📅 Original date posted:2015-07-11
📝 Original message:On Sat, Jul 11, 2015 at 10:24 AM, Jorge Timón <jtimon at jtimon.cc> wrote:
> I think it would be more rational for them to keep mining on top of the
> old block until they've fully validated the new block (which shouldn't take
> so long anyway), even if this slightly increases the orphan rate.
Increased orphan rate means that the network is (slightly) less secure.
If miners have a 5% orphan rate, then an attacker can launch a 51% attack
with 49% of the network.
It isn't a massive difference, but it is there.
As long as miners switch back to non-SPV mining after a timeout, SPV-mining
is safe for everyone.
The average cost to the miner from building on an invalid block is small,
as long as invalid blocks only happen rarely.
Miners still have an incentive to do full validation, so that they can
include transactions and get transaction fees.
SPV-mining is to prevent hashing hardware from having to waste power when
it isn't needed.
It may be less of a problem if (when?) electricity costs dominate hardware
capital costs.
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Tier Nolan [ARCHIVE] /
npub1g6…sl5wd
2023-06-07 15:41:56
in reply to nevent1q…mvtz
Author Public Key
npub1g6vxlp4e0nyhs2dqxxcryztyf5f5hyuaq93nw4r87zcnv0sdsa0qqsl5wdPublished at
2023-06-07 15:41:56Event JSON
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"content": "📅 Original date posted:2015-07-11\n📝 Original message:On Sat, Jul 11, 2015 at 10:24 AM, Jorge Timón \u003cjtimon at jtimon.cc\u003e wrote:\n\n\u003e I think it would be more rational for them to keep mining on top of the\n\u003e old block until they've fully validated the new block (which shouldn't take\n\u003e so long anyway), even if this slightly increases the orphan rate.\n\n\nIncreased orphan rate means that the network is (slightly) less secure.\n\nIf miners have a 5% orphan rate, then an attacker can launch a 51% attack\nwith 49% of the network.\n\nIt isn't a massive difference, but it is there.\n\nAs long as miners switch back to non-SPV mining after a timeout, SPV-mining\nis safe for everyone.\n\nThe average cost to the miner from building on an invalid block is small,\nas long as invalid blocks only happen rarely.\n\nMiners still have an incentive to do full validation, so that they can\ninclude transactions and get transaction fees.\n\nSPV-mining is to prevent hashing hardware from having to waste power when\nit isn't needed.\n\nIt may be less of a problem if (when?) electricity costs dominate hardware\ncapital costs.\n-------------- next part --------------\nAn HTML attachment was scrubbed...\nURL: \u003chttp://lists.linuxfoundation.org/pipermail/bitcoin-dev/attachments/20150711/eda24489/attachment.html\u003e",
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