ASTP

The four principles AI agents must satisfy.

Every AI agent action in nxtlinq must satisfy four governance criteria before it executes: Attributable, Scoped, Time-bound and Provable. ASTP closes the accountability gap between human intent and machine action at the identity level, not the policy layer.

ASTP

How ASTP governs every agent action

Every agent action satisfies all four, or it does not execute.

Human
Authenticates; HIT issued by existing IAM (Okta, Entra, Ping)
A · Attribution
HIT cryptographically links the human to all downstream agents
S · Scope
AIT issued with exact task, resource and action limits
T · TTL
Micro-runtime TTL: the token expires at task completion
P · Proof
Hash-anchored blockchain commit, immutable and replayable

IAM governs logins.Not what comes after.

Traditional identity infrastructure was designed for humans logging into systems. It was never designed for autonomous agents acting on behalf of humans, at scale, across systems, without a human in the loop. ASTP was built for exactly that gap.

Four principles.Zero accountability gaps.

Every identity issued by nxtID adheres to the ASTP framework, the governing standard that ensures every agentic action is attributable, scoped, time-bound and provable.

  1. Attributable

    Every action traces to a human

    The HIT (Human Identity Token) creates an unbreakable cryptographic link between every agentic action and the human principal who delegated authority. There is no anonymous AI execution in nxtlinq.

    • HIT issued at authentication via your existing IAM
    • Delegation chain preserved across all agents and sub-agents
    • Cross-system attribution with zero gaps, even in multi-agent workflows
    • Every action carries the originating human's cryptographic signature
  2. Scoped

    Least privilege at the agent level

    Every AIT (Agent Identity Token) is bound to a specific task, resource set and action type. Agents cannot act outside their explicit authorization, regardless of what the underlying IAM permits.

    • Task-specific permission binding, no inherited broad IAM roles
    • Resource-level constraints defined at AIT issuance
    • Action-type whitelisting per execution context
    • Out-of-scope requests blocked and logged before execution
  3. Time-bound

    No persistent credentials for agents

    AITs carry explicit expiry enforced at the platform level. Ephemeral Execution Contexts run on micro-runtime TTLs and tokens expire at task completion, removing persistent credential risk.

    • Micro-runtime TTL down to millisecond precision
    • Automatic revocation on task completion or hard time limit
    • No long-lived service accounts or API keys for agents
    • A compromised token is already expired
  4. Provable

    Cryptographic proof of every action

    Every identity event, delegation step and execution outcome is anchored to a decentralized cryptographic ledger. No PII is stored on-chain, only hash-based commitments that enable deterministic audit replay.

    • Hash-anchored audit trail, tamper-evident by design
    • Deterministic replay for forensic investigation
    • Zero PII on the ledger, only cryptographic commitments
    • Independently verifiable without vendor access

From human intent to governed execution.

ASTP is not a policy layer added after the fact. It is the execution architecture, built into every identity transaction before any agent action is permitted.

  1. No rip-and-replace

    Human authenticates

    The human principal signs in through your existing IAM provider: Okta, Microsoft Entra ID, Ping Identity, or any SAML/OIDC system. nxtlinq does not replace your IAM.

  2. A · Attributable

    HIT issued

    nxtID issues a Human Identity Token linked to the authenticated principal. It becomes the root of accountability for every downstream agent action in the session.

  3. S · Scoped

    AIT issued

    When an agent is invoked, nxtID issues an Agent Identity Token scoped to the task: specific resources, allowed action types, nothing more. The AIT is chained to the parent HIT.

  4. T · Time-bound

    TTL enforced

    The AIT carries a hard expiry enforced at the platform level. The credential is valid only for the task and is revoked automatically at completion.

  5. Enforcement before execution

    Agent executes within scope

    The agent reads, writes, calls APIs and invokes tools within the bounds of its AIT. Any out-of-scope attempt is blocked before execution and logged to the audit ledger.

  6. P · Provable

    Proof recorded

    Every governance event (authorization, scope evaluation, execution outcome, token expiry) is hashed and committed to the immutable ledger. No PII on-chain. Full forensic replay on demand.

Two tokens.Complete accountability.

ASTP is implemented through nxtID's dual-token model. Together the two tokens form the cryptographic foundation for every guarantee the framework provides.

HIT

Human Identity Token

The human anchor of the delegation chain

Issued at authentication via your existing IAM provider: a cryptographically signed record of the human authorizing agentic activity, the root of all attribution under ASTP.

Issued by
Your IAM provider (Okta, Entra ID, Ping, Google, SAML)
Validity
Session-scoped; revocable at any time by the enterprise
Anchors to
All downstream AITs and execution contexts
On ledger
Hash commitment only, no PII on-chain
ASTP role
Satisfies A: every action is Attributable to this principal
AIT

Agent Identity Token

The agent's governed execution credential

Issued to each AI agent at task initiation, linked to the originating HIT, scoped to a specific task and resource set, with a hard expiry enforced at the platform level.

Linked to
Parent HIT, full delegation lineage preserved
Scope
Task-specific permissions, resource constraints, action types
TTL
Micro-runtime: expires at task completion or hard time limit
Spawns
Ephemeral Execution Contexts (sub-millisecond identities)
ASTP role
Satisfies S (Scoped) and T (Time-bound)

Traditional IAM wasn't built for agents.

ASTP does not replace your IAM. It governs what happens after authentication, in the layer your IAM cannot see.

QuestionTraditional IAM for AI agentsWith ASTP
AttributionWho is the agent acting for?Agents run under shared service accounts, with no human attributionEvery agent action traces to a named human principal via the HIT chain
ScopeWhat can the agent reach?IAM roles grant broad permissions, far more than agents needThe AIT scopes each agent to exact task permissions, least privilege enforced
CredentialsHow long does access last?Credentials are long-lived: one compromise means persistent exposureMicro-runtime TTLs: credentials expire at task completion
EvidenceWhat is recorded?Logs record events, not authorization scope or human delegationBlockchain-anchored proof of every governance event, not just logs
EnforcementWhat stops an out-of-scope action?No enforcement for what agents do after they authenticatePolicy enforcement before execution: out-of-scope actions are blocked
LineageCan sub-agents be traced?Multi-agent workflows have no lineage; sub-agents are invisibleSub-agent delegation chains preserved end-to-end across workflows
AuditWho authorized this AI action?Compliance teams cannot answer the questionAuditors get deterministic replay: full forensic reconstruction on demand

Auditors satisfied by design.

Frameworks that govern AI deployments, such as HIPAA, SOX and FedRAMP, ask for what ASTP delivers: attribution, scope enforcement, time-bounded access and cryptographic proof. When auditors ask, the evidence is already there.

A

Who authorized it?

The HIT delegation chain gives cryptographic attribution to the named human principal, meeting the audit requirement for human accountability over AI actions.

S

What was it allowed to do?

The AIT scope is captured at issuance, so auditors see exactly which permissions were granted for each task, not a broad IAM role.

T

How long did access last?

The TTL is recorded and enforced, so access duration is provable from the audit ledger. No persistent credentials to explain to regulators.

P

Can you prove it?

Blockchain-anchored cryptographic commitments: tamper-evident, independently verifiable and deterministically replayable for any governance event.

Backed by issued US patents.

  1. IssuedUS 12,418,417AI Agent Lifecycle Management and Authentication Systems using Decentralized Cryptographic AnchoringGoverns identity and trust scoring for autonomous AI agents.
  2. IssuedUS 12,574,251Blockchain-Based Platform-Independent Personal Identity ProfilesIntroduces the Human Identity Token (HIT) for secure cross-platform identity.
  3. PendingUS 19/314,928Blockchain-Based AI Agent Life Cycle Management (Continuation)Expands framework with an identity-anchored, audited learning loop.
  4. PendingUS 19/370,524Blockchain-Based AI Agent Life Cycle Management (Continuation)Adds tokenized feedback (TDPs) and human-in-the-loop reinforcement mechanisms.
  5. PendingUS 19/642,504Blockchain-Based AI Agent Life Cycle Management (Continuation)Extends authenticating AI agents for accessing services/resources based on ephemeral context and lineage.
  6. PendingUS 19/532,638Blockchain-Based Platform-Independent Personal Identity ProfilesExpands patent coverage around a reusable digital identity layer that allows users to carry trusted credentials, reputation, and verification across ecosystems.

Accountability before autonomy.

In 15 days: deploy the ASTP framework in your environment with no rip-and-replace. It works with your existing IAM and agent infrastructure from day one. The full patent portfolio is on the compliance page.