144 |
the primary replica signs *heartbeats*, tuples |
the primary replica signs *heartbeats*, tuples |
145 |
containing a document id, the hash of a version, |
containing a document id, the hash of a version, |
146 |
a timestamp and a serial number. |
a timestamp and a serial number. |
147 |
To obtain the most current heartbeat, one sends a request |
The most current heartbeat is obtained by sending a request |
148 |
to the primary replica [#consistencytime]_. |
to the primary replica [#consistencytime]_. |
149 |
OceanStore is unique among the versioned P2P systems |
OceanStore is unique among the versioned P2P systems |
150 |
in that it implements non-destructive updates, |
in that it implements non-destructive updates, |