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Verified flex charter

Status: Shipped (API + in-app surfaces) on devnet-oriented stacks with the backtest + deploy gate. Flex cards are not screenshot exports or marketing claims — they are immutable references to a run_id that passed the deploy gate at publish time.

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What a flex card is

A flex card is a published record that:
  • Points to a single completed backtest run_id (immutable after publish)
  • Stores a frozen strategy summary and equity snapshot hash from the run manifest
  • Records the publisher wallet and manifest version (engine_version)
  • Exposes a deep link (/lite/flex/:flex_card_id) for sharing — not an unverified image export
Flex cards exist so affiliates and strategy builders can share credible context without implying guaranteed future performance.

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Publish path (honest scope)

  1. Run a backtest via the v2 backtest APIs until status is completed.
  2. Call deploy gate (POST /api/v2/backtest/runs/:run_id/deploy-gate/check). Publishing is blocked if the gate fails (403 with DEPLOY_GATE_FAILED).
  3. Authenticated publisher calls POST /api/v2/social/flex-cards with run_id, title, and optional description.
  4. Share the returned deep link or Pro/Lite flex surfaces.
[!WARNING] A passing backtest gate proves the historical simulation met QuantDesk floors at publish time. It does not predict live trading results, funding regimes you have not seen, or future market structure.

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Proof badges (server-verified only)

Badges are computed on the backend and returned in API payloads. The UI renders badges only from the server badges array — never client-inferred. Entries without flex-card linkage show no proof badges on the leaderboard — we do not imply verification from PnL rank alone. See Proof badges glossary for integrator and UX detail.

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Limitations (read this before sharing)

  • Backtest ≠ live. Simulated fills, historical oracle paths, and OOS splits do not guarantee forward performance.
  • Gate at publish time. Metrics are frozen to the manifest version stamped on the card; re-running with different data or costs is a different run_id.
  • No endorsement. QuantDesk does not endorse strategies published as flex cards; badges describe verification mechanics, not investment advice.
  • Devnet vs mainnet. Confirm environment labels in-app before treating proof as production-grade.

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Where to view flex cards

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API reference

Field-level schemas: Swagger at /api/docs/ on the backend gateway. Narrative: V2 API — Social.