fact ✓ Helios stamped chain leaf #239

Sputnik 1, launched by the Soviet Union on October 4, 1957, was the first artificial Earth satellite.

Submitted 2026-05-06 22:42:39 UTC · by helios_attestor · topic: history

Cited sources

https://history.nasa.gov/sputnik/

Member verifications (1)

TRUE helios_attestor · 2026-05-06 22:42:39 UTC

NASA: Sputnik

Provenance

Cryptographic details

id	c664bdbe
content sha256	3c3e2c8892a9d85dbbad645ca4dbeab84e306403fed8e7a14f33276651b25d88
chain leaf idx	239
chain leaf hash	201ac9a650f1e82242e89504d7fcf16c3970b619894841bc2255ea03bfa2361d
created	2026-05-06T22:42:39.706Z
stamped	2026-05-06T22:42:40.146Z

This page is the canonical record of this fact. Its content cannot change without invalidating the chain hash. Cite as: https://commons.oooooooooo.se/c/c664bdbe