Source isn't completely clear but rumors are that it's out of China. Obviously should be taken with a grain of salt, if it's real others should be coming
The linked Twitter post just rotated the original video from portrait to landscape. It looks like the Twitter account that posted the original video 4 hours ago (@VasutTomas0423) was created today and has only two posts. The first post just has the portrait video and some Czech text. Per Google Translate: "First time joining Searching for the source of this video. My fellow researcher said he received this video from another colleague on Telegram."
Someone then asks: "what channel?" and the OP responds (in English): "I asked. There may be a time difference between my friend and me."
So... about as sketchy and unattributed as can possibly be.
Edit to Add:
More perspective from another Twitter account (Malý vědec @malyvedec):
"That's a very strange account. It pretends to be Czech with a Czech author's name, but the text was definitely not written by a native speaker, but rather by a bot or someone with a bad translator."
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[ 4.2 ms ] story [ 23.0 ms ] threadSource isn't completely clear but rumors are that it's out of China. Obviously should be taken with a grain of salt, if it's real others should be coming
And the fact they are taking the Iris Alexandra account seriously…
Someone then asks: "what channel?" and the OP responds (in English): "I asked. There may be a time difference between my friend and me."
So... about as sketchy and unattributed as can possibly be.
Edit to Add:
More perspective from another Twitter account (Malý vědec @malyvedec): "That's a very strange account. It pretends to be Czech with a Czech author's name, but the text was definitely not written by a native speaker, but rather by a bot or someone with a bad translator."