Here is a pretty comprehensive write-up on how to make a DLC: https://medium.com/crypto-garage/p2p-protocol-based-crypto-asset-derivative-settled-in-bitcoin-on-discreet-log-contracts-13c823448ae8 I believe they also put the txid and such of their CET so you can find the actual script in a block explorer.
Also this is always great in case you haven't read it: https://adiabat.github.io/dlc.pdf Best, Nadav On Wed, Jul 17, 2019 at 1:16 PM Lloyd Fournier <lloyd.fo...@gmail.com> wrote: > Hi Nadav, > > Interesting. Is there a writeup anywhere of this CET idea that I can add > to my reading list. I feel like I am missing some background. > > LL > > On Thu, Jul 18, 2019 at 2:56 AM Nadav Kohen <na...@suredbits.com> wrote: > >> Hi Lloyd, >> >> Glad you like it :) And to address your concern, I think that although >> certainly it is possible for oracles to sell options contracts, it is also >> possible to have a more decentralized setup with normal DLC oracles (that >> can be used for all kinds of things as all they do is schnorr sign messages >> with pre-commited R values), and then have the CETs be 3-of-3 multisig >> outputs. In this way the oracle is still not learning about the contract, >> just like normal DLCs. >> >> Best, >> Nadav >> >> On Wed, Jul 17, 2019 at 11:23 AM Lloyd Fournier <lloyd.fo...@gmail.com> >> wrote: >> >>> Hi Nadav, >>> >>> This is cool idea. I always imagined oracles would either give their DLC >>> signatures away for free or work via a subscription model. >>> >>> The downside to this proposal is that the seller of the signature knows >>> which signature they're selling and therefore learns what kind of contract >>> the buyer must be involved in. >>> >>> LL >>> >>> >>> On Thu, Jul 18, 2019 at 1:37 AM Nadav Kohen <na...@suredbits.com> wrote: >>> >>>> Hi All, >>>> >>>> I recently posted a proposal here for a scheme through which a trusted >>>> data provider can utilize the Lightning Network to privately sell data >>>> where data is received atomically with purchase. >>>> >>>> I've more recently been thinking about situations where a party, that >>>> is *not* trusted, is attempting to sell its signature to a known message. >>>> One example of a situation where this would be useful is if someone is >>>> trying to offer a DLC-like Option contract where they are essentially >>>> collateralizing themselves in a funding transaction and then selling their >>>> signatures to Contract Execution Transactions (CETs). In this example, we >>>> must ensure that the buyer of the signatures pays if and only if they >>>> receive valid signatures for the CETs which are known. >>>> >>>> I believe that this is achievable in a relatively straightforward way >>>> if we were to use ZmnSCPxj's proposed payment points with scalars (as >>>> opposed to payment hashes with pre-images). The (Schnorr) signature seller >>>> could give the buyer their one-time public key, `R = k*G`, through which >>>> the buyer could compute the payment point whose scalar is the seller's >>>> signature: `sig*G = R + h(m, R)*A` where `A` is the seller's public key. >>>> Using this value as the payment point, the buyer could be assured that they >>>> pay if and only if they receive `sig` from the seller, where `sig` is the >>>> desired valid signature of `m`! >>>> >>>> Best, >>>> Nadav >>>> _______________________________________________ >>>> Lightning-dev mailing list >>>> Lightning-dev@lists.linuxfoundation.org >>>> https://lists.linuxfoundation.org/mailman/listinfo/lightning-dev >>>> >>>
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