MIME-Version: 1.0
Date: Fri, 25 Mar 2016 13:27:30 -0400
Message-ID: <CAO1Z-eMxRfM8O+uTFbK0rb-zuL0KKLgYFJex35Rk8UJgGYd4RA@mail.gmail.com>
From: Chris Kleeschulte <laconia@gmail.com>
To: bitcoin-dev@lists.linuxfoundation.org
Content-Type: multipart/alternative; boundary=047d7b6d83b6b46270052ee2e0dd
Subject: [bitcoin-dev] Proposed BIP: Maximum block size consensus rule based
 on median block size (adaptive block size)
Precedence: list

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The following draft BIP proposes changing the MAX_BLOCK_SIZE consensus rule
to be a function of the median block size over the last 12,960 blocks
(about three months) multiplied by 2 and calculated when a block is
connected to the blockchain.

Motivation:

The purpose of this consensus rule change is to allow the maximum block
size to increase or decrease based on actual network usage. A block size
limit, as discussed here, prevents certain types of denial of service
attacks on the Bitcoin network, however a fixed limit does not allow the
capacity of the network to increase as advancements in scaling are
realized.  By adjusting the limit based on the sizes of blocks in the
recent past, the throughput of the network can adjust to changes in user
demand and scaling related technology advancements while still being
protected from denial of service attacks.


Full proposal here:

https://github.com/bitpay/bips/blob/master/bip-adaptiveblocksize.mediawiki

I look forward to your consideration.

thank you,
-- 
Chris Kleeschulte

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<div dir=3D"ltr">The following draft BIP proposes changing the MAX_BLOCK_SI=
ZE consensus rule to be a function of the median block size over the last 1=
2,960 blocks (about three months) multiplied by 2 and calculated when a blo=
ck is connected to the blockchain.<div><br></div><div>Motivation:</div><div=
><br></div><div>The purpose of this consensus rule change is to allow the m=
aximum block size to increase or decrease based on actual network usage. A =
block size limit, as discussed here, prevents certain types of denial of se=
rvice attacks on the Bitcoin network, however a fixed limit does not allow =
the capacity of the network to increase as advancements in scaling are real=
ized.=C2=A0 By adjusting the limit based on the sizes of blocks in the rece=
nt past, the throughput of the network can adjust to changes in user demand=
 and scaling related technology advancements while still being protected fr=
om denial of service attacks.</div><div><br></div><div><br></div><div>Full =
proposal here:</div><div><br></div><div><a href=3D"https://github.com/bitpa=
y/bips/blob/master/bip-adaptiveblocksize.mediawiki">https://github.com/bitp=
ay/bips/blob/master/bip-adaptiveblocksize.mediawiki</a><br></div><div><br><=
/div><div>I look forward to your consideration.</div><div><br></div><div>th=
ank you,</div><div>-- <br><div class=3D"gmail_signature"><div dir=3D"ltr"><=
div dir=3D"ltr"><div dir=3D"ltr"><div dir=3D"ltr">Chris Kleeschulte<br><br>=
</div></div></div></div></div>
</div></div>

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