We're 30,300 blocks from the reward drop!

[payb.tc]

Also... 20806 blocks to go!

ah, i remember when my clock still looked like 7:30 getting late now.

[1715170524]

1715170524

[1715170524]

1715170524

[smoothie]

Also... 20806 blocks to go!

ah, i remember when my clock still looked like 7:30 getting late now.

It's almost midnight Cinderella!

[runeks]

Current Block: 169672
Last Block with 50 BTC reward: 209998 https://blockexplorer.com/q/bcperblock/209998
First Block with 25 BTC reward: 209999 https://blockexplorer.com/q/bcperblock/209999

209999-169672=40327 blocks to reward halving.

First block with 25 BTC reward is not 209999, it's 210000.

Code reads:

Code:

int64 static GetBlockValue(int nHeight, int64 nFees)
{
    int64 nSubsidy = 50 * COIN;

    // Subsidy is cut in half every 4 years
    nSubsidy >>= (nHeight / 210000);

    return nSubsidy + nFees;
}

Only 20405 blocks to go now!
First 25 BTC block will probably be mined at: 2012-12-06 21:40:54 (GMT+2)

[payb.tc]

Current Block: 169672
Last Block with 50 BTC reward: 209998 https://blockexplorer.com/q/bcperblock/209998
First Block with 25 BTC reward: 209999 https://blockexplorer.com/q/bcperblock/209999

209999-169672=40327 blocks to reward halving.

First block with 25 BTC reward is not 209999, it's 210000.

Code reads:

Code:

int64 static GetBlockValue(int nHeight, int64 nFees)
{
    int64 nSubsidy = 50 * COIN;

    // Subsidy is cut in half every 4 years
    nSubsidy >>= (nHeight / 210000);

    return nSubsidy + nFees;
}

Only 20405 blocks to go now!
First 25 BTC block will probably be mined at: 2012-12-06 21:40:54 (GMT+2)

even though it's only a code-comment and not actual code, that is the kind of statement that can lead newbies to confusion about how things actually work:

 // Subsidy is cut in half every 4 years

should say:

 // Subsidy is cut in half approximately every 4 years

or

 // Subsidy is cut in half every 210000 blocks which will occur approximately every 4 years

[notme]

Current Block: 169672
Last Block with 50 BTC reward: 209998 https://blockexplorer.com/q/bcperblock/209998
First Block with 25 BTC reward: 209999 https://blockexplorer.com/q/bcperblock/209999

209999-169672=40327 blocks to reward halving.

First block with 25 BTC reward is not 209999, it's 210000.

Code reads:

Code:

int64 static GetBlockValue(int nHeight, int64 nFees)
{
    int64 nSubsidy = 50 * COIN;

    // Subsidy is cut in half every 4 years
    nSubsidy >>= (nHeight / 210000);

    return nSubsidy + nFees;
}

Only 20405 blocks to go now!
First 25 BTC block will probably be mined at: 2012-12-06 21:40:54 (GMT+2)

Last I checked, with integer division 209999/210000 = 0, so 210000 will be the first block with 25 BTC reward.  Height = block number since the first block was number 0.

[runeks]

^ Yes... That's exactly what I said. blockexplorer.com has got it wrong.

even though it's only a code-comment and not actual code, that is the kind of statement that can lead newbies to confusion about how things actually work:

 // Subsidy is cut in half every 4 years

should say:

 // Subsidy is cut in half approximately every 4 years

or

 // Subsidy is cut in half every 210000 blocks which will occur approximately every 4 years

Agreed. Though I'm not quite sure how much newbies read source code (or the comments in it).

[payb.tc]

^ Yes... That's exactly what I said. blockexplorer.com has got it wrong.

even though it's only a code-comment and not actual code, that is the kind of statement that can lead newbies to confusion about how things actually work:

 // Subsidy is cut in half every 4 years

should say:

 // Subsidy is cut in half approximately every 4 years

or

 // Subsidy is cut in half every 210000 blocks which will occur approximately every 4 years

Agreed. Though I'm not quite sure how much newbies read source code (or the comments in it).

well, i'm sure they read them a lot more when they're posted to this forum.

[runeks]

Let's hope we helped clarify the issue.

Also: https://github.com/bitcoin/bitcoin/pull/1608

[notme]

Let's hope we helped clarify the issue.

Also: https://github.com/bitcoin/bitcoin/pull/1608

Done and done.

[payb.tc]

Let's hope we helped clarify the issue.

Also: https://github.com/bitcoin/bitcoin/pull/1608

Done and done.

great, thanks guys. my first (sort of) contribution to the bitcoin source code comments.

[smoothie]

Also... 20806 blocks to go!

ah, i remember when my clock still looked like 7:30 getting late now.

On this site you should continually calculate an approximate date and time before reward halving. Would be nice to have. Bitcoinwatch.com should have the same so people have a deadline to look at.