The following picture shows
T So that not only the timestamp is added but also the revocation informationthat this actually happened In the upper left is the original recognized seal with no time stamp and no embedded revocation information as indicated by the Adobe Reader message in red box that longterm verification is not allowed and that it will expire after 222 which is the end of the regular validity of the electronic seal certificate.
On the right is a preserved copy with an Italian time stamp which is based on Indonesia WhatsApp Number Data a certificate valid until 2 see above And with inserted revocation information for both the seal see upper green box and the time stamp see lower green box In the lower left part there is a detailed view of the revocation information inserted in the sealAuthor Jiří PeterkaWith this elevation to the level corresponding to LT the necessary revocation information can be available for verification for as long as the validity of the timestamp can be verified ie until 2 Although after 222 it may not be available onlineBut lets remember again that even the service for preservationor .
https://lh7-us.googleusercontent.com/-tfNwQgPm3h5LfHYNTqFEE4GDzUEF4aQL9ZjsasmyyrZkgFzn9hZ23TCvPkcW6EbTVvTACZT73KDDu58FWnZFKfMWKxvCFow37h2ibzTLHPDPLomTTF7rALgfxiTe-F2nNjjgqEtNKPvcCU5LXCjTcE
The promotion of the signature or seal that we show here is itself dependent on the availability of revocation information So if we submit to her for promotion to the LT or LTA level such a signature or seal for which the relevant revocation information is not yet inserted we should do so at a time when this revocation information is still available in a normal and standard way That is even before the expiration end of the regular period of validity of the certificate on which the relevant signature or seal is based .
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