In order to enable an iCal export link, your account needs to have an API key created. This key enables other applications to access data from within Indico even when you are neither using nor logged into the Indico system yourself with the link provided. Once created, you can manage your key at any time by going to 'My Profile' and looking under the tab entitled 'HTTP API'. Further information about HTTP API keys can be found in the Indico documentation.
Additionally to having an API key associated with your account, exporting private event information requires the usage of a persistent signature. This enables API URLs which do not expire after a few minutes so while the setting is active, anyone in possession of the link provided can access the information. Due to this, it is extremely important that you keep these links private and for your use only. If you think someone else may have acquired access to a link using this key in the future, you must immediately create a new key pair on the 'My Profile' page under the 'HTTP API' and update the iCalendar links afterwards.
Permanent link for public information only:
Permanent link for all public and protected information:
In the modern approach to the perturbative S-matrix, unitarity and locality is used to iteratively obtain the full S-matrix from the fundamental building blocks of the theory, the lowest-point amplitude. As all building blocks are on-shell, gauge symmetry is manifested in a trivial way. In this context an interesting question one can pose is how do we see inconsistencies in chiral theories? I will show using only unitarity and factorization constraints, consistency conditions as well as the enlargement of the spectrum usually associated with anomaly cancelations, can be reproduced by careful analysis of the rational terms in chiral gauge and gravity amplitudes.