The Sigma Protocol
E740000
The Sigma Protocol is a posthumously published thriller novel by Robert Ludlum that follows a man uncovering a vast global conspiracy tied to secret financial and political powers.
All labels observed (1)
| Label | Occurrences |
|---|---|
| The Sigma Protocol canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T8498707 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: The Sigma Protocol Context triple: [Robert Ludlum, notableWork, The Sigma Protocol]
-
A.
Merkle puzzles
Merkle puzzles are an early cryptographic protocol that introduced the concept of public-key exchange by allowing two parties to establish a shared secret over an insecure channel using computationally asymmetric “puzzle” problems.
-
B.
Secrecy, Authentication, and Public Key Systems
"Secrecy, Authentication, and Public Key Systems" is Ralph Merkle's influential doctoral thesis that helped lay the foundations of modern public-key cryptography and secure communication protocols.
-
C.
Shamir secret sharing scheme
The Shamir secret sharing scheme is a cryptographic method that divides a secret into multiple parts so that only a specified threshold of parts can reconstruct the original secret, while fewer parts reveal nothing.
-
D.
Tokens of Trust
Tokens of Trust is a theological book by Rowan Williams that offers an accessible exploration of the core beliefs and affirmations of the Christian faith.
-
E.
Authenticum
Authenticum is a medieval Latin collection of the Novellae (new laws) of the Byzantine emperor Justinian I, widely used in Western European legal scholarship.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: The Sigma Protocol Target entity description: The Sigma Protocol is a posthumously published thriller novel by Robert Ludlum that follows a man uncovering a vast global conspiracy tied to secret financial and political powers.
-
A.
Merkle puzzles
Merkle puzzles are an early cryptographic protocol that introduced the concept of public-key exchange by allowing two parties to establish a shared secret over an insecure channel using computationally asymmetric “puzzle” problems.
-
B.
Secrecy, Authentication, and Public Key Systems
"Secrecy, Authentication, and Public Key Systems" is Ralph Merkle's influential doctoral thesis that helped lay the foundations of modern public-key cryptography and secure communication protocols.
-
C.
Shamir secret sharing scheme
The Shamir secret sharing scheme is a cryptographic method that divides a secret into multiple parts so that only a specified threshold of parts can reconstruct the original secret, while fewer parts reveal nothing.
-
D.
Tokens of Trust
Tokens of Trust is a theological book by Rowan Williams that offers an accessible exploration of the core beliefs and affirmations of the Christian faith.
-
E.
Authenticum
Authenticum is a medieval Latin collection of the Novellae (new laws) of the Byzantine emperor Justinian I, widely used in Western European legal scholarship.
- F. None of above. chosen
Statements (32)
| Predicate | Object |
|---|---|
| instanceOf |
novel
ⓘ
posthumously published work ⓘ |
| author | Robert Ludlum ⓘ |
| countryOfOrigin |
United States
ⓘ
linked to:
United States of America
|
| genre |
conspiracy fiction
ⓘ
spy fiction ⓘ thriller ⓘ |
| hasCharacter | Anna Navarro ⓘ |
| hasISBN | 9780312269590 ⓘ |
| hasMainCharacter | Ben Hartman ⓘ |
| hasTheme |
corruption
ⓘ
financial conspiracy ⓘ political conspiracy ⓘ post–World War II legacy ⓘ power ⓘ surveillance ⓘ |
| language | English ⓘ |
| mediaType |
hardcover
ⓘ
paperback ⓘ print ⓘ |
| narrativePerspective | third-person ⓘ |
| notableFor | being one of Robert Ludlum's last novels ⓘ |
| partOf |
Robert Ludlum bibliography
ⓘ
linked to:
Robert Ludlum
|
| plotFocus |
global conspiracy
ⓘ
political manipulation ⓘ secret financial powers ⓘ |
| publicationDate | 2001 ⓘ |
| publisher | St. Martin's Press ⓘ |
| setting |
Germany
ⓘ
Spain ⓘ Switzerland ⓘ United States ⓘ
linked to:
United States of America
|
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: The Sigma Protocol Description of subject: The Sigma Protocol is a posthumously published thriller novel by Robert Ludlum that follows a man uncovering a vast global conspiracy tied to secret financial and political powers.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.