> Is it fair to say that the chip contains the content of the travel document at the time it was issued Yes to expiration date and number (although afaik it do

> Is it fair to say that the chip contains the content of the travel document at the time it was issued Yes to expiration date and number (although afaik it does vary because each country may include or exclude certain information), but in general no, because even if you have a visa issued to you at the time of a passport being issued (like at the time of a passport renewal), the chip will not have that information. The chip information is basically just proving who you are, but doesn’t have any info on where you are permitted to go (other than permissions implied by your characteristics like nationality). That information is stored elsewhere, like in the passport pages or a country’s internal immigration records.