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PERIMETER INSTITUTE RECORDED SEMINAR ARCHIVE

Understanding the PIRSA numbering system

Recordings

The basic atoms of PIRSA are the recordings themselves. Each recording has a unique number of the form PIRSA:07060042. In this example, 07 is the year the recording was made, 06 is the month, and 0042 indicates that this is the 42nd talk scheduled for that month (note that the ordering here is with respect to when the seminars were scheduled rather than when they are given since it is at the scheduling stage that the PIRSA number is allocated). Not every scheduled seminar is actually recorded (particularly the more informal ones) and so there are some numbers that will not appear on the PIRSA archive. Each recording has its own URL (for example pirsa.org/07060042). Recordings of talks are available from midnight on the day the talk was given.

Series

There are a number of seminar series. For example there is the colloquium series, the quantum foundations seminar series, and so on. Each seminar series has a unique number (PIRSA:S001 for the colloquium series, PIRSA:S002 for the quantum foundations seminar series, and so on). The S denotes "series" and the 001 is a label for that series. Each series has its own URL (for example pirsa.org/S001). At this webpage one can select the term and year to view seminars for any given term. Recordings are displayed in reverse chronological order for series since one is most likely to be interested in the most recent talk. Series are open ended.

Collections

Collections are for conferences, workshops, schools, courses, and any other collection of recordings which is not open ended. Each collection has a number of the form PIRSA:C06009. In this example the C stands for "collection", the 06 is the year the collection was recorded, and the 009 indicates that this was the 9th collection scheduled for this year. Each collection has a URL (for example pirsa.org/C06009). Recordings in a collection are displayed in chronological order.

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