{
  "tool_id": "art-580-15c3-3a-note-h-margin-debit",
  "kernel_id": "art-580-15c3-3a-note-h-margin-debit",
  "display_name": "15c3-3a Note H Margin-Debit Computation",
  "tool_version": "1.0.0",
  "mandate_type": "analytics_mandate",
  "purpose": "Recomputes whether a margin debit related to a broker-dealer's customer transactions in U.S. Treasury securities qualifies for inclusion in the Exchange Act Rule 15c3-3 customer or PAB reserve formula under Note H to Exhibit A (Rule 15c3-3a), and if so computes the debit amount. Note H permits that debit only once a registered clearing agency's rules satisfy several Commission-approved conditions and the margin itself comes from a permitted source. This kernel checks each condition as its own declared boolean, cited to the specific Note H subsection it comes from: Commission approval and published notice that Note H is satisfied for the named clearing agency; a separate, gross, per-customer margin calculation; cash margin invested only in short-term U.S. Treasury securities; margin held in a segregated Special Clearing Account at a Federal Reserve Bank or an FDIC-insured bank; and a system for returning excess margin no longer required. The source of the margin is separately checked against Note H's three permitted sources, including the narrow path where a broker-dealer's own Treasury securities may be used only if the customer lacked sufficient margin of its own and the broker-dealer recouped the advance by the next business day. The verdict is INCLUDABLE, NOT_INCLUDABLE, or INDETERMINATE, and INDETERMINATE covers both an unstated condition and missing margin-required or margin-on-deposit figures, neither of which is guessed toward either other verdict. Where INCLUDABLE, the debit is the smaller of the margin required and the margin actually on deposit, since Note H permits a debit no larger than either figure. Money is fixed point in integer minor units throughout with two-decimal display. Cites Exchange Act Rule 15c3-3a Note H by subsection and the SEC's Treasury-clearing compliance dates (cash trades by 2026-12-31, repo by 2027-06-30), each dated for re-verification against primary text. This kernel is a narrow sibling to the shipped art-396 15c3-3 reserve-formula tool: it recomputes only the Note H margin-debit sliver, never the full Items 1-14 reserve formula, and never edits art-396. Not legal or regulatory advice, and whether a clearing agency's rules and Commission notice actually satisfy Note H is for the broker-dealer's own compliance and financial-operations review.",
  "control_description": "Recomputes whether a margin debit related to a broker-dealer's customer transactions in U.S. Treasury securities qualifies for inclusion in the Exchange Act Rule 15c3-3 customer or PAB reserve formula under Note H to Exhibit A (Rule 15c3-3a), and if so computes the debit amount. Note H permits that debit only once a registered clearing agency's rules satisfy several Commission-approved conditions and the margin itself comes from a permitted source. This kernel checks each condition as its own declared boolean, cited to the specific Note H subsection it comes from: Commission approval and published notice that Note H is satisfied for the named clearing agency; a separate, gross, per-customer margin calculation; cash margin invested only in short-term U.S. Treasury securities; margin held in a segregated Special Clearing Account at a Federal Reserve Bank or an FDIC-insured bank; and a system for returning excess margin no longer required. The source of the margin is separately checked against Note H's three permitted sources, including the narrow path where a broker-dealer's own Treasury securities may be used only if the customer lacked sufficient margin of its own and the broker-dealer recouped the advance by the next business day. The verdict is INCLUDABLE, NOT_INCLUDABLE, or INDETERMINATE, and INDETERMINATE covers both an unstated condition and missing margin-required or margin-on-deposit figures, neither of which is guessed toward either other verdict. Where INCLUDABLE, the debit is the smaller of the margin required and the margin actually on deposit, since Note H permits a debit no larger than either figure. Money is fixed point in integer minor units throughout with two-decimal display. Cites Exchange Act Rule 15c3-3a Note H by subsection and the SEC's Treasury-clearing compliance dates (cash trades by 2026-12-31, repo by 2027-06-30), each dated for re-verification against primary text. This kernel is a narrow sibling to the shipped art-396 15c3-3 reserve-formula tool: it recomputes only the Note H margin-debit sliver, never the full Items 1-14 reserve formula, and never edits art-396. Not legal or regulatory advice, and whether a clearing agency's rules and Commission notice actually satisfy Note H is for the broker-dealer's own compliance and financial-operations review.",
  "declared_inputs": [],
  "declared_outputs": [],
  "kernel_digest": "sha256:3bdfd9647ff94c830fe925048617e9528272a1bd33da7bc0a2a640e70563eea2",
  "trust_label": "independently verified: zkVM execution proof (risc0/groth16-bn254)",
  "data_vintage": "2026-08-07",
  "last_validated": "2026-08-07",
  "conformance_fixtures_vendored": true,
  "compute_proof_ready": "ready",
  "wave": 97,
  "source_url": "https://ainumbers.co/chaingraph/art-580-15c3-3a-note-h-margin-debit.html",
  "generated_at": "2026-08-15T11:12:17.704Z"
}