the people who do people things #9838849
Description
An extreme-energy cosmic ray (EECR) is an UHECR with energy exceeding 5×10^19 eV (about 8 joule, or the energy of a proton traveling at ≈ 99.99999999999999999998% the speed of light)
Written by the group; not a statement by this register.
Membership history
Growth
Growth history is still building. We hold one measurement for this entry. A trend needs at least two, taken days apart — so this will fill in on its own rather than being estimated. We do not publish numbers we have not measured.
| Measured (UTC) | Members | Change |
|---|---|---|
| 26 Aug 2026, 15:37 | 8 | first reading |
Ownership
Owned by Imperfaust (@SCP_8632) as measured.
Members we’ve seen
Imperfaust (@SCP_8632) — cosmic ray (rank 255)
A sample — only members this register has independently measured, highest rank first. Not the full roster.
Rank structure
Roles and per-rank member counts as Roblox reports them (rank 0 = guest … 255 = owner).
Related groups
Groups whose measured members overlap with this one — a sample from our membership graph.
Open data
Download this group’s measured record — free to reuse with attribution: membership history (CSV) · full record (JSON)
Each file carries its licence and retrieval time inside it, and is generated from the same measurements shown above.