
!=
Consensus Authority

Stratum
!=
Consensus Authority

Sentinel-MVC
!=
Consensus Authority

STN-LABZ Security Policy
!=
STN Chain Consensus

STN Chain Consensus
!=
STN-LABZ Organizational Governance

STN-LABZ Threat API
!=
STN Chain Protocol Authority

STN Chain Native Currency Ownership
!=
Organizational Governance Authority

Clear boundaries make deterministic systems easier to understand and harder to misuse.

28. Governing Principle

STN Chain exists to provide independently verifiable state without requiring trust in a single participant or originating organization.

The governing model is:

Evidence
-> Canonical Representation
-> Deterministic Validation
-> Deterministic Consensus Rules
-> Accepted State

The protocol does not ask participants to trust a miner.

It does not ask participants to trust a peer.

It does not ask participants to trust STN-Stratum.

It does not ask participants to trust STN Core.

It does not ask participants to trust Sentinel-MVC.

It does not ask participants to trust STN-LABZ.

It does not ask participants to trust a storage file.

It asks every compliant node to evaluate the same evidence using the same deterministic rules.

STN-LABZ may contribute evidence.

Sentinel-MVC may contribute and consume evidence.

Miners may contribute proof.

Peers may contribute history.

External organizations may contribute or consume records.

Contracts may establish deterministic agreements.

Future wallets and economic systems may establish protocol-defined economic state.

None of these components independently determines accepted Chain state.

Consensus determines what becomes accepted Chain state.

That is the foundation of STN Chain.

Consensus decides.