What is the meaning of this archive log named based on the parameters? 11G version

Hi.I want to know what is the meaning of this name of the archive logs based on the parameters:
I know that the %s is the sequence but this number 656783391 will change?  what is its meaning?

log_archive_format=arch_invdbprd%t_%s_%r.arc

Archive log name:  


arch_invdbprd1_791_656783391.arc
arch_invdbprd1_792_656783391.arc
arch_invdbprd1_793_656783391.arc
arch_invdbprd1_794_656783391.arc
arch_invdbprd1_795_656783391.arc
arch_invdbprd1_796_656783391.arc
arch_invdbprd1_797_656783391.arc
arch_invdbprd1_798_656783391.arc
arch_invdbprd1_799_656783391.arc
arch_invdbprd1_800_656783391.arc
arch_invdbprd1_801_656783391.arc
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LindaCAsked:
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DavidSenior Oracle Database AdministratorCommented:

Optionally, set the LOG_ARCHIVE_FORMAT initialization parameter, using %t to include the thread number as part of the file name, %s to include the log sequence number, and %r to include the resetlogs ID (a timestamp value represented in ub4). Use capital letters (%T, %S, and %R) to pad the file name to the left with zeroes.

Note:If the COMPATIBLE initialization parameter is set to 10.0 or higher, the database requires the specification of resetlogs ID (%r) when you include the LOG_ARCHIVE_FORMAT parameter. The default for this parameter is operating system dependent. For example, this is the default format for UNIX:
LOG_ARCHIVE_FORMAT=%t_%s_%r.dbf
The incarnation of a database changes when you open it with the RESETLOGS option. Specifying %r causes the database to capture the resetlogs ID in the archive log file name, enabling you to more easily perform recovery from a backup of a previous database incarnation. See Oracle Database Backup and Recovery Advanced User's Guide for more information about this method of recovery.
Source: http://youngcow.net/doc/oracle10g/server.102/b14231/archredo.htm
 
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LindaCAuthor Commented:
I was able to modify the script to add the resetlog_id from the v$archived_log to move them to Tivoli when they are already "archived" combining the script with the v$log.
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