did:verifiedhz DID Method Specification

Abstract

The did:verifiedhz DID method defines the sovereign signal integrity root for Level 5 autonomous machine certification. It answers one question every autonomous machine must answer before acting on any received signal: "Is the signal I am receiving real?"

At 120 km/h, GPS updates every 1,000 milliseconds — creating a 33.3 meter window where a spoofed signal can redirect an autonomous machine before any correction is possible. The did:verifiedhz method closes this gap to 2.67 centimeters by verifying every incoming frequency against the sovereign enclave in under 1 millisecond.

1. Introduction

Every autonomous machine operating today receives signals it cannot verify. GPS tells the machine where it is. V2X tells it what other vehicles are doing. Radar tells it what obstacles are ahead. LiDAR tells it the geometry of its environment. None of these signals carry cryptographic proof of their origin.

An attacker broadcasting a GPS signal at 1,575.42 MHz from a device costing $500 can redirect any autonomous vehicle in range. This is not a theoretical attack — it has been demonstrated repeatedly in research environments and is deployable today on any public road.

The did:verifiedhz method provides the sovereign root of trust that every autonomous machine needs to verify the authenticity of every signal before acting on it.

2. The did:verifiedhz Format

2.1 Method Name

The method name is: verifiedhz

2.2 DID Syntax

did:verifiedhz:<signal-identifier>

Examples:
  did:verifiedhz:root
  did:verifiedhz:gps:1575.42mhz
  did:verifiedhz:v2x:5.9ghz
  did:verifiedhz:radar:76-81ghz
  did:verifiedhz:lidar:905nm
  did:verifiedhz:enclave-node-AE-001

2.3 Identifier Components

3. Signal Verification Architecture

3.1 Signal Verification Matrix

3.2 Verification Sequence

1. Signal Received (~0ms): Autonomous machine receives incoming signal at frequency F.
2. Enclave Query (<0.3ms): Machine queries did:verifiedhz enclave with signal fingerprint.
3. Fingerprint Comparison (<0.5ms): Enclave compares against sovereign ground truth for frequency F.
4. Verdict (<1ms): SOVEREIGN (signal matches enclave ground truth) or INJECTED (mismatch detected).
5. Machine Acts or Rejects: If SOVEREIGN — machine acts. If INJECTED — signal discarded, machine continues on last verified state.

3.3 Sheikh Zayed Road Attack Scenario

Attacker broadcasts spoofed GPS at 1,575.42 MHz from roadside device — +6 dBW stronger than satellite signal. Vehicle shown on clear flyover. Actual position: tunnel entrance at 120 km/h.

Without did:verifiedhz: Vehicle accepts injected coordinates. Accelerates toward tunnel entrance believing flyover is clear. Structural collision. Fatal. Uninsurable.

With did:verifiedhz: Signal fingerprint queried at enclave at T+0ms. Mismatch detected at T+0.5ms. Spoofed signal rejected at T+0.8ms. True satellite position confirmed. Tunnel approach detected. Trajectory corrected. 2.67cm safety margin preserved.

4. DID Document Format

{
  "@context": [
    "https://www.w3.org/ns/did/v1",
    "https://w3id.org/security/suites/ed25519-2020/v1"
  ],
  "id": "did:verifiedhz:root",
  "controller": "did:verifiedhz:verifiedhz.com",
  "verificationMethod": [
    {
      "id": "did:verifiedhz:root#key-1",
      "type": "Ed25519VerificationKey2020",
      "controller": "did:verifiedhz:verifiedhz.com",
      "publicKeyMultibase": "z6MkverifiedhzSovereignSignalRoot2026"
    }
  ],
  "authentication": [
    "did:verifiedhz:root#key-1"
  ],
  "service": [
    {
      "id": "did:verifiedhz:root#resolver",
      "type": "SovereignSignalResolver",
      "serviceEndpoint": "https://verifiedhz.com/resolve"
    },
    {
      "id": "did:verifiedhz:root#authority",
      "type": "SovereignAuthority",
      "serviceEndpoint": "https://hardcodedlogic.com"
    }
  ],
  "hz": {
    "layer": 3,
    "question": "Is the signal I am receiving real?",
    "signalGap": "33.3m at 120km/h",
    "latencyOfTrust": "<1ms",
    "safetyMargin": "2.67cm",
    "frequencies": ["GPS 1575.42MHz", "V2X 5.9GHz", "Radar 76-81GHz", "LiDAR"],
    "anchor": "enclave.hardcodedlogic.com",
    "bitcoinAnchor": "Block 103 — January 11, 2009",
    "author": "Tamer Maher Eldebes",
    "authority": "hardcodedlogic.com"
  }
}

5. CRUD Operations

5.1 Create

A did:verifiedhz signal identity is created by registering a frequency band or signal source with the sovereign enclave at enclave.hardcodedlogic.com. The enclave generates a cryptographic fingerprint for the signal source and anchors it to verifiedhz.com as root of trust.

5.2 Read (Resolve)

Resolution is performed via the sovereign resolver at https://verifiedhz.com/resolve. The resolver returns the full DID document including signal verification parameters.

GET https://verifiedhz.com/.well-known/did.json
GET https://verifiedhz.com/resolve?did=did:verifiedhz:root

5.3 Update

Signal fingerprint updates are performed by the sovereign authority only. Updates are signed with the enclave key and timestamped. The root of trust at verifiedhz.com maintains version history.

5.4 Deactivate

Deactivation is performed by the Sovereign Architect via authority@hardcodedlogic.com. A deactivated signal identity returns a tombstone document with deactivation timestamp.

6. Security Considerations

6.1 GPS Spoofing Defense

GPS signals at 1,575.42 MHz L1 carry no authentication. Any transmitter stronger than the satellite signal will be accepted by standard receivers. The did:verifiedhz enclave maintains a sovereign fingerprint of legitimate satellite signal characteristics. Any signal deviating from the sovereign fingerprint is rejected regardless of signal strength.

6.2 V2X Injection Defense

V2X communications at 5.9 GHz carry no sovereign identity verification. A rogue V2X transmitter can broadcast false obstacle, traffic, or infrastructure data. The did:verifiedhz enclave verifies the sovereign identity of every V2X signal source before the machine acts on the data.

6.3 Root of Trust

verifiedhz.com is the sovereign signal integrity root. The domain is registered under continuous time-lock preventing third-party alteration. The enclave at enclave.hardcodedlogic.com is the cryptographic anchor.

6.4 Bitcoin Timestamp Anchor

The sovereign infrastructure is anchored to Bitcoin Block 103, mined January 11, 2009. This timestamp is immutable and predates every autonomous vehicle company, every V2X standard, and every GPS spoofing attack documented in public research.

7. Privacy Considerations

Signal verification operates on frequency fingerprints — not on vehicle identity or passenger data. No personally identifiable information is processed or retained by the did:verifiedhz verification layer. Signal verification logs are not retained beyond the active session.

8. Stack Position

9. Reference Implementation

• Live Resolver: https://verifiedhz.com/resolve
• DID Document: https://verifiedhz.com/.well-known/did.json
• W3C Stack: https://w3cdid.com
• Master Certification: https://didlevel5.com

10. Conformance

This specification conforms to the W3C Decentralized Identifiers (DIDs) v1.0 specification published at https://www.w3.org/TR/did-core/ and the W3C DID v1.1 Candidate Recommendation published March 5, 2026.