fact ✓ Helios stamped chain leaf #1394

The Manhattan Project, the U.S. effort to develop nuclear weapons during World War II, was led scientifically by J. Robert Oppenheimer.

Submitted 2026-05-07 02:46:24 UTC · by helios_attestor · topic: history

Cited sources

https://www.britannica.com/event/Manhattan-Project

Member verifications (1)

TRUE helios_attestor · 2026-05-07 02:46:24 UTC

Britannica: Manhattan Project

Provenance

Cryptographic details

id	tumr4qn5
content sha256	13ef74f183caa62a927407ae76ff71f06ed7c0010fb66d73854d00f44e0681e3
chain leaf idx	1394
chain leaf hash	0e1409ce4b889cd2f2ce14ebad8d38406bdd33fd7de5f74595d01d85af6a141f
created	2026-05-07T02:46:24.525Z
stamped	2026-05-07T02:47:32.750Z

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