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Library/Moment/Philae’s comet landing/Certificate

Spread Certificate · No. HIS-01054

This certifies how far it spread

Philae’s comet landing

European Space Agency ·November 2014 ·seeded onOpen webthenX

Spread Score

10

Niche

Verified independently

Verified

same day

Seed to milestone, Nov 12 ’14 to Nov 12 ’14

Verified

2 platforms

Started on Open web

Claimed, not audited

Claimed

1.4M

Rosetta blog views on landing day; ESA report

Per ESA communications team / CAPjournal

Claimed

287K

Philae account new followers on landing day; ESA report

Per ESA communications team / CAPjournal

Issued Oct 17, 2026 · Spread Score v1.2 provisional · 10 sources

howitspread.com/id/HIS-01054

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