Gregory Maxwell [ARCHIVE] on Nostr: 📅 Original date posted:2011-08-24 🗒️ Summary of this message: A proposal to ...
đź“… Original date posted:2011-08-24
🗒️ Summary of this message: A proposal to replace hard limits with dynamically adapting limits and adjust difficulty every block without limits was deemed too early. Increasing precision was agreed upon, but infinite numerator + denominator was considered insane. Removing the 100 confirmation requirement for spending generated coins was not recommended.
đź“ť Original message:On Wed, Aug 24, 2011 at 12:15 PM, Luke-Jr <luke at dashjr.org> wrote:
> - Replace hard limits (like 1 MB maximum block size) with something that can
> dynamically adapt with the times. Maybe based on difficulty so it can't be
> gamed?
Too early for that.
> - Adjust difficulty every block, without limits, based on a N-block sliding
> Â window. I think this would solve the issue when the hashrate drops
> Â overnight, but maybe also add a block time limit, or perhaps include the
> Â "current block" in the difficulty calculation?
The quantized scheme limits the amount of difficulty skew miners can
create by lying about timestamps to about a half a percent. A rolling
window with the same time constant would allow much more skew.
> Replacing the "Satoshi" 64-bit integers with
> "Satoshi" variable-size fractions (ie, infinite numerator + denominator)
Increasing precision I would agree with but, sadly, causing people to
need more than 64 bit would create a lot of bugs.
infinite numerator + denominator is absolutely completely and totally
batshit insane. For one, it has weird consequences that the same value
can have redundant encodings.
Most importantly, it suffers factor inflation: If you spend inputs
1/977 1/983 1/991 1/997 the smallest denominator you can use for the
output 948892238557.
Not to mention that the idiots writing financial software can only
barely manage to not use radix-2 floating point on everything. Asking
them to use arbitrary rational numbers with mixed radix will never
fly.
> - Remove the 100 confirmation requirement for spending generated coins. If
> they are respent before 100 confirmations, clients can/should flag the new
> outputs as also "generated" or "recently generated" so recipients are aware
> of the risk.
Please lets not make bitcoin _less_ trustworthy.
The 100 block maturity on generated coins is good. The generation from
an orphaning is lost forever like the losing side of a double spend,
but far far worse... because orphaning happens all the time on its own
without any malice.
I agree it's obnoxious that you can't pad your generation payouts
without creating more transactions, but I don't see a solution for
that. Repeat the addresses... make up for it by increasing your payout
threshold.
🗒️ Summary of this message: A proposal to replace hard limits with dynamically adapting limits and adjust difficulty every block without limits was deemed too early. Increasing precision was agreed upon, but infinite numerator + denominator was considered insane. Removing the 100 confirmation requirement for spending generated coins was not recommended.
đź“ť Original message:On Wed, Aug 24, 2011 at 12:15 PM, Luke-Jr <luke at dashjr.org> wrote:
> - Replace hard limits (like 1 MB maximum block size) with something that can
> dynamically adapt with the times. Maybe based on difficulty so it can't be
> gamed?
Too early for that.
> - Adjust difficulty every block, without limits, based on a N-block sliding
> Â window. I think this would solve the issue when the hashrate drops
> Â overnight, but maybe also add a block time limit, or perhaps include the
> Â "current block" in the difficulty calculation?
The quantized scheme limits the amount of difficulty skew miners can
create by lying about timestamps to about a half a percent. A rolling
window with the same time constant would allow much more skew.
> Replacing the "Satoshi" 64-bit integers with
> "Satoshi" variable-size fractions (ie, infinite numerator + denominator)
Increasing precision I would agree with but, sadly, causing people to
need more than 64 bit would create a lot of bugs.
infinite numerator + denominator is absolutely completely and totally
batshit insane. For one, it has weird consequences that the same value
can have redundant encodings.
Most importantly, it suffers factor inflation: If you spend inputs
1/977 1/983 1/991 1/997 the smallest denominator you can use for the
output 948892238557.
Not to mention that the idiots writing financial software can only
barely manage to not use radix-2 floating point on everything. Asking
them to use arbitrary rational numbers with mixed radix will never
fly.
> - Remove the 100 confirmation requirement for spending generated coins. If
> they are respent before 100 confirmations, clients can/should flag the new
> outputs as also "generated" or "recently generated" so recipients are aware
> of the risk.
Please lets not make bitcoin _less_ trustworthy.
The 100 block maturity on generated coins is good. The generation from
an orphaning is lost forever like the losing side of a double spend,
but far far worse... because orphaning happens all the time on its own
without any malice.
I agree it's obnoxious that you can't pad your generation payouts
without creating more transactions, but I don't see a solution for
that. Repeat the addresses... make up for it by increasing your payout
threshold.