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Nadav Kohen 0977340cae Tuesday July 6 2021 Meeting (#169 )

* Added july 6 meeting doc

* Added Ivan to sync list

* Added longer-term meeting items

* Added a few topics

* Added meeting notes

2021-07-27 18:04:48 -06:00

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July 6th (7 PM CST)/6th (9 AM JST) Meeting 2021

Individual Updates (Sync)

#Query(Nadav)
- Optimization
- non-equal num-digits
#Query(Tibo)
- Implementation stuff
- Ordering of outcomes
#Query(Lloyd)
- Implementation of oracle stuff
- Testing bitcoin-s implementation
#Query(Chris)
- Executing DLCs on bitcoin-s with lots of people
#Query(Antoine)
- Review on ...63
#Query(Jesse)
- Working on FROST
  - Python done!
  - Distributed key generation nearly done
#Query(Matt)
- Small improvements to JS impl
- Debugging atomic finance product
- DLC close soon
#Query(Ben)
- bitcoin-s wallet & GUI implementation
- Executing and testing DLCs on bitcoin-s
#Query(Ivan!)
- Learning about DLCs
- Bitcoin-s GUI work
#Query(Dillion!)
- Read DLC specs
- DLC validation in node-dlc
#Query(all)

Implementation Updates (Sync)

bitcoin-s
- All DLC logic in specs except
  - Missing Signed outcomes
  - Off-by-one support not yet there
  - Open PRs for Disjoint Union and Hyperbola/general payout curves
- Optimized
- JS stuff nearly there
rust-dlc
- All DLC logic in specs
- Optimizations not finished
- Needs to update secp256k1-zkp version
- Serialization still up in air
- Integration tests with bitcoind
- Still needs a persistence layer and network layer
- Development and Reviewers wanted!
- Most development is in PRs
atomic finance
- node-dlc
  - Logic for message serialization and structure
  - Chain monitoring
- chainabstractionlayer-finance
  - For building a wallet
  - single-oralce support
  - disjoint union support coming
- cfd-dlc is still currently the backend
  - Added serial id support recently as it was needed
others?
- Binary outcome DLC implementation from Lloyd
  - oracle: olivia
  - wallet: bweet
    - Binary tweet

Specification Writing

#Status_Update_Interrupt

Multi-oracle support merged!
- https://github.com/discreetlogcontracts/dlcspecs/pull/128
Hyperbola curve piece support merged!
- https://github.com/discreetlogcontracts/dlcspecs/pull/144
If anyone is interested it would be nice to document loss-of-fund vectors
- https://github.com/discreetlogcontracts/dlcspecs/issues/132
- Being robust against random failures?
  - #Discussion
  - Nothing in specification about what should be backed up when before sending messages
  - In LN they also have the channel-reestablish message
ECDSA Adaptor Signature Specification merged!
- https://github.com/discreetlogcontracts/dlcspecs/pull/114
Draft Updating P2P message serialization to include sub-types, optional fields, tlv streams
- https://github.com/discreetlogcontracts/dlcspecs/pull/163
- #Discussion
  - Every tiny thing had a big type associated with it and this will simplify things and make them more clear and extensible, current LN is too restrictive
  - Open call for review!
- Also adds protocol versioning to offer message
  - Anyone have new thoughts on this?
  - #Discussion
Mutual Close Message
- https://github.com/discreetlogcontracts/dlcspecs/issues/161
- Current protocol has no cooperative close
  - Could send PSBT, but this isn't ideal
- This is for after a funding tx is confirmed
  - CET locktime hasn't been reached
- Extra input to mutual close to avoid free option, and in the future we will introduce revocation mechanism
Multi-oracle support for oracles with different num_digits algorithm proposed
- https://github.com/discreetlogcontracts/dlcspecs/issues/168
- Feedback welcome
- Implementation coming soon
bLIPs
- E.g. premium_fee for fee-bumping, TLV extensions, etc.
- #Discussion
P2P discussion (TOR?)
- #Discussion
Time to start thinking about Taproot!
- #Discussion
Path to Lightning
- #Discussion

Oracle Specifications

#Status_Update

Oracle JSON format
- https://github.com/discreetlogcontracts/dlcspecs/pull/150
- Thoughts on merging?
  - Let's leave it a PR for now, its ongoing
Client-side oracle validation specification merged!
- https://github.com/discreetlogcontracts/dlcspecs/pull/120
Breaking Oracle Changes for v0
- https://github.com/discreetlogcontracts/dlcspecs/pull/167
- Splits up oracle key into announcement and attestation key
- Adds oracle_keys message which is static and separate from announcements
- Adds nonce proof-of-knowledge signatures to announcements
- Adds option for ranged timestamps on oracle events

Oracle Attestation Research