chained-forensic-extraction_20260101_011957

{"output": "total 16\ndrwxr-xr-x 1 root root 4096 Mar  4 09:22 .\ndrwxr-xr-x 1 root root 4096 Apr 23 06:18 ..\ndrwxr-xr-x 2 root root 4096 Mar  4 09:22 data\ndrwxr-xr-x 2 root root 4096 Mar  4 09:22 output", "exit_code": 0, "error": null}

I'll analyze this forensic challenge step by step. Let me start by exploring the environment and understanding the data.

→ terminal({"command": "ls -la /app/"})

{"output": "total 12\ndrwxr-xr-x 2 root root 4096 Mar  4 09:22 .\ndrwxr-xr-x 1 root root 4096 Mar  4 09:22 ..\n-rw-r--r-- 1 root root  957 Mar  4 09:22 artifact.bin", "exit_code": 0, "error": null}

{"output": "bash: line 3: xxd: command not found", "exit_code": 0, "error": null}

{"output": "000000 50 4f 4c 59 47 4c 4f 54 5f 48 45 41 44 45 52 00  >POLYGLOT_HEADER.<\n000010 00 01 02 03 04 05 06 07 08 09 0a 0b 0c 0d 0e 0f  >................<\n000020 10 11 12 13 14 15 16 17 18 19 1a 1b 1c 1d 1e 1f  >................<\n000030 20 21 22 23 24 25 26 27 28 29 2a 2b 2c 2d 2e 2f  > !\"#$%&'()*+,-./<\n000040 30 31 32 33 34 35 36 37 38 39 3a 3b 3c 3d 3e 3f  >0123456789:;<=>?<\n000050 50 4b 03 04 14 00 00 00 00 00 c1 4a 64 5c 9a d0  >PK.........Jd\\..<\n000060 ee ca 3d 00 00 00 3d 00 00 00 09 00 00 00 64 65  >..=...=.......de<\n000070 63 6f 79 2e 74 78 74 54 68 69 73 20 69 73 20 61  >coy.txtThis is a<\n000080 20 64 65 63 6f 79 20 66 69 6c 65 2e 20 54 68 65  > decoy file. The<\n000090 20 72 65 61 6c 20 64 61 74 61 20 69 73 20 69 6e  > real data is in<\n0000a0 20 74 68 65 20 73 65 63 6f 6e 64 20 61 72 63 68  > the second arch<\n0000b0 69 76 65 2e 50 4b 01 02 14 03 14 00 00 00 00 00  >ive.PK..........<\n0000c0 c1 4a 64 5c 9a d0 ee ca 3d 00 00 00 3d 00 00 00  >.Jd\\....=...=...<\n0000d0 09 00 00 00 00 00 00 00 00 00 00 00 80 01 00 00  >................<\n0000e0 00 00 64 65 63 6f 79 2e 74 78 74 50 4b 05 06 00  >..decoy.txtPK...<\n0000f0 00 00 00 01 00 01 00 37 00 00 00 64 00 00 00 00  >.......7...d....<\n000100 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  >................<\n*\n000120 00 50 41 44 44 49 4e 47 5f 53 45 43 54 49 4f 4e  >.PADDING_SECTION<\n000130 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  >................<\n*\n000150 50 4b 03 04 14 00 00 00 00 00 c1 4a 64 5c 86 d6  >PK.........Jd\\..<\n000160 72 5a f7 01 00 00 f7 01 00 00 0a 00 00 00 68 69  >rZ............hi<\n000170 64 64 65 6e 2e 70 6e 67 89 50 4e 47 0d 0a 1a 0a  >dden.png.PNG....<\n000180 00 00 00 0d 49 48 44 52 00 00 00 01 00 00 00 01  >....IHDR........<\n000190 08 00 00 00 00 3a 7e 9b 55 00 00 01 a8 74 45 58  >.....:~.U....tEX<\n0001a0 74 43 6f 6d 6d 65 6e 74 00 4c 53 67 73 4b 33 56  >tComment.LSgsK3V<\n0001b0 76 4d 32 38 75 4b 43 41 70 63 52 64 78 45 57 34  >vM28uKCApcRdxEW4<\n0001c0 38 47 44 45 78 41 6d 6b 4d 4c 68 64 70 4c 6d 4d  >8GDExAmkMLhdpLmM<\n0001d0 35 61 53 4d 73 63 52 67 54 49 33 46 6f 45 54 77  >5aSMscRgTI3FoETw<\n0001e0 72 63 54 34 74 4b 44 51 58 62 44 6c 74 4d 43 30  >rcT4tKDQXbDltMC0<\n0001f0 58 61 53 6b 79 59 69 42 74 4d 47 77 2f 43 44 4e  >XaSkyYiBtMGw/CDN<\n000200 69 44 6a 30 74 46 68 67 66 50 41 41 43 61 57 6b  >iDj0tFhgfPAACaWk<\n000210 2f 4d 7a 5a 74 62 78 67 4a 62 54 6b 31 62 69 49  >/MzZtbxgJbTk1biI<\n000220 59 4e 53 49 37 47 42 30 70 4d 32 4d 67 61 54 41  >YNSI7GB0pM2MgaTA<\n000230 2f 43 68 73 2f 4b 69 77 38 61 47 30 7a 4b 58 55  >/Chs/Kiw8aG0zKXU<\n000240 38 48 44 30 74 4e 51 4d 4b 4d 79 6f 32 50 6d 49  >8HD0tNQMKMyo2PmI<\n000250 59 41 77 73 38 4b 68 77 39 4e 67 77 4f 4b 57 34  >YAws8Khw9NgwOKW4<\n000260 5a 4e 43 74 76 46 6a 4d 74 49 78 63 70 50 43 4e  >ZNCtvFjMtIxcpPCN<\n000270 74 4d 77 31 31 50 44 59 2b 4c 53 68 78 45 6d 30  >tMw11PDY+LShxEm0<\n000280 4d 47 54 4d 67 63 54 51 4c 62 44 6c 31 4d 44 73  >MGTMgcTQLbDl1MDs<\n000290 59 62 43 74 31 50 57 67 4c 49 6a 55 4c 43 6a 31  >YbCt1PWgLIjULCj1<\n0002a0 6a 62 47 31 69 4d 6d 67 64 4c 79 68 73 45 48 45  >jbG1iMmgdLyhsEHE<\n0002b0 4e 43 79 42 76 44 54 73 69 4e 77 49 33 44 48 55  >NCyBvDTsiNwI3DHU<\n0002c0 38 4e 6d 77 77 41 79 6b 4c 62 78 6c 73 50 6d 6c  >8NmwwAykLbxlsPml<\n0002d0 78 62 51 73 79 4b 57 67 6f 61 54 35 70 4e 47 30  >xbQsyKWgoaT5pNG0<\n0002e0 39 63 57 77 74 44 42 67 66 50 41 41 43 61 57 6b  >9cWwtDBgfPAACaWk<\n0002f0 2f 4d 7a 5a 73 4f 52 67 4a 62 54 6b 31 62 69 49  >/MzZsORgJbTk1biI<\n000300 59 4e 53 49 37 4b 42 31 78 49 48 46 73 41 47 77  >YNSI7KB1xIHFsAGw<\n000310 4d 50 7a 59 67 4d 6a 59 43 62 52 67 64 62 7a 30  >MPzYgMjYCbRgdbz0<", "exit_code": 0, "error": null}

{"bytes_written": 11212, "dirs_created": true}

Good! I can see the file structure. Let me analyze this more carefully and write a Python script to extract all the required information.

→ write_file({"path": "/app/extractor.py", "content": "#!/usr/bin/env python3\n\"\"\"\nChained Forensic Extraction - Multi-stage解密工具\n\"\"\"\n\nimport struct\nimport base64\nimport zlib\nimport re\nimport json\n\ndef read_file_bytes(path):\n    with open(path, 'rb') as f:\n        return f.read()\n\ndef find_zip_signatures(data):\n    \"\"\"查找所有ZIP文件的签名位置 (PK\\x03\\x04)\"\"\"\n    signatures = []\n    sig = b'…)

{"error": "Unknown process action: run. Use: list, poll, log, wait, kill, write, submit, close"}

{"output": "==================================================\nSTAGE 1: ZIP Offset Extraction\n==================================================\nStage 1 - ZIP signatures found at: [80, 336]\nFirst ZIP offset: 80\nSecond ZIP offset: 336\n\n==================================================\nSTAGE 2: PNG tEXt Extraction\n==================================================\nStage 2 - PNG found at offset: 40\nStage 2 - tEXt chunks at: [409]\ntEXt offset: 409\nCRC valid: True\nExtracted text: Comment\u0000LSgsK3VvM28uKCApcRdxEW48GDExAmkMLhdpLmM5aSMscRgTI3FoETwrcT4tKDQXbDltMC0XaSkyYiBtMGw/CDNiDj0tFhgfPAACaWk/MzZtbxgJbTk1biIYNSI7GB0pM2MgaTA/Chs/Kiw8aG0zKXU8HD0tNQMKMyo2PmIYAws8Khw9NgwOKW4ZNCtvFjMtIxcpPCNtMw11PDY+LShxEm0MGTMgcTQLbDl1MDsYbCt1PWgLIjULCj1jbG1iMmgdLyhsEHENCyBvDTsiNwI3DHU8NmwwAykLbxlsPmlxbQsyKWgoaT5pNG09cWwtDBgfPAACaWk/MzZsORgJbTk1biIYNSI7KB1xIHFsAGwMPzYgMjYCbRgdbz08LXE2AjUDPWIOPmIYAww8ACAVMAN1KT0qLDwiMGdn\n\n==================================================\nSTAGE 3: Encoding Chain Decoding\n==================================================\nTraceback (most recent call last):\n  File \"/app/extractor.py\", line 347, in <module>\n    main()\n    ~~~~^^\n  File \"/app/extractor.py\", line 304, in main\n    stage3_result = stage3_decode_encoding_chain(stage2_result['png_extracted_text'])\n  File \"/app/extractor.py\", line 198, in stage3_decode_encoding_chain\n    raise ValueError(\"Failed to decode encoding chain\")\nValueError: Failed to decode encoding chain", "exit_code": 1, "error": null}

{"output": "", "exit_code": -1, "error": "Foreground command uses '&' backgrounding. Use terminal(background=true) for long-lived processes, then run health checks and tests in follow-up terminal calls.", "status": "error"}

The text extraction is getting too much data. Let me look more carefully at the PNG structure and extract only the tEXt chunk content properly.

→ terminal({"command": "python3 -c \"\nimport struct\n\nwith open('/app/data/artifact.bin', 'rb') as f:\n    data = f.read()\n\n# Find PNG signature\npng_pos = data.find(b'\\\\x89PNG')\nprint(f'PNG position: {png_pos}')\n\n# Find tEXt chunk - look for 'tEXt' marker\ntEXt_pos = data.find(b'tEXt')\nprint(f'tEXt position: {tEXt_pos}')\n\n# The tEXt chunk structure is:\n# length (4 bytes) + type (4 bytes 'tEXt')…)

{"bytes_written": 1773, "dirs_created": true}

{"output": "PNG position: 376\ntEXt position: 413\ntEXt data length: 424\nFull chunk size: 436\ntEXt content length: 424\ntEXt content (hex): 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\ntEXt content (repr): b'Comment\\x00LSgsK3VvM28uKCApcRdxEW48GDExAmkMLhdpLmM5aSMscRgTI3FoETwrcT4tKDQXbDltMC0XaSkyYiBtMGw/CDNiDj0tFhgfPAACaWk/MzZtbxgJbTk1biIYNSI7GB0pM2MgaTA/Chs/Kiw8aG0zKXU8HD0tNQMKMyo2PmIYAws8Khw9NgwOKW4ZNCtvFjMtIxcpPCNtMw11PDY+LShxEm0MGTMgcTQLbDl1MDsYbCt1PWgLIjULCj1jbG1iMmgdLyhsEHENCyBvDTsiNwI3DHU8NmwwAykLbxlsPmlxbQsyKWgoaT5pNG09cWwtDBgfPAACaWk/MzZsORgJbTk1biIYNSI7KB1xIHFsAGwMPzYgMjYCbRgdbz08LXE2AjUDPWIOPmIYAww8ACAVMAN1KT0qLDwiMGdn'\nStored CRC: 3890872c\nComputed CRC: 3890872c\nCRC match: True\n\nData at offset 409:\nLength field: 424\nType: b'tEXt'\nText content: b'Comment\\x00LSgsK3VvM28uKCApcRdxEW48GDExAmkMLhdpLmM5aSMscRgTI3FoETwrcT4tKDQXbDltMC0XaSkyYiBtMGw/CDNiDj0tFhgfPAACaWk/MzZtbxgJbTk1biIYNSI7GB0pM2MgaTA/Chs/Kiw8aG0zKXU8HD0tNQMKMyo2PmIYAws8Khw9NgwOKW4ZNCtvFjMtIxcpPCNtMw11PDY+LShxEm0MGTMgcTQLbDl1MDsYbCt1PWgLIjULCj1jbG1iMmgdLyhsEHENCyBvDTsiNwI3DHU8NmwwAykLbxlsPmlxbQsyKWgoaT5pNG09cWwtDBgfPAACaWk/MzZsORgJbTk1biIYNSI7KB1xIHFsAGwMPzYgMjYCbRgdbz08LXE2AjUDPWIOPmIYAww8ACAVMAN1KT0qLDwiMGdn'", "exit_code": 0, "error": null}

{"bytes_written": 10834, "dirs_created": true}

I see! The text content starts with "Comment\0" which is the tEXt format (keyword\0text). The actual data is after "Comment\0". Let me update my extraction script:

→ write_file({"path": "/app/extractor.py", "content": "#!/usr/bin/env python3\n\"\"\"\nChained Forensic Extraction - Multi-stage解密工具\n\"\"\"\n\nimport struct\nimport base64\nimport zlib\nimport re\nimport json\n\ndef read_file_bytes(path):\n    with open(path, 'rb') as f:\n        return f.read()\n\ndef find_zip_signatures(data):\n    \"\"\"查找所有ZIP文件的签名位置 (PK\\x03\\x04)\"\"\"\n    signatures = []\n    sig = b'…)

{"output": "==================================================\nSTAGE 1: ZIP Offset Extraction\n==================================================\nStage 1 - ZIP signatures found at: [80, 336]\nFirst ZIP offset: 80\nSecond ZIP offset: 336\n\n==================================================\nSTAGE 2: PNG tEXt Extraction\n==================================================\nStage 2 - PNG found at offset: 40\nStage 2 - tEXt chunks at: [409]\ntEXt offset: 409\nCRC valid: True\nExtracted text: LSgsK3VvM28uKCApcRdxEW48GDExAmkMLhdpLmM5aSMscRgTI3FoETwrcT4tKDQXbDltMC0XaSkyYiBtMGw/CDNiDj0tFhgfPAACaWk/MzZtbxgJbTk1biIYNSI7GB0pM2MgaTA/Chs/Kiw8aG0zKXU8HD0tNQMKMyo2PmIYAws8Khw9NgwOKW4ZNCtvFjMtIxcpPCNtMw11PDY+LShxEm0MGTMgcTQLbDl1MDsYbCt1PWgLIjULCj1jbG1iMmgdLyhsEHENCyBvDTsiNwI3DHU8NmwwAykLbxlsPmlxbQsyKWgoaT5pNG09cWwtDBgfPAACaWk/MzZsORgJbTk1biIYNSI7KB1xIHFsAGwMPzYgMjYCbRgdbz08LXE2AjUDPWIOPmIYAww8ACAVMAN1KT0qLDwiMGdn\n\n==================================================\nSTAGE 3: Encoding Chain Decoding\n==================================================\nEncoding chain: ['rot13', 'xor', 'base64']\nXOR key: 0\nDecoded intermediate: -(,+hb3b.( )d\u0017d\u0011a<\u001811\u0002v\f.\u0017v.p9v#,d\u0018\u0013#du\u0011<+d>-(4\u0017y9z0-\u0017v)2o z0y?\b3o\u000e=-\u0016\u0018\u001f<\u0000\u0002vv?36zb\u0018\tz95a\"\u00185\";\u0018\u001d)3p v0?\n*,<uz3)h<\u001c=-5\u0003\n3*6>o\u0018\u0003\u000b<*\u001c=6\f\u000e)a\u00194+b\u00163-#\u0017)<#z3\rh<6>-(d\u0012z\f\u00193 d4\u000by9h0;\u0018y+h=u\u000b\"5\u000b\n=pyzo2u\u001d/(y\u0010d\r\u000b b\r;\"7\u00027\fh<6y0\u0003)\u000bb\u0019y>vdz\u000b2)u(v>v4z=dy-\f\u0018\u001f<\u0000\u0002vv?36y9\u0018\tz95a\"\u00185\";(\u001dd dy\u0000y\f?6 26\u0002z\u0018\u001db=<-d6\u00025\u0003=o\u000e>o\u0018\u0003\f<\u0000 \u00150\u0003h)=*,<\"0tt\n\n==================================================\nSTAGE 4: XOR Decryption\n==================================================\nStage 4 - Derived key bytes: [169, 83, 180, 63, 146, 14, 136, 31, 174, 243, 154, 231]\nTraceback (most recent call last):\n  File \"/app/extractor.py\", line 339, in <module>\n    main()\n    ~~~~^^\n  File \"/app/extractor.py\", line 305, in main\n    stage4_result = stage4_decrypt_with_known_plaintext(stage3_result['final_base64'])\n  File \"/app/extractor.py\", line 237, in stage4_decrypt_with_known_plaintext\n    raise ValueError(\"Failed to decrypt with known plaintext attack\")\nValueError: Failed to decrypt with known plaintext attack", "exit_code": 1, "error": null}

{"output": "", "exit_code": -1, "error": "Foreground command uses '&' backgrounding. Use terminal(background=true) for long-lived processes, then run health checks and tests in follow-up terminal calls.", "status": "error"}

The XOR key is 0, which means the data is already Base64 but not actually Base64. Let me look more carefully at the data - the XOR key of 0 means the data is already the intermediate. Let me check if this is valid Base64:

→ terminal({"command": "python3 -c \"\nimport base64\nimport zlib\n\ntext = 'LSgsK3VvM28uKCApcRdxEW48GDExAmkMLhdpLmM5aSMscRgTI3FoETwrcT4tKDQXbDltMC0XaSkyYiBtMGw/CDNiDj0tFhgfPAACaWk/MzZtbxgJbTk1biIYNSI7GB0pM2MgaTA/Chs/Kiw8aG0zKXU8HD0tNQMKMyo2PmIYAws8Khw9NgwOKW4ZNCtvFjMtIxcpPCNtMw11PDY+LShxEm0MGTMgcTQLbDl1MDsYbCt1PWgLIjULCj1jbG1iMmgdLyhsEHENCyBvDTsiNwI3DHU8NmwwAykLbxlsPmlxbQsyKWgoaT5pNG09cWwtDBgfPAACaWk/MzZsOR…)

{"bytes_written": 1899, "dirs_created": true}

{"output": "Base64 decoded length: 312\nDecoded hex: 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\nDecoded (repr): b'-(,+uo3o.( )q\\x17q\\x11n<\\x1811\\x02i\\x0c.\\x17i.c9i#,q\\x18\\x13#qh\\x11<+q>-(4\\x17l9m0-\\x17i)2b m0l?\\x083b\\x0e=-\\x16\\x18\\x1f<\\x00\\x02ii?36mo\\x18\\tm95n\"\\x185\";\\x18\\x1d)3c i0?\\n\\x1b?*,<hm3)u<\\x1c=-5\\x03\\n3*6>b\\x18\\x03\\x0b<*\\x1c=6\\x0c\\x0e)n\\x194+o\\x163-#\\x17)<#m3\\ru<6>-(q\\x12m\\x0c\\x193 q4\\x0bl9u0;\\x18l+u=h\\x0b\"5\\x0b\\n=clmb2h\\x1d/(l\\x10q\\r\\x0b o\\r;\"7\\x027\\x0cu<6l0\\x03)\\x0bo\\x19l>iqm\\x0b2)h(i>i4m=ql-\\x0c\\x18\\x1f<\\x00\\x02ii?36l9\\x18\\tm95n\"\\x185\";(\\x1dq ql\\x00l\\x0c?6 26\\x02m\\x18\\x1do=<-q6\\x025\\x03=b\\x0e>b\\x18\\x03\\x0c<\\x00 \\x150\\x03u)=*,<\"0gg'\nStored CRC: 3890872c, Computed: 3890872c, Match: True\nROT13 decoded: YFtfX3IiZ28hXPNcpEqkRJ48TQRkNzxZYuqcYzZ5nFZfpEtGV3SbRGjepG4gXQDKoQygZP0KnFxlLvOgZTj/PQAvQw0gSutsCNNPnJx/ZmMgoktWoGx1ovVLAFV7TO0cZ2ZtnGN/Puf/Xvj8nT0mXKH8UQ0gADZXZlb2CzVLNjf8Xuj9AtjBXJ4MAPgiSwZgVkpcCPAgZj11CQL+YFukRz0ZTGZtpGDYoQy1ZQfLoPg1CJtYVwHYPw1woT1vZztqYlufRURAPlOiQGfvAjV3QUH8AzjjNlxYokyfCzykoDflXJtbnG5cAT09pJjgQOtsCNNPnJx/ZmMfBEtWoGx1ovVLAFV7XO1kVUSfNTjZCmLtZwLPoEtqom08YKR2NwHQCJVBCzVLNjj8NPNIZNA1XG0dYQjvZTqa\nROT13 decoded (hex): 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\nXOR key 0: b'LSgsK3VvM28uKCApcRdxEW48GDExAmkMLhdpLmM5aSMscRgTI3'...\nXOR key 1: b'MRfrJ2WwL39tJB@qbSeyDV59FEDy@ljLMieqMlL4`RLrbSfUH2'...\nXOR key 2: b'NQeqI1TtO0:wIACraPfzGU6:EFGzCoiONjfrNoO7cQOqaPeVK1'...\nXOR key 3: b'OPdpH0UuN1;vH@Bs`Qg{FT7;DGF{BnhNOkgsOnN6bPNp`QdWJ0'...\nXOR key 4: b'HWcwO7RrI6<qOGEtgV`|AS0<C@A|EioIHl`tHiI1eWIwgVcPM7'...\nXOR key 5: b'IVbvN6SsH7=pNFDufWa}@R1=BA@}DhnHImauIhH0dVHvfWbQL6'...\nXOR key 128: b'\\xcc\\xd3\\xe7\\xf3\\xcb\\xb3\\xd6\\xf6\\xcd\\xb2\\xb8\\xf5\\xcb\\xc3\\xc1\\xf0\\xe3\\xd2\\xe4\\xf8\\xc5\\xd7\\xb4\\xb8\\xc7\\xc4\\xc5\\xf8\\xc1\\xed\\xeb\\xcd\\xcc\\xe8\\xe4\\xf0\\xcc\\xed\\xcd\\xb5\\xe1\\xd3\\xcd\\xf3\\xe3\\xd2\\xe7\\xd4\\xc9\\xb3'...\nXOR key 255: b'\\xb3\\xac\\x98\\x8c\\xb4\\xcc\\xa9\\x89\\xb2\\xcd\\xc7\\x8a\\xb4\\xbc\\xbe\\x8f\\x9c\\xad\\x9b\\x87\\xba\\xa8\\xcb\\xc7\\xb8\\xbb\\xba\\x87\\xbe\\x92\\x94\\xb2\\xb3\\x97\\x9b\\x8f\\xb3\\x92\\xb2\\xca\\x9e\\xac\\xb2\\x8c\\x9c\\xad\\x98\\xab\\xb6\\xcc'...", "exit_code": 0, "error": null}

{"bytes_written": 1571, "dirs_created": true}

The ROT13 decoded text looks like it might be Base64! Let me check if it's valid Base64:

→ write_file({"path": "/app/debug_base64_2.py", "content": "#!/usr/bin/env python3\nimport base64\n\ndef rot13(s):\n    result = []\n    for c in s:\n        if 'a' <= c <= 'z':\n            result.append(chr((ord(c) - ord('a') + 13) % 26 + ord('a')))\n        elif 'A' <= c <= 'Z':\n            result.append(chr((ord(c) - ord('A') + 13) % 26 + ord('A')))\n        else:\n            result.append(c)\n    return…)

{"output": "ROT13 text: YFtfX3IiZ28hXPNcpEqkRJ48TQRkNzxZYuqcYzZ5nFZfpEtGV3SbRGjepG4gXQDKoQygZP0KnFxlLvOg...\nROT13 decoded length: 312\nROT13 decoded hex: 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\nROT13 decoded (repr): b'`[__r\"go!\\\\\\xf3\\\\\\xa4J\\xa4D\\x9e<M\\x04d7<Yb\\xea\\x9cc6y\\x9cV_\\xa4KFWt\\x9bDh\\xde\\xa4n ]\\x00\\xca\\xa1\\x0c\\xa0d\\xfd\\n\\x9c\\\\e.\\xf3\\xa0e8\\xff=\\x00/C\\r J\\xebl\\x08\\xd3O\\x9c\\x9c\\x7ffc \\xa2KV\\xa0lu\\xa2\\xf5K\\x00U{L\\xed\\x1cgfm\\x9cc\\x7f>\\xe7\\xff^\\xf8\\xfc\\x9d=&\\\\\\xa1\\xfcQ\\r \\x006WfV\\xf6\\x0b5K67\\xfc^\\xe8\\xfd\\x02\\xd8\\xc1\\\\\\x9e\\x0c\\x00\\xf8\"K\\x06`VJ\\\\\\x08\\xf0 f=u\\t\\x02\\xfe`[\\xa4G=\\x19Lfm\\xa4`\\xd8\\xa1\\x0c\\xb5e\\x07\\xcb\\xa0\\xf85\\x08\\x9bXW\\x01\\xd8?\\rp\\xa1=og;jb[\\x9fED@>S\\xa2@g\\xef\\x025wAA\\xfc\\x038\\xe36\\\\X\\xa2L\\x9f\\x0b<\\xa4\\xa07\\xe5\\\\\\x9b[\\x9cn\\\\\\x01==\\xa4\\x98\\xe0@\\xebl\\x08\\xd3O\\x9c\\x9c\\x7ffc\\x1f\\x04KV\\xa0lu\\xa2\\xf5K\\x00U{\\\\\\xeddUD\\x9f58\\xd9\\nb\\xedg\\x02\\xcf\\xa0Kj\\xa2m<`\\xa4v7\\x01\\xd0\\x08\\x95A\\x0b5K68\\xfc4\\xf3Hd\\xd05\\\\m\\x1da\\x08\\xefe:\\x9a'", "exit_code": 0, "error": null}

{"bytes_written": 2107, "dirs_created": true}

The decoded data has many non-ASCII bytes. Let me reconsider the encoding order. The problem says the encoding chain is:
1. ROT13
2. XOR with single-byte key
3. Base64

So the original data was: ROT13 -> XOR -> Base64
To decode, I need to: Base64 -> XOR -> ROT13

But wait, let me re-read the problem. It says the text content is encoded with:
1. ROT13
2. XOR with single-byte key
3. Base64

So if I extract the text from PNG, it should be in Base64 format (the final encoding). Let me decode it properly:

→ write_file({"path": "/app/debug_encoding.py", "content": "#!/usr/bin/env python3\nimport base64\nimport struct\n\ndef rot13(s):\n    result = []\n    for c in s:\n        if 'a' <= c <= 'z':\n            result.append(chr((ord(c) - ord('a') + 13) % 26 + ord('a')))\n        elif 'A' <= c <= 'Z':\n            result.append(chr((ord(c) - ord('A') + 13) % 26 + ord('A')))\n        else:\n            result.append…)

{"output": "Actual data from PNG: LSgsK3VvM28uKCApcRdxEW48GDExAmkMLhdpLmM5aSMscRgTI3FoETwrcT4tKDQXbDltMC0XaSkyYiBtMGw/CDNiDj0tFhgfPAAC...\nKey 69: uzva0*i*xzry4E4G+l]ggT,VxE,x&|,sv4]Is4-Gla4{uzdE)|(huE,yj'r(h)mZi'XkuF]MlRT,,mif(*]Y(|c+t]ct~]Kyi&r,...\nKey 71: wbxy2(g(vbta6C6I){_iiR.XvC.v$~.qx6_Gq6/I{y6lwbfC+~*jwC.ah%t*j+kBg%VmwD_K{TR..kgd*(_A*~e)r_er|_Mag$t....\nKey 88: hcgf-7x7ickd)B)V6q@vvM1GiB1i;n1{g)@X{)0Vqf)shcyB4n5uhB1dw:k5u4tCx:IrhA@TqKM11txa57@D5nz6m@zmp@Rdx;k1...\nKey 89: gdhe,6w6jdlc(A(U7rNuu[0HjA0j:`0mh(NWm(1Ure(tgdzA5`4vgA0cx;l4v5sDw;JqgBNSrL[00swb46NC4`y7{Ny{oNQcw:l0...\nKey 90: jeid/5v5gemf+Z+X4sOxxK3IgZ3g9p3li+OVl+2Xsd+qjeaZ6p7wjZ3fu8m7w6rEv8GtjYORsMK33rvy75OF7pb4kObknOTfv9m3...\nKey 91: ifjc.4u4hf{e*Y*W5tPwwL2JhY2h8o2kj*PUk*3Wtc*rifbY7o6xiY2ev9{6x7qFu9HsiZPQt[L22quz64PE6oa5lPal`PSeu8{2...\nKey 94: fieh+1z1ci~j/V/B0oSbb\\7EcV7c=t7}e/SZ}/6Boh/`fiwV2t3afV7jy<~3a2nIz<CpfUSNo^\\77nzu31SJ3tx0|Sx|rSPjz=~7...", "exit_code": 0, "error": null}

{"bytes_written": 1094, "dirs_created": true}

I see the decoded output doesn't look right. Let me check if the data might be different - maybe there's a different tEXt chunk or the encoding is different. Let me look at all tEXt chunks in the file:

→ write_file({"path": "/app/find_chunks.py", "content": "#!/usr/bin/env python3\nimport struct\n\nwith open('/app/data/artifact.bin', 'rb') as f:\n    data = f.read()\n\n# Find all tEXt chunks\ntEXt_marker = b'tEXt'\ntEXt_offsets = []\n\nsearch_start = 0\nwhile True:\n    pos = data.find(tEXt_marker, search_start)\n    if pos == -1:\n        break\n    chunk_start = pos - 4  # length field\n    length = struct…)

{"output": "tEXt chunk at offset 409:\n  Length: 424\n  Content: b'Comment\\x00LSgsK3VvM28uKCApcRdxEW48GDExAmkMLhdpLmM5aSMscRgTI3FoETwrcT4tKDQXbDltMC0XaSkyYiBtMGw/CDNiDj0tFhgfPAACaWk/MzZtbxgJbTk1biIYNSI7GB0pM2MgaTA/Chs/Kiw8aG0zKXU8HD0tNQMKMyo2PmIYAws8Khw9NgwOKW4ZNCtvFjMtIxcpPCNtMw11PDY+LShxEm0MGTMgcTQLbDl1MDsYbCt1PWgLIjULCj1jbG1iMmgdLyhsEHENCyBvDTsiNwI3DHU8NmwwAykLbxlsPmlxbQsyKWgoaT5pNG09cWwtDBgfPAACaWk/MzZsORgJbTk1biIYNSI7KB1xIHFsAGwMPzYgMjYCbRgdbz08LXE2AjUDPWIOPmIYAww8ACAVMAN1KT0qLDwiMGdn'\n  Content (hex): 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\n\nLooking for other chunks...\nChunk at 300: type=b'TION', length=1599292739\nChunk at 366: type=b'hidd', length=167772160\nChunk at 367: type=b'idde', length=104\nChunk at 368: type=b'dden', length=26729\nChunk at 388: type=b'IHDR', length=13\nChunk at 413: type=b'tEXt', length=424\nChunk at 414: type=b'EXtC', length=108660\nChunk at 415: type=b'XtCo', length=27817029\nChunk at 416: type=b'tCom', length=2826192216\nChunk at 417: type=b'Comm', length=1950701684\nChunk at 418: type=b'omme', length=1163424835\nChunk at 419: type=b'mmen', length=1484014447\nChunk at 420: type=b'ment', length=1950576493\nChunk at 425: type=b'LSgs', length=1701737472\nChunk at 426: type=b'SgsK', length=1853096012\nChunk at 436: type=b'uKCA', length=1984770616\nChunk at 437: type=b'KCAp', length=1295136885\nChunk at 438: type=b'CApc', length=842560843\nChunk at 439: type=b'ApcR', length=947211075\nChunk at 440: type=b'pcRd', length=1967866689\nChunk at 441: type=b'cRdx', length=1262698864\nChunk at 442: type=b'RdxE', length=1128362083\nChunk at 443: type=b'dxEW', length=1097884498\nChunk at 449: type=b'GDEx', length=1163342904\nChunk at 450: type=b'DExA', length=1463040071\nChunk at 451: type=b'ExAm', length=876103492\nChunk at 452: type=b'xAmk', length=944194629\nChunk at 453: type=b'AmkM', length=1195656568\nChunk at 454: type=b'mkML', length=1145403457\nChunk at 455: type=b'kMLh', length=1165508973\nChunk at 456: type=b'MLhd', length=2017553771\nChunk at 457: type=b'Lhdp', length=1097689933\nChunk at 458: type=b'hdpL', length=1835748684\nChunk at 459: type=b'dpLm', length=1800227944\nChunk at 460: type=b'pLmM', length=1296853092\nChunk at 465: type=b'aSMs', length=1282231605\nChunk at 466: type=b'SMsc', length=1833776481\nChunk at 467: type=b'MscR', length=1295343955\nChunk at 468: type=b'scRg', length=895570765\nChunk at 469: type=b'cRgT', length=1632849267\nChunk at 470: type=b'RgTI', length=1397584739\nChunk at 475: type=b'FoET', length=1733577011\nChunk at 476: type=b'oETw', length=1414083398\nChunk at 477: type=b'ETwr', length=1228097135\nChunk at 478: type=b'Twrc', length=860254021\nChunk at 479: type=b'wrcT', length=1181697364\nChunk at 484: type=b'tKDQ', length=1919112244\nChunk at 485: type=b'KDQX', length=1666462836\nChunk at 486: type=b'DQXb', length=1412723787\nChunk at 487: type=b'QXbD', length=880036676\nChunk at 488: type=b'XbDl', length=1951089745\nChunk at 489: type=b'bDlt', length=1262768472\nChunk at 490: type=b'DltM', length=1146181730\nChunk at 491: type=b'ltMC', length=1364746820\nChunk at 496: type=b'XaSk', length=1951220528\nChunk at 497: type=b'aSky', length=1296248920\nChunk at 498:

{"bytes_written": 1108, "dirs_created": true}

I see there's only one tEXt chunk. Let me look at the PNG structure more carefully. The PNG file starts at offset 376 (0x178), and the tEXt chunk is at 409 (0x199). Let me examine the PNG structure:

→ write_file({"content": "#!/usr/bin/env python3\nimport struct\n\nwith open('/app/data/artifact.bin', 'rb') as f:\n    data = f.read()\n\n# PNG starts at 376 (0x178)\npng_start = 376\n\n# PNG structure:\n# 8 bytes: PNG signature (89 50 4E 47 0D 0A 1A 0A)\n# Then chunks:\n#   4 bytes: length\n#   4 bytes: type\n#   N bytes: data\n#   4 bytes: CRC\n\nprint(\"PNG structure starting at offset 376:\")\noffset = pn…)

{"output": "PNG structure starting at offset 376:\nChunk at 384: type=b'IHDR', length=13\nChunk at 409: type=b'tEXt', length=424\nContent: b'Comment\\x00LSgsK3VvM28uKCApcRdxEW48GDExAmkMLhdpLmM5aSMscRgTI3FoETwrcT4tKDQXbDltMC0XaSkyYiBtMGw/CDNiDj0tFhgfPAACaWk/MzZtbxgJbTk1biIYNSI7GB0pM2MgaTA/Chs/Kiw8aG0zKXU8HD0tNQMKMyo2PmIYAws8Khw9NgwOKW4ZNCtvFjMtIxcpPCNtMw11PDY+LShxEm0MGTMgcTQLbDl1MDsYbCt1PWgLIjULCj1jbG1iMmgdLyhsEHENCyBvDTsiNwI3DHU8NmwwAykLbxlsPmlxbQsyKWgoaT5pNG09cWwtDBgfPAACaWk/MzZsORgJbTk1biIYNSI7KB1xIHFsAGwMPzYgMjYCbRgdbz08LXE2AjUDPWIOPmIYAww8ACAVMAN1KT0qLDwiMGdn'\nKeyword: b'Comment'\nText (Base64): LSgsK3VvM28uKCApcRdxEW48GDExAmkMLhdpLmM5aSMscRgTI3FoETwrcT4tKDQXbDltMC0XaSkyYiBtMGw/CDNiDj0tFhgfPAACaWk/MzZtbxgJbTk1biIYNSI7GB0pM2MgaTA/Chs/Kiw8aG0zKXU8HD0tNQMKMyo2PmIYAws8Khw9NgwOKW4ZNCtvFjMtIxcpPCNtMw11PDY+LShxEm0MGTMgcTQLbDl1MDsYbCt1PWgLIjULCj1jbG1iMmgdLyhsEHENCyBvDTsiNwI3DHU8NmwwAykLbxlsPmlxbQsyKWgoaT5pNG09cWwtDBgfPAACaWk/MzZsORgJbTk1biIYNSI7KB1xIHFsAGwMPzYgMjYCbRgdbz08LXE2AjUDPWIOPmIYAww8ACAVMAN1KT0qLDwiMGdn", "exit_code": 0, "error": null}

{"bytes_written": 2962, "dirs_created": true}

Now I have the Base64 data. Let me try to decode it properly. The encoding chain is:
1. ROT13
2. XOR with single-byte key
3. Base64

So to decode, I need to:
1. Base64 decode
2. XOR with key (0-255)
3. ROT13

But the XOR key of 0 gave us output that wasn't valid. Let me try a different approach - maybe the Base64 data itself is the encoded form, and I need to decode it first, then apply ROT13, then XOR:

Wait, let me re-read the problem. It says the encoding chain is applied in this order:
1. ROT13
2. XOR with single-byte key
3. Base64

So if the original data was "Hello", it would be:
- ROT13("Hello") = "Uryyb"
- XOR("Uryyb", key) = some bytes
- Base64 of that = the final text

To decode:
- Base64 decode
- XOR with key
- ROT13

But my XOR key 0 gave us gibberish. Let me check if maybe the Base64 data is not valid or if there's something else going on:

→ write_file({"path": "/app/debug_encoding2.py", "content": "#!/usr/bin/env python3\nimport base64\nimport struct\n\ndef rot13(s):\n    result = []\n    for c in s:\n        if 'a' <= c <= 'z':\n            result.append(chr((ord(c) - ord('a') + 13) % 26 + ord('a')))\n        elif 'A' <= c <= 'Z':\n            result.append(chr((ord(c) - ord('A') + 13) % 26 + ord('A')))\n        else:\n            result.appen…)

{"output": "Base64 data: LSgsK3VvM28uKCApcRdxEW48GDExAmkMLhdpLmM5aSMscRgTI3FoETwrcT4tKDQXbDltMC0XaSkyYiBtMGw/CDNiDj0tFhgfPAAC...\nBase64 data length: 416\n\nTrying alternative: Base64 -> ROT13 -> XOR", "exit_code": 0, "error": null}

{"bytes_written": 1560, "dirs_created": true}

No results. Let me think about this differently. Maybe the encoding is:
1. ROT13
2. XOR
3. Base64

But the Base64 data might not be standard Base64 - it could be a modified version or there might be padding issues. Let me check if the data is actually valid Base64:

→ write_file({"path": "/app/debug_base64_valid.py", "content": "#!/usr/bin/env python3\nimport base64\n\n# The Base64 data from PNG\nb64_data = \"LSgsK3VvM28uKCApcRdxEW48GDExAmkMLhdpLmM5aSMscRgTI3FoETwrcT4tKDQXbDltMC0XaSkyYiBtMGw/CDNiDj0tFhgfPAACaWk/MzZtbxgJbTk1biIYNSI7GB0pM2MgaTA/Chs/Kiw8aG0zKXU8HD0tNQMKMyo2PmIYAws8Khw9NgwOKW4ZNCtvFjMtIxcpPCNtMw11PDY+LShxEm0MGTMgcTQLbDl1MDsYbCt1PWgLIjULCj1jbG1iMmgdLyhsEHENCyB…)

{"output": "Base64 data length: 416\nValid Base64! Decoded length: 312\nDecoded hex: 2d282c2b756f336f2e282029711771116e3c18313102690c2e17692e633969232c711813237168113c2b713e2d2834176c396d302d1769293262206d306c3f0833620e3d2d16181f3c000269693f33366d6f18096d39356e221835223b181d2933632069303f0a1b3f2a2c3c686d3329753c1c3d2d35030a332a363e6218030b3c2a1c3d360c0e296e19342b6f16332d2317293c236d330d753c363e2d2871126d0c19332071340b6c3975303b186c2b753d680b22350b0a3d636c6d6232681d2f286c10710d0b206f0d3b223702370c753c366c3003290b6f196c3e69716d0b32296828693e69346d3d716c2d0c181f3c000269693f33366c3918096d39356e221835223b281d7120716c006c0c3f36203236026d181d6f3d3c2d71360235033d620e3e6218030c3c002015300375293d2a2c3c22306767\nFirst 20 bytes: b'-(,+uo3o.( )q\\x17q\\x11n<\\x181'\nFirst 20 bytes (hex): 2d282c2b756f336f2e282029711771116e3c1831\nKey 69: hmin0*v*kmel4R4T+y]ttG,IkR,k&|,fi4]Vf4-Tyn4{hmqR)|(uhR,lw'e(u)zMv'KxhS]ZyEG,,zvs(*]L(|p+g]pg~]Xlv&e,...\nKey 71: jokl2(t(iogn6P6V){_vvE.KiP.i$~.dk6_Td6/V{l6yjosP+~*wjP.nu%g*w+xOt%IzjQ_X{GE..xtq*(_N*~r)e_re|_Znt$g....\nKey 88: upts-7k7vpxq)O)I6d@iiZ1TvO1v;a1{t)@K{)0Ids)fuplO4a5huO1qj:x5h4gPk:VeuN@GdXZ11gkn57@Q5am6z@mzc@Eqk;x1...\nKey 89: tqur,6j6wqyp(N(H7eAhh[0UwN0w:`0zu(AJz(1Her(gtqmN5`4itN0pk;y4i5fQj;WdtOAFeY[00fjo46AP4`l7{Al{bADpj:y0...\nKey 90: wrvq/5i5trzs+M+K4fBkkX3VtM3t9c3yv+BIy+2Kfq+dwrnM6c7jwM3sh8z7j6eRi8TgwLBEfZX33eil75BS7co4xBoxaBGsi9z3...\nKey 91: vswp.4h4us{r*L*J5gCjjY2WuL2u8b2xw*CHx*3Jgp*evsoL7b6kvL2ri9{6k7dSh9UfvMCDg[Y22dhm64CR6bn5yCny`CFrh8{2...\nKey 94: svru+1m1pv~w/I/O0bFoo\\7RpI7p=g7}r/FM}/6Obu/`svjI2g3nsI7wl<~3n2aVm<PcsHFAb^\\77amh31FW3gk0|Fk|eFCwm=~7...", "exit_code": 0, "error": null}

{"bytes_written": 2547, "dirs_created": true}

The output after XOR doesn't look like valid text. Let me reconsider - maybe the encoding chain is different. Let me check if maybe the XOR key is 0 and the Base64 data is actually the final encoded form that just needs to be decoded with ROT13:

Wait, let me re-read the problem more carefully. It says:
1. ROT13
2. XOR with single-byte key
3. Base64

And the challenge says: "The correct key will produce output that: 1. Is valid ASCII after XOR decoding 2. Produces readable Base64-like text after ROT13 decoding"

So after XOR decoding, we should get valid ASCII. Let me check if maybe the XOR key is different:

→ write_file({"path": "/app/debug_xor.py", "content": "#!/usr/bin/env python3\nimport base64\nimport struct\n\ndef rot13(s):\n    result = []\n    for c in s:\n        if 'a' <= c <= 'z':\n            result.append(chr((ord(c) - ord('a') + 13) % 26 + ord('a')))\n        elif 'A' <= c <= 'Z':\n            result.append(chr((ord(c) - ord('A') + 13) % 26 + ord('A')))\n        else:\n            result.append(c)\n…)

{"output": "Base64 data: LSgsK3VvM28uKCApcRdxEW48GDExAmkMLhdpLmM5aSMscRgTI3FoETwrcT4tKDQXbDltMC0XaSkyYiBtMGw/CDNiDj0tFhgfPAAC...\nKey 64: mhlk5/s/nh`i1W1Q.|XqqB)LnW)n#y)cl1XSc1(Q|k1~mhtW,y-pmW)ir\"`-p,Hs\"N}mVX_|@B))sv...\n  ROT13: zuyx5/f/au`v1J1D.|KddO)YaJ)a#l)py1KFp1(D|x1~zugJ,l-czJ)ve\"`-c,Uf\"A}zIK_|@O))fi...\n  Printable ratio: 98.08%\nKey 65: limj4.r.oiah0V0P/}YppC(MoV(o\"x(bm0YRb0)P}j0liuV-x,qlV(hs#a,q-~Ir#O|lWY^}AC((~rw...\n  ROT13: yvzw4.e.bvnu0I0C/}LccP(ZbI(b\"k(oz0LEo0)C}w0yvhI-k,dyI(uf#n,d-~Ve#B|yJL^}NP((~ej...\n  Printable ratio: 98.08%\nKey 66: ojni7-q-ljbk3U3S,~Zss@+NlU+l!{+an3ZQa3*S~i3|ojvU.{/roU+kp b/r.}Jq LoTZ]~B@++}qt...\n  ROT13: bwav7-d-ywox3H3F,~Mff@+AyH+y!{+na3MDn3*F~v3|bwiH.{/ebH+xc o/e.}Wd YbGM]~O@++}dg...\n  Printable ratio: 97.12%\nKey 67: nkoh6,p,mkcj2T2R-[rrA*OmT*m z*`o2[P`2+Rh2}nkwT/z.snT*jq!c.s/|Kp!M~nU[\\CA**|pu...\n  ROT13: axbu6,c,zxpw2G2E-[eeN*BzG*z m*`b2[C`2+Eu2}axjG/m.faG*wd!p.f/|Xc!Z~aH[\\PN**|ch...\n  Printable ratio: 95.83%\nKey 68: ilho1+w+jldm5S5U*x\\uuF-HjS-j'}-gh5\\Wg5,Uxo5zilpS(})tiS-mv&d)t({Lw&JyiR\\[xDF--{wr...\n  ROT13: vyub1+j+wyqz5F5H*k\\hhS-UwF-w'}-tu5\\Jt5,Hkb5mvycF(})gvF-zi&q)g({Yj&WlvE\\[kQS--{je...\n  Printable ratio: 98.72%\nKey 69: hmin0*v*kmel4R4T+y]ttG,IkR,k&|,fi4]Vf4-Tyn4{hmqR)|(uhR,lw'e(u)zMv'KxhS]ZyEG,,zvs...\n  ROT13: uzva0*i*xzry4E4G+l]ggT,VxE,x&|,sv4]Is4-Gla4{uzdE)|(huE,yj'r(h)mZi'XkuF]MlRT,,mif...\n  Printable ratio: 100.00%\nKey 70: knjm3)u)hnfo7Q7W(z^wwD/JhQ/h%/ej7^Ue7.Wzm7xknrQ*+vkQ/ot$f+v*yNu$H{kP^YzFD//yup...\n  ROT13: xawz3)h)uasb7D7J(m^jjQ/WuD/u%/rw7^Hr7.Jmz7kxaeD*+ixD/bg$s+i*lAh$U{xC^LmSQ//lhc...\n  Printable ratio: 98.08%\nKey 71: jokl2(t(iogn6P6V){_vvE.KiP.i$~.dk6_Td6/V{l6yjosP+~*wjP.nu%g*w+xOt%IzjQ_X{GE..xtq...\n  ROT13: wbxy2(g(vbta6C6I){_iiR.XvC.v$~.qx6_Gq6/I{y6lwbfC+~*jwC.ah%t*j+kBg%VmwD_K{TR..kgd...\n  Printable ratio: 100.00%\nKey 72: e`dc='{'f`ha9_9Y&tPyyJ!Df_!f+q!kd9P[k9 Ytc9ve`|_$q%xe_!az*h%x$w@{*Fue^PWtHJ!!w{~...\n  ROT13: r`qp='{'s`un9_9L&gCllW!Qs_!s+d!xq9C[x9 Lgp9ir`|_$d%kr_!nm*u%k$j@{*Shr^CJgUW!!j{~...\n  Printable ratio: 99.36%\nKey 73: daeb<&z&gai`8^8X'uQxxK Eg^ g*p je8QZj8!Xub8wda}^%p$yd^ `{+i$y%vAz+Gtd_QVuIK  vz...\n  ROT13: qnro<&m&tnv`8^8K'hDkkX Rt^ t*c wr8DMw8!Kho8jqn}^%c$lq^ `{+v$l%iNm+Tgq_DIhVX  im...\n  Printable ratio: 97.12%\nKey 74: gbfa?%y%dbjc;];[$vR{{H#Fd]#d)s#if;RYi;\"[va;tgb~]&s'zg]#cx(j'z&uBy(Dwg\\RUvJH##uy|...\n  ROT13: tosn?%l%qowp;];[$iE{{U#Sq]#q)f#vs;ELv;\"[in;gto~]&f'mt]#pk(w'm&hOl(Qjt\\EHiWU##hl|...\n  Printable ratio: 97.76%\nKey 75: fcg`>$x$eckb:\\:Z%wSzzI\"Ge\\\"e(r\"hg:SXh:#Zw`:ufc\\'r&{f\\\"by)k&{'tCx)Evf]STwKI\"\"tx}...\n  ROT13: spt`>$k$rpxo:\\:M%jFmmV\"Tr\\\"r(e\"ut:FKu:#Mj`:hsp\\'e&{s\\\"ol)x&{'gPk)Ris]FGjXV\"\"gk}...\n  Printable ratio: 98.72%\nKey 76: ad`g9##bdle=[=]\"pT}}N%@b[%b/u%o`=T_o=$]pg=radx[ u!|a[%e~.l!| sD.BqaZTSpLN%%sz...\n  ROT13: nq`t9##oqyr=[=]\"cG}}A%@o[%o/h%b`=G_b=$]ct=enqk[ h!|n[%r~.y!| fQ.OdnMGFcYA%%fm...\n  Printable ratio: 96.79%\nKey 77: `eaf8\"~\"cemd<Z<\\#qU||O$AcZ$c.t$na<U^n<%\\qf<s`eyZ!t }`Z$d/m }!rE~/Cp`[URqMO$$r~{...\n  ROT13: `rns8\"~\"przq<M<\\#dH||B$NpM$p.g$an<H^a<%\\ds<f`rlM!g }`M$q/z }!eR~/Pc`[HEdZB$$e~{...\n  Printable ratio: 98.72%\nKey 78: cfbe;!}!`fng?Y?_ rVL'B`Y'`-w'mb?V]m?&_re?pcfzY\"w#~cY'g|,n#~\"qF},@scXVQrNL''q}x...\n  ROT13: psor;!}!`sat?L?_ eIY'O`L'`-j'zo?I]z?&_er?cpsmL\"j#~pL't|,a#~\"dS},@fpKIDeAY''d}k...\n  Printable ratio: 99.36%\nKey 79: bgcd: | agof>X>^!sW~~M&CaX&a,v&lc>W\\l>'^sd>qbg{X#v\"bX&f}-o\"#pG|-ArbYWPsOM&&p|y...\n  ROT13: otpq: | ntbs>K>^!fJ~~Z&PnK&n,i&yp>J\\y>'^fq>dot{K#i\"oK&s}-b\"#cT|-NeoLJCfBZ&&c|l...\n  Printable ratio: 97.76%\nKey 80: }x|{%?c?~xpy!G!A>lHaaR9\\~G9~3i9s|!HCs!8Al{!n}xdG<i=`}G9yb2p=`<oXc2^m}FHOlPR99ocf...\n  ROT13: }k|{%?p?~kcl!T!N>yUnnE9\\~T9~3v9f|!UPf!8Ny{!a}kqT<v=`}T9lo2c=`<bKp2^z}SUByCE99bps...\n  Printable ratio: 99.68%\nKey 81: |y}z$>b>yqx F @?mI``S8]F82h8r} IBr 9@mz o|yeF=h<a|F8xc3q<a=nYb3_l|GINmQS88nbg...\n  ROT13: |l}m$>o>ldk S @?zV``F8]S82u8e} VOe 9@zm b|lrS=u<n|S8kp3d<n=aLo3_y

{"bytes_written": 3630, "dirs_created": true}

I see many keys with high printable ratios! Let me focus on finding the correct one. The key should produce output that:
1. Is valid ASCII after XOR decoding
2. Produces readable Base64-like text after ROT13 decoding

Let me check which of these produce valid Base64 after ROT13:

→ write_file({"path": "/app/debug_base64_3.py", "content": "#!/usr/bin/env python3\nimport base64\nimport struct\n\ndef rot13(s):\n    result = []\n    for c in s:\n        if 'a' <= c <= 'z':\n            result.append(chr((ord(c) - ord('a') + 13) % 26 + ord('a')))\n        elif 'A' <= c <= 'Z':\n            result.append(chr((ord(c) - ord('A') + 13) % 26 + ord('A')))\n        else:\n            result.append…)

{"output": "Base64 data: LSgsK3VvM28uKCApcRdxEW48GDExAmkMLhdpLmM5aSMscRgTI3FoETwrcT4tKDQXbDltMC0XaSkyYiBtMGw/CDNiDj0tFhgfPAAC...\nKey 88:\n  XOR decoded: upts-7k7vpxq)O)I6d@iiZ1TvO1v;a1{t)@K{)0Ids)fuplO4a5huO1qj:x5h4gPk:VeuN@GdXZ11gkn...\n  ROT13 decoded: hcgf-7x7ickd)B)V6q@vvM1GiB1i;n1{g)@X{)0Vqf)shcyB4n5uhB1dw:k5u4tCx:IrhA@TqKM11txa...\n  Base64 ratio: 82.69%\n  Not valid Base64: Incorrect padding\n\nKey 89:\n  XOR decoded: tqur,6j6wqyp(N(H7eAhh[0UwN0w:`0zu(AJz(1Her(gtqmN5`4itN0pk;y4i5fQj;WdtOAFeY[00fjo...\n  ROT13 decoded: gdhe,6w6jdlc(A(U7rNuu[0HjA0j:`0mh(NWm(1Ure(tgdzA5`4vgA0cx;l4v5sDw;JqgBNSrL[00swb...\n  Base64 ratio: 83.01%\n  Not valid Base64: Incorrect padding\n\nKey 90:\n  XOR decoded: wrvq/5i5trzs+M+K4fBkkX3VtM3t9c3yv+BIy+2Kfq+dwrnM6c7jwM3sh8z7j6eRi8TgwLBEfZX33eil...\n  ROT13 decoded: jeid/5v5gemf+Z+X4sOxxK3IgZ3g9p3li+OVl+2Xsd+qjeaZ6p7wjZ3fu8m7w6rEv8GtjYORsMK33rvy...\n  Base64 ratio: 100.00%\n  Final decoded length: 232\n  Final decoded (hex): 8de89dff9bf981e99ff99f97e2c3b1c4adc8819de0f69de58be39597ed97b1dfaa8de699ea9ef08d9ddfbbc9bbc3aac4bfc1ad8d8391b0c2b7debbf2ef9385ee96f890e6e49ce4dfbfd9b7c2b08dadc8acdbbbdffec4ad8db2c2bdccaaf0e2c3b1c4adc8819fe0f69de58be39597ec97bbc9feccaa8def94ec83ef9be683ea9ff09cee9dfedd8391b0c2b7debbf2ed9385ee96f890e6e499e4ccacc8feccbac0b7c3e4feaadfeec3b9fd9edeaddaeedfba8c8391b0c2b7debbf2ea9385ee96f890e6e49de4fe9bee8ce88af29aec8aece4f9b6c8fec8a6cbb7c1aaf0e2c8b0c981c0bfdfb5c8ac93\n  Final decoded (repr): b'\\x8d\\xe8\\x9d\\xff\\x9b\\xf9\\x81\\xe9\\x9f\\xf9\\x9f\\x97\\xe2\\xc3\\xb1\\xc4\\xad\\xc8\\x81\\x9d\\xe0\\xf6\\x9d\\xe5\\x8b\\xe3\\x95\\x97\\xed\\x97\\xb1\\xdf\\xaa\\x8d\\xe6\\x99\\xea\\x9e\\xf0\\x8d\\x9d\\xdf\\xbb\\xc9\\xbb\\xc3\\xaa\\xc4\\xbf\\xc1\\xad\\x8d\\x83\\x91\\xb0\\xc2\\xb7\\xde\\xbb\\xf2\\xef\\x93\\x85\\xee\\x96\\xf8\\x90\\xe6\\xe4\\x9c\\xe4\\xdf\\xbf\\xd9\\xb7\\xc2\\xb0\\x8d\\xad\\xc8\\xac\\xdb\\xbb\\xdf\\xfe\\xc4\\xad\\x8d\\xb2\\xc2\\xbd\\xcc\\xaa\\xf0\\xe2\\xc3\\xb1\\xc4\\xad\\xc8\\x81\\x9f\\xe0\\xf6\\x9d\\xe5\\x8b\\xe3\\x95\\x97\\xec\\x97\\xbb\\xc9\\xfe\\xcc\\xaa\\x8d\\xef\\x94\\xec\\x83\\xef\\x9b\\xe6\\x83\\xea\\x9f\\xf0\\x9c\\xee\\x9d\\xfe\\xdd\\x83\\x91\\xb0\\xc2\\xb7\\xde\\xbb\\xf2\\xed\\x93\\x85\\xee\\x96\\xf8\\x90\\xe6\\xe4\\x99\\xe4\\xcc\\xac\\xc8\\xfe\\xcc\\xba\\xc0\\xb7\\xc3\\xe4\\xfe\\xaa\\xdf\\xee\\xc3\\xb9\\xfd\\x9e\\xde\\xad\\xda\\xee\\xdf\\xba\\x8c\\x83\\x91\\xb0\\xc2\\xb7\\xde\\xbb\\xf2\\xea\\x93\\x85\\xee\\x96\\xf8\\x90\\xe6\\xe4\\x9d\\xe4\\xfe\\x9b\\xee\\x8c\\xe8\\x8a\\xf2\\x9a\\xec\\x8a\\xec\\xe4\\xf9\\xb6\\xc8\\xfe\\xc8\\xa6\\xcb\\xb7\\xc1\\xaa\\xf0\\xe2\\xc8\\xb0\\xc9\\x81\\xc0\\xbf\\xdf\\xb5\\xc8\\xac\\x93'\n\nKey 91:\n  XOR decoded: vswp.4h4us{r*L*J5gCjjY2WuL2u8b2xw*CHx*3Jgp*evsoL7b6kvL2ri9{6k7dSh9UfvMCDg[Y22dhm...\n  ROT13 decoded: ifjc.4u4hf{e*Y*W5tPwwL2JhY2h8o2kj*PUk*3Wtc*rifbY7o6xiY2ev9{6x7qFu9HsiZPQt[L22quz...\n  Base64 ratio: 87.50%\n  Not valid Base64: Invalid base64-encoded string: number of data characters (273) cannot be 1 more than a multiple of 4\n\nKey 94:\n  XOR decoded: svru+1m1pv~w/I/O0bFoo\\7RpI7p=g7}r/FM}/6Obu/`svjI2g3nsI7wl<~3n2aVm<PcsHFAb^\\77amh...\n  ROT13 decoded: fieh+1z1ci~j/V/B0oSbb\\7EcV7c=t7}e/SZ}/6Boh/`fiwV2t3afV7jy<~3a2nIz<CpfUSNo^\\77nzu...\n  Base64 ratio: 84.94%\n  Not valid Base64: Incorrect padding", "exit_code": 0, "error": null}

{"bytes_written": 1599, "dirs_created": true}

Key 90 gives us Base64-like output with 100% Base64 ratio! But the final decoded data looks like binary, not text. Let me check if maybe I need to apply XOR again or if the key is wrong. Let me try a different approach - maybe the Base64 data itself needs to be processed differently.

Actually, wait - let me re-read the problem. It says the encoding chain is:
1. ROT13
2. XOR with single-byte key
3. Base64

And the decoded intermediate should be "valid Base64 string". So after decoding (Base64 -> XOR -> ROT13), we should get a Base64 string that we then need to decode again in Stage 4.

Let me check if the ROT13 decoded text from key 90 is valid Base64:

→ write_file({"path": "/app/debug_key90.py", "content": "#!/usr/bin/env python3\nimport base64\n\n# Key 90 ROT13 decoded text\nrot13_decoded = \"jeid/5v5gemf+Z+X4sOxxK3IgZ3g9p3li+OVl+2Xsd+qjeaZ6p7wjZ3fu8m7w6rEv8GtjYORsMK33rvy...\"\n\n# Try to decode it as Base64\ntry:\n    decoded = base64.b64decode(rot13_decoded)\n    print(f\"Base64 decoded length: {len(decoded)}\")\n    print(f\"Decoded hex: {decoded.hex()}…)

{"output": "Base64 decoded length: 60\nDecoded hex: 8de89dff9bf981e99ff99f97e2c3b1c4adc8819de0f69de58be39597ed97b1dfaa8de699ea9ef08d9ddfbbc9bbc3aac4bfc1ad8d8391b0c2b7debbf2\nDecoded (repr): b'\\x8d\\xe8\\x9d\\xff\\x9b\\xf9\\x81\\xe9\\x9f\\xf9\\x9f\\x97\\xe2\\xc3\\xb1\\xc4\\xad\\xc8\\x81\\x9d\\xe0\\xf6\\x9d\\xe5\\x8b\\xe3\\x95\\x97\\xed\\x97\\xb1\\xdf\\xaa\\x8d\\xe6\\x99\\xea\\x9e\\xf0\\x8d\\x9d\\xdf\\xbb\\xc9\\xbb\\xc3\\xaa\\xc4\\xbf\\xc1\\xad\\x8d\\x83\\x91\\xb0\\xc2\\xb7\\xde\\xbb\\xf2'\nDerived key bytes: [222, 173, 222, 173, 222, 173, 222, 173, 222, 173, 222, 173]\nDerived key (hex): deaddeaddeaddeaddeaddead\n\nKey length 1: de\nDecrypted: b\"S6C!E'_7A'AI<\\x1do\\x1as\\x16_C>(C;U=KI3Io\\x01tS8G4@.SC\\x01e\\x17e\\x1dt\\x1aa\\x1fsS]On\\x1ci\\x00e,\"\n\nKey length 2: dead\nDecrypted: b'SECRET_DATA:<noise_0>[CHUNK:3:ort 8443. Credentials ]<noise_'\n  *** FOUND! ***\n  Decrypted text: SECRET_DATA:<noise_0>[CHUNK:3:ort 8443. Credentials ]<noise_\n\nKey length 3: deadde\nDecrypted: b\"SEC!6'_DA'2I<no\\x1a\\x00\\x16_0>(0;UNKI@IortSKG43.S0\\x01ede\\x1d\\x07\\x1aalsS.Onoi\\x00\\x16,\"\n\nKey length 4: deaddead\nDecrypted: b'SECRET_DATA:<noise_0>[CHUNK:3:ort 8443. Credentials ]<noise_'\n  *** FOUND! ***\n  Decrypted text: SECRET_DATA:<noise_0>[CHUNK:3:ort 8443. Credentials ]<noise_", "exit_code": 0, "error": null}

{"bytes_written": 2161, "dirs_created": true}

Excellent! Key 90 gives us `dead` as the XOR key (2 bytes: 0xDE 0xAD). But the decrypted text shows `<noise_0>` which suggests there's some noise in the data. Let me check if maybe the ROT13 decoded text needs to be padded or if there's an issue with the Base64:

→ write_file({"path": "/app/debug_full.py", "content": "#!/usr/bin/env python3\nimport base64\nimport struct\n\ndef rot13(s):\n    result = []\n    for c in s:\n        if 'a' <= c <= 'z':\n            result.append(chr((ord(c) - ord('a') + 13) % 26 + ord('a')))\n        elif 'A' <= c <= 'Z':\n            result.append(chr((ord(c) - ord('A') + 13) % 26 + ord('A')))\n        else:\n            result.append(c)\…)

{"output": "Base64 data length: 416\nBase64 data: LSgsK3VvM28uKCApcRdxEW48GDExAmkMLhdpLmM5aSMscRgTI3FoETwrcT4tKDQXbDltMC0XaSkyYiBtMGw/CDNiDj0tFhgfPAACaWk/MzZtbxgJbTk1biIYNSI7GB0pM2MgaTA/Chs/Kiw8aG0zKXU8HD0tNQMKMyo2PmIYAws8Khw9NgwOKW4ZNCtvFjMtIxcpPCNtMw11PDY+LShxEm0MGTMgcTQLbDl1MDsYbCt1PWgLIjULCj1jbG1iMmgdLyhsEHENCyBvDTsiNwI3DHU8NmwwAykLbxlsPmlxbQsyKWgoaT5pNG09cWwtDBgfPAACaWk/MzZsORgJbTk1biIYNSI7KB1xIHFsAGwMPzYgMjYCbRgdbz08LXE2AjUDPWIOPmIYAww8ACAVMAN1KT0qLDwiMGdn\n\nBase64 decoded length: 312\nBase64 decoded (hex): 2d282c2b756f336f2e282029711771116e3c18313102690c2e17692e633969232c711813237168113c2b713e2d2834176c396d302d1769293262206d306c3f0833620e3d2d16181f3c000269693f33366d6f18096d39356e221835223b181d2933632069303f0a1b3f2a2c3c686d3329753c1c3d2d35030a332a363e6218030b3c2a1c3d360c0e296e19342b6f16332d2317293c236d330d753c363e2d2871126d0c19332071340b6c3975303b186c2b753d680b22350b0a3d636c6d6232681d2f286c10710d0b206f0d3b223702370c753c366c3003290b6f196c3e69716d0b32296828693e69346d3d716c2d0c181f3c000269693f33366c3918096d39356e221835223b281d7120716c006c0c3f36203236026d181d6f3d3c2d71360235033d620e3e6218030c3c002015300375293d2a2c3c22306767\n\nXOR decoded (hex): 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\nXOR decoded (repr): b'wrvq/5i5trzs+M+K4fBkkX3VtM3t9c3yv+BIy+2Kfq+dwrnM6c7jwM3sh8z7j6eRi8TgwLBEfZX33eil75BS7co4xBoxaBGsi9z3jePAepvf27is/fFgwoYPipld8BYQfpFglVTs4Cnq5LiwyMsfy7iW/fldwr+H7VCiz+nQ6c/jaB6q/g2QxoQPg9678h2Gur6J+WQz5WaxmXmV/fl6jYsQ5C6d3+7Qhs2r3d3n7g+6wVBEfZX33eil6cBS7co4xBoxarG+z+6Z6VelzhlX7BG5gfw+lXoYg8Td8BYVfZzOjY/sgpvfxj=='\n\nROT13 decoded: jeid/5v5gemf+Z+X4sOxxK3IgZ3g9p3li+OVl+2Xsd+qjeaZ6p7wjZ3fu8m7w6rEv8GtjYORsMK33rvy75OF7pb4kObknOTfv9m3wrCNrcis27vf/sStjbLCvcyq8OLDscStyIGf4Pad5YvjlZfsl7vJ/syqje+U7IPvm+aD6p/wnO6d/t2DkbDCt9678u2The6W+JDm5JnkzKzI/sy6wLfD5P6q3+7Duf2e3q3a7t+6jIORsMK33rvy6pOF7pb4kObkneT+m+6M6IrymuyK7OT5tsj+yKbLt8Gq8OLIsMmBwL/ftciskw==\n\nFinal Base64 decoded length: 232\nFinal (hex): 8de89dff9bf981e99ff99f97e2c3b1c4adc8819de0f69de58be39597ed97b1dfaa8de699ea9ef08d9ddfbbc9bbc3aac4bfc1ad8d8391b0c2b7debbf2ef9385ee96f890e6e49ce4dfbfd9b7c2b08dadc8acdbbbdffec4ad8db2c2bdccaaf0e2c3b1c4adc8819fe0f69de58be39597ec97bbc9feccaa8def94ec83ef9be683ea9ff09cee9dfedd8391b0c2b7debbf2ed9385ee96f890e6e499e4ccacc8feccbac0b7c3e4feaadfeec3b9fd9edeaddaeedfba8c8391b0c2b7debbf2ea9385ee96f890e6e49de4fe9bee8ce88af29aec8aece4f9b6c8fec8a6cbb7c1aaf0e2c8b0c981c0bfdfb5c8ac93\nFinal (repr): b'\\x8d\\xe8\\x9d\\xff\\x9b\\xf9\\x81\\xe9\\x9f\\xf9\\x9f\\x97\\xe2\\xc3\\xb1\\xc4\\xad\\xc8\\x81\\x9d\\xe0\\xf6\\x9d\\xe5\\x8b\\xe3\\x95\\x97\\xed\\x97\\xb1\\xdf\\xaa\\x8d\\xe6\\x99\\xea\\x9e\\xf0\\x8d\\x9d\\xdf\\xbb\\xc9\\xbb\\xc3\\xaa\\xc4\\xbf\\xc1\\xad\\x8d\\x83\\x91\\xb0\\xc2\\xb7\\xde\\xbb\\xf2\\xef\\x93\\x85\\xee\\x96\\xf8\\x90\\xe6\\xe4\\x9c\\xe4\\xdf\\xbf\\xd9\\xb7\\xc2\\xb0\\x8d\\xad\\xc8\\xac\\xdb\\xbb\\xdf\\xfe\\xc4\\xad\\x8d\\xb2\\xc2\\xbd\\xcc\\xaa\\xf0\\xe2\\xc3\\xb1\\xc4\\xad\\xc8\\x81\\x9f\\xe0\\xf6\\x9d\\xe5\\x8b\\xe3\\x95\\x97\\xec\\x97\\xbb\\xc9\\xfe\\xcc\\xaa\\x8d\\xef\\x94\\xec\\x83\\xef\\x9b\\xe6\\x83\\xea\\x9f\\xf0\\x9c\\xee\\x9d\\xfe\\xdd\\x83\\x91\\xb0\\xc2\\xb7\\xde\\xbb\\xf2\\xed\\x93\\x85\\xee\\x96\\xf8\\x90\\xe6\\xe4\\x99\\xe4\\xcc\\xac\\xc8\\xfe\\xcc\\xba\\xc0\\xb7\\xc3\\xe4\\xfe\\xaa\\xdf\\xee\\xc3\\xb9\\xfd\\x9e\\xde\\xad\\xda\\xee\\xdf\\xba\\x8c\\x83\\x91\\xb0\\xc2\\xb7\\xde\\xbb\\xf2\\xea\\x93\\x85\\xee\\x96\\xf8\\x90\\xe6\\xe4\\x9d\\xe4\\xfe\\x9b\\xee\\x8c\\x