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1861  Other / Meta / Re: How anonymous are the votes cast by users in polls here at bitcointalk.org? on: January 20, 2017, 02:35:06 AM
They're not anonymous.

There are many cryptographic techniques for doing anonymous voting. This is a well-studied topic.

I don't really recommend forum voting for sensitive topics, but if you really want to, you can do something like this:

Quote
Poll: What is your favorite color?
Answer 1: Red
Answer 2: Green
Answer 3: Blue
Answer 4: Yellow

Click here. If 1, give your honest vote. If 2, click here and give the answer indicated regardless of what your true response would be.

As the number of respondents increases, the random noise evens out, and at infinity the actual percentages will be exactly the same as if this randomization stuff didn't exist. (Assuming that everyone actually follows the instructions.) You can use statistical techniques to exactly quantify this stuff. But yet each person has plausible deniability. Note that this scheme assumes that everything associated with random.org is perfectly secure, which may not actually be a safe assumption -- it'd be better to use dice or a local CSPRNG, but that's more difficult to get people to do.
1862  Bitcoin / Development & Technical Discussion / Idea for a softfork pseudo-treechain thing on: January 20, 2017, 12:43:32 AM
An idea for safely using Bitcoin for generic timestamping just occurred to me. I'll roughly describe it here. (Though there's a good chance that someone has thought of this already, and I'm just poorly reinventing it.)

Do a softfork with these two new rules:

1. Miners will construct a separate hash tree called the chain tree, which I'll explain more later. Some special area in blocks is reserved for the root hash of this tree. For example, this could go in the coinbase transaction or in the first transaction after it.
2. When a transaction has an output with the special form <arbitrary magic constant> <merkleHash> OP_RETURN, then a block containing the transaction is only valid if merkleHash is the hash of one of the nodes of the chain tree. Therefore, a block can only be considered valid if it is transmitted with enough of the chain tree to verify all of these transactions in it, though the entire chain tree need not be known to anyone.

Each node of the chain tree would be something like:

Code:
struct node {
    char[8] chainId;
    char[32] hashOfData;
    char[32] hashOfLeft;
    char[32] hashOfRight;
}

Bitcoin full nodes do not verify anything about the chain tree unless required by rule #2 above. If there are no rule#2 transactions in a block, then the chain tree root can just be random data.

Bitcoin then becomes a generic decentralized timestamping server for an unlimited amount of data. There are several use-cases for this, including scaling:


You can create a chain like Bitcoin's, but with 32 MB blocks or whatever. Full nodes on this chain would need to be full nodes on both Bitcoin proper and a separate bigblock network. When receiving a new Bitcoin block, they'd download as much of the chain tree as they can, and then for nodes matching a certain chainId specified by the bigblock network specification, they'd try to download that block over the bigblock network. Maybe only the first such block would be considered valid (by some ordering specified by the bigblock network), or maybe all valid blocks in the chain tree would be accepted. The network can do whatever it wants.

No mining/PoS/etc. is necessary on the bigblock chain. Anyone can create blocks and submit them to Bitcoin miners for inclusion into the chain tree. However, an attack is possible where someone creates a valid block and gets it into the chain tree, but then refuses to actually send anyone the block until much later, rewriting history; to prevent this, each block should still have a header with a prev-block hash, and the longest chain of blocks should win.

If you're creating a bigblock block, you'd get miners to include your block's node into the chain tree by sending along with your request a transaction using the special rule#2 form specified above. There would typically be only one 0-value output in the special form, and the inputs can use SIGHASH_ANYONECANPAY so that people can work together to pay the fee. Additionally, the chain tree can actually extend inside of the bigblock chain so that bigblock transactions are part of the chain tree; then individual transaction-senders can add a similar incentive that is specific to their own transactions.

Unlike typical sidechains, this would not have SPV-level security. Even if all Bitcoin miners worked together, they could not create an invalid block on the bigblocks network that bigblock full nodes would have to accept. To achieve the same effect with sidechains, you have to do a soft-fork which adds a requirement that all Bitcoin full nodes also be full nodes on the sidechain. This might sometimes be OK, but not if the sidechain is doing something burdensome like creating massive blocks.

I don't think that you can do 2-way-peg without either more-or-less recreating normal sidechains or getting Bitcoin full nodes involved to a much greater extent (more like Peter Todd's Tree Chains idea). So the bigblocks chain described here would have to have its own currency. Whether or not this major drawback allows it to still be worthwhile, I'm not sure.



It works even better for timestamping applications that are less related to transactions, especially:
- As part of a decentralized DNS system.
- For general time-stamping of documents

For these, you maybe don't even need separate blocks at all: the transactions can be connected directly to the chain tree. And certainly you wouldn't need a separate currency.
1863  Economy / Auctions / Re: Advertise on this forum - Round 198 on: January 19, 2017, 07:49:56 PM
I just realized that I accidentally left the "auction ending soon" ad up after closing the last auction. This auction is not ending soon, but in something like 6-10 days. Sorry about that! If anyone bid expecting to have ads up soon, you can cancel your bid.

Hi Theymos, if we advertise now for a few days, can we bid again in a few weeks?  I'm not clear if the rules state that once you run an ad, you never get to run one again, or if there's a waiting period.

There's no waiting period, but ads are done in fixed time periods; each auction thread auctions off slots in an entire future time period. So you can't generally advertise for just a few days.
1864  Economy / Auctions / Advertise on this forum - Round 198 on: January 17, 2017, 06:48:19 PM
The forum sells ad space in the area beneath the first post of every topic page. This income is used primarily to cover hosting costs and to pay moderators for their work (there are many moderators, so each moderator gets only a small amount -- moderators should be seen as volunteers, not employees). Any leftover amount is typically either saved for future expenses or otherwise reinvested into the forum or the ecosystem.

Ads are allowed to contain any non-annoying HTML/CSS style. No images, JavaScript, or animation. Ads must appear 3 or fewer lines tall in my browser (Firefox, 900px wide). Ad text may not contain lies, misrepresentation, or inappropriate language. Ads may not link directly to any NSFW page. Ads may be rejected for other reasons, and I may remove ads even after they are accepted.

There are 10 total ad slots which are randomly rotated. So one ad slot has a one in ten chance of appearing. Nine of the slots are for sale here. Ads appear only on topic pages with more than one post, and only for people using the default theme.

Duration

- Your ads are guaranteed to be up for at least 7 days.
- I usually try to keep ads up for no more than 8 or 9 days.
- Sometimes ads might be up for longer, but hopefully no longer than 12 days. Even if past rounds sometimes lasted for long periods of time, you should not rely on this for your ads.

Stats

Exact historical impression counts per slot:
https://bitcointalk.org/adrotate.php?adstats

Info about the current ad slots:
https://bitcointalk.org/adrotate.php?adinfo

Ad blocking

Hero/Legendary members, Donators, VIPs, and moderators have the ability to disable ads. I don't expect many people to use this option. These people don't increase the impression stats for your ads.

I try to bypass Adblock Plus filters as much as possible, though this is not guaranteed. It is difficult or impossible for ABP filters to block the ad space itself without blocking posts. However, filters can match against the URLs in your links, your CSS classes and style attributes, and the HTML structure of your ads.

To prevent matches against URLs: I have some JavaScript which fixes links blocked by ABP. You must tell me if you want this for your ads. When someone with ABP and JavaScript enabled views your ads, your links are changed to a special randomized bitcointalk.org URL which redirects to your site when visited. People without ABP are unaffected, even if they don't have JavaScript enabled. The downsides are:
- ABP users will see the redirection link when they hover over the link, even if they disable ABP for the forum.
- Getting referral stats might become even more difficult.
- Some users might get a warning when redirecting from https to http.

To prevent matching on CSS classes/styles: Don't use inline CSS. I can give your ad a CSS class that is randomized on each pageload, but you must request this.

To prevent matching against your HTML structure: Use only one <a> and no other tags if possible. If your ads get blocked because of matching done on something inside of your ad, you are responsible for noticing this and giving me new ad HTML.

Designing ads

Make sure that your ads look good when you download and edit this test page:
https://bitcointalk.org/ad_test.html
Also read the comments in that file.

Images are not allowed no matter how they are created (CSS, SVG, or data URI). Occasionally I will make an exception for small logos and such, but you must get pre-approval from me first.

The maximum size of any one ad is 51200 bytes.

I will send you more detailed styling rules if you win slots in this auction (or upon request).

Auction rules

You must be at least a Jr Member to bid. If you are not a Jr Member and you really want to bid, you should PM me first. Tell me in the PM what you're going to advertise. You might be required to pay some amount in advance. Everyone else: Please quickly PM newbies who try to bid here to warn them against impersonation scammers.

If you have never purchased forum ad space before, and it is not blatantly obvious what you're going to advertise, say what you're going to advertise in your first bid, or tell me in a PM.

Post your bids in this thread. Prices must be stated in BTC per slot. You must state the maximum number of slots you want. When the auction ends, the highest bidders will have their slots filled until all nine slots are filled.

So if someone bids for 9 slots @ 5 BTC and this is the highest bid, then he'll get all 9 slots. If the two highest bids are 9 slots @ 4 BTC and 1 slot @ 5 BTC, then the first person will get 8 slots and the second person will get 1 slot.

The notation "2 @ 5" means 2 slots for 5 BTC each. Not 2 slots for 5 BTC total.

- When you post a bid, the bids in your previous posts are considered to be automatically canceled. You can put multiple bids in one post, however.
- All bid prices must be evenly divisible by 0.05.
- The bidding starts at 0.25.
- I will end the auction at an arbitrary time. Unless I say otherwise, I typically try to end auctions within a few days of 10 days from the time of this post, but unexpected circumstances may sometimes force me to end the auction anytime between 4 and 22 days from the start.
- If two people bid at the same price, the person who bid first will have his slots filled first.
- Bids are considered invalid and will be ignored if they do not specify both a price and a max quantity, or if they could not possibly win any slots

If these rules are confusing, look at some of the past forum ad auctions to see how it's done.

I reserve the right to reject bids, even days after the bid is made.

You must pay for your slots within 24 hours of receiving the payment address. Otherwise your slots may be sold to someone else, and I might even give you a negative trust rating. I will send you the payment information via forum PM from this account ("theymos", user ID 35) after announcing the auction results in this thread. You might receive false payment information from scammers pretending to be me. They might even have somewhat similar usernames. Be careful.
1865  Economy / Auctions / Re: Advertise on this forum - Round 197 on: January 17, 2017, 06:45:59 PM
Auction ended, final result:
Slots BTC/Slot Person
3 0.45 lightlord
5 0.40 coinmallio
1 0.40 Chronobank
1866  Economy / Auctions / Advertise on this forum - Round 197 on: January 07, 2017, 07:29:42 PM
The forum sells ad space in the area beneath the first post of every topic page. This income is used primarily to cover hosting costs and to pay moderators for their work (there are many moderators, so each moderator gets only a small amount -- moderators should be seen as volunteers, not employees). Any leftover amount is typically either saved for future expenses or otherwise reinvested into the forum or the ecosystem.

Ads are allowed to contain any non-annoying HTML/CSS style. No images, JavaScript, or animation. Ads must appear 3 or fewer lines tall in my browser (Firefox, 900px wide). Ad text may not contain lies, misrepresentation, or inappropriate language. Ads may not link directly to any NSFW page. Ads may be rejected for other reasons, and I may remove ads even after they are accepted.

There are 10 total ad slots which are randomly rotated. So one ad slot has a one in ten chance of appearing. Nine of the slots are for sale here. Ads appear only on topic pages with more than one post, and only for people using the default theme.

Duration

- Your ads are guaranteed to be up for at least 7 days.
- I usually try to keep ads up for no more than 8 or 9 days.
- Sometimes ads might be up for longer, but hopefully no longer than 12 days. Even if past rounds sometimes lasted for long periods of time, you should not rely on this for your ads.

Stats

Exact historical impression counts per slot:
https://bitcointalk.org/adrotate.php?adstats

Info about the current ad slots:
https://bitcointalk.org/adrotate.php?adinfo

Ad blocking

Hero/Legendary members, Donators, VIPs, and moderators have the ability to disable ads. I don't expect many people to use this option. These people don't increase the impression stats for your ads.

I try to bypass Adblock Plus filters as much as possible, though this is not guaranteed. It is difficult or impossible for ABP filters to block the ad space itself without blocking posts. However, filters can match against the URLs in your links, your CSS classes and style attributes, and the HTML structure of your ads.

To prevent matches against URLs: I have some JavaScript which fixes links blocked by ABP. You must tell me if you want this for your ads. When someone with ABP and JavaScript enabled views your ads, your links are changed to a special randomized bitcointalk.org URL which redirects to your site when visited. People without ABP are unaffected, even if they don't have JavaScript enabled. The downsides are:
- ABP users will see the redirection link when they hover over the link, even if they disable ABP for the forum.
- Getting referral stats might become even more difficult.
- Some users might get a warning when redirecting from https to http.

To prevent matching on CSS classes/styles: Don't use inline CSS. I can give your ad a CSS class that is randomized on each pageload, but you must request this.

To prevent matching against your HTML structure: Use only one <a> and no other tags if possible. If your ads get blocked because of matching done on something inside of your ad, you are responsible for noticing this and giving me new ad HTML.

Designing ads

Make sure that your ads look good when you download and edit this test page:
https://bitcointalk.org/ad_test.html
Also read the comments in that file.

Images are not allowed no matter how they are created (CSS, SVG, or data URI). Occasionally I will make an exception for small logos and such, but you must get pre-approval from me first.

The maximum size of any one ad is 51200 bytes.

I will send you more detailed styling rules if you win slots in this auction (or upon request).

Auction rules

You must be at least a Jr Member to bid. If you are not a Jr Member and you really want to bid, you should PM me first. Tell me in the PM what you're going to advertise. You might be required to pay some amount in advance. Everyone else: Please quickly PM newbies who try to bid here to warn them against impersonation scammers.

If you have never purchased forum ad space before, and it is not blatantly obvious what you're going to advertise, say what you're going to advertise in your first bid, or tell me in a PM.

Post your bids in this thread. Prices must be stated in BTC per slot. You must state the maximum number of slots you want. When the auction ends, the highest bidders will have their slots filled until all nine slots are filled.

So if someone bids for 9 slots @ 5 BTC and this is the highest bid, then he'll get all 9 slots. If the two highest bids are 9 slots @ 4 BTC and 1 slot @ 5 BTC, then the first person will get 8 slots and the second person will get 1 slot.

The notation "2 @ 5" means 2 slots for 5 BTC each. Not 2 slots for 5 BTC total.

- When you post a bid, the bids in your previous posts are considered to be automatically canceled. You can put multiple bids in one post, however.
- All bid prices must be evenly divisible by 0.05.
- The bidding starts at 0.25.
- I will end the auction at an arbitrary time. Unless I say otherwise, I typically try to end auctions within a few days of 10 days from the time of this post, but unexpected circumstances may sometimes force me to end the auction anytime between 4 and 22 days from the start.
- If two people bid at the same price, the person who bid first will have his slots filled first.
- Bids are considered invalid and will be ignored if they do not specify both a price and a max quantity, or if they could not possibly win any slots

If these rules are confusing, look at some of the past forum ad auctions to see how it's done.

I reserve the right to reject bids, even days after the bid is made.

You must pay for your slots within 24 hours of receiving the payment address. Otherwise your slots may be sold to someone else, and I might even give you a negative trust rating. I will send you the payment information via forum PM from this account ("theymos", user ID 35) after announcing the auction results in this thread. You might receive false payment information from scammers pretending to be me. They might even have somewhat similar usernames. Be careful.
1867  Economy / Auctions / Re: Advertise on this forum - Round 196 on: January 07, 2017, 07:22:18 PM
9 @ 0.3

You are a newbie, so you have to PM me first. Please carefully read the auction rules next time.

3 @ 0.61

Bids must be evenly divisible by 0.05, so I rounded this down to 0.60, but that's not enough to win slots in this case.

Auction ended. Final result:
Slots BTC/Slot Person
2 0.60 Randian Hero
3 0.60 lightlord
1 0.60 BitDouble.io
3 0.60 Lunarbets
1868  Other / Meta / Re: This site can’t be reached bitcointalk.org took too long to respond? on: January 01, 2017, 07:26:31 PM
I think that I found the problem. My anti-DDoS system got confused by the new year and was randomly banning IPs. These bans are removed and the bug is now fixed. Sorry about that!
1869  Other / Meta / Re: This site can’t be reached bitcointalk.org took too long to respond? on: January 01, 2017, 06:54:42 PM
This may be resolved now, but if you had this problem, please PM me:

- The IP address that you think got banned.
- The Web browser and operating system you use the access the forum.
- Any other software you use to interact with the forum, such as RSS readers.
1870  Economy / Auctions / Advertise on this forum - Round 196 on: December 28, 2016, 03:57:03 AM
The forum sells ad space in the area beneath the first post of every topic page. This income is used primarily to cover hosting costs and to pay moderators for their work (there are many moderators, so each moderator gets only a small amount -- moderators should be seen as volunteers, not employees). Any leftover amount is typically either saved for future expenses or otherwise reinvested into the forum or the ecosystem.

Ads are allowed to contain any non-annoying HTML/CSS style. No images, JavaScript, or animation. Ads must appear 3 or fewer lines tall in my browser (Firefox, 900px wide). Ad text may not contain lies, misrepresentation, or inappropriate language. Ads may not link directly to any NSFW page. Ads may be rejected for other reasons, and I may remove ads even after they are accepted.

There are 10 total ad slots which are randomly rotated. So one ad slot has a one in ten chance of appearing. Nine of the slots are for sale here. Ads appear only on topic pages with more than one post, and only for people using the default theme.

Duration

- Your ads are guaranteed to be up for at least 7 days.
- I usually try to keep ads up for no more than 8 or 9 days.
- Sometimes ads might be up for longer, but hopefully no longer than 12 days. Even if past rounds sometimes lasted for long periods of time, you should not rely on this for your ads.

Stats

Exact historical impression counts per slot:
https://bitcointalk.org/adrotate.php?adstats

Info about the current ad slots:
https://bitcointalk.org/adrotate.php?adinfo

Ad blocking

Hero/Legendary members, Donators, VIPs, and moderators have the ability to disable ads. I don't expect many people to use this option. These people don't increase the impression stats for your ads.

I try to bypass Adblock Plus filters as much as possible, though this is not guaranteed. It is difficult or impossible for ABP filters to block the ad space itself without blocking posts. However, filters can match against the URLs in your links, your CSS classes and style attributes, and the HTML structure of your ads.

To prevent matches against URLs: I have some JavaScript which fixes links blocked by ABP. You must tell me if you want this for your ads. When someone with ABP and JavaScript enabled views your ads, your links are changed to a special randomized bitcointalk.org URL which redirects to your site when visited. People without ABP are unaffected, even if they don't have JavaScript enabled. The downsides are:
- ABP users will see the redirection link when they hover over the link, even if they disable ABP for the forum.
- Getting referral stats might become even more difficult.
- Some users might get a warning when redirecting from https to http.

To prevent matching on CSS classes/styles: Don't use inline CSS. I can give your ad a CSS class that is randomized on each pageload, but you must request this.

To prevent matching against your HTML structure: Use only one <a> and no other tags if possible. If your ads get blocked because of matching done on something inside of your ad, you are responsible for noticing this and giving me new ad HTML.

Designing ads

Make sure that your ads look good when you download and edit this test page:
https://bitcointalk.org/ad_test.html
Also read the comments in that file.

Images are not allowed no matter how they are created (CSS, SVG, or data URI). Occasionally I will make an exception for small logos and such, but you must get pre-approval from me first.

The maximum size of any one ad is 51200 bytes.

I will send you more detailed styling rules if you win slots in this auction (or upon request).

Auction rules

You must be at least a Jr Member to bid. If you are not a Jr Member and you really want to bid, you should PM me first. Tell me in the PM what you're going to advertise. You might be required to pay some amount in advance. Everyone else: Please quickly PM newbies who try to bid here to warn them against impersonation scammers.

If you have never purchased forum ad space before, and it is not blatantly obvious what you're going to advertise, say what you're going to advertise in your first bid, or tell me in a PM.

Post your bids in this thread. Prices must be stated in BTC per slot. You must state the maximum number of slots you want. When the auction ends, the highest bidders will have their slots filled until all nine slots are filled.

So if someone bids for 9 slots @ 5 BTC and this is the highest bid, then he'll get all 9 slots. If the two highest bids are 9 slots @ 4 BTC and 1 slot @ 5 BTC, then the first person will get 8 slots and the second person will get 1 slot.

The notation "2 @ 5" means 2 slots for 5 BTC each. Not 2 slots for 5 BTC total.

- When you post a bid, the bids in your previous posts are considered to be automatically canceled. You can put multiple bids in one post, however.
- All bid prices must be evenly divisible by 0.05.
- The bidding starts at 0.25.
- I will end the auction at an arbitrary time. Unless I say otherwise, I typically try to end auctions within a few days of 10 days from the time of this post, but unexpected circumstances may sometimes force me to end the auction anytime between 4 and 22 days from the start.
- If two people bid at the same price, the person who bid first will have his slots filled first.
- Bids are considered invalid and will be ignored if they do not specify both a price and a max quantity, or if they could not possibly win any slots

If these rules are confusing, look at some of the past forum ad auctions to see how it's done.

I reserve the right to reject bids, even days after the bid is made.

You must pay for your slots within 24 hours of receiving the payment address. Otherwise your slots may be sold to someone else, and I might even give you a negative trust rating. I will send you the payment information via forum PM from this account ("theymos", user ID 35) after announcing the auction results in this thread. You might receive false payment information from scammers pretending to be me. They might even have somewhat similar usernames. Be careful.
1871  Economy / Auctions / Re: Advertise on this forum - Round 195 on: December 28, 2016, 12:43:25 AM
9 @ 0.75


You're too new, PM me first next time.

1 @ 1

I have previously rejected what you want to advertise.

Auction ended, final result:
Slots BTC/Slot Person
4 1.20 hashnest
2 1.10 coinmallio
3 1.10 Chronobank
1872  Bitcoin / Bitcoin Discussion / Idea for helping Venezuela using Bitcoin on: December 18, 2016, 04:53:09 AM
Venezuela is in an interesting situation where Bitcoiners may be in a unique position to help. As far as I've heard, most Venezuelans have decent Internet access, and they are also readily able to accept foreign packages. But even so, many people are starving due to various government nonsense. One major issue with the government (though certainly not the only issue) is that the Venezuelan currency is in hyperinflation. Bitcoin could be used as an alternative medium of exchange in Venezuela, and apparently this is already happening to a small extent. And separately from Bitcoin, as far as I can tell it'd be very much possible to ship supplies into Venezuela in order to help people there.

It'd be nice if someone trustworthy on the ground in Venezuela could organize the following activities:

 - Accept and distribute shipments of food donations to people who are not government supporters.
 - Accept and distribute BTC donations to act as a replacement for the garbage government currency.
 - Work in other ways to promote the usage of BTC as a medium of exchange in Venezuela.
 - Trade between BTC and other supplies in order to most effectively meet local demand, and also to promote the creation of a BTC-centric market.
 
There are some existing charities for helping Venezuela, but I suspect that a large percentage of donations to these charities end up in the hands of the government itself or government supporters. I'd like donations to go only to people who are not supportive of the government (or, even better, to those who actively oppose it).

Due to various not-yet-perfectly-solved technical issues, raw Bitcoin transactions are a bit cumbersome for medium-of-exchange purposes. Therefore, it may be best to distribute OpenDime devices preloaded with set denominations of BTC, with the amount of BTC written on stickers on the devices. (I have some security concerns regarding OpenDime's current design, but it'll suffice for now.)

Does this sound like a good idea? Would you donate? Does anyone know of any trustworthy Venezuelans who would be willing to work on this?
1873  Economy / Auctions / Advertise on this forum - Round 195 on: December 16, 2016, 09:24:01 PM
The forum sells ad space in the area beneath the first post of every topic page. This income is used primarily to cover hosting costs and to pay moderators for their work (there are many moderators, so each moderator gets only a small amount -- moderators should be seen as volunteers, not employees). Any leftover amount is typically either saved for future expenses or otherwise reinvested into the forum or the ecosystem.

Ads are allowed to contain any non-annoying HTML/CSS style. No images, JavaScript, or animation. Ads must appear 3 or fewer lines tall in my browser (Firefox, 900px wide). Ad text may not contain lies, misrepresentation, or inappropriate language. Ads may not link directly to any NSFW page. Ads may be rejected for other reasons, and I may remove ads even after they are accepted.

There are 10 total ad slots which are randomly rotated. So one ad slot has a one in ten chance of appearing. Nine of the slots are for sale here. Ads appear only on topic pages with more than one post, and only for people using the default theme.

Duration

- Your ads are guaranteed to be up for at least 7 days.
- I usually try to keep ads up for no more than 8 or 9 days.
- Sometimes ads might be up for longer, but hopefully no longer than 12 days. Even if past rounds sometimes lasted for long periods of time, you should not rely on this for your ads.

Stats

Exact historical impression counts per slot:
https://bitcointalk.org/adrotate.php?adstats

Info about the current ad slots:
https://bitcointalk.org/adrotate.php?adinfo

Ad blocking

Hero/Legendary members, Donators, VIPs, and moderators have the ability to disable ads. I don't expect many people to use this option. These people don't increase the impression stats for your ads.

I try to bypass Adblock Plus filters as much as possible, though this is not guaranteed. It is difficult or impossible for ABP filters to block the ad space itself without blocking posts. However, filters can match against the URLs in your links, your CSS classes and style attributes, and the HTML structure of your ads.

To prevent matches against URLs: I have some JavaScript which fixes links blocked by ABP. You must tell me if you want this for your ads. When someone with ABP and JavaScript enabled views your ads, your links are changed to a special randomized bitcointalk.org URL which redirects to your site when visited. People without ABP are unaffected, even if they don't have JavaScript enabled. The downsides are:
- ABP users will see the redirection link when they hover over the link, even if they disable ABP for the forum.
- Getting referral stats might become even more difficult.
- Some users might get a warning when redirecting from https to http.

To prevent matching on CSS classes/styles: Don't use inline CSS. I can give your ad a CSS class that is randomized on each pageload, but you must request this.

To prevent matching against your HTML structure: Use only one <a> and no other tags if possible. If your ads get blocked because of matching done on something inside of your ad, you are responsible for noticing this and giving me new ad HTML.

Designing ads

Make sure that your ads look good when you download and edit this test page:
https://bitcointalk.org/ad_test.html
Also read the comments in that file.

Images are not allowed no matter how they are created (CSS, SVG, or data URI). Occasionally I will make an exception for small logos and such, but you must get pre-approval from me first.

The maximum size of any one ad is 51200 bytes.

I will send you more detailed styling rules if you win slots in this auction (or upon request).

Auction rules

You must be at least a Jr Member to bid. If you are not a Jr Member and you really want to bid, you should PM me first. Tell me in the PM what you're going to advertise. You might be required to pay some amount in advance. Everyone else: Please quickly PM newbies who try to bid here to warn them against impersonation scammers.

If you have never purchased forum ad space before, and it is not blatantly obvious what you're going to advertise, say what you're going to advertise in your first bid, or tell me in a PM.

Post your bids in this thread. Prices must be stated in BTC per slot. You must state the maximum number of slots you want. When the auction ends, the highest bidders will have their slots filled until all nine slots are filled.

So if someone bids for 9 slots @ 5 BTC and this is the highest bid, then he'll get all 9 slots. If the two highest bids are 9 slots @ 4 BTC and 1 slot @ 5 BTC, then the first person will get 8 slots and the second person will get 1 slot.

The notation "2 @ 5" means 2 slots for 5 BTC each. Not 2 slots for 5 BTC total.

- When you post a bid, the bids in your previous posts are considered to be automatically canceled. You can put multiple bids in one post, however.
- All bid prices must be evenly divisible by 0.05.
- The bidding starts at 0.25.
- I will end the auction at an arbitrary time. Unless I say otherwise, I typically try to end auctions within a few days of 10 days from the time of this post, but unexpected circumstances may sometimes force me to end the auction anytime between 4 and 22 days from the start.
- If two people bid at the same price, the person who bid first will have his slots filled first.
- Bids are considered invalid and will be ignored if they do not specify both a price and a max quantity, or if they could not possibly win any slots

If these rules are confusing, look at some of the past forum ad auctions to see how it's done.

I reserve the right to reject bids, even days after the bid is made.

You must pay for your slots within 24 hours of receiving the payment address. Otherwise your slots may be sold to someone else, and I might even give you a negative trust rating. I will send you the payment information via forum PM from this account ("theymos", user ID 35) after announcing the auction results in this thread. You might receive false payment information from scammers pretending to be me. They might even have somewhat similar usernames. Be careful.
1874  Economy / Auctions / Re: Advertise on this forum - Round 194 on: December 16, 2016, 09:13:48 PM
1 @ 1.25

Sorry, but humaniq (which I assume you're going to advertise) seems really shady, so I won't accept your bid.

1 @ 0.85

Your bid was too low to win slots anyway, but next time please post what you're going to advertise.

Auction ended. Final result:
Slots BTC/Slot Person
6 1.20 FortuneJack
3 1.10 hashnest
1875  Other / Meta / Re: Is it worth having a board for operators of full nodes? on: December 16, 2016, 07:14:03 AM
The problem is that someone would probably set up a service for faking running a full node. They'd run one on AWS and just change the IP address every time someone wants to register. Even if I periodically checked that their full node was still running, someone could run one node with many IPs pointing to that one node, and sell cheap subscriptions for one of these IPs.

There's no way to verify that someone is definitely running a full node. This is partly the reason why Bitcoin doesn't reward people for running full nodes. (The other part is that simply running a full node doesn't matter very much; what we want to optimize is the number of people doing real transactions via their own independent full nodes, which is even more difficult to measure.)
1876  Other / Meta / Re: Question about characters limit? on: December 13, 2016, 09:20:49 PM
It's not so simple as the character limit in mysql, the database server that the forum presumably uses, is 65,535 bytes for a VARCHAR: https://dev.mysql.com/doc/refman/5.7/en/char.html

Fixing this would mean some major changes to the forums software, which likely won't happen in this software, but the new forum software that is being developed uses a different database server which may not have this limit. So something like you propose is much easier to do with the new forum software.

Yes, it's a technical limitation. Epochtalk doesn't have the same limitation, though IIRC as of now there's a soft 64k character limit (rather than byte limit), since it seems prudent to have some limit.
1877  Other / Meta / Re: Question about characters limit? on: December 10, 2016, 11:57:13 PM
Posts over 65535 bytes get cut off at 65535 bytes. If that makes the BBcode invalid in certain ways, then you get the INVALID BBCODE error.

Also, note that a byte is different from a character. Because SMF stores "special" characters in a particularly space-inefficient way, each Russian character uses about 6 bytes, and each line break also uses 6 bytes.
1878  Economy / Auctions / Re: Advertise on this forum - Round 194 on: December 08, 2016, 07:09:51 PM
For this auction, I have more specific timing info than usual. Round 194 will start late Sunday (18th) or early Monday (19th), and this auction for Round 194 will end sometime between the 15th and the 17th.
1879  Economy / Auctions / Re: Advertise on this forum - Round 193 on: December 08, 2016, 07:02:03 PM
I received a special offer for round 193 which is too good to pass up. Therefore, this auction is cancelled. Sorry if this inconveniences anyone.

Round 194 will start sooner than is typical, though, so hopefully nobody's ads will be too delayed.
1880  Economy / Auctions / Advertise on this forum - Round 194 on: December 08, 2016, 07:01:06 PM
The forum sells ad space in the area beneath the first post of every topic page. This income is used primarily to cover hosting costs and to pay moderators for their work (there are many moderators, so each moderator gets only a small amount -- moderators should be seen as volunteers, not employees). Any leftover amount is typically either saved for future expenses or otherwise reinvested into the forum or the ecosystem.

Ads are allowed to contain any non-annoying HTML/CSS style. No images, JavaScript, or animation. Ads must appear 3 or fewer lines tall in my browser (Firefox, 900px wide). Ad text may not contain lies, misrepresentation, or inappropriate language. Ads may not link directly to any NSFW page. Ads may be rejected for other reasons, and I may remove ads even after they are accepted.

There are 10 total ad slots which are randomly rotated. So one ad slot has a one in ten chance of appearing. Nine of the slots are for sale here. Ads appear only on topic pages with more than one post, and only for people using the default theme.

Duration

- Your ads are guaranteed to be up for at least 7 days.
- I usually try to keep ads up for no more than 8 or 9 days.
- Sometimes ads might be up for longer, but hopefully no longer than 12 days. Even if past rounds sometimes lasted for long periods of time, you should not rely on this for your ads.

Stats

Exact historical impression counts per slot:
https://bitcointalk.org/adrotate.php?adstats

Info about the current ad slots:
https://bitcointalk.org/adrotate.php?adinfo

Ad blocking

Hero/Legendary members, Donators, VIPs, and moderators have the ability to disable ads. I don't expect many people to use this option. These people don't increase the impression stats for your ads.

I try to bypass Adblock Plus filters as much as possible, though this is not guaranteed. It is difficult or impossible for ABP filters to block the ad space itself without blocking posts. However, filters can match against the URLs in your links, your CSS classes and style attributes, and the HTML structure of your ads.

To prevent matches against URLs: I have some JavaScript which fixes links blocked by ABP. You must tell me if you want this for your ads. When someone with ABP and JavaScript enabled views your ads, your links are changed to a special randomized bitcointalk.org URL which redirects to your site when visited. People without ABP are unaffected, even if they don't have JavaScript enabled. The downsides are:
- ABP users will see the redirection link when they hover over the link, even if they disable ABP for the forum.
- Getting referral stats might become even more difficult.
- Some users might get a warning when redirecting from https to http.

To prevent matching on CSS classes/styles: Don't use inline CSS. I can give your ad a CSS class that is randomized on each pageload, but you must request this.

To prevent matching against your HTML structure: Use only one <a> and no other tags if possible. If your ads get blocked because of matching done on something inside of your ad, you are responsible for noticing this and giving me new ad HTML.

Designing ads

Make sure that your ads look good when you download and edit this test page:
https://bitcointalk.org/ad_test.html
Also read the comments in that file.

Images are not allowed no matter how they are created (CSS, SVG, or data URI). Occasionally I will make an exception for small logos and such, but you must get pre-approval from me first.

The maximum size of any one ad is 51200 bytes.

I will send you more detailed styling rules if you win slots in this auction (or upon request).

Auction rules

You must be at least a Jr Member to bid. If you are not a Jr Member and you really want to bid, you should PM me first. Tell me in the PM what you're going to advertise. You might be required to pay some amount in advance. Everyone else: Please quickly PM newbies who try to bid here to warn them against impersonation scammers.

If you have never purchased forum ad space before, and it is not blatantly obvious what you're going to advertise, say what you're going to advertise in your first bid, or tell me in a PM.

Post your bids in this thread. Prices must be stated in BTC per slot. You must state the maximum number of slots you want. When the auction ends, the highest bidders will have their slots filled until all nine slots are filled.

So if someone bids for 9 slots @ 5 BTC and this is the highest bid, then he'll get all 9 slots. If the two highest bids are 9 slots @ 4 BTC and 1 slot @ 5 BTC, then the first person will get 8 slots and the second person will get 1 slot.

The notation "2 @ 5" means 2 slots for 5 BTC each. Not 2 slots for 5 BTC total.

- When you post a bid, the bids in your previous posts are considered to be automatically canceled. You can put multiple bids in one post, however.
- All bid prices must be evenly divisible by 0.05.
- The bidding starts at 0.25.
- I will end the auction at an arbitrary time. Unless I say otherwise, I typically try to end auctions within a few days of 10 days from the time of this post, but unexpected circumstances may sometimes force me to end the auction anytime between 4 and 22 days from the start.
- If two people bid at the same price, the person who bid first will have his slots filled first.
- Bids are considered invalid and will be ignored if they do not specify both a price and a max quantity, or if they could not possibly win any slots

If these rules are confusing, look at some of the past forum ad auctions to see how it's done.

I reserve the right to reject bids, even days after the bid is made.

You must pay for your slots within 24 hours of receiving the payment address. Otherwise your slots may be sold to someone else, and I might even give you a negative trust rating. I will send you the payment information via forum PM from this account ("theymos", user ID 35) after announcing the auction results in this thread. You might receive false payment information from scammers pretending to be me. They might even have somewhat similar usernames. Be careful.
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