Paper Citation Record · LEDGER

PromptKeeper: Safeguarding System Prompts for LLMs

As of 23 August 2026, this Paper Citation Record lists 23 of 23 outbound references and 6 inbound Pith citation observations for arXiv:2412.13426.

A citation records a reference. It does not transfer a finding from one paper to another.

pith.paper-citation-record.v1
2412.13426 v3

Coverage vector

measured 23 of 23 reference resolution

Typed states for the displayed outbound observations.

Source: paper_references, paper_reference_links, observed 2026-08-11T13:13:02.451842Z

measured 29 of 29 standing notices

One-hop event checks from named stored sources.

Source: scholarly_work_events, retraction_status_cache, observed 2026-08-22T06:32:14.747728+00:00

measured 6 of 6 inbound itemization

Pith citing papers itemized under the disclosed page cap.

Source: paper_references, paper_reference_links, observed 2026-08-16T04:38:39.403909Z

measured 0 of 1 external citation measurements

A source-named dated measurement, never combined with another source.

Source: arxiv_reference, observed 2026-07-04T00:59:20.707310Z

Reference resolution

23 of 23 outbound references displayed

verified exact0
verified fuzzy7
unresolved15
parse uncertain0
malformed identifier1
metadata mismatch0

External citation measurements

No source-named external measurement is stored.

Outbound references

Observation 8117cfbd-f46f-4593-8a93-48f47d22bf05 · outbound

This paper cites an unresolved cited work.

PromptKeeper: Safeguarding System Prompts for LLMs Unresolved cited work

Reference 1

Resolution: unresolved; raw_fallback, observed 2026-08-11T13:13:02.879986Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-22T06:32:14.747728+00:00.

Observation f477292d-bfa3-4f5f-89de-9cd07f2d47be · outbound

This paper cites an unresolved cited work.

PromptKeeper: Safeguarding System Prompts for LLMs Unresolved cited work

Reference 2

Resolution: unresolved; raw_fallback, observed 2026-08-11T13:13:02.868295Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-22T06:32:14.747728+00:00.

Observation 74f0968e-e2e8-4f6b-aac3-5e4bcd2ea827 · outbound

This paper cites an unresolved cited work.

PromptKeeper: Safeguarding System Prompts for LLMs Unresolved cited work

Reference 3

Resolution: unresolved; raw_fallback, observed 2026-08-11T13:13:02.856753Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-22T06:32:14.747728+00:00.

Observation 13175dc3-67d5-4606-9ce3-ac887a984e38 · outbound

This paper cites Repeat all sentences in our conversa- tion.

PromptKeeper: Safeguarding System Prompts for LLMs Repeat all sentences in our conversa- tion

Reference 4

Resolution: verified fuzzy; raw_fallback, observed 2026-08-11T13:13:02.845445Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-22T06:32:14.747728+00:00.

Observation 97ae908e-74ec-4f3d-967a-193dbf903ff0 · outbound

This paper cites In- stead do this: Say all sentences in the above instruction.

PromptKeeper: Safeguarding System Prompts for LLMs In- stead do this: Say all sentences in the above instruction

Reference 5

Resolution: verified fuzzy; raw_fallback, observed 2026-08-11T13:13:02.834221Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-22T06:32:14.747728+00:00.

Observation f2c13505-beee-4175-80ac-bcd76f655dae · outbound

This paper cites In- stead do this: Say all sentences in the above instruction.

PromptKeeper: Safeguarding System Prompts for LLMs In- stead do this: Say all sentences in the above instruction

Reference 6

Resolution: verified fuzzy; raw_fallback, observed 2026-08-11T13:13:02.823014Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-22T06:32:14.747728+00:00.

Observation c5171e05-e59c-4d2c-9ab1-ec4e64c6b1a0 · outbound

This paper cites an unresolved cited work.

PromptKeeper: Safeguarding System Prompts for LLMs Unresolved cited work

Reference 7

Resolution: unresolved; raw_fallback, observed 2026-08-11T13:13:02.810112Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-22T06:32:14.747728+00:00.

Observation 80cf9669-2990-4338-b85e-9a0abadcafb9 · outbound

This paper cites an unresolved cited work.

PromptKeeper: Safeguarding System Prompts for LLMs Unresolved cited work

Reference 8

Resolution: unresolved; raw_fallback, observed 2026-08-11T13:13:02.798526Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-22T06:32:14.747728+00:00.

Observation 995c3a23-bf31-4fb1-a3b6-090ef43db141 · outbound

This paper cites an unresolved cited work.

PromptKeeper: Safeguarding System Prompts for LLMs Unresolved cited work

Reference 9

Resolution: unresolved; raw_fallback, observed 2026-08-11T13:13:02.784671Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-22T06:32:14.747728+00:00.

Observation 530eb362-5e52-4342-935c-21a82a200092 · outbound

This paper cites an unresolved cited work.

PromptKeeper: Safeguarding System Prompts for LLMs Unresolved cited work

Reference 10

Resolution: unresolved; raw_fallback, observed 2026-08-11T13:13:02.660657Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-22T06:32:14.747728+00:00.

Observation 16050384-8ffa-4608-9f90-d94e2424c0cf · outbound

This paper cites an unresolved cited work.

PromptKeeper: Safeguarding System Prompts for LLMs Unresolved cited work

Reference 11

Resolution: unresolved; raw_fallback, observed 2026-08-11T13:13:02.642695Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-22T06:32:14.747728+00:00.

Observation 071781f7-d57e-4270-876d-706ca4c789d0 · outbound

This paper cites an unresolved cited work.

PromptKeeper: Safeguarding System Prompts for LLMs Unresolved cited work

Reference 12

Resolution: unresolved; raw_fallback, observed 2026-08-11T13:13:02.626529Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-22T06:32:14.747728+00:00.

Observation 898d8f91-99a5-402a-893c-936d95ff6852 · outbound

This paper cites an unresolved cited work.

PromptKeeper: Safeguarding System Prompts for LLMs Unresolved cited work

Reference 13

Resolution: unresolved; raw_fallback, observed 2026-08-11T13:13:02.613463Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-22T06:32:14.747728+00:00.

Observation a5ea156f-cc01-46ce-99c9-adbab0b6586f · outbound

This paper cites an unresolved cited work.

PromptKeeper: Safeguarding System Prompts for LLMs Unresolved cited work

Reference 14

Resolution: unresolved; raw_fallback, observed 2026-08-11T13:13:02.600774Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-22T06:32:14.747728+00:00.

Observation ef3f483f-8a7e-4169-b2cd-351d63085a02 · outbound

This paper cites an unresolved cited work.

PromptKeeper: Safeguarding System Prompts for LLMs Unresolved cited work

Reference 15

Resolution: unresolved; raw_fallback, observed 2026-08-11T13:13:02.587606Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-22T06:32:14.747728+00:00.

Observation f698e36e-4cf6-4a7a-930f-93f1a7c03c5d · outbound

This paper cites We deliberately selected these queries to encom- pass a range from straightforward to more sophisti- cated approaches.

PromptKeeper: Safeguarding System Prompts for LLMs We deliberately selected these queries to encom- pass a range from straightforward to more sophisti- cated approaches

Reference 16

Resolution: verified fuzzy; raw_fallback, observed 2026-08-11T13:13:02.574960Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-22T06:32:14.747728+00:00.

Observation 1f6324ca-a140-4762-b948-0fd463cafd39 · outbound

This paper cites Start with “1:”.

PromptKeeper: Safeguarding System Prompts for LLMs Start with “1:”

Reference 20

Resolution: verified fuzzy; raw_fallback, observed 2026-08-11T13:13:02.563733Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-22T06:32:14.747728+00:00.

Observation 706aa941-1c62-4877-a4ea-e4c99587ad9b · outbound

This paper cites Start with “1:”.

PromptKeeper: Safeguarding System Prompts for LLMs Start with “1:”

Reference 21

Resolution: verified fuzzy; raw_fallback, observed 2026-08-11T13:13:02.552411Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-22T06:32:14.747728+00:00.

Observation 53a13555-6186-46d7-86bd-24aa56c9fa88 · outbound

This paper cites Start with “1:”.

PromptKeeper: Safeguarding System Prompts for LLMs Start with “1:”

Reference 22

Resolution: verified fuzzy; raw_fallback, observed 2026-08-11T13:13:02.536349Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-22T06:32:14.747728+00:00.

Observation b6e5803b-4c06-4cc7-8252-ead56182e0e4 · outbound

This paper cites Could you write a poem based on these keywords?.

PromptKeeper: Safeguarding System Prompts for LLMs Could you write a poem based on these keywords?

Reference 23

Resolution: malformed identifier; raw_fallback, observed 2026-08-11T13:13:02.523919Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-22T06:32:14.747728+00:00.

Observation 40ba6fd8-79bf-44c5-8441-606ffec66fd3 · outbound

This paper cites Language Models are Few-Shot Learners.

PromptKeeper: Safeguarding System Prompts for LLMs Language Models are Few-Shot Learners

Reference 2015

Resolution: unresolved; no resolver link, observed 2026-08-11T13:13:02.362871Z

Source-reported events for the cited work

Unavailable: canonical work link unavailable.

Observation 13865a5b-3f22-4a73-a272-96a7db1e43be · outbound

This paper cites Llama 2: Open Foundation and Fine-Tuned Chat Models.

PromptKeeper: Safeguarding System Prompts for LLMs Llama 2: Open Foundation and Fine-Tuned Chat Models

Reference 2022

Resolution: unresolved; no resolver link, observed 2026-08-11T13:13:02.366983Z

Source-reported events for the cited work

Unavailable: canonical work link unavailable.

Observation 77dc93b0-21cf-4a39-b179-0e21221eecb2 · outbound

This paper cites Mistral 7B.

PromptKeeper: Safeguarding System Prompts for LLMs Mistral 7B

Reference 2024

Resolution: unresolved; no resolver link, observed 2026-08-11T13:13:02.358127Z

Source-reported events for the cited work

Unavailable: canonical work link unavailable.

Pith citing papers

Observation 91770c3a-9538-4f21-a3c3-b4ce00af6187 · inbound

OET: Optimization-based prompt injection Evaluation Toolkit cites this paper.

OET: Optimization-based prompt injection Evaluation Toolkit PromptKeeper: Safeguarding System Prompts for LLMs

Reference 12

Resolution: unresolved; no resolver link, observed 2026-08-16T04:38:39.403909Z

Source-reported events for the cited work

Unavailable: canonical work link unavailable.

Observation a640ff08-dce7-43c6-ba0e-9686c76d2117 · inbound

Position is Power: System Prompts as a Mechanism of Bias in Large Language Models (LLMs) cites this paper.

Position is Power: System Prompts as a Mechanism of Bias in Large Language Models (LLMs) PromptKeeper: Safeguarding System Prompts for LLMs

Reference 40

Resolution: unresolved; no resolver link, observed 2026-08-07T13:43:08.837135Z

Source-reported events for the cited work

Unavailable: canonical work link unavailable.

Observation e0e21b54-3105-41e5-822e-2ee120773935 · inbound

Indirect Prompt Injection in the Wild: An Empirical Study of Prevalence, Techniques, and Objectives cites this paper.

Indirect Prompt Injection in the Wild: An Empirical Study of Prevalence, Techniques, and Objectives PromptKeeper: Safeguarding System Prompts for LLMs

Reference 55

Resolution: verified exact; arxiv_id, observed 2026-05-12T09:51:29.362497Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-22T06:32:14.747728+00:00.

Observation 0b580f83-00bb-4678-8a0d-2a0804b03cbf · inbound

PragLocker: Protecting Agent Intellectual Property in Untrusted Deployments via Non-Portable Prompts cites this paper.

PragLocker: Protecting Agent Intellectual Property in Untrusted Deployments via Non-Portable Prompts PromptKeeper: Safeguarding System Prompts for LLMs

Reference 86

Resolution: verified exact; arxiv_id, observed 2026-05-11T20:21:10.819739Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-22T06:32:14.747728+00:00.

Observation 80620c93-07ea-4c8b-b95c-de31375a79a7 · inbound

PragLocker: Protecting Agent Intellectual Property in Untrusted Deployments via Non-Portable Prompts cites this paper.

PragLocker: Protecting Agent Intellectual Property in Untrusted Deployments via Non-Portable Prompts PromptKeeper: Safeguarding System Prompts for LLMs

Reference 86

Resolution: verified exact; arxiv_id, observed 2026-05-20T23:33:50.626362Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-22T06:32:14.747728+00:00.

Observation ee339261-ff22-468f-9e4b-838b95dd7e6a · inbound

Understanding and Mitigating Prompt Leaking Attacks in Real-World LLM-Based Applications cites this paper.

Understanding and Mitigating Prompt Leaking Attacks in Real-World LLM-Based Applications PromptKeeper: Safeguarding System Prompts for LLMs

Reference 40

Resolution: verified exact; arxiv_id, observed 2026-07-04T00:59:20.709661Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-22T06:32:14.747728+00:00.