ð
Original date posted:2018-09-25
ð Original message:Feel free to take a look at my implementation of UTXO loading (for core
~0.16.99) here:
https://github.com/DriveNetTESTDRIVE/DriveNet/commit/60189ea9a23865180e25207ecf66f95d84f642c6
Note that this has consensus implications, and that there are bugs (some of
which are fixed in later commits to that repository)
On Tue, Sep 25, 2018 at 4:56 PM Damian Williamson via bitcoin-dev <
bitcoin-dev at lists.linuxfoundation.org> wrote:
> A fairly decent rework would be needed but it seems that the idea has
> merit initially.
>
>
> As it is now, it is not only that a utxo exists but, that the transaction
> it references and the block it is within can also be fully validated.
>
>
> So, if a utxo block set type existed then by consensus every so often a
> bunch of blocks containing just the validated utxo set to a given height,
> say 100,000 blocks below the current blockheight, and necessary header data
> could be appended onto the valid chain and nodes would be free to drop all
> preceding blocks. I suspect that many wouldn't and that even many new nodes
> would still desire to download the full blockchain but, for the use case
> you mention it would make sense.
>
>
> If done [right/wrong] it may even make Satoshi's fortune spendable.
> Something to watch out for.
> ------------------------------
> *From:* bitcoin-discuss-bounces at lists.linuxfoundation.org <
> bitcoin-discuss-bounces at lists.linuxfoundation.org> on behalf of Dave
> Scotese via bitcoin-discuss <bitcoin-discuss at lists.linuxfoundation.org>
> *Sent:* Wednesday, 26 September 2018 1:46:54 AM
> *To:* Bitcoin Discuss
> *Subject:* Re: [bitcoin-discuss] Proposal to replace full blockchain with
> recent history plus UTXO Set
>
> The image at imgur and the pastebin both reference block 542324 but the
> correct block is 542322. As the pastebin shows, the decimal and hex
> representations I gave for the block height did not match, and this is
> why. If you use the Merkle root for block 542322 instead of 542324, you'll
> be able to see the correct Game of Life play out and make the apron image.
>
> Dave.
>
> On Sun, Sep 23, 2018 at 11:38 AM Dave Scotese <dscotese at litmocracy.com>
> wrote:
>
> I thought I didn't have access to the dev list and so intended to post the
> following proposal to this discussion list, but used the wrong email
> address. Anyway, my email did get into the dev list (
> https://lists.linuxfoundation.org/pipermail/bitcoin-dev/2018-September/016420.html)
> but I'll repeat it here:
>
> I've been working on an idea that relieves full nodes of storing the
> entire blockchain. Open source software generally relies on the fact that
> "enough" people agree that it's secure. Bitcoin software works that way
> too. So if you understand enough to see that a UTXO set is valid at a
> certain block height, and there are enough other people who agree and that
> set is recognizable by humans, then we can use that UTXO set and ditch the
> blockchain that existed up to that point. It would save a lot of storage
> and make it a lot easier to run a full node.
>
> Have you reviewed the source code from which your wallets were compiled?
> At some point, we all trust third parties, but generally (at least among
> people who understand Bitcoin) they are large composite groups so that no
> small group or individual can profit from cheating.
>
> I look forward to answering any concerns and also to any offers of help.
> I used block 542324 of the Bitcoin blockchain to make a memorable
> experience using the game of life. I wrote a script for the open-source
> Game-of-Life software Golly and shared it in the paste at
> https://pastebin.com/k5Ssc0qk. It produces the image at
> https://imgur.com/a/rwIQuVz. If someone can tell me how to get a UTXO Set
> from the bitcoin client, I'll send them $50 of bitcoin. Then I could get
> the SHA256 hash of that set and try to make a recognizable checkpoint for
> the Bitcoin blockchain. If someone runs Golly and shares a video of the
> game playing out (into the apron-shaped image), I'll send them $50 of
> bitcoin too.
>
> In a few decades when the blockchain has grown to a few terabytes and the
> UTXO Set is still just a few gigabytes, I'd like to see more people start
> running full nodes without the hassle of a long wait and loads of storage
> space. That's what stops me from running one.
>
>
>
> --
> I like to provide some work at no charge to prove my value. Do you need a
> techie?
> I own Litmocracy <http://www.litmocracy.com>; and Meme Racing
> <http://www.memeracing.net>; (in alpha).
> I'm the webmaster for The Voluntaryist <http://www.voluntaryist.com>;
> which now accepts Bitcoin.
> I also code for The Dollar Vigilante <http://dollarvigilante.com/>;.
> "He ought to find it more profitable to play by the rules" - Satoshi
> Nakamoto
> _______________________________________________
> bitcoin-dev mailing list
> bitcoin-dev at lists.linuxfoundation.org
> https://lists.linuxfoundation.org/mailman/listinfo/bitcoin-dev
>
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CryptAxe [ARCHIVE] /
npub12pâŠjs309
2023-06-07 18:14:52
in reply to nevent1qâŠ4ygc
Author Public Key
npub12p7jzesdg8kxdg8rujr20znnd868fgugczkwh4cyxwa6gnxj5sxsnjs309Published at
2023-06-07 18:14:52Event JSON
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Original date posted:2018-09-25\nð Original message:Feel free to take a look at my implementation of UTXO loading (for core\n~0.16.99) here:\nhttps://github.com/DriveNetTESTDRIVE/DriveNet/commit/60189ea9a23865180e25207ecf66f95d84f642c6\n\n\nNote that this has consensus implications, and that there are bugs (some of\nwhich are fixed in later commits to that repository)\n\n\nOn Tue, Sep 25, 2018 at 4:56 PM Damian Williamson via bitcoin-dev \u003c\nbitcoin-dev at lists.linuxfoundation.org\u003e wrote:\n\n\u003e A fairly decent rework would be needed but it seems that the idea has\n\u003e merit initially.\n\u003e\n\u003e\n\u003e As it is now, it is not only that a utxo exists but, that the transaction\n\u003e it references and the block it is within can also be fully validated.\n\u003e\n\u003e\n\u003e So, if a utxo block set type existed then by consensus every so often a\n\u003e bunch of blocks containing just the validated utxo set to a given height,\n\u003e say 100,000 blocks below the current blockheight, and necessary header data\n\u003e could be appended onto the valid chain and nodes would be free to drop all\n\u003e preceding blocks. I suspect that many wouldn't and that even many new nodes\n\u003e would still desire to download the full blockchain but, for the use case\n\u003e you mention it would make sense.\n\u003e\n\u003e\n\u003e If done [right/wrong] it may even make Satoshi's fortune spendable.\n\u003e Something to watch out for.\n\u003e ------------------------------\n\u003e *From:* bitcoin-discuss-bounces at lists.linuxfoundation.org \u003c\n\u003e bitcoin-discuss-bounces at lists.linuxfoundation.org\u003e on behalf of Dave\n\u003e Scotese via bitcoin-discuss \u003cbitcoin-discuss at lists.linuxfoundation.org\u003e\n\u003e *Sent:* Wednesday, 26 September 2018 1:46:54 AM\n\u003e *To:* Bitcoin Discuss\n\u003e *Subject:* Re: [bitcoin-discuss] Proposal to replace full blockchain with\n\u003e recent history plus UTXO Set\n\u003e\n\u003e The image at imgur and the pastebin both reference block 542324 but the\n\u003e correct block is 542322. As the pastebin shows, the decimal and hex\n\u003e representations I gave for the block height did not match, and this is\n\u003e why. If you use the Merkle root for block 542322 instead of 542324, you'll\n\u003e be able to see the correct Game of Life play out and make the apron image.\n\u003e\n\u003e Dave.\n\u003e\n\u003e On Sun, Sep 23, 2018 at 11:38 AM Dave Scotese \u003cdscotese at litmocracy.com\u003e\n\u003e wrote:\n\u003e\n\u003e I thought I didn't have access to the dev list and so intended to post the\n\u003e following proposal to this discussion list, but used the wrong email\n\u003e address. Anyway, my email did get into the dev list (\n\u003e https://lists.linuxfoundation.org/pipermail/bitcoin-dev/2018-September/016420.html)\n\u003e but I'll repeat it here:\n\u003e\n\u003e I've been working on an idea that relieves full nodes of storing the\n\u003e entire blockchain. Open source software generally relies on the fact that\n\u003e \"enough\" people agree that it's secure. Bitcoin software works that way\n\u003e too. So if you understand enough to see that a UTXO set is valid at a\n\u003e certain block height, and there are enough other people who agree and that\n\u003e set is recognizable by humans, then we can use that UTXO set and ditch the\n\u003e blockchain that existed up to that point. It would save a lot of storage\n\u003e and make it a lot easier to run a full node.\n\u003e\n\u003e Have you reviewed the source code from which your wallets were compiled?\n\u003e At some point, we all trust third parties, but generally (at least among\n\u003e people who understand Bitcoin) they are large composite groups so that no\n\u003e small group or individual can profit from cheating.\n\u003e\n\u003e I look forward to answering any concerns and also to any offers of help.\n\u003e I used block 542324 of the Bitcoin blockchain to make a memorable\n\u003e experience using the game of life. I wrote a script for the open-source\n\u003e Game-of-Life software Golly and shared it in the paste at\n\u003e https://pastebin.com/k5Ssc0qk. It produces the image at\n\u003e https://imgur.com/a/rwIQuVz. If someone can tell me how to get a UTXO Set\n\u003e from the bitcoin client, I'll send them $50 of bitcoin. Then I could get\n\u003e the SHA256 hash of that set and try to make a recognizable checkpoint for\n\u003e the Bitcoin blockchain. If someone runs Golly and shares a video of the\n\u003e game playing out (into the apron-shaped image), I'll send them $50 of\n\u003e bitcoin too.\n\u003e\n\u003e In a few decades when the blockchain has grown to a few terabytes and the\n\u003e UTXO Set is still just a few gigabytes, I'd like to see more people start\n\u003e running full nodes without the hassle of a long wait and loads of storage\n\u003e space. That's what stops me from running one.\n\u003e\n\u003e\n\u003e\n\u003e --\n\u003e I like to provide some work at no charge to prove my value. Do you need a\n\u003e techie?\n\u003e I own Litmocracy \u003chttp://www.litmocracy.com\u003e and Meme Racing\n\u003e \u003chttp://www.memeracing.net\u003e (in alpha).\n\u003e I'm the webmaster for The Voluntaryist \u003chttp://www.voluntaryist.com\u003e\n\u003e which now accepts Bitcoin.\n\u003e I also code for The Dollar Vigilante \u003chttp://dollarvigilante.com/\u003e.\n\u003e \"He ought to find it more profitable to play by the rules\" - Satoshi\n\u003e Nakamoto\n\u003e _______________________________________________\n\u003e bitcoin-dev mailing list\n\u003e bitcoin-dev at lists.linuxfoundation.org\n\u003e https://lists.linuxfoundation.org/mailman/listinfo/bitcoin-dev\n\u003e\n-------------- next part --------------\nAn HTML attachment was scrubbed...\nURL: \u003chttp://lists.linuxfoundation.org/pipermail/bitcoin-dev/attachments/20180925/13bd5761/attachment.html\u003e",
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