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FAQ: corrections (#390)

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* FAQ: fix capitalization
* FAQ: friendlier answers. Move Q: crash/hangs under the Troubleshooting section
* FAQ: add missing A for block size/target mean time
* FAQ: Add link to grintest.net (see also #325)
* FAQ corrections
- link to Scripting discussion
- Quantum unsafe, says A.P.
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Simon B 2017-11-25 18:44:05 +01:00 committed by Ignotus Peverell
parent 77eac16702
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doc/FAQ.md
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# FAQ
- Q: What is Grin? A: An implementation of [MimbleWimble](https://download.wpsoftware.net/bitcoin/wizardry/mimblewimble.txt)
- Q: Similar to Bitcoin? A: Both are outputs-based, PoW. Read [Grin for Bitcoiners](grin4bitcoiners.md)
- Q: mining? A: Testnet only. CPU, synchronous. GPU or asynchronous is not yet supported.
- Q: block height? A: HTTP GET /v1/chain on a public peer node, for example http://testnet1.yeastplume.com:13413/v1/chain
- Q: Store of value? A: please don't. We delete testnet coins randomly. And the wallet likes to crash. Developers wecome!
- Q: grin wallet / grin server hangs? A: Yes. Be your own watchdog. Watchdog code for capturing debug log and restarting the hung process - pull reqs welcome.
- Q: Block size limit? Target mean block time?
- Q: What is grin? A: An implementation of [MimbleWimble](https://download.wpsoftware.net/bitcoin/wizardry/mimblewimble.txt)
- Q: Similar to Bitcoin? A: Both are outputs-based, PoW. See also [Grin for Bitcoiners](grin4bitcoiners.md)
- Q: Mining? A: Testnet only. CPU, synchronous. GPU or asynchronous is not yet supported.
- Q: Block height? A: HTTP GET /v1/chain on a public peer node, for example http://testnet1.yeastplume.com:13413/v1/chain or (grintest.net)[https://grintest.net/]
- Q: Store of value? A: Not yet. Wait for Mainnet. Testnet1 can still disappear and reappear unexpectedly.
- Q: Block size limit? Target mean block time? A: Target mean block time is 1 block per 60 seconds. The size is limited by transaction "weight", though there is also a hard cap on the order of tens of MB.
- Q: Does grin scale? A: Yes, it might eventually do, thanks to transaction cut-through and possible level 2 solutions.
- Q: Fees? Monetary policy? A: https://github.com/mimblewimble/grin/wiki/fees-mining
- Q: Roadmap? A: Moving fast, changing things. Maybe look at [issues and milestones](https://github.com/mimblewimble/grin/milestones)
- Q: Proof of payment? A: Planned. Maybe in testnet2
- Q: Microtransactions? A: On testnet1, fees are 0.8% on a transaction of 1.0 coins.
- Q: Could Grin ever support or make use of:
- Q: Proof of payment? A: Planned. Maybe in Testnet2
- Q: Microtransactions? A: On Testnet1, fees are 0.8% on a transaction of 1.0 coins.
- Q: Could grin ever support or make use of:
☑ Probably, or ☐ Probably not
A: ☑ Contracts, ☑ [Pruning](pruning.md), ☐ Identity, like bitauth, ☑ SNARKs, ☑ [Cross chain atomic swaps, multisig, time locks, lightning network](grin4bitcoiners.md#scripting), ☑ Payment channels, ☑ hidden nodes / onion routing
A: ☑ Contracts, ☑ [Pruning](pruning.md), ☐ Identity, like bitauth, ☑ SNARKs, [☑ Cross chain atomic swaps, ☑ multisig, ☑ time locks, ☑ lightning network](grin4bitcoiners.md#scripting), ☑ Payment channels, ☑ hidden nodes / onion routing, ☑ [Scripting - clean & native w/ tiny limits](https://lists.launchpad.net/mimblewimble/msg00029.html)
- Q: HW requirements for mining? A: Not much. Don't invest in equipment yet, there's not even a final beta released, and a lot can change before any official blockchain is launched.
- Q: Quantum safe? A: Should be. In every Grin output, we also include a bit of hashed data, which is quantum safe. If quantum computing was to become a reality, we can safely introduce additional verification that would protect existing coins from being hacked. [Read more](https://github.com/mimblewimble/grin/blob/master/doc/grin4bitcoiners.md)
- Q: Quantum safe? A: No. Given sufficient warning, some QC resistance can be introduced through softforks.
# Troubleshooting
@ -25,6 +25,11 @@ Like other cryptocurrencies, newly mined coins are time locked, so mined coins c
## "Peer request error" or other peer/network issues after restarting grin server
Possible workaround is rm -rf .grin/peers/* then restart.
## grin server or waller crashes or hangs
Yes, this still happens quite often. You'll need to babysit grin.
Very welcome any solutions to give grin a "watchdog" solution that can restart
grin in case of trouble.
## Build error: Could not compile `tokio-retry`.
You need the latest rust. rustup, or [reinstall rust as described](build.md)
@ -32,4 +37,3 @@ You need the latest rust. rustup, or [reinstall rust as described](build.md)
## Transaction types
- (DONE) A temporary simple transaction exchange. Temporary - will be deprecated.
- (months) Maybe in testnet2 Full transaction; an exchange which involves a full roundtrip between sender and receiver using aggregate (Schnorr) signatures. Usable as proof of payment and for multisig.