1914 1915 looks like it is blocking and reading 1.6MaB chunks of data at once. I can hack it to read only 4 bytes. [user@ log]$ echo 'Hello, Universe!' | python3 capture_stdin.py warning: this script hopefully works but drops chunks due to waiting on network and not buffering input Capturing ... {"ditem": ["p-hxoXSPCy1DM8zJWg4GUtctZxYZDheLPhEFqMsOInY"], "min_block": [1056139, "UOK0KqI17Lsg37QwPUBmSLodqcirmZ1KuaanCeTksrDLmtiS4xWPLRy6ErGOP7C2"], "api_block": 1056539} {"ditem": ["T7UNzpyArtyZU40dS9Z4zJ0gY1cTmyWLtDvrmWIls00"], "min_block": [1056139, "UOK0KqI17Lsg37QwPUBmSLodqcirmZ1KuaanCeTksrDLmtiS4xWPLRy6ErGOP7C2"], "api_block": 1056539} {"ditem": ["d_kmualjoqspfSQxyZPXaNRMn-jDDlhQNZuEjOGA0Jw"], "min_block": [1056139, "UOK0KqI17Lsg37QwPUBmSLodqcirmZ1KuaanCeTksrDLmtiS4xWPLRy6ErGOP7C2"], "api_block": 1056539} {"ditem": ["9Y4GsFXDP9nY2DwqtHGH0i4oLLjZQIoHLcNek0qKuf8"], "min_block": [1056139, "UOK0KqI17Lsg37QwPUBmSLodqcirmZ1KuaanCeTksrDLmtiS4xWPLRy6ErGOP7C2"], "api_block": 1056539} {"ditem": ["2vVoAxb298bO9j8kJ4PpksaZAYKFnBRSzn_UOVZekMQ"], "min_block": [1056139, "UOK0KqI17Lsg37QwPUBmSLodqcirmZ1KuaanCeTksrDLmtiS4xWPLRy6ErGOP7C2"], "api_block": 1056539} The last output data is the root node. I've started the download and it's caching blocks to try to find the data. Presently it has to be mined for it to find it. [user@ log]$ echo '{"ditem": ["2vVoAxb298bO9j8kJ4PpksaZAYKFnBRSzn_UOVZekMQ"], "min_block": [1056139, "UOK0KqI17Lsg37QwPUBmSLodqcirmZ1KuaanCeTksrDLmtiS4xWPLRy6ErGOP7C2"], "api_block": 1056539}' > hellouniverse.json [user@ log]$ python3 download.py hellouniverse.json Caching 1056140: 100%|████████████████████████████████████████| 86/86 [00:11<00:00, 7.66tx/s] But, I forgot to update flat_tree. So this isn't actually testing it. 1918 [user@ log]$ pip3 install --upgrade git+https://github.com/xloem/flat_tree@main [user@ log]$ echo '{"ditem": ["9fHmJ9utcCSAYPVPGUau98J7fl1i-lI9E8TvvQsx6CA"], "min_block": [1056141, "PvRhlqyLRwsUjkFLL19PYc872olmvDXbgfizaWLzMasIce4tnsg3JILUOuVHFU7U"], "api_block": 1056541}' > hellouniverse.json It ran with the new flat_tree ! To give it a little time to consider being mined, I'll ensure the script actually _uses_ flat_tree and doesn't craft the structure by hand. from flat_tree import flat_tree indices = flat_tree(3) #append_indices(3) It looks like it's working.