12.6 “Zero Trust” (Policy-Heavy) Systems

What PTERI Replaces — Identity & Policy Engines

When trust is cryptographic and deterministic, probabilistic policy layers become unnecessary.

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Policy-Driven Model vs PTERI

Category	Traditional Model	Problems	PTERI Replacement
Identity Layer	Identity providers	Complex configuration	Proof-based verification
Authorization Model	Policy engines	Probabilistic outcomes	Deterministic yes/no outcomes
Risk Controls	Risk scoring & heuristics	Hard to audit	Minimal policy surface
Automation Resilience	Human-in-the-loop safeguards	Fragile under automation	Machine-verifiable authority
Trust Model	Policy-based enforcement	Subjective interpretation	Trust enforced by math

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Core Principle

"Trust is enforced by math, not policy."

Authorization becomes a binary cryptographic decision — not a probabilistic evaluation.

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What PTERI Does Not Replace

PTERI replaces trust mechanisms — not applications.

PTERI Is Not	Why
A UI framework	It does not define user interfaces
A business logic engine	It does not encode application workflows
A compliance department	It does not replace regulatory obligations

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Boundary Definition

PTERI provides cryptographic authority and verification primitives. Applications, policies, and compliance layers remain external.

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Summary Table

Legacy System	Status with PTERI
Passwords	Obsolete
OTP / SMS	Obsolete
API Keys	Obsolete
Custodial wallets	Obsolete
Token-based identity	Unnecessary
Risk-based auth	Unnecessary

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