PubAnnotation will undergo a system maintenance from Dec 2nd through 4th, 2022, and access to PubAnnotation will be restricted. We are very sorry for any inconvenience. Please understand that it is for provision of a better service.

PubAnnotation will undergo a system maintenance from Dec 2nd through 4th, 2022, and access to PubAnnotation will be restricted. We are very sorry for any inconvenience. Please understand that it is for provision of a better service.
PubAnnotation is now under migration to a new server. Some features may be unstable or not available, for a while. WE are sorry for inconvenience during migration.
The LitCovid dataset, for annotation, is available at PubAnnotation. Please see the <a href="http://pubannotation.org/collections/LitCovid">LitCovid</a> collection.
The CORD-19 dataset, for annotation, is available at PubAnnotation. Please see the <a href="http://pubannotation.org/collections/CORD-19">CORD-19</a> collection.
The system was unavailable for about 24 hours on August 25, 2020, but now it is working fine. We are very sorry for any inconvenience caused by the problem.
There will be a planned system maintenance from the 27th Nov. It may take a couple of days, during which, access to PubAnnotation will be restricted. We are very sorry for inconvenience. Please understand that it is for provision of a better service.
The HTTP connection problem which PubAnnotation suffered from for the a few days is now fixed. We are very sorry for any inconvenience you might be experiencing.
PubAnnotation will undergo a system maintenance from Nov 12nd, 2021. It may take a couple of days, and access to PubAnnotation will be restricted. We are very sorry for any inconvenience. Please understand that it is for provision of a better service.
There will be a planned system maintenance on 13th March (JST). It may take a day, during which, access to PubAnnotation will be restricted. We are very sorry for inconvenience. Please understand that it is for provision of a better service.
The system was unavailable for about 3 hours on Feb 25, 2020. We are very sorry for any inconvenience caused by the problem. We are analyzing the reason not to repeat the same problem.
There will be a system maintenance from 14th through 16th February, 2020 (JST). During it, access to PubAnnotation will be restricted. We are very sorry for any inconvenience caused by it. Please understand that it is to provide you with a better service.
There will be a system maintenance on 19th January (JST). During the maintenance, access to PubAnnotation will be restricted. We are very sorry for any inconvenience caused by it. Please understand that it is to provide you with a better service.
There will be a planned system maintenance on 28th July (JST). During the maintenance, access to PubAnnotation will be restricted. We are very sorry for any inconvenience caused by it. Please understand that it is to provide you with a better service.
Elasticsearch engine is under migration, during which some parts of the service will be restricted, e.g., full text search, adding documents to projects. We are sorry for the inconvenience.
There will be a planned system maintenance on 7th July (JST). During the maintenance, access to PubAnnotation will be restricted. We are very sorry for any inconvenience caused by it. Please understand that it is to provide a better service.
There will be a planned system maintenance on 30th June (JST). During the maintenance, access to PubAnnotation will be restricted. We are very sorry for any inconvenience caused by it. Please understand that it is to provide a better service.
There will be a planned system maintenance from 23rd through 24th February (JST). During the period, access to PubAnnotation will be restricted. We are very sorry for inconvenience.
There will be a planned system maintenance from 9th through 11th March (JST). During the maintenance, access to PubAnnotation will be restricted. We are very sorry for inconvenience.
There will be a planned system maintenance from 03:30 through 04:30 on 13th August (JST). During the maintenance, access to PubAnnotation will be restricted. We are sorry for inconvenience.
Due to an accidental problem in the network facility, the service was unavailable for about 30 hours. The problem is now fixed. We are very sorry for the trouble you may have experienced due to the problem.