Bitcoin Optech newsletter #256 is here:
- summarizes a discussion about extending BOLT11 invoices to request two payments
- includes 'Waiting for confirmation #6: Policy Consistency' from our series about policies for transaction relay and mempool inclusion
- summarizes changes to services/client software
- add Submarine swaps and Just-In-Time (JIT) channels topics
- Optech Newsletter #256 Recap on Twitter Spaces
https://bitcoinops.org/en/newsletters/2023/06/21/
Thomas Voegtlin posted to the Lightning-Dev mailing list to suggest BOLT11 invoices be extended to optionally allow a receiver to request two separate payments from a spender, with each payment having a separate secret and amount...
Waiting for confirmation #6: Policy Consistency
Last week’s introduced policy, a set of transaction validation rules applied in addition to consensus rules. These rules are not applied to transactions in blocks, so a node can still stay in consensus even if its policy differs from that of its peers. Just like a node operator may decide to not participate in transaction relay, they are also free to choose any policy, up to none at all...
https://bitcoinops.org/en/newsletters/2023/06/21/#waiting-for-confirmation-6-policy-consistency
Changes to services and client software:
- Greenlight libraries open sourced
- Tapscript debugger Tapsim
- Bitcoin Keeper 1.0.4 announced
- Lightning wallet EttaWallet announced
- zkSNARK-based block header sync PoC announced
- lnprototest v0.0.4 released
https://bitcoinops.org/en/newsletters/2023/06/21/#changes-to-services-and-client-software
Submarine swaps are trust-minimized atomic swaps of offchain bitcoins for onchain bitcoins. A payment secured by an HTLC is routed over LN to a service provider who creates an onchain output paying the same HTLC...
https://bitcoinops.org/en/topics/submarine-swaps/
JIT channels are virtual LN channels hosted by a service provider. When the first payment to the channel is received, the service provider creates a funding transaction and adds the payment to it, creating a normal channel...
https://bitcoinops.org/en/topics/jit-channels/
Bitcoin Optech will be hosting an audio recap discussion of this newsletter with special guest Thomas Voegtlin on Twitter Spaces Thursday at 15:00 UTC. Join us to discuss or ask questions!