C.E.R.T.O.
C.E.R.T.O.
Comments on posts and videos, profile, timeline posts and friend list — with each person's identifier and picture.
No option to tick, no separate module to buy, no extra cost: it is the Web pages module, at its own rate.
On a Facebook post the defamation or the threat is often not in the content: it is in the comments below. And the comments are exactly what a screenshot cannot take, because the platform shows a few at a time and hides the rest behind a “view more comments”.
Facebook exposes no public address comparable to Instagram's: everything goes through a single internal channel, over POST, with session parameters. C.E.R.T.O. follows it there, and when what it collects does not match what the page shows it records both numbers and the difference, instead of picking the more convenient one.
Only what the program actually does: every item matches a collection that exists in the code and has been tested on real acquisitions.
On posts and videos, with text, author, date and counters. The frames captured during extraction end up in the bundle as a gallery, with a PDF carrying their hashes.
Profile identity — identifier, name, picture, stable address — taken from the payload the page already carries.
The text of each post, when it was published and the stable address where it lives. The bundle used to carry the page's “full text”: an undifferentiated block of twenty-six thousand characters containing nothing useful.
Name, numeric identifier and picture for each person, following the list page after page to the end. Measured in the field on a profile with 692 friends.
Recognition looks at the domain and the shape of the address. If it recognises nothing, it stays an ordinary web page acquisition: nothing is lost.
facebook.com/…/posts/<id>post with its commentsfacebook.com/watch/?v=<id>video with its commentsfb.watch/<codice>shortened video linkfacebook.com/<profilo>profile, timeline and friendsFolders inside the BagIt bundle, alongside everything else from the web acquisition: WACZ archive, screenshots, network traffic, certificates, report.
social/facebook/raw-api/The bundle's interactive.html dashboard presents them in tables with search and sorting, and works offline, on a double click, even on a computer without C.E.R.T.O. installed.
Where collection goes through a service, every response is preserved verbatim with its provenance envelope: queried address, method, status, moment of receipt. Anyone contesting the data can go back to the source rather than trusting our table.
A BagIt 1.0 bundle with an Ed25519 signature, a double RFC 3161 timestamp and a CASE/UCO description, verifiable by anyone, offline, with the included verifiers.
The document reports how many items the platform announces, how many were collected and why collection stopped. A stated limit is worth more than an asserted completeness.
The questions we are asked most often about this platform.
All inside the Web pages module, all recognised from the address, all at the same rate.
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