insomnious bitcoin miners
Anyways, I think that having the transaction data available for miners to verify is worthwhile. Strata on January 18, So far, through getwork own testing, my definition concur with the OP's to within an acceptable margin for error. January 12, It accepts one optional bitcoin if provided, this must be the "data" provided by a prior request modified to meet the server's proof-of-work requirements.
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If you use server with non-zero ttr you should try to return to the server with 0 ttr after this number of minutes. If that meets the difficulty , you win generated a block or share! Stratum protocol is also acceptable for above-listed reasons 2 and January 18, , GBT, Stratum, and getwork January 13, , No disrespect intended for your thoughtful response, but this made me chuckle.
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This means for pdifficulty 1, you want to check getwork the last strata bits are zero. Have fun, try to stay definition topic here Definition server may include a X-Switch-To header containing a single JSON object formatted in the same fashon as items bitcoin the hostlist array extension. It has mostly strata superceded by the newer getblocktemplate mining protocol, but the data format is bitcoin often used getwork to some miner structures. If supported, the server may include a "submitold" key in the JSON result. December 18,
Stratum - Bitcoin Wiki
That's the extent of the confirmation delays as well. The fact that blocks can take that much time just to propagate the network makes it even less relevant. If "oh no, I sent my transaction 90 seconds too late! I'm just using it as a worst-case example. Luke-Jr on December 16, , If you think there is some problem with that - then feel free to point out what it is - or go bug the CURL developers and tell them their code is wrong.
The amount is only for the latest transfer and will be reset again for each new transfer. Lots of good discussion, and I love the flip-flop point-counterpoint going on here.
Third, there has still not been any valid explanation for how sending the miner all the transactions in their entirety actually improves the security of the network. Unless someone is running mining software and a local bitcoin node and is comparing the values from each, and then decides what transactions overlap, and what are valid transactions the pool has chosen to filter out, and then determined that the data is enough of the transaction list to be a true set of transactions, having the transactions does not serve any purpose.
Pool security validity software should be developed that does this, and people should use said approach if they care to confirm the pool is behaving. It simply grabs them and then if it doesn't get them claims the pool is doing something untoward if it doesn't match the template.
The transactions could be anything. It also completely ignores the fact that the vast majority of miners run their mining software on machines that aren't actually running bitcoin nodes with which to check the transactions. While the main bitcoin devs might wish this to be the case, it's not remotely the reality and is not going to become it. This is why I, and most other Bitcoin developers, work to improve standardization and make Bitcoin more friendly to multiple competing implementations maintained by different people.
Remember that GBT is the standard developed by free cooperation of many different people with different projects, whereas stratum was the protocol developed behind closed doors by a single individual. Please comment, critique, criticize or ridicule BIP Hero Member Offline Activity: No disrespect intended for your thoughtful response, but this made me chuckle. It's only Luke's paranoia code that caused anyone to actually notice it. December 18, , We have a very suspicious community that will continually check the pools' actions.
With your code commits you reinforce centralization by marginalizing anyone who can't or doesn't want to use GCC and has implementation ideas differing from the ones you espouse. January 12, , The marginalization of Windows users and developers like Casascius is very glaring example: I don't get it. Best thing about them? January 13, , Luke-Jr on January 13, , I understand your arguments, but I'm unable to reconcile them with your actions.
With your writing in English you are advocating distributed systems and heterogenous implementations. Stratum protocol is also acceptable for above-listed reasons 2 and This should be advertised if the miner supports generating its own midstates. In this case, the pool may decide to omit the now-deprecated "midstate" and "hash1" fields in the work response.
In addition to X-Mining-Extensions, the miner should also send X-Mining-Hashrate, with an integer value of expected hashrate measured in full hashes per second.
The server may then add an additional field to the JSON response, "noncerange", which contains two bit integers specifying the starting and final nonce the miner is allowed to scan. While both values are given in big endian, miners should iterate over the range in their native bit integer type SHA works with bit integers, not character data. The miner should implement rollntime by starting from the first nonce in the range every second. When a share is rejected, the server may include a X-Reject-Reason header indicating the reason why it was rejected.
Values for this header are undefined. Iff the getwork response includes a "X-Roll-NTime" header with any value other than "N" or the null string, the miner may within reason change the ntime field in addition to the nonce. Also note that the headers of a share submission should not influence the behaviour of work-- specifically, if a share submit does not have the header, it should not disable rollntime for the current work which did.
Due to network latency, Luke-Jr recommends the following design for miners:. If this header is present, the Stratum-capable miner should switch to the specified URL immediately. Theoretically pool can implement other transports as well, although at this date Stratum miners implement only TCP transport.
This feature should only be advertised with a longpoll request. If received with a regular request, it should be ignored. If supported, the server may include a "submitold" key in the JSON result. If this key is present and true, the miner should NOT discard the result of old work default per longpoll specification , but instead submit them to the server. The miner should still stop working on the old work, and begin working on the new work as soon as it can without losing the result of the old work.
The server may include a X-Switch-To header containing a single JSON object formatted in the same fashon as items in the hostlist array extension. If this header is present, the miner should switch to the specified server for at least ttr minutes after finishing current "getwork" and submitting its results.
Getwork From Bitcoin Wiki. Retrieved from " https: Navigation menu Personal tools Create account Log in. Views Read View source View history. Sister projects Essays Source. This page was last modified on 1 April , at