Mason @heartlesscosmo #1576501125

18 April 2020

account created (per Roblox API)

5 Sept 2026, 16:28

last measured (UTC)

Username record

@heartlesscosmo — observed 5 September 2026

Roblox’s API lists prior usernames without dates; the dates above are when this register observed each name, which bounds — but is not — the change date.

Groups owned (as measured)

Land of The Lizards#10334458

Open data

Download this user’s observed record: username history (CSV) · record (JSON)

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Membership and rank as measured from this user’s public group list.