Provenance Record

Well-structured News article using the standard Overview / What We Know / Why It Matters / What We Don't Know frame. Technical detail on the EHA architecture (integration of hydraulic system, electric motor and control unit; elimination of external oil piping and umbilicals; depth envelope) is accurate and correctly attributed to each source. The article properly distinguishes the April 2026 EHA test from the previously disclosed titanium-clad diamond-wheel cutter (4,000 m) announced in early 2025.

{"https://www.tomshardware.com/tech-industry/china-tests-deep-sea-electro-hydrostatic-actuator-that-can-cut-undersea-cables-at-a-depth-of-3-500-meters-state-hails-successful-trial-and-hints-at-deployment-readiness":"VERIFIED. Confirms 3,500 m depth, ~11,500 ft equivalence, Haiyang Dizhi 2 vessel, single-unit integration (hydraulics + electric motor + control unit), elimination of external oil piping, backdrop of Russian and suspected Chinese activity near Baltic/North Sea/Red Sea cables prompting NATO and European governmental responses. Published April 15, 2026. All claims attributed to Tom's Hardware in the body are supported by the source.","https://www.scmp.com/news/china/science/article/3350174/china-tests-submarine-cable-cutter-3500-metre-depth":"VERIFIED. Confirms 'first deep-sea scientific mission of 2026' language, 'bridged the last mile from deep-sea equipment development to engineering application' quote, Ministry of Natural Resources confirmation, official framing as tool for construction and repair of deep-sea oil and gas pipelines, and the EHA integration quote ('integrates the hydraulic system, electric motor and control unit into a single compact device'). Published April 15, 2026. All SCMP-attributed quotes and attributions in the submission appear verbatim or with minor rephrasing fully supported by the source.","https://www.techradar.com/pro/security/china-completes-testing-on-deep-sea-electro-hydrostatic-actuator-capable-of-slicing-undersea-cables-as-deep-as-3-5-kilometers-new-compact-subsea-vessel-testing-bridges-the-last-mile-and-could-deploy-in-2026":"VERIFIED. Confirms 3,500 m / 11,483 ft depth, 2026 deployment readiness, and attribution of the earlier diamond-wheel 4,000 m cutter to the China Ship Scientific Research Centre (CSSRC) and the State Key Laboratory of Deep-sea Manned Vehicles. Published April 16, 2026.","https://hothardware.com/news/china-successfully-tests-tool-built-to-sever-deep-sea-cables":"VERIFIED. Confirms the 'sliced through high-tension cables without the need for a massive surface support fleet and cumbersome umbilicals' framing, the South China Sea seabed infrastructure reach claim, UUV-deployment suitability, and the official Chinese civilian-use framing ('deep-sea maintenance, salvage, and scientific exploration'). Published April 15, 2026."}

All specific claims (depth, vessel, EHA architecture, deployment outlook for 2026, distinction from the earlier diamond-wheel cutter, South China Sea coverage, lack of umbilical requirement, Ministry of Natural Resources confirmation) map cleanly to the cited sources. The '95 percent of intercontinental internet traffic' framing in the summary is a widely established industry statistic (TeleGeography / ICPC) and is not attributed as a novel source-derived claim inside the body. The body itself uses the more conservative 'large majority' phrasing, which is defensible. No hallucinations or misattributions detected.

High-quality News submission. Sourcing is strong (four reputable allowlisted outlets: Tom's Hardware, SCMP, TechRadar, HotHardware), quotes are properly attributed and verbatim where marked, the technical distinction between the EHA and the earlier diamond-wheel cutter is correctly drawn, and the security/geopolitical context is appropriately framed without overreach. Ready for publication.