Ninomae Tsukumo
EN 日本語

Independent OSINT & public-record research

Evidence first.
Claims separated from conclusions.

I publish selected research on corporate, financial, governance, political-finance, and public-record questions under the Project Blackbird framework.

Published research GitHub

About

Ninomae Tsukumo

Ninomae Tsukumo is a pseudonym used as the publication and research identity for Project Blackbird.

I am an independent researcher focused on open-source intelligence, corporate and financial analysis, governance, transaction context, and public records.

Only research that has completed a publication review is listed here. Working files, unpublished investigations, private evidence, and sensitive material are not part of this public site.

Published research

JAPAN — Project Blackbird Open-source investigation complete Research cut-off: 21 Sep 2026

JAPAN — JP-03 — Henoko / Doshisha School-Trip Boat Capsizing

An evidence-first OSINT investigation into how a school peace-education program placed minors aboard small vessels off Henoko, what safety controls failed, and what the public record can establish about the 16 March 2026 fatal capsizing.

The final report finds a documented chain of deficient due diligence, weak risk governance, absent onboard school supervision, unresolved marine-operational responsibility, and day-of decisions that did not adequately respond to worsening risk. It separates institutional findings from unresolved technical and criminal questions, and now includes incident-sequence, warning-timeline, accountability, and evidence-gap maps.

Final report
English 日本語 View publication files →
JAPAN — Project Blackbird Published — 27 Sep 2026 Research cut-off: 17 Sep 2026

JAPAN — JP-02 — Takaichi Political-Funding Network

A public-record OSINT case study of political donations, support organisations, business/public-sector intersections, vendor relationships, and evidentiary limits in Japan.

The final report maps multiple partially connected donor and support clusters, preserves negative findings and unresolved primary-source questions, and distinguishes documented relationships from allegations. It does not establish a unified donor network, quid pro quo, circular funding, or criminal liability.

Evidence visuals show the overall case structure, donor-side map, Nara support-organisation flow, Ubusuna / Local 10,000 public-benefit chain, and the Sōkōkai / Kameoka / Veanas / PoliLab branch.

Final report
English 日本語 View publication files → Permanent DOI: 10.5281/zenodo.22990997 →
JAPAN — Project Blackbird Published Research cut-off: 5 Sep 2026

JAPAN — JP-01 — The Mizuho Conspiracy File

A privacy-minimised OSINT case study of information-control risk, transaction governance, and the 2026 SESC investigation of Mizuho Securities.

The public edition separates verified facts from reported information, analytical judgments, hypotheses, negative findings, and unknowns. Person-level detail is minimised where identity is unnecessary to the institutional analysis.

Final report
English 日本語 View repository → Permanent DOI: 10.5281/zenodo.22987567 →

Method

Project Blackbird evidence model

Verified FactDirectly supported by strong primary documentation.
Reported InformationReported by a source but not independently established by a primary record.
Analytical JudgmentInterpretation based on established facts.
HypothesisA possible explanation that remains unproven.
Negative FindingA defined public-source search did not establish the proposed relationship.
UnknownAvailable evidence is insufficient to determine the answer.

Core rule: source ≠ claim ≠ fact ≠ conclusion.

Documented association does not imply misconduct. Absence of public evidence is not treated as evidence of concealment. Timing alone is not treated as proof of causation.

Contact

Research identity

This site is the public publication index for Ninomae Tsukumo, a pseudonymous research identity. GitHub is the canonical public source for published research files and revision history.

Research inquiries, including commissioned or paid research, may be sent by email.

github.com/ninomaetsukumo →
ninomae.tsukumo@proton.me →