21 BTCFoundry USA
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In plain words
Foundry USA is a bitcoin mining pool paying with FPPS. US company (Foundry Digital LLC).
Terms and notes
US company (Foundry Digital LLC). SOC 2 Type 2 and SOC 1 Type 2. Payouts through a payment processor with address whitelisting. Aimed at industrial miners.
Servers: Servers and relays worldwide (exact list not public)
Not confirmed on an official page as of 2026-10-10: minimum payout, Lightning payouts, Stratum V2 support, worker naming.
See also
- Mining poolA mining pool combines the hashrate of many miners so they get small, regular payouts instead of waiting years for a whole block.
- Pool payout schemes (PPS, PPLNS, FPPS, TIDES)A payout scheme is how a mining pool shares block rewards among its miners. The main question is who carries the luck: the pool (steady pay, higher fee) or the miners (variable pay, lower fee).
- Stratum V2Stratum V2 is the newer protocol between miners and pools. It encrypts the connection, uses compact binary messages and, optionally, lets the miner rather than the pool choose which transactions go into a block.
- HashrateHashrate is how many guesses per second all Bitcoin miners make together. More hashrate means more energy protecting the network.
References
- foundrydigital.com foundrydigital.com
- pool-faq.foundrydigital.com pool-faq.foundrydigital.com