Stratum
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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 | mining.set_difficulty | client.reconnect | client.add_peers | client.get_version | client.show_message | mining.get_hashrate | mining.get_temperature |
|---|---|---|---|---|---|---|---|
| Stratum proxy | Yes | Yes | No | Yes | Yes | No | No |
| cgminer (>=2.8.4) | Yes | Yes | No | Yes | No | No | No |
| poclbm (>=20121020) | Yes | No | No | Yes | No | No | No |
| Server | dynamic difficulty | Job frequency |
|---|---|---|
| Slush's pool | No | 30s |
| BtcGuild | Yes | 30s |