# The Graph Core Devs Call #15 **URL:** \ **Category:** Community Calls\ **Tags:** core-devs-call\ **Created:** [August 30, 2022, 12:28pm UTC](https://forum.thegraph.com/t/the-graph-core-devs-call-15/3536 "2022-08-30T12:28:14Z")\ **Posts on this page:** 4\ **Page:** 1
**Author:** ![Pedro](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.thegraph.com/pedro/32/658_2.png) [@Pedro](https://forum.thegraph.com/u/Pedro)\ **Post date:** [August 30, 2022, 12:28pm UTC](https://forum.thegraph.com/t/the-graph-core-devs-call-15/3536/1 "2022-08-30T12:28:14Z")
![The-Graph-Townhall-1@2x](https://us1.discourse-cdn.com/flex020/uploads/thegraph1/original/1X/b11039e94bed553dddc03a27c55d53e6a376ff02.jpeg) ## ℹ The 15th Core R&D call is happening this Thursday (2022-08-31T23:00:00Z). This is a recurring call where different contributors from various teams gather around to discuss major updates from different working groups and brainstorm around active R&D tracks. 📅 Please subscribe to The Graph Foundation’s [Ecosystem Calendar](https://calendar.google.com/calendar/u/0/embed?src=info@thegraph.foundation) so you don’t miss any of the upcoming calls! * * * ### 📓 Agenda: - **[The Graph Foundation]** - MIPs Program Overview - **[Data & APIs WG]** - Graph Node and Graph Client updates - Building a Cosmos Subgraph and other Tendermint-based Chains - Update on Substreams in Subgraphs and DevEx - **[Network and Protocol Operations WG]** - Introduction to Graphcast - The Graph’s Gossip Network 📺 The recording will be uploaded [here](https://www.youtube.com/watch?v=_fx_p4rEZAY&t=2115s). * * * ### 🚀 The Graph Core R&D Workspace As The Graph is being built in public and in a decentralized way, we’ve put together a new **[publicly accessible The Graph Core R&D Workspace](https://thegraphfoundation.notion.site/The-Graph-Core-R-D-5dca927e67eb4e459539f5bd6d0a7fb8)**. You can resort to this page to follow along with each working group’s progress on significant workstreams, access meeting notes, and recordings. * * * ### 🔮 Roadmap The Graph Foundation has recently released a blog post presenting the [Core R&D roadmap](https://forum.thegraph.com/t/the-graph-core-r-d-roadmap/3205). Please feel free to reach out if you believe you can contribute to any of the listed workstreams! * * * See you this Thursday! 🧑‍🚀 ---
**Author:** ![AxiomaticAardvark](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.thegraph.com/axiomaticaardvark/32/2882_2.png) [@AxiomaticAardvark](https://forum.thegraph.com/u/AxiomaticAardvark)\ **Post date:** [September 2, 2022, 1:05pm UTC](https://forum.thegraph.com/t/the-graph-core-devs-call-15/3536/2 "2022-09-02T13:05:18Z")
Hey everyone! Thanks for all the feedback, comments and questions on the Core Dev Call yesterday. As promised, here’s a recording of a demo of the proof of concept, recorded about a month ago - the “frontend”, workflow and logs are more or less the same since then, but we’ve also added a bunch of new features that will be laid out in the [README](https://github.com/graphops/gossip-client-poc#readme) of the proof of concept repo soon. We will record another demo once the proof of concept is finished, where we will dive deeper into _how_ things work. ---
**Author:** ![Ethan](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.thegraph.com/ethan/32/2512_2.png) [@Ethan](https://forum.thegraph.com/u/Ethan)\ **Post date:** [September 2, 2022, 5:53pm UTC](https://forum.thegraph.com/t/the-graph-core-devs-call-15/3536/3 "2022-09-02T17:53:20Z")
[![](https://us1.discourse-cdn.com/flex020/uploads/thegraph1/original/2X/8/8d1607fefc753459efe2a1bb2e349bfe5320dfed.jpeg "The Graph | Core Devs Call #15 - September 1st 2022") ](https://www.youtube.com/watch?v=m_8uPPuF9A8) ![CORE DEV The Graph's Core Devs Meeting](https://us1.discourse-cdn.com/flex020/uploads/thegraph1/original/2X/7/73329efc362436ec7e020af5941a811317a01492.png) # Summary In The Graph’s Core Devs Call #15 we learn about the MIPs program, view demos on Graphcast, @Live Queries and Building Subgraphs for Tendermint chains and receive a development update on Substreams. Topics Include: - Migration Infrastructure Providers Program Overview - Intro to Graphcast - @Live Queries w/ Dotan - Building Subgraphs for Tendermint Chains w/ Bartosz - Update on Substreams Detailed notes regarding each topic with timestamps can be found below. # MIPs (Migration Infrastructure Providers) Program Overview (03:05) ### **Focus** The focus of the MIPs program is to bootstrap Indexers to support new chains on the decentralized network, allowing for multi-chain subgraphs to migrate. ### **Incentives** 50M GRT for Indexers (0.5% GRT supply) 25M GRT for subgraph migration grants (0.25% GRT supply) ### **Breakdown for Distribution** Chain allocation will be defined mid-program. GRT will be allocated towards bootstrapping specific chains for the program. ### **Criteria for Performance** The core objectives of the program are to test network infrastructure, expand the decentralized network to new chains and support the migration of subgraphs. Indexers will participate in a gamified system of scoring and a leaderboard will be used to distribute awards at the end of each cycle. Points will be gained based on an Indexers participation in three core areas: - Subgraph Coverage - Quality of Service - Community Support ### **Chains** Each new chain will be announced with 2 weeks’ notice to allow for Indexers to prepare for the chain. Gnosis chain is the first chain announced to be part of the program. ### **Indexer Journey** ![Indexer Journey](https://us1.discourse-cdn.com/flex020/uploads/thegraph1/original/2X/4/41d60af1ab029f9b6b05b1eb369924c39e99fcb1.png) - [Become an Indexer IOH](https://www.youtube.com/watch?v=QSV8-6hpHrA) - [Becoming an Indexer - GRTiQ](https://www.grtiq.com/grtiq-podcast-79-becoming-an-indexer-at-the-graph/) Lastly, [check out The Graph’s official blog post](https://thegraph.com/blog/mips-multi-chain-indexing-incentivized-program) covering the MIPs program. # Intro to Graphcast (11:20) Graphcast | The Graph’s Gossip Nework Petko, a team member at GraphOps, gave a presentation on Graphcast. Graphcast is a decentralized, distributed peer-to-peer communication tool that allows Indexers across the decentralized network to exchange information in real time. Graphcast is an optional off-chain layer, which allows Indexers to exchange P2P messages without paying extravagant gas costs. There is work being done to ensure message integrity and can be read more about [in the GRC](https://forum.thegraph.com/t/grc-001-graphcast-a-gossip-network-for-indexers/3544). [https://streamable.com/6daviz](https://streamable.com/6daviz) ### **What does Graphcast unlock?** - New forms of healthy communication among Indexers - Easier experience for tooling developers - Democratizing access to underlying data ### **Concerns** - No strong guarantees of message integrity - Difficulties in testing Radios/ a network of radios would need to be deployed to test messages passed between them - Lack of multi-language support ### **Use Cases** - Conducting auctions for warp syncing purposes - Self-reporting on query analytics - Self-reporting on Indexing analytics - Real-time cross checking of subgraph data integrity - AutoAgora cross-indexer signals/negotiations for improved automated query pricing ### **Tech Stack** Waku v2 protocol for decentralized messaging features (open to discussion for alternatives) TypeScript SDK that abstracts over Waku, provides identity resolution which improves message integrity and exposes a rich interface for building Radios The project is open Source and built publicy. ### **Next Steps** - Collect feedback from Indexers - Publish Graphcast SD # @Live Queries (24:00) Dotan Simha, of The Guild core development team, presented on their work to introduce @live queries into the GraphQL interface. @live queries allow dApp developers query real-time data from their subgraphs. [A GIP was recently introduced on The Graph’s forum](https://forum.thegraph.com/t/gip-0035-graphql-live-queries/3432). View Dotan’s demo below! [https://streamable.com/pvscvh](https://streamable.com/pvscvh) # Building Subgraphs for Tendermint Chains (32:13) The Figment Core Development Team has been working on integrating the Cosmos Ecosystem with The Graph. Bartosz Pienkowski presented on how to build subgraphs for the Cosmos Ecosystem. [https://streamable.com/zjtyqs](https://streamable.com/zjtyqs) # Substreams Development Update (42:05) ### **Substreams Core** - Teams internally and externally are experimenting with Substreams. - In draft: helpers for simpler event extraction ### **Substreams in Subgraphs** [GIP Published](https://forum.thegraph.com/t/substreams-into-subgraphs-a-simple-integration/3542) ### Initial simple implementation in Graph Node - Imports a Substeams package - Persists the data in Postgres, queryable via the usual subgraph API ### **Continuing Discussion** - Validating the Initial Graph Node Integration - Importing more complex Substreams - AMMs - Ensuring correctness during live operation, how does the system react when things fail or connection is lost - Testing determinism, do Substreams output the same data when utilized by alternate Indexers? - Performance benchmarking - Scalability benchmarking ### **Tooling to Builld and Deploy** - Graph CLI will need an update for the Substream data source - Could take a more rust native approach via a Cargo plugin ### **Schema & Graph out Definition** - The schema has information that isn’t relevant to substreams - Relationships between entities - Derived fields - Interfaces - The schema might only be a subset of output - Some entities might only be relevant internally ### **Getting Involved** - Try substreams! - [Review the GIP in the forum!](https://forum.thegraph.com/t/substreams-into-subgraphs-a-simple-integration/3542) - Get in touch with any feedback on Discord, The Graph Forum or GitHub. Documentation can be found at substreams.streamingfast.io # Stay Tuned! Join us next month for Core R&D call #16! Keep up to date by joining discussions in the [forum](http://forum.thegraph.com/), following The Graph on [Twitter](https://twitter.com/graphprotocol) or joining the [Discord](https://discord.com/invite/vtvv7FP) server. https://calendar.google.com/calendar/u/0/embed?src=info@thegraph.foundation&rm=minimal ###### Notes will be updated with YouTube video when available. ---
**Author:** ![Pedro](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.thegraph.com/pedro/32/658_2.png) [@Pedro](https://forum.thegraph.com/u/Pedro)\ **Post date:** [September 14, 2022, 9:55am UTC](https://forum.thegraph.com/t/the-graph-core-devs-call-15/3536/4 "2022-09-14T09:55:40Z")
Hey folks! Adding a reference to Chris’ response, from GraphOps, to Oliver’s question regarding regulation and price fixing risks associated with GraphCast: [GRC-001: Graphcast - a Gossip Network for Indexers - #6 by chris](https://forum.thegraph.com/t/grc-001-graphcast-a-gossip-network-for-indexers/3544/6)