Discussion:
[bitcoin-dev] Increased blockspace enabled by SegWit limited to just witness data?
CANNON via bitcoin-dev
2018-02-18 16:26:14 UTC
Permalink
I have a question in reference to the increased blockspace enabled
by the segregated witness upgrade. Is this extra blockspace beyond
the legacy 1 MB limit limited to just witness data?


- --
Cannon
PGP Fingerprint: 2BB5 15CD 66E7 4E28 45DC 6494 A5A2 2879 3F06 E832
Email: ***@cannon-ciota.info

NOTICE: ALL EMAIL CORRESPONDENCE NOT SIGNED/ENCRYPTED WITH PGP SHOULD
BE CONSIDERED POTENTIALLY FORGED, AND NOT PRIVATE.
Ryan Havar via bitcoin-dev
2018-02-18 17:04:17 UTC
Permalink
No, you are misunderstanding. The block size limit (1MB) has been replaced in favor of a block weight limit (4M weight). Bytes which must be sent to old clients are weighted at 4 units each which is what allows it to be a soft fork.

So as such, there's not two separate limits or anything.

P.S. what's up with your signature lol


​-Ryan

​

-------- Original Message --------
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA512
I have a question in reference to the increased blockspace enabled
by the segregated witness upgrade. Is this extra blockspace beyond
the legacy 1 MB limit limited to just witness data?
Cannon
PGP Fingerprint: 2BB5 15CD 66E7 4E28 45DC 6494 A5A2 2879 3F06 E832
NOTICE: ALL EMAIL CORRESPONDENCE NOT SIGNED/ENCRYPTED WITH PGP SHOULD
BE CONSIDERED POTENTIALLY FORGED, AND NOT PRIVATE.
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Eric Voskuil via bitcoin-dev
2018-02-18 18:39:09 UTC
Permalink
As a soft fork, all preceding rules remain in effect. No rule has been “replaced”. Blocks must validate against pre-segwit rules or are invalid. Additional rules are applied that further restrict validity, and consider additional (witness) data in the context of the block.

e
Post by Ryan Havar via bitcoin-dev
No, you are misunderstanding. The block size limit (1MB) has been replaced in favor of a block weight limit (4M weight). Bytes which must be sent to old clients are weighted at 4 units each which is what allows it to be a soft fork.
So as such, there's not two separate limits or anything.
P.S. what's up with your signature lol
​-Ryan
​
-------- Original Message --------
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA512
I have a question in reference to the increased blockspace enabled
by the segregated witness upgrade. Is this extra blockspace beyond
the legacy 1 MB limit limited to just witness data?
Cannon
PGP Fingerprint: 2BB5 15CD 66E7 4E28 45DC 6494 A5A2 2879 3F06 E832
NOTICE: ALL EMAIL CORRESPONDENCE NOT SIGNED/ENCRYPTED WITH PGP SHOULD
BE CONSIDERED POTENTIALLY FORGED, AND NOT PRIVATE.
-----BEGIN PGP SIGNATURE-----
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I+W6ny7qXt+pegLF4cYL
=YqEM
-----END PGP SIGNATURE-----
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Ryan Havar via bitcoin-dev
2018-02-18 19:04:57 UTC
Permalink
Post by Eric Voskuil via bitcoin-dev
No rule has been “replaced”.
It really has been. The code is no longer checks the size of a block, but the weight of it. For all intents and purposes the block size limits has been replaced in favor of a block weight limit. It's just been designed such that the new rule is more restrictive than the one it replaces.

Now, I'm not doubting you can argue the semantics on the difference between "replacing with a more restrictive rule" and "leaving the existing rules, but adding a new one" -- but it's uninteresting and only serves to confuse novice's like CANNON into thinking that there are two rules/spaces/limits for transactions.



​-Ryan

​

-------- Original Message --------
Post by Eric Voskuil via bitcoin-dev
As a soft fork, all preceding rules remain in effect. No rule has been “replaced”. Blocks must validate against pre-segwit rules or are invalid. Additional rules are applied that further restrict validity, and consider additional (witness) data in the context of the block.
e
Post by Ryan Havar via bitcoin-dev
No, you are misunderstanding. The block size limit (1MB) has been replaced in favor of a block weight limit (4M weight). Bytes which must be sent to old clients are weighted at 4 units each which is what allows it to be a soft fork.
So as such, there's not two separate limits or anything.
P.S. what's up with your signature lol
​-Ryan
​
-------- Original Message --------
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA512
I have a question in reference to the increased blockspace enabled
by the segregated witness upgrade. Is this extra blockspace beyond
the legacy 1 MB limit limited to just witness data?
Cannon
PGP Fingerprint: 2BB5 15CD 66E7 4E28 45DC 6494 A5A2 2879 3F06 E832
NOTICE: ALL EMAIL CORRESPONDENCE NOT SIGNED/ENCRYPTED WITH PGP SHOULD
BE CONSIDERED POTENTIALLY FORGED, AND NOT PRIVATE.
-----BEGIN PGP SIGNATURE-----
iQIcBAEBCgAGBQJaiajLAAoJEAYDai9lH2mwDbMQAKgJseZG9oOoP9WJlESFdAzm
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I+W6ny7qXt+pegLF4cYL
=YqEM
-----END PGP SIGNATURE-----
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Eric Voskuil via bitcoin-dev
2018-02-18 19:14:22 UTC
Permalink
If the new rule is more restrictive the original limit remains.

e
Post by Ryan Havar via bitcoin-dev
Post by Eric Voskuil via bitcoin-dev
No rule has been “replaced”.
It really has been. The code is no longer checks the size of a block, but the weight of it. For all intents and purposes the block size limits has been replaced in favor of a block weight limit. It's just been designed such that the new rule is more restrictive than the one it replaces.
Now, I'm not doubting you can argue the semantics on the difference between "replacing with a more restrictive rule" and "leaving the existing rules, but adding a new one" -- but it's uninteresting and only serves to confuse novice's like CANNON into thinking that there are two rules/spaces/limits for transactions.
​-Ryan
​
-------- Original Message --------
Post by Eric Voskuil via bitcoin-dev
As a soft fork, all preceding rules remain in effect. No rule has been “replaced”. Blocks must validate against pre-segwit rules or are invalid. Additional rules are applied that further restrict validity, and consider additional (witness) data in the context of the block.
e
Post by Ryan Havar via bitcoin-dev
No, you are misunderstanding. The block size limit (1MB) has been replaced in favor of a block weight limit (4M weight). Bytes which must be sent to old clients are weighted at 4 units each which is what allows it to be a soft fork.
So as such, there's not two separate limits or anything.
P.S. what's up with your signature lol
​-Ryan
​
-------- Original Message --------
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA512
I have a question in reference to the increased blockspace enabled
by the segregated witness upgrade. Is this extra blockspace beyond
the legacy 1 MB limit limited to just witness data?
Cannon
PGP Fingerprint: 2BB5 15CD 66E7 4E28 45DC 6494 A5A2 2879 3F06 E832
NOTICE: ALL EMAIL CORRESPONDENCE NOT SIGNED/ENCRYPTED WITH PGP SHOULD
BE CONSIDERED POTENTIALLY FORGED, AND NOT PRIVATE.
-----BEGIN PGP SIGNATURE-----
iQIcBAEBCgAGBQJaiajLAAoJEAYDai9lH2mwDbMQAKgJseZG9oOoP9WJlESFdAzm
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I+W6ny7qXt+pegLF4cYL
=YqEM
-----END PGP SIGNATURE-----
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Austin Maier via bitcoin-dev
2018-02-18 16:57:49 UTC
Permalink
Effectively yes. The discount on weight applies to the witness data.

On Feb 18, 2018 11:42 AM, "CANNON via bitcoin-dev" <
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA512
I have a question in reference to the increased blockspace enabled
by the segregated witness upgrade. Is this extra blockspace beyond
the legacy 1 MB limit limited to just witness data?
- --
Cannon
PGP Fingerprint: 2BB5 15CD 66E7 4E28 45DC 6494 A5A2 2879 3F06 E832
NOTICE: ALL EMAIL CORRESPONDENCE NOT SIGNED/ENCRYPTED WITH PGP SHOULD
BE CONSIDERED POTENTIALLY FORGED, AND NOT PRIVATE.
-----BEGIN PGP SIGNATURE-----
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=YqEM
-----END PGP SIGNATURE-----
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