Stratum
Stratum is a proposal for an open source client-server "Overlay" protocol that enables thin clients (currently used by Electrum client). Stratum protocol is also used for pooled mining as a replacement for obsolete getwork protocol. Full mining service specification is available on Slush's pool website. See also on the forums and the official site.
Tables showing miner/server support for Stratum mining protocol:
| Miner | set diff | reconnect | add peers | get ver | show msg | get hashrate | get temp |
|---|---|---|---|---|---|---|---|
| Stratum proxy | Yes | Yes | No | Yes | Yes | No | No |
| BFGMiner (>=2.9.0) | Yes | Yes | No | Yes | No | No | No |
| cgminer (>=2.8.4) | Yes | Yes | No | Yes | No | No | No |
| poclbm (>=20121020) | Yes | Yes | No | Yes | No | No | No |
| Server | get transactions | dynamic difficulty | job frequency | resume |
|---|---|---|---|---|
| Slush's pool | Yes | No | 30s | No |
| BtcGuild | No | Yes | 30s | No |
| Eloipool | Yes | Yes | 55s | Yes |
| HHTT | No | No (User selected difficulty) | 30s |