Per-Agent Attribution

The Problem

Your audit log shows “platform accessed PHI” or “service account executed trade”—but which agent? Which case worker authorized the PHI pull? Which trader approved the transaction? When regulators ask, you reconstruct from side channels, correlate timestamps, interview team members.

That’s not compliance. That’s forensics.

• Agents share credentials — service accounts, API keys, platform tokens
• Logs show the account — not which agent or who authorized it
• Attribution requires detective work — cross-reference logs, reconstruct from memory
• Regulators expect proof — HIPAA, SOX, MAS SAFR demand evidence of authorization, not reconstruction

When an incident occurs or an auditor asks “who authorized this action?”, you have two choices: spend hours reconstructing from logs, or admit you don’t have proof.

Why This Matters Now

Agents operate at machine scale. One service account might represent dozens of agents, each authorized by different humans under different mandates. By the time you reconstruct who did what, the damage is done—or the audit fails.

• Crypto.com challenge: “Agents share one credential, so every trade reads as the account” (job description, 2026)
• Elevance audit gap: “The record shows the platform acted, not the case worker who authorized the PHI pull” (healthcare payer, 2026)
• HIPAA requirement (45 CFR § 164.312(b)): Must maintain proof of who authorized data access—not just that access occurred

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How Affinidi Enables Per-Agent Attribution

Traditional systems authenticate at the account level: API keys, service accounts, platform tokens. When multiple agents share one account, the log shows “account acted”—not which agent or who authorized it.

Affinidi moves attribution to the agent level: each agent gets a DID, every action logs the agent’s identity and the human who authorized it.

The shift:

OLD: Service account → Action → Log (who: "platform", what: "data accessed") → Investigation
NEW: Agent-42 + Alice's authorization → Action → Log (who: "Agent-42 authorized by Alice") → Audit-ready

Every agent action flows through the Agent Gateway, which:

1. Verifies agent identity — Which specific agent is making this request?
2. Links to human authorizer — Who gave this agent permission to act?
3. Logs both identities — Agent DID + authorizer’s signed mandate
4. Generates cryptographic proof — Immutable record that this agent acted under this authorization
5. Makes attribution automatic — No detective work, no log archaeology

Technical Foundation

• Agent Gateway issues each agent a unique DID—no more shared credentials
• Authorization binding: Every agent action references the human authorizer’s signed mandate (a W3C Verifiable Credential)
• Trust Registry (TRQP): Stores authorization mandates so you can query “who authorized Agent-42?” in real time
• Cryptographic audit trail: Every action logged with agent DID + authorizer identity, tamper-evident
• Elements Services: Issues W3C credentials for agent identities and authorization proofs

Technical Deep Dive What are Decentralized Identifiers (DIDs)? DIDs give each agent a cryptographic identity—making attribution automatic instead of manual.

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Real-World Applications

The same agent-level attribution pattern works across industries—just different consequences when you can’t prove who authorized what.

Healthcare: PHI access logs show “platform acted” with no proof of which case worker authorized it. With Affinidi, each agent gets a DID, every PHI access logs agent identity + case worker who authorized. HIPAA-compliant audit trails—regulators see who authorized, not just that access occurred.

Financial Services: Trading audit shows account executed trades, no proof of which agent or trader authorized. Agent Gateway links each trade to specific agent DID + trader’s signed authorization. Regulatory reports prove which agent executed which transaction under whose authority.

Crypto & Payments: Every transaction reads as the platform account—regulatory audits require agent-level proof. Per-agent DIDs make every transaction attributable to specific agent + approver. Compliance-ready logs without detective work.

Enterprise IT: Change management logs show service account modified production, not which agent or who approved. Agent identity + approval workflow logged cryptographically at action time. Incident response identifies exact agent and approver—no log archaeology.

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Why Affinidi (Not Just Shared Accounts)

Audit granularity matters:

• Affinidi: Per-agent identity with authorizer proof
• Alternatives: Per-account (which agent? unknown)

Authorization proof matters:

• Affinidi: Cryptographic link to human authorizer
• Alternatives: Log entry or reconstructed from side channels

Incident response matters:

• Affinidi: Identify exact agent + authorizer instantly
• Alternatives: Investigate account activity, cross-reference logs

Compliance alignment:

• Affinidi: HIPAA/SOX compliant (proof of authorization)
• Alternatives: Forensic reconstruction (not auditor-ready)

Revocation impact:

• Affinidi: Disable one agent without affecting others
• Alternatives: Rotate account credentials, impacts all agents

What this means:

• Generic service accounts were built for human users, not fleets of autonomous agents
• Shared API keys make every agent indistinguishable—the log shows the key acted, not which agent
• Legacy IAM authenticates accounts, not agents—when one account represents 50 agents, attribution is manual

Affinidi provides per-agent attribution: each agent gets a DID, every action logs the agent and the human authorizer, compliance is automatic not forensic.

Proof It Works

• HIPAA alignment: Proof of authorization (who approved PHI access) is cryptographically logged, not reconstructed
• SOX compliance: Audit trails show which agent made financial changes and who authorized them
• Regulatory-ready: When an auditor asks “who authorized this?”, the answer is in the log—not in your head

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Get Started

Whether you’re a developer prototyping agent identity, a compliance team evaluating audit-ready trails, or an enterprise planning attribution at scale—there’s a path in.

• Developers — build your first agent with per-agent attribution in minutes with Agent Gateway, then start coding in the Affinidi Portal.
• Compliance & security — see how cryptographic attribution works with Verifiable Credentials, or book a demo.
• Enterprises — planning attribution for hundreds or thousands of agents? Talk to our team about custom deployment.

New to the underlying tech? Start with Decentralized Identifiers, then explore Verifiable Credentials.

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Related Resources

Technical Deep Dives

• Decentralized Identifiers (DIDs) - How agents get unique identities
• Verifiable Credentials - Cryptographic authorization proofs

Related Solutions

• Cross-Org Agent Trust - Agents that transact across company boundaries
• Runtime Agent Governance - Control before action, not logs after