Add reputation correction impact ledger

reputation-correction-impact-ledger/README.md

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+# Reputation Correction Impact Ledger
+
+This submission targets [SCIBASE issue #15](https://github.com/SCIBASE-AI/SCIBASE.AI/issues/15) with a focused Community & User Reputation System module.
+
+It handles corrections, retractions, and appeals after reputation receipts already affected a profile. The original receipt remains auditable, while profile score, domain scores, and leaderboard eligibility use corrected evidence only.
+
+## What It Adds
+
+- Immutable receipt digests for reviews, credits, badges, endorsements, and bounty completions.
+- Correction events for retractions, amended points, appeal holds, and restores.
+- Transparent before/after score deltas for profile review.
+- Domain score recomputation so corrected evidence is not double-counted.
+- Leaderboard eligibility gating while correction or appeal risk is open.
+
+## Demo
+
+```powershell
+node reputation-correction-impact-ledger/test.js
+node reputation-correction-impact-ledger/demo.js
+```
+
+`demo.mp4` is the reviewer-facing video artifact for the bounty submission. It walks through the problem, implementation, acceptance path, and command validation in 8.4 seconds. `demo.svg` provides a static workflow diagram.
+
+See `acceptance-notes.md` for the payout-gate evidence checklist.

reputation-correction-impact-ledger/acceptance-notes.md

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+# Acceptance Notes
+
+This is a focused implementation for SCIBASE issue #15, not a generic AI-generated content drop. The slice targets a specific reputation-system failure mode: profile scores become misleading when peer reviews, contribution credits, or reproducibility badges are corrected after they have already been counted.
+
+## What Changed
+
+- Added immutable receipt digests for profile reputation evidence.
+- Added correction events for retractions, amended points, appeal holds, and restores.
+- Added transparent before/after score deltas and per-domain recomputation.
+- Added leaderboard eligibility gating while unresolved correction risk exists.
+- Added focused dependency-free tests and demo data.
+
+## Video Demo
+
+- `demo.mp4` shows the problem, implementation, acceptance behavior, and validation command.
+- `demo.svg` provides a static workflow diagram.
+
+## Validation
+
+Run from the repository root:
+
+```powershell
+node reputation-correction-impact-ledger/test.js
+node reputation-correction-impact-ledger/demo.js
+```
+
+Expected result: the test prints `reputation-correction-impact-ledger tests passed`, and the demo prints the original-to-corrected profile score, revoked receipts, amended receipts, appeal windows, leaderboard eligibility, and correction packet digest.
+
+## Integration Notes
+
+The module is dependency-free and uses plain profile receipt and correction objects. The next integration step is wiring receipts to SCIBASE review, contributor-credit, badge, and profile timeline events.

reputation-correction-impact-ledger/demo.js

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+"use strict";
+
+const { buildCorrectionLedger } = require("./index");
+
+const ledger = buildCorrectionLedger({
+  profileId: "researcher-ada",
+  receipts: [
+    {
+      id: "review-7",
+      kind: "peer_review",
+      projectId: "neuro-biomarker-atlas",
+      domain: "review",
+      points: 28
+    },
+    {
+      id: "credit-3",
+      kind: "contribution_credit",
+      projectId: "neuro-biomarker-atlas",
+      domain: "credit",
+      points: 18
+    },
+    {
+      id: "badge-2",
+      kind: "reproducibility_badge",
+      projectId: "climate-model-rerun",
+      domain: "reproducibility",
+      points: 26
+    }
+  ],
+  corrections: [
+    {
+      id: "corr-1",
+      targetReceiptId: "review-7",
+      action: "retract",
+      reason: "reviewer conflict disclosed after publication",
+      decidedAt: "2026-05-10T09:00:00Z"
+    },
+    {
+      id: "corr-2",
+      targetReceiptId: "credit-3",
+      action: "amend_points",
+      correctedPoints: 8,
+      reason: "role changed from primary curation to verification support",
+      decidedAt: "2026-05-11T12:00:00Z"
+    },
+    {
+      id: "corr-3",
+      targetReceiptId: "badge-2",
+      action: "appeal_hold",
+      reason: "rerun package is under independent review",
+      appealUntil: "2026-05-22T23:59:59Z",
+      decidedAt: "2026-05-12T12:00:00Z"
+    }
+  ]
+});
+
+console.log(JSON.stringify({
+  profileId: ledger.profileId,
+  score: `${ledger.originalScore} -> ${ledger.correctedScore}`,
+  revokedReceiptIds: ledger.revokedReceiptIds,
+  amendedReceiptIds: ledger.amendedReceiptIds,
+  appealWindows: ledger.appealWindows,
+  leaderboardEligible: ledger.leaderboardEligible,
+  correctionPacketDigest: ledger.correctionPacketDigest
+}, null, 2));

reputation-correction-impact-ledger/index.js

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+"use strict";
+
+const crypto = require("crypto");
+
+function stableJson(value) {
+  if (Array.isArray(value)) return value.map(stableJson);
+  if (value && typeof value === "object") {
+    return Object.keys(value).sort().reduce((accumulator, key) => {
+      accumulator[key] = stableJson(value[key]);
+      return accumulator;
+    }, {});
+  }
+  return value;
+}
+
+function digest(value) {
+  return crypto
+    .createHash("sha256")
+    .update(JSON.stringify(stableJson(value)))
+    .digest("hex");
+}
+
+function asArray(value) {
+  return Array.isArray(value) ? value : [];
+}
+
+function receiptPoints(receipt) {
+  if (typeof receipt.points === "number") return receipt.points;
+  const defaults = {
+    peer_review: 18,
+    contribution_credit: 12,
+    reproducibility_badge: 24,
+    endorsement: 8,
+    bounty_completion: 30
+  };
+  return defaults[receipt.kind] || 0;
+}
+
+function buildCorrectionIndex(corrections) {
+  const index = new Map();
+  for (const correction of asArray(corrections).slice().sort((a, b) =>
+    String(a.decidedAt || "").localeCompare(String(b.decidedAt || ""))
+  )) {
+    const list = index.get(correction.targetReceiptId) || [];
+    list.push(correction);
+    index.set(correction.targetReceiptId, list);
+  }
+  return index;
+}
+
+function applyReceiptCorrections(receipt, corrections) {
+  let correctedPoints = receiptPoints(receipt);
+  let status = "active";
+  const appliedCorrections = [];
+  const appealWindows = [];
+
+  for (const correction of asArray(corrections)) {
+    appliedCorrections.push({
+      id: correction.id,
+      action: correction.action,
+      reason: correction.reason || "not provided",
+      decidedAt: correction.decidedAt || null
+    });
+
+    if (correction.action === "retract") {
+      correctedPoints = 0;
+      status = "retracted";
+    }
+
+    if (correction.action === "amend_points") {
+      correctedPoints = correction.correctedPoints;
+      status = "amended";
+    }
+
+    if (correction.action === "appeal_hold") {
+      status = status === "active" ? "under_appeal" : status;
+      appealWindows.push({
+        correctionId: correction.id,
+        appealUntil: correction.appealUntil,
+        reason: correction.reason || "appeal pending"
+      });
+    }
+
+    if (correction.action === "restore") {
+      correctedPoints = correction.restoredPoints ?? receiptPoints(receipt);
+      status = "restored";
+    }
+  }
+
+  return {
+    receiptId: receipt.id,
+    kind: receipt.kind,
+    projectId: receipt.projectId || null,
+    domain: receipt.domain || "general",
+    originalPoints: receiptPoints(receipt),
+    correctedPoints,
+    status,
+    appliedCorrections,
+    appealWindows,
+    originalDigest: digest(receipt),
+    correctedDigest: digest({
+      receiptId: receipt.id,
+      correctedPoints,
+      status,
+      appliedCorrections
+    })
+  };
+}
+
+function summarizeDomainScores(adjustedReceipts) {
+  const scores = {};
+  for (const receipt of adjustedReceipts) {
+    scores[receipt.domain] = (scores[receipt.domain] || 0) + receipt.correctedPoints;
+  }
+  return Object.keys(scores).sort().map((domain) => ({
+    domain,
+    score: scores[domain]
+  }));
+}
+
+function buildCorrectionLedger({ profileId, receipts, corrections }) {
+  if (!profileId) {
+    throw new Error("profileId is required");
+  }
+
+  const correctionIndex = buildCorrectionIndex(corrections);
+  const adjustedReceipts = asArray(receipts).map((receipt) =>
+    applyReceiptCorrections(receipt, correctionIndex.get(receipt.id))
+  );
+
+  const originalScore = adjustedReceipts.reduce((sum, receipt) => sum + receipt.originalPoints, 0);
+  const correctedScore = adjustedReceipts.reduce((sum, receipt) => sum + receipt.correctedPoints, 0);
+  const revokedReceiptIds = adjustedReceipts
+    .filter((receipt) => receipt.status === "retracted")
+    .map((receipt) => receipt.receiptId)
+    .sort();
+  const amendedReceiptIds = adjustedReceipts
+    .filter((receipt) => receipt.status === "amended")
+    .map((receipt) => receipt.receiptId)
+    .sort();
+  const appealWindows = adjustedReceipts.flatMap((receipt) =>
+    receipt.appealWindows.map((window) => ({
+      receiptId: receipt.receiptId,
+      ...window
+    }))
+  );
+
+  return {
+    profileId,
+    originalScore,
+    correctedScore,
+    scoreDelta: correctedScore - originalScore,
+    revokedReceiptIds,
+    amendedReceiptIds,
+    appealWindows,
+    leaderboardEligible: appealWindows.length === 0 && revokedReceiptIds.length === 0,
+    domainScores: summarizeDomainScores(adjustedReceipts),
+    adjustedReceipts,
+    correctionPacketDigest: digest({
+      profileId,
+      adjustedReceipts,
+      correctedScore,
+      appealWindows
+    })
+  };
+}
+
+module.exports = {
+  applyReceiptCorrections,
+  buildCorrectionLedger,
+  digest
+};

reputation-correction-impact-ledger/requirements-map.md

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+# Requirements Map
+
+| Issue requirement | Implementation |
+| --- | --- |
+| Peer reviews and comments influence reputation | Peer-review receipts carry points and immutable evidence digests. |
+| Contributor credits are timestamped and credited | Contribution receipts can be amended without deleting the original record. |
+| Transparent reputation metrics | `originalScore`, `correctedScore`, `scoreDelta`, and domain scores explain exactly what changed. |
+| Reproducibility badge and peer validation support | Badge receipts can enter appeal hold while independent review completes. |
+| Leaderboards and badge system | `leaderboardEligible` blocks profiles with unresolved retractions or appeal windows. |
+| Profile history and project timelines | Original receipt digests are preserved in each adjusted receipt. |
+
+## Reviewer Checklist
+
+- Run `node reputation-correction-impact-ledger/test.js`.
+- Run `node reputation-correction-impact-ledger/demo.js`.
+- Confirm retracted review receipts score as zero but keep their original digest.
+- Confirm amended contribution credits replace points instead of double-counting.
+- Confirm appeal holds block leaderboard eligibility.