Registration details can be found in the TLD reference chart.
For transfers in, the domain registrant needs to send an email to email@example.com with the following content:
I, the domain owner of exct.ly, hereby confirm that I wish to transfer the domain exct.ly to the account firstname.lastname@example.org.
This email must be sent from the domain owner's email address entered in the registry database.
For transfers out of OpenSRS, the domain registrant will send same email, except email@example.com would be replaced with the gaining registrar’s email.