🕸️Powered by Custom Graph RAG & Grounded Archival Retrieval

Unearth Truth Anchored

Driven by a custom-built Graph RAG engine over trustworthy historian publications. Traversing entity networks, mapping documented node contentions, and eliminating AI speculation.

Istifsar Agoncillo Engine
“Did Jose Rizal sign a retraction document before execution?”
Synthesized from 4 Historian Publications (Guerrero, Schumacher, Coates, Zaide)
Zero Speculation

Historians remain divided into two major scholarly traditions regarding Jose Rizal’s alleged retraction document discovered in 1935 by Fr. Manuel Garcia. Scholars such asFr. John N. Schumacher, S.J. [Ref: 1999]andLeon Ma. Guerrero [Ref: 1963]conclude that the physical manuscript is authentic based on forensic handwriting analysis, while arguing it reflected a return to personal faith rather than political surrender. Conversely, historians likeDr. Nicolas Zafraand critical analysts highlight textual discrepancies between the 1896 newspaper transcripts and the 1935 rediscovered manuscript.

Agoncillo Engine Guarantee: This output contains no generated speculation. All statements are mapped directly to verified published works by Philippine historians.
Want to dive deeper into documented Philippine historiography?Explore All Debates & Documents
100%
Historian Literature Grounding
Zero unverified AI extrapolation
Dual-Node
Contention Mapping
Visualizing documented debate splits
Curated Vault
Primary & Secondary Texts
Indexed writings of trusted scholars
Research Bounties
Gap Identification
Readers & historians crowd-funding sources
Platform Features

How Istifsar AI Transforms Historical Research

Engineered to eliminate hallucination, map historiographical debates, and bridge history enthusiasts with verified scholar literature.

Custom Graph-Guided Archival Retrieval

The Agoncillo Graph RAG Engine

Custom Graph RAG Engine — Traversing entity networks and historical relationships to retrieve multi-hop context that traditional search misses. Every answer links directly to verified source citations.

Custom Graph-guided entity traversal
Page-level citation anchoring
Multi-hop relationship reasoning
Test Agoncillo Engine
Mapping Historical Debates

Nodes of Contention Explorer

History is rarely monolithic. Istifsar maps documented conflicting perspectives side-by-side, displaying evidence weights and key historian positions without forcing false consensus.

Side-by-side argument analysis
Documented evidence weighting
Historical context timeline
Explore Contention Graph
Crowdsourced Scholarly Inquiry

Research Bounties & Gaps

When readers encounter undocumented historical gaps or missing primary sources, they can post research requests and fund bounties for verified historians to investigate and catalog.

Community research request board
Historical gap categorization
Historian bounty fulfillment
Browse Research Requests
Core Engine Architecture

How Custom Graph RAG Powers Istifsar AI

Combining vector similarity search, full-text keyword indexing, and knowledge graph traversal for uncompromised historical accuracy.

01
Ingestion & Extraction

Entity & Relationship Extraction

As manuscripts are ingested, Gemini AI parses full text to extract entities (scholars, events, dates, locations, claims) and directed relationships.

Extracted Graph Nodes
HISTORIAN: T. AgoncilloEVENT: TejerosCLAIM: Election Disputes
Entities:HISTORIAN, EVENT, CLAIM, DATE, LOCATION
Edges:ARGUES, CONTRADICTS, CITES, SUPPORTS
Deduplication:3072-dim embedding vector matching
02
Graph Search Engine

Recursive Graph Traversal

Given a user inquiry, graph_search() traverses relationship edges up to 3 hops away, uncovering multi-hop context and Nodes of Contention across distinct documents.

Graph Traversal Edge
AgoncilloCONTRADICTSAlvarez
Traversal:Recursive CTE graph traversal in PostgreSQL
Contention:Surfaces conflicting scholar perspectives
Depth:Multi-hop relationship link resolution
03
Grounded Retrieval

Tri-Signal RRF Synthesis

Merges vector search, full-text keywords, and graph proximity using Reciprocal Rank Fusion (RRF) to stream answers strictly backed by cited sources.

Grounded Citation Stream
"Agoncillo argues that..."[Agoncillo 1956, p. 112]
RRF Fusion:pgvector + FTS + Graph Distance
Constraint:Agoncillo zero-hallucination gate
Citations:Page-level split-pane source chips

The Agoncillo Constraint Enforced at Every Layer

Graph RAG is strictly gated at 0.65 similarity. If no verified document or entity connection exists, the AI returns "No document, no history" and logs the gap.

Test Graph Retrieval

Rigorous Epistemic Standards

History is not built on speculative AI generation, but on verified archival records. We enforce these structural principles to ground every insight in source literature.

Dual Ecosystem

Designed for Scholars and Curious Minds

Whether you are seeking truth behind historical myths or curating rare archival documents, Istifsar AI connects you to verified historian literature.

History Readers & Enthusiasts

Explore & Discover

Uncover facts grounded in historian publications. Say goodbye to hallucinated internet rumors and explore verified historiographical debates.

Query Agoncillo AI Engine

Get synthesized answers anchored strictly in verified historian literature.

Interactive Contention Graphs

Compare competing historical perspectives side-by-side with evidence weights.

Submit Research Requests

Flag missing historical topics or offer bounties for unindexed sources.

Curate Personal Reading Lists

Bookmark historical writings and organize academic research topics.

Start Exploring Archives

Verified Historians & Scholars

Catalog & Contribute

Preserve historical truth. Upload primary document transcriptions, expand the digital vault, and solve reader research requests.

Upload Historical Works & Documents

Index verified writings into the Agoncillo citation database.

Fulfill Research Bounties

Address crowd-sourced historical gap requests from researchers and readers.

Verified Scholar Accreditation

Gain verified historian status via admin verification and contribution badges.

Annotate Nodes of Contention

Manage documented evidence weights and historical controversy nodes.

Apply as Verified Historian

The Digital Collections

Capabilities & Limits

In the realm of historical research, understanding the limitations of a tool is just as important as knowing its strengths. Istifsar AI is designed to assist, not replace, the rigorous work of historical analysis.

What Istifsar AI Is

Our Capabilities

Navigates a strictly vetted database of scholarly writings to present the prevailing historical consensus.

What Istifsar AI Isn't

Our Limitations

Does not conduct original research. It cannot interpret raw archival documents or formulate entirely new historical theories.

History is not just preserved; it is understood.

Access to the Istifsar engine is by Admin Verification. We invite historians to help us curate the future of our shared past.