Hacker Newsnew | past | comments | ask | show | jobs | submit | mkeung's commentslogin

I live in a studio with 8 lights, 2 over my desk, 4 over my living room, 2 over my bed (how I setup the place). The two light switches are wired to 4 and 4. Alexa + light control lets me group them into desk, living room, common area (desk + living room), bedroom, all lights. It's more convenient than light switches which give me absolutes of all on or too many on depending on what I'm doing. The alternative is to rewire the place, which I do not own.


http://ngcordova.com/docs/plugins/pushNotifications/

I didn't have any issues using the above.

You still need some sort of server (i've used rails, ex: https://github.com/rpush/rpush) to send the push notifications (and setup the apns certs), but the above will capture them on your ionic app itself.


From my understanding, scrypt ASICs have been held back by the cost of memory hardware as scrypt requires more memory usage. There has been talk of forking existing scrypt currencies to require even more memory to counter ASICs further but so far I think only a few new coins have done this.


My understanding is the scrypt currencies use the lowest possible memory factor, which was just stupid.


Its memory requirement of 128KB is a compromise between computation-hardness for the prover and verification efficiency for the verifier. You don't want verification of a proof-of-work to take a lot of resources, since every client has to perform it.


I don't see why not, custom-built just means grabbing consumer grade gpus, with the "best" one currently the R9 270, which is ~$200 usd each. I don't think you need a huge budget so for academic reasons, why not. Plus, there are many scrypt coins out there (or they could even create harvardcoin) they could use for research purposes.

Don't need to necessarily use the mainstream profitable ones


If cryptocurrencies become mainstream, this will be a bigger problem I think. Even things like "free" electricity are attractive for mining purposes, ex: universities, businesses, etc. If every student setup mining, it adds up (at the university / business' expense).

If I am the one paying for an office at $500 a month that includes all electricity usage, is it fair to plug in a ton of mining hardware and profit / subsidize myself? What if I manage to use more than $500 worth of electricity?

Is shared space even setup for monitoring individual renter's usage behavior? I don't think so.

edit: note, I do mine Doge but with my own stuff at home


There is a new extremely "green" office building in Seattle that does meter/monitor individual electricity plugs. It's uncommon, but not entirely unprecedented.


I wonder how much electricity they use to monitor individual plugs and whether it will actually result in a net decrease in electricity usage...


Is that the greenfire campus or whatever in Ballard?


I was thinking of the Bullet Center on cap hill actually. Not sure about Greenfire.


I've actually caught wind of schemes in-flight exactly like you describe, using mining to transfer money from the business to the owner, essentially off the books.


Is it fair? That's a moral question. Kinda feels like stealing to me. And, anyway, if you were using electricity at a large enough scale to make this interesting, somebody would likely notice.


At which point does it stop being fair usage of a resource, and become stealing?


For me, a good rule of thumb is that if you feel you need to hide what you're doing from your landlord/employer/etc, then you're probably doing something wrong.


That's a dead simple problem to fix. Just don't allow for unlimited free access to resources used for crypto currency mining.


but in a large building / campus, they can't possibly monitor electricity usage per individual or company occupying the space without upgrading the infrastructure significantly.


And things like a class of students sitting in a lecture theater with their laptops plugged in, are they mining or gaming or maybe just some hung process is in an infinite loop taking the CPU to 100%?

(I'll admit that I've used a "heater.exe" for warming my hands with a laptop on a cold day...)


I'm imagining a future where every 'public' power outlet has a credit card reader attached.


You mean a bitcoin interface, surely :-)


That sounds like an infinite loop waiting to happen.


Imagine a world of digital sustenance miners.


Just because you won't get caught doesn't make it right.


When Google was young, they negotiated an extreme power allowance() from they colo facility, and then engineered their systems to maximize their usage, including packing custom hardware that used for more power than standard equipment per rack unit. It is unclear if the salesperson who signed the contract knew what Google was buying.

(and incoming bandwidth allowance -- yay, web crawler)


we just wanted to get feedback on the site, like any other show hn. wasn't trying to provide novel or insightful information, other than a guide simple enough that my parents could follow.


Sorry, I didn't mean to single you guys out individually, it was more of a meta comment. Resources that make it easier for people to learn and do things are always helpful :)


there is a big tipping culture in the community, especially on reddit. in addition to karma upvotes, people can use a tipbot to send doge to each other. the /r/dogecoin subreddit has 40k+ subscribers, with lots of tipping in each thread.

additionally, it may be that each transaction is counted multiple times. if I were to tip you, I would first send funds to the bot, who then sends funds to you.


Ok, lets be generous and assume all 45,199 /r/dogecoin subscribers tip daily, and there are 2 transactions for every tip. Each subscriber would need to tip an average of:

$427,079,860 / 2 / 45,199 = $4724.44

Not likely, IMHO, even if each tip required 10 or 100 transactions.

Most tips seem to be less than a dollar. http://www.reddit.com/user/dogetipbot

It just doesn't add up. Where else is Dogecoin being used?

EDIT: some actual numbers are available here http://www.reddit.com/r/dogecoin/comments/1wd49h/huge_udoget...

---

On January 26th:

- 7,258 inbox messages were read by dogetipbot (even more were sent and were still unread at the time -- backlog).

- 4,565 tips were given.

- 572 new users registered for their first time.

- 359 shibes withdrew some dogecoins

- 743 shibes still kept sending +info requests even though i turned them off. ;)

- 1,063,466.73376456 dogecoins were tipped.

---

1,063,466.73376456 dogecoins = $1488.85 USD (using current exchange rate of 1 doge =US$0.0014)

There you have it. ~$1500 worth of Dogecoin was tipped on the /r/dogecoin subreddit on Jan 26, while $240M worth of Dogecoin transactions took place.


I haven't run any numbers (great analysis by the way). Other sources I can think of:

-conversion from other currency holdings (LTC, BTC), which some people have openly said they did

-recent run up / down of the value caused a lot of people who were previously holding to buy / sell (started around the time of the big news push with the Jamaican bobsled team fundraiser, right now it is dropping)

-general interest, people buying some amount to hold for the first time. i have had friends making their first crypto purchase in doge recently, who don't understand the technology and probably shouldn't (due to the news i think and not wanting to miss out on bitcoin 2.0)

-Chinese investors getting in / out? i think i saw a graph of cny to doge being a major part of the transactions

personally, i haven't looked into it that seriously because i haven't invested seriously. i put time in (especially for the site content), but all my coins are mined from an existing gaming computer. my total doge USD value is ~$50, which is probably lower than what people would expect of the dogecointutorial creator. my doge mining actually started because I wanted to cheaply explore how cryptocurrencies worked. then the tutorial site actually started when i was testing out aws / github pages for landing page hosting. originally i just had some sort of dogecoin index placeholder but found myself jumping around / searching for info as i learned about doge and cryptocurrencies...so i started my own guide. if you do more research, do share it!


I did some more calculations here: https://www.quora.com/Dogecoin/Where-is-the-currently-massiv...

Notably, the volume across all exchanges today is 562,124,614 doge, which is about $786,974, and mining accounts for another ~$1,000,000/day (500000 * 60 * 24 * $0.0014).

2x each of those to account for transactions into/out of mining pools and exchanges, and it's still only a few million dollars (plus a lot of trading never touches the blockchain)


bookmarked, will keep an eye on it.


I would assume much of this is done by speculators. iBit, a company that directly connects the bitcoin market with NASDAQ, enables high volumes of trade. Once you have bitcoin all other alt currencies are very easy to trade. Many speculators love the high volatility of trades as it gives them an opportunity to buy low and sell high, especially if you've got a high risk portion in your investment portfolio.


Most trades never touch the blockchain until a user transfer the coins out of their exchange account into a different wallet.

Even if they did, see my other comments about how the volume across Dogecoin exchanges is only about $1M/day.


what? there is no sign up. copy paste into the wrong thread?


keep it up! it's def a pain point with the currency


I mentioned in the wallet section that you can download most of the block chain in a file here: http://doge.rstreefland.com/

Hope that helps!


Guidelines | FAQ | Lists | API | Security | Legal | Apply to YC | Contact

Search: