Wikidata entity: Q484598
Contact
| P856 | official website | The Official CAPTCHA Site |
| P373 | Commons category | String | Captcha | ??? |
| P1343 | described by source | ... | Q47482102 (Security Engineering: A Guide to Building Dependable Distributed Systems, 2nd edition) | Security Engineering: A Guide to Building Dependable Distributed Systems, 2nd edition |
| P1889 | different from | ... | Q188054 (reCAPTCHA) | reCAPTCHA |
| P366 | has use | ... | Q115667577 (discrimination) | discrimination |
| P571 | inception | ... | 2000-01-01 | ??? |
| P31 | instance of | ... | Q228502 (access control) | access control |
| P3938 | named by | ... | Q102276762 (Nicholas John Hopper) | Nicholas John Hopper |
| P3938 | named by | ... | Q6243987 (John Langford) | John Langford |
| P3938 | named by | ... | Q92626 (Manuel Blum) | Manuel Blum |
| P3938 | named by | ... | Q92984 (Luis von Ahn) | Luis von Ahn |
| P268 | Bibliothèque nationale de France ID | 17001362r |
| P11129 | C64-Wiki ID | Sicherheitsabfrage |
| P1417 | Encyclopædia Britannica Online ID | topic/CAPTCHA |
| P2163 | FAST ID | 1747935 |
| P646 | Freebase ID | /m/01hl4j |
| P9100 | GitHub topic | captcha |
| P227 | GND ID | 4828986-3 |
| P11514 | Great Russian Encyclopedia portal ID | kapcha-4fcbaa |
| P269 | IdRef ID | 189468181 |
| P10332 | Kaspersky Encyclopedia ID | captcha |
| P13484 | Know Your Meme slug | captcha |
| P244 | Library of Congress authority ID | sh2009002990 |
| P6366 | Microsoft Academic ID (discontinued) | 163339463 |
| P8885 | Namuwiki ID | CAPTCHA |
| P8189 | National Library of Israel J9U ID | 987007542910105171 |
| P10283 | OpenAlex ID | C163339463 |
| P3417 | Quora topic ID | CAPCHA |
| P10376 | ScienceDirect topic ID | computer-science/captcha |
| P12800 | Vikidia article ID | es:CAPTCHA |
| P12800 | Vikidia article ID | fr:CAPTCHA |
| P13591 | Yale LUX ID | concept/c5dea8ca-119a-4b38-9e26-77d880d4dffc |
| P3553 | Zhihu topic ID | 19560490 |
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