@helm-protocol/plugin-openttt

@elizaos/plugin-openttt

OpenTTT Proof-of-Time plugin for ElizaOS — temporal attestation for AI agent transactions.

What it does

Every agent trade or transaction carries a timestamp — but timestamps can be forged. This plugin attaches a Proof-of-Time (PoT) token to each transaction by querying four independent time sources (NIST, Apple, Google, Cloudflare) and computing a consensus timestamp. The result is a tamper-evident temporal attestation that any counterparty can verify.

Under the hood, PoT tokens pass through a 3-layer integrity pipeline before being issued, ensuring the attested time is both accurate and unforgeable.

Install

npm install @elizaos/plugin-openttt

@elizaos/core must be installed as a peer dependency in your ElizaOS project.

Register the plugin

import { openTTTPlugin } from "@elizaos/plugin-openttt";
import { AgentRuntime } from "@elizaos/core";

const runtime = new AgentRuntime({
  // ...your config
  plugins: [openTTTPlugin],
});

Usage

Before a trade — generate a PoT token

The agent will call GENERATE_POT automatically when it detects trade intent, or you can trigger it explicitly:

User: Generate a proof of time before I submit this swap
Agent: Proof-of-Time generated successfully.

  Timestamp : 2026-03-17T07:00:00.000Z
  Sources   : NIST, Apple, Google, Cloudflare
  Consensus : ✓ CONSENSUS
  Deviation : 87ms
  Nonce     : 6f70656e7474740a3d2f...

After a trade — verify the PoT token

User: Verify the proof of time on my last transaction
Agent: Proof-of-Time verification PASSED.

  Issued    : 2026-03-17T07:00:00.000Z
  Age       : 8s
  Sources   : NIST, Apple, Google, Cloudflare
  Consensus : ✓ CONSENSUS
  Deviation : 87ms

Automatic coverage check

The potEvaluator runs automatically on any message containing trade keywords (trade, swap, buy, sell, submit, execute, etc.) and warns if a transaction is missing PoT coverage:

[POT_COVERAGE_EVALUATOR] ⚠ No Proof-of-Time found for this transaction.
Consider calling GENERATE_POT before submitting trades.

API

Plugin object

import { openTTTPlugin } from "@elizaos/plugin-openttt";
// openTTTPlugin.actions    → [generatePot, verifyPot]
// openTTTPlugin.providers  → [timeProvider]
// openTTTPlugin.evaluators → [potEvaluator]

Standalone utilities

import { getVerifiedTime } from "@elizaos/plugin-openttt";

const vt = await getVerifiedTime();
// {
//   timestamp: 1742194800000,
//   sources: ["NIST", "Apple", "Google", "Cloudflare"],
//   consensus: true,
//   deviation_ms: 87
// }

Types

import type { PoTToken, VerifyResult, VerifiedTime } from "@elizaos/plugin-openttt";

Time sources

Source	Endpoint
NIST	https://time.nist.gov
Apple	https://www.apple.com
Google	https://www.google.com
Cloudflare	https://www.cloudflare.com

Consensus is reached when all responding sources agree within 2 seconds. If fewer than 2 sources respond, the plugin falls back to local system time and sets consensus: false.

Precision disclaimer: HTTP Date headers provide approximately 1-second precision. This is sufficient for trade-ordering attestation at human timescales. For sub-second ordering guarantees (e.g. high-frequency MEV sequencing), use the full OpenTTT SDK with on-chain anchoring instead of this HTTP-based provider.

License

MIT — see LICENSE