{ "tool_id": "art-567-pe-waterfall-lp-recompute", "tool_version": "1.0.0", "display_name": "PE Distribution Waterfall LP-Side Recompute", "mcp_name": "recompute_pe_waterfall_lp", "mandate_type": "attestation_mandate", "wave": 93, "gpu": false, "url": "https://ainumbers.co/chaingraph/art-567-pe-waterfall-lp-recompute.html", "description": "Recomputes a standard 4-tier PE distribution waterfall (return of capital, preferred return, GP catch-up, residual carry split) from caller-DECLARED dated contribution/distribution cashflows and a caller-DECLARED waterfall parameterization (pref rate + compounding basis, GP catch-up percentage, carry percentage, European whole-fund or American deal-by-deal tier structure, optional clawback check), then diffs the recomputed per-tier LP/GP allocation against a caller-supplied GP-reported allocation. Verdict MATCHES, DIVERGES with per-tier deltas, or INDETERMINATE whenever a required parameter is absent -- never guessed, never defaulted. ILPA's own reporting-template guidance states it was not designed for verifying any of the GP's calculations, cited here only as dated gap evidence, never as an ILPA endorsement or ILPA-compliance claim. Cross-links recompute_fund_nav (art-373), which recomputes NAV, not distribution waterfalls -- the two do not duplicate each other. Zero network, zero PII, fixed-point BigInt money math throughout.", "input_schema_ref": "chaingraph/art-567-pe-waterfall-lp-recompute.html#manifest", "deadline": null, "deadline_note": "No statutory deadline; waterfall verification is a continuous LP-side fund-oversight control, not a periodic filing.", "consumes": [], "feeds": [], "status": "live", "conformance_fixtures": true, "compute_capability": "server", "compute_images": [ { "system": "sha256-source", "image_id": "sha256:df13afbe5e611661922ccea2123194de8f703a3efa283154ec7af8b7876881e9", "valid_from": "2026-07-10" }, { "system": "risc0", "image_id": "sha256:a1a0bc89b5b1febaeda3519f6dbade0fa5ac16beeb143c4e1b01689573567bc6", "valid_from": "2026-08-07" } ], "export_capability": [ "json", "vc" ], "compute_proof_ready": "ready", "deferred_reason": "New shard; awaiting the async GPU proving queue (S18 steady-state).", "compute_proof": { "type": "ZkVmReceipt", "system": "risc0", "receiptFormat": "groth16-bn254", "imageId": "sha256:a1a0bc89b5b1febaeda3519f6dbade0fa5ac16beeb143c4e1b01689573567bc6", "seal": "ANQd8Zsko/7KJhxtWTqS28ck3GQSO6oz0VqOYbl2x8sJLD1qgdKcgxmofa1mzTIrcF2j5YD/K292KYspItyHAg8T5jHMw5UQxAM/Lx9u1HcwVT3a/noEX09oTBc76f8wBiUaUEV7v5XDyjzLPGawQeLC5yDKp+eDqjcympfdziUV7yzp4i7KE7OjhJuBOZwREjC46aTs30CeI2XQZFuqLB4vD13Us28lu9HhV9SmLe7IqtAI2rNLTcGlMUKEg/8NJ04DouYq1WxYxemaMoy5g1vCLlEhvVpmNIJD2XcTyY4AzzKFs8uB1CPsooSnPz41UyBIWqSt6REl05fDPWyaLw==", "journal": { "chaingraph_version": "0.4.0", "kernel_digest": "sha256:df13afbe5e611661922ccea2123194de8f703a3efa283154ec7af8b7876881e9", "output": { "as_of_date": null, "clawback": { "clawback_amount": "0.00000000", "clawback_flag_declared": true, "gp_carry_and_catchup_received": "60000.00000000", "gp_entitled_at_carry_pct": "60000.00000000", "note": "Aggregate check only: does cumulative GP catch-up + carry exceed carry_pct of cumulative realized profit (distributions minus contributions) at this as-of date. Not a fund-level clawback provision recompute -- the governing LPA clawback mechanics (interim vs final, tax-effected or gross, escrow terms) are not modeled here.", "total_realized_profit": "300000.00000000" }, "deal_id": null, "fence": "Cashflows and the waterfall parameterization are SUPPLIED, asserted, and digested into this receipt. This kernel recomputes ARITHMETIC over declared inputs and attests THAT -- never an opinion on LPA authorization, never ILPA-endorsed or ILPA-compliant.", "fund_id": "FUND-A", "gp_reported_allocation": { "tiers": [ { "gp_amount": 0, "lp_amount": 1000000, "tier": "return_of_capital" }, { "gp_amount": 0, "lp_amount": 80000, "tier": "preferred_return" }, { "gp_amount": 20000, "lp_amount": 0, "tier": "gp_catchup" }, { "gp_amount": 40000, "lp_amount": 160000, "tier": "carry_residual" } ] }, "ilpa_context": "ILPA reporting-template guidance states it was not designed for verifying any of the GP's calculations (cited as dated gap evidence, not as an endorsement of this tool).", "not_proven": [ { "detail": "Every dated cashflow is caller-supplied and asserted. This kernel performs no document parsing or fund-administrator data lookups (zero-egress) and does not verify these values against any external source.", "item": "Cashflow accuracy" }, { "detail": "This kernel recomputes arithmetic under a DECLARED waterfall parameterization; it makes no finding on whether that parameterization is what the governing limited partnership agreement actually specifies.", "item": "LPA authorization" }, { "detail": "ILPA reporting-template guidance is cited only as dated context that GP-side verification tooling is not designed to check the GP's own math. This kernel is not endorsed by, and makes no claim of compliance with, ILPA.", "item": "ILPA endorsement or compliance" }, { "detail": "The GP-reported allocation compared against is exactly what the caller typed in; this kernel does not verify it was transcribed correctly from the GP's capital account statement.", "item": "GP-reported allocation source" } ], "per_deal": null, "recomputed_allocation": [ { "gp_amount": "0.00000000", "lp_amount": "1000000.00000000", "tier": "return_of_capital" }, { "gp_amount": "0.00000000", "lp_amount": "80000.00000000", "tier": "preferred_return" }, { "gp_amount": "20000.00000000", "lp_amount": "0.00000000", "tier": "gp_catchup" }, { "gp_amount": "40000.00000000", "lp_amount": "160000.00000000", "tier": "carry_residual" } ], "rejected_inputs": [], "tier_deltas": [ { "gp_delta": "0.00000000", "gp_reported_gp_amount": "0", "gp_reported_lp_amount": "1000000", "lp_delta": "0.00000000", "matches": true, "recomputed_gp_amount": "0.00000000", "recomputed_lp_amount": "1000000.00000000", "tier": "return_of_capital" }, { "gp_delta": "0.00000000", "gp_reported_gp_amount": "0", "gp_reported_lp_amount": "80000", "lp_delta": "0.00000000", "matches": true, "recomputed_gp_amount": "0.00000000", "recomputed_lp_amount": "80000.00000000", "tier": "preferred_return" }, { "gp_delta": "0.00000000", "gp_reported_gp_amount": "20000", "gp_reported_lp_amount": "0", "lp_delta": "0.00000000", "matches": true, "recomputed_gp_amount": "20000.00000000", "recomputed_lp_amount": "0.00000000", "tier": "gp_catchup" }, { "gp_delta": "0.00000000", "gp_reported_gp_amount": "40000", "gp_reported_lp_amount": "160000", "lp_delta": "0.00000000", "matches": true, "recomputed_gp_amount": "40000.00000000", "recomputed_lp_amount": "160000.00000000", "tier": "carry_residual" } ], "tier_structure": "european_whole_fund", "verdict": "MATCHES", "waterfall": { "carry_pct": 0.2, "compounding_basis": "simple", "day_count_convention": "actual/365", "gp_catchup_pct": 1, "pref_rate": 0.08 } } } } }