diff --git a/fishing/apps/api/src/catches/catches.service.spec.ts b/fishing/apps/api/src/catches/catches.service.spec.ts
index 3eb7be2..2e6cbb1 100644
--- a/fishing/apps/api/src/catches/catches.service.spec.ts
+++ b/fishing/apps/api/src/catches/catches.service.spec.ts
@@ -3,11 +3,15 @@ import { CatchesService } from './catches.service';
 import { removeUploadedFile } from '../common/upload/image-integrity.util';
 import { computePerceptualHash } from '../common/upload/image-phash.util';
 
-jest.mock('../common/upload/image-integrity.util', () => ({
-  computeImageHash: jest.fn().mockResolvedValue('hash-1'),
-  removeUploadedFile: jest.fn().mockResolvedValue(undefined),
-  validatePhotoFreshness: jest.fn().mockResolvedValue({ ok: true }),
-}));
+jest.mock('../common/upload/image-integrity.util', () => {
+  const actual = jest.requireActual('../common/upload/image-integrity.util');
+  return {
+    ...actual,
+    computeImageHash: jest.fn().mockResolvedValue('hash-1'),
+    removeUploadedFile: jest.fn().mockResolvedValue(undefined),
+    validatePhotoFreshness: jest.fn().mockResolvedValue({ ok: true }),
+  };
+});
 
 jest.mock('../common/upload/image-phash.util', () => {
   const actual = jest.requireActual('../common/upload/image-phash.util');
@@ -157,6 +161,33 @@ describe('CatchesService 이미지 해시', () => {
     expect(JSON.stringify(result)).not.toContain('LAKE1');
   });
 
+  it('촬영 시각이 없는 대회 제출은 확인 불가로 남긴다', async () => {
+    prisma.catch.findFirst.mockResolvedValue(null);
+    prisma.catch.findMany.mockResolvedValue([]);
+    tournaments.resolveDayCodeClaim.mockResolvedValueOnce({
+      claimedTournamentId: 'tour-1',
+      claimedDayCode: 'LAKE1',
+      dayCodeStatus: 'pending',
+    });
+    prisma.catch.create.mockResolvedValue({ id: 'new-catch' });
+    prisma.certification.deleteMany.mockResolvedValue({ count: 0 });
+    prisma.catch.delete.mockResolvedValue({});
+    aiService.analyze.mockRejectedValue(new ServiceUnavailableException('AI down'));
+
+    await expect(
+      service.createCertified('user-1', file, { tournamentId: 'tour-1', dayCode: 'LAKE1' }),
+    ).rejects.toBeInstanceOf(ServiceUnavailableException);
+
+    expect(prisma.catch.create).toHaveBeenCalledWith(
+      expect.objectContaining({
+        data: expect.objectContaining({
+          claimedDayCode: 'LAKE1',
+          integrityNote: 'code_date_unverified',
+        }),
+      }),
+    );
+  });
+
   it('자랑 기록을 지우면 이미지 해시를 비운다', async () => {
     prisma.catch.findUnique.mockResolvedValue({
       id: 'catch-1',
diff --git a/fishing/apps/api/src/catches/catches.service.ts b/fishing/apps/api/src/catches/catches.service.ts
index 86005cf..89165f4 100644
--- a/fishing/apps/api/src/catches/catches.service.ts
+++ b/fishing/apps/api/src/catches/catches.service.ts
@@ -6,6 +6,7 @@ import { resolveSpeciesId } from '../ai/species-slug.util';
 import { determineGrade } from '../common/certification/certification-grade.util';
 import { computeRankScore } from '../common/certification/rank-score.util';
 import {
+  appendIntegrityNote,
   computeImageHash,
   removeUploadedFile,
   validatePhotoFreshness,
@@ -56,12 +57,16 @@ export class CatchesService {
 
     let claim;
     try {
-      claim = await this.tournaments.resolveDayCodeClaim(userId, body);
+      claim = await this.tournaments.resolveDayCodeClaim(userId, body, new Date(), freshness.takenAt);
     } catch (error) {
       await removeUploadedFile(file.path);
       throw error;
     }
 
+    const notedFreshness = claim.claimedTournamentId && !freshness.takenAt
+      ? { ...freshness, integrityNote: appendIntegrityNote(freshness.integrityNote, 'code_date_unverified') }
+      : freshness;
+
     const imageUrl = `/uploads/${file.filename}`;
 
     const catch_ = await this.createCertifiedRow(
@@ -71,7 +76,7 @@ export class CatchesService {
       imageHash,
       perceptualHash,
       body,
-      freshness,
+      notedFreshness,
       claim,
     );
 
diff --git a/fishing/apps/api/src/common/upload/image-integrity.util.ts b/fishing/apps/api/src/common/upload/image-integrity.util.ts
index 25796a0..9e93f89 100644
--- a/fishing/apps/api/src/common/upload/image-integrity.util.ts
+++ b/fishing/apps/api/src/common/upload/image-integrity.util.ts
@@ -35,6 +35,12 @@ export type PhotoFreshnessResult =
 
 export type ClaimedLocation = { lat?: number; lng?: number };
 
+export function appendIntegrityNote(note: string | undefined, flag: string): string {
+  const parts = new Set((note ?? '').split(',').map((part) => part.trim()).filter(Boolean));
+  parts.add(flag);
+  return [...parts].join(',');
+}
+
 export function isPlausibleGps(lat: number, lng: number): boolean {
   if (!Number.isFinite(lat) || !Number.isFinite(lng)) return false;
   if (lat < -90 || lat > 90 || lng < -180 || lng > 180) return false;
diff --git a/fishing/apps/api/src/tournaments/day-code.service.spec.ts b/fishing/apps/api/src/tournaments/day-code.service.spec.ts
index 1c9c489..c64d3f0 100644
--- a/fishing/apps/api/src/tournaments/day-code.service.spec.ts
+++ b/fishing/apps/api/src/tournaments/day-code.service.spec.ts
@@ -13,7 +13,12 @@ describe('TournamentsService 일일 코드', () => {
 
   beforeEach(() => {
     jest.clearAllMocks();
-    prisma.tournament.findUnique.mockResolvedValue({ id: 'tour-1' });
+    prisma.tournament.findUnique.mockResolvedValue({
+      id: 'tour-1',
+      status: 'active',
+      startAt: new Date('2026-10-01T00:00:00.000Z'),
+      endAt: new Date('2026-11-01T00:00:00.000Z'),
+    });
   });
 
   it('관리자가 서울 날짜 코드를 저장한다', async () => {
@@ -42,7 +47,7 @@ describe('TournamentsService 일일 코드', () => {
     prisma.tournamentDayCode.findUnique.mockResolvedValue({ code: 'LAKE1' });
 
     await expect(
-      service.resolveDayCodeClaim('user-1', { tournamentId: 'tour-1', dayCode: 'lake1' }, now),
+      service.resolveDayCodeClaim('user-1', { tournamentId: 'tour-1', dayCode: 'lake1' }, now, now),
     ).resolves.toEqual({
       claimedTournamentId: 'tour-1',
       claimedDayCode: 'LAKE1',
@@ -124,4 +129,38 @@ describe('TournamentsService 일일 코드', () => {
       service.resolveDayCodeClaim('user-1', { tournamentId: 'tour-1', dayCode: 'RIVER' }, now),
     ).rejects.toBeInstanceOf(BadRequestException);
   });
+
+  it('실격 참가자와 진행 중이 아닌 대회는 코드를 받지 않는다', async () => {
+    prisma.tournamentEntry.findUnique.mockResolvedValue({ paymentStatus: 'free', disqualified: true });
+    prisma.tournamentDayCode.findUnique.mockResolvedValue({ code: 'LAKE1' });
+    await expect(
+      service.resolveDayCodeClaim('user-1', { tournamentId: 'tour-1', dayCode: 'LAKE1' }, now, now),
+    ).rejects.toBeInstanceOf(BadRequestException);
+
+    prisma.tournament.findUnique.mockResolvedValue({
+      id: 'tour-1',
+      status: 'upcoming',
+      startAt: new Date('2026-10-01T00:00:00.000Z'),
+      endAt: new Date('2026-11-01T00:00:00.000Z'),
+    });
+    prisma.tournamentEntry.findUnique.mockResolvedValue({ paymentStatus: 'free', disqualified: false });
+    await expect(
+      service.resolveDayCodeClaim('user-1', { tournamentId: 'tour-1', dayCode: 'LAKE1' }, now, now),
+    ).rejects.toBeInstanceOf(BadRequestException);
+    expect(prisma.tournamentDayCode.findUnique).not.toHaveBeenCalled();
+  });
+
+  it('다른 날 사진은 오늘 코드로 받지 않는다', async () => {
+    prisma.tournamentEntry.findUnique.mockResolvedValue({ paymentStatus: 'free', disqualified: false });
+    prisma.tournamentDayCode.findUnique.mockResolvedValue({ code: 'LAKE1' });
+
+    await expect(
+      service.resolveDayCodeClaim(
+        'user-1',
+        { tournamentId: 'tour-1', dayCode: 'LAKE1' },
+        now,
+        new Date('2026-10-19T03:00:00.000Z'),
+      ),
+    ).rejects.toBeInstanceOf(BadRequestException);
+  });
 });
diff --git a/fishing/apps/api/src/tournaments/day-code.util.spec.ts b/fishing/apps/api/src/tournaments/day-code.util.spec.ts
index c6bf6a4..b016079 100644
--- a/fishing/apps/api/src/tournaments/day-code.util.spec.ts
+++ b/fishing/apps/api/src/tournaments/day-code.util.spec.ts
@@ -1,4 +1,4 @@
-import { normalizeDayCode, seoulDateKey } from './day-code.util';
+import { assertDayCodePhoto, normalizeDayCode, seoulDateKey } from './day-code.util';
 
 describe('대회 일일 코드', () => {
   it('서울 날짜 기준으로 날짜 키를 만든다', () => {
@@ -12,4 +12,30 @@ describe('대회 일일 코드', () => {
     expect(normalizeDayCode('한글코드')).toBeNull();
     expect(normalizeDayCode(12)).toBeNull();
   });
+
+  it('촬영일이 코드 날짜와 같고 대회 기간 안이면 통과한다', () => {
+    const takenAt = new Date('2026-10-20T03:00:00.000Z');
+    expect(assertDayCodePhoto({
+      takenAt,
+      codeDate: '2026-10-20',
+      startAt: new Date('2026-10-19T15:00:00.000Z'),
+      endAt: new Date('2026-10-21T15:00:00.000Z'),
+    })).toEqual({ ok: true });
+  });
+
+  it('다른 날 사진과 기간 밖 사진은 거절한다', () => {
+    const window = {
+      codeDate: '2026-10-20',
+      startAt: new Date('2026-10-20T06:00:00.000Z'),
+      endAt: new Date('2026-10-21T15:00:00.000Z'),
+    };
+    expect(assertDayCodePhoto({
+      ...window,
+      takenAt: new Date('2026-10-19T03:00:00.000Z'),
+    }).ok).toBe(false);
+    expect(assertDayCodePhoto({
+      ...window,
+      takenAt: new Date('2026-10-20T03:00:00.000Z'),
+    }).ok).toBe(false);
+  });
 });
diff --git a/fishing/apps/api/src/tournaments/day-code.util.ts b/fishing/apps/api/src/tournaments/day-code.util.ts
index db308ca..cbff1c5 100644
--- a/fishing/apps/api/src/tournaments/day-code.util.ts
+++ b/fishing/apps/api/src/tournaments/day-code.util.ts
@@ -14,3 +14,28 @@ export function normalizeDayCode(value: unknown): string | null {
   const code = value.trim().toUpperCase();
   return CODE_PATTERN.test(code) ? code : null;
 }
+
+/**
+ * 오늘 코드를 받은 사진은 그 코드의 서울 날짜에 찍혔고, 대회 기간 안이어야 한다.
+ * 촬영 시각이 없는 경우는 여기서 통과시키고, 호출하는 쪽이 확인 불가로 남긴다.
+ */
+export function assertDayCodePhoto(input: {
+  takenAt: Date;
+  codeDate: string;
+  startAt: Date;
+  endAt: Date;
+}): { ok: true } | { ok: false; reason: string } {
+  if (Number.isNaN(input.takenAt.getTime())) {
+    return { ok: false, reason: '촬영 시각을 확인할 수 없습니다.' };
+  }
+  if (seoulDateKey(input.takenAt) !== input.codeDate) {
+    return {
+      ok: false,
+      reason: '촬영일이 오늘 대회 코드의 날짜와 다릅니다. 오늘 찍은 사진을 올려주세요.',
+    };
+  }
+  if (input.takenAt < input.startAt || input.takenAt > input.endAt) {
+    return { ok: false, reason: '촬영 시각이 대회 기간 밖입니다.' };
+  }
+  return { ok: true };
+}
diff --git a/fishing/apps/api/src/tournaments/organizer.service.spec.ts b/fishing/apps/api/src/tournaments/organizer.service.spec.ts
index abfabc0..93afcfd 100644
--- a/fishing/apps/api/src/tournaments/organizer.service.spec.ts
+++ b/fishing/apps/api/src/tournaments/organizer.service.spec.ts
@@ -98,7 +98,7 @@ describe('TournamentsService 운영자 대회', () => {
   it('운영자는 자기 대회에 제출된 코드만 수락한다', async () => {
     prisma.user.findUnique.mockResolvedValue({ id: 'org-1', role: 'organizer' });
     prisma.tournament.findUnique.mockResolvedValue({ id: 'tour-1', organizerId: 'org-1' });
-    prisma.catch.findFirst.mockResolvedValue({ id: 'catch-1', claimedDayCode: 'SHOP1' });
+    prisma.catch.findFirst.mockResolvedValue({ id: 'catch-1', claimedDayCode: 'SHOP1', status: 'approved' });
     prisma.catch.update.mockResolvedValue({ id: 'catch-1', dayCodeStatus: 'accepted' });
 
     await expect(service.reviewDayCodeClaim('org-1', 'tour-1', 'catch-1', 'accepted')).resolves.toEqual({
@@ -125,4 +125,15 @@ describe('TournamentsService 운영자 대회', () => {
     );
     expect(prisma.catch.update).not.toHaveBeenCalled();
   });
+
+  it('반려된 인증은 코드 수락을 거절한다', async () => {
+    prisma.user.findUnique.mockResolvedValue({ id: 'org-1', role: 'organizer' });
+    prisma.tournament.findUnique.mockResolvedValue({ id: 'tour-1', organizerId: 'org-1' });
+    prisma.catch.findFirst.mockResolvedValue({ id: 'catch-1', claimedDayCode: 'SHOP1', status: 'rejected' });
+
+    await expect(service.reviewDayCodeClaim('org-1', 'tour-1', 'catch-1', 'accepted')).rejects.toBeInstanceOf(
+      BadRequestException,
+    );
+    expect(prisma.catch.update).not.toHaveBeenCalled();
+  });
 });
diff --git a/fishing/apps/api/src/tournaments/tournaments.service.ts b/fishing/apps/api/src/tournaments/tournaments.service.ts
index 246daea..af21ce1 100644
--- a/fishing/apps/api/src/tournaments/tournaments.service.ts
+++ b/fishing/apps/api/src/tournaments/tournaments.service.ts
@@ -1,6 +1,6 @@
 import { Injectable, NotFoundException, BadRequestException, ForbiddenException } from '@nestjs/common';
 import { PrismaService } from '../prisma/prisma.service';
-import { normalizeDayCode, seoulDateKey } from './day-code.util';
+import { assertDayCodePhoto, normalizeDayCode, seoulDateKey } from './day-code.util';
 import { buildLiveLeaderboard, leaderboardCsv } from './live-leaderboard.util';
 
 export type DayCodeClaim = {
@@ -247,7 +247,12 @@ export class TournamentsService {
     });
   }
 
-  async resolveDayCodeClaim(userId: string, body: { tournamentId?: unknown; dayCode?: unknown }, now = new Date()): Promise<DayCodeClaim> {
+  async resolveDayCodeClaim(
+    userId: string,
+    body: { tournamentId?: unknown; dayCode?: unknown },
+    now = new Date(),
+    takenAt?: Date,
+  ): Promise<DayCodeClaim> {
     const tournamentId = typeof body.tournamentId === 'string' ? body.tournamentId.trim() : '';
     const rawCode = typeof body.dayCode === 'string' ? body.dayCode : '';
     if (!tournamentId && !rawCode.trim()) return EMPTY_DAY_CODE_CLAIM;
@@ -258,12 +263,21 @@ export class TournamentsService {
     const code = normalizeDayCode(rawCode);
     if (!code) throw new BadRequestException('대회 코드는 4~12자의 영문 또는 숫자여야 합니다.');
 
+    const tournament = await this.prisma.tournament.findUnique({ where: { id: tournamentId } });
+    if (!tournament) throw new NotFoundException('대회를 찾을 수 없습니다.');
+    if (tournament.status !== 'active' || now < tournament.startAt || now > tournament.endAt) {
+      throw new BadRequestException('진행 중인 대회 기간에만 코드를 제출할 수 있습니다.');
+    }
+
     const entry = await this.prisma.tournamentEntry.findUnique({
       where: { tournamentId_userId: { tournamentId, userId } },
     });
     if (!entry || (entry.paymentStatus !== 'free' && entry.paymentStatus !== 'paid')) {
       throw new BadRequestException('참가 중인 대회만 코드를 제출할 수 있습니다.');
     }
+    if (entry.disqualified) {
+      throw new BadRequestException('실격된 대회에는 코드를 제출할 수 없습니다.');
+    }
 
     const codeDate = seoulDateKey(now);
     const stored = await this.prisma.tournamentDayCode.findUnique({
@@ -272,6 +286,16 @@ export class TournamentsService {
     if (!stored) throw new BadRequestException('오늘 대회 코드가 아직 없습니다.');
     if (stored.code !== code) throw new BadRequestException('대회 코드가 맞지 않습니다.');
 
+    if (takenAt) {
+      const photo = assertDayCodePhoto({
+        takenAt,
+        codeDate,
+        startAt: tournament.startAt,
+        endAt: tournament.endAt,
+      });
+      if (!photo.ok) throw new BadRequestException(photo.reason);
+    }
+
     return { claimedTournamentId: tournamentId, claimedDayCode: code, dayCodeStatus: 'pending' };
   }
 
@@ -312,6 +336,7 @@ export class TournamentsService {
         claimedDayCode: true,
         dayCodeStatus: true,
         integrityNote: true,
+        photoTakenAt: true,
         createdAt: true,
         user: { select: { id: true, nickname: true } },
       },
@@ -336,6 +361,9 @@ export class TournamentsService {
       },
     });
     if (!catch_) throw new NotFoundException('이 대회에 제출된 코드를 찾을 수 없습니다.');
+    if (status === 'accepted' && catch_.status === 'rejected') {
+      throw new BadRequestException('반려된 인증은 대회에 넣을 수 없습니다.');
+    }
     return this.prisma.catch.update({
       where: { id: catchId },
       data: { dayCodeStatus: status },
diff --git a/fishing/apps/web/src/app/tournament/organize/page.tsx b/fishing/apps/web/src/app/tournament/organize/page.tsx
index edc80ad..80a2caf 100644
--- a/fishing/apps/web/src/app/tournament/organize/page.tsx
+++ b/fishing/apps/web/src/app/tournament/organize/page.tsx
@@ -17,6 +17,7 @@ const STATUS_OPTIONS = [
 const NOTE_LABELS: Record<string, string> = {
   date_missing: '촬영 시각 없음',
   gps_missing: 'GPS 없음',
+  code_date_unverified: '촬영일을 코드 날짜와 대조하지 못함',
 };
 
 function noteLabel(note?: string | null) {
@@ -257,10 +258,14 @@ export default function OrganizeTournamentPage() {
                           claimedDayCode?: string | null;
                           dayCodeStatus?: string | null;
                           integrityNote?: string | null;
+                          photoTakenAt?: string | null;
                           user: { nickname: string };
                         }) => {
                           const image = getImageUrl(claim.imageUrl);
                           const flags = noteLabel(claim.integrityNote);
+                          const taken = claim.photoTakenAt
+                            ? new Date(claim.photoTakenAt).toLocaleString('ko-KR')
+                            : '';
                           return (
                             <li key={claim.id}>
                               {claim.user.nickname}
@@ -268,6 +273,7 @@ export default function OrganizeTournamentPage() {
                               {' · '}{claim.dayCodeStatus}
                               {claim.lengthCm ? ` · ${Number(claim.lengthCm).toFixed(1)}cm` : ''}
                               {' · 인증 '}{claim.status}
+                              {taken ? ` · 촬영 ${taken}` : ''}
                               {flags ? ` · ${flags}` : ''}
                               {image && (
                                 <>