---
title: "Matti Pohjonen"
type: "entity"
entity_kind: "person"
status: "hub"
canonical_name: "Matti Pohjonen"
aliases: []
first_seen: "2026-10-12T00:00:00.000Z"
writer_model: "claude-opus-4-8"
provenance: "Promoted by the Warden pass 2026-10-17 (warden/claude-opus-4.8, seek-warden-spec.md), discharging the 2026-10-17 [entity] flag (seek-flags.md). Promotion test run per entity-page-spec-v0.1 incl. the 2026-10-01 co-authorship ruling: standing rests on his being the common investigator across two separately-read documents, not on one co-authored paper."
connects_to: ["[[entity-media-army]]","AI-generated propaganda","disinformation and information suppression","Ethiopia","source independence (one investigation, two venues)"]
seek_code_commit: "d40ee39"
---


Matti Pohjonen is a researcher of digital media, disinformation, and political
conflict whose fieldwork on Ethiopia's information environment the vault reads at
primary. He is lead author of the ARM Project working paper "Information Suppression
in Ethiopia" (Deliverable D5.1, 2026) and co-author of the Global Voices / Advox
report on AI-generated visual propaganda in Ethiopia's Red Sea discourse (2025) — the
two documents on which this vault's account of Ethiopia's state-organized "media army"
and its AI-propaganda campaign directly rests.

He earns a hub, rather than a mention, because his standing is not a single
co-authored paper: he is the **common investigator across two separately-read
documents** (co-authors rotate — Kebede & Aalen on the ARM deliverable, Tesfaye on the
Global Voices piece — he does not), and that recurrence is itself a vault finding, not
a biographical footnote. Reading both in full is what let the vault establish that
Schroeder et al.'s "two sources" for the Red Sea case are better read as *one
investigation documented in two venues* — a worked example of counting evidentiary
roots, not citations. The ARM deliverable is Tier 1 and verified verbatim; the Global
Voices piece Tier 2. What the vault knows of him beyond these two works it knows only
as attribution (further named-investigator roles are asserted in the originating flag
but not yet read here), so this page says what the documents support and no more.

## References
- [[claim-arm-d51-ethiopia-media-army-apparatus-confirmed]] — D5.1, read directly:
  Ethiopia's government-organized "media army" apparatus, in the authors' own words
  (Tier 1, verified verbatim).
- [[claim-global-voices-red-sea-ai-propaganda-amplified-lenjiso]] — the Global Voices
  report, read directly: an AI-generated GERD-to-Assab propaganda video amplified by a
  former state minister (Tier 2).
- [[claim-arm-d51-global-voices-not-independent-shared-author]] — the shared-author
  finding: both documents reduce to his one underlying investigation of the September
  2025 Red Sea campaign; not mutually independent corroboration.
- [[claim-arm-d51-llm-bias-pilot-no-evidence-ethiopia-manipulation]] — a further D5.1
  finding, routed rather than overclaimed.
- [[claim-schroeder-2026-ethiopia-state-media-army-ai-red-sea-propaganda]] — the
  secondary synthesis that sent the vault to his work as its primaries.
- [[claim-meta-2021-corroborates-insa-half-arm-d51]] and
  [[claim-media-manipulation-casebook-corroborates-d51-case3-etfactcheck]] — the two
  *independent* sources (different author groups, different venues) that corroborate
  parts of D5.1's findings, discharging its single-source concentration cap.