In April 2022, Bifrost announced its support for the Polkadex crowdloan, a fully decentralized peer-to-peer orderbook-based cryptocurrency exchange for the DeFi ecosystem built on Substrate Bifrost is committed to providing liquidity to locked assets between multiple chains and establishing a liquidity bridge between heterogeneous chains. During this Polkadot crowdloan event, Bifrost will cooperate with Polkadex to help crowdloan participants access liquid derivatives of staked DOT, creating innovative solutions for users participating in the Polkadot crowdloan and competitive opportunities under the multi-chain development pattern. Polkadex have now opted to set up a two-chain system to combine the advantages of having a parachain with the flexibility of the Polkadex network. In this set-up, the Polkadex network will have all Polkadex products on top of it, as well as Thea, which means it will be connected to Ethereum (and other blockchains further down the line). The Polkadex parachain will connect Polkadex to the Polkadot network and all its parachains and their respective assets. The two networks will be joined by a Substrate to Substrate bridge (Parity technology) in the backend. Meanwhile, frontend users will not see any friction and the two networks will work as one seamless system. Bifrost's advantage is to mint fully decentralized liquid derivatives based on the Kusama Parachain. Support for the Polkadex crowdloan event will help Bifrost unlock a new opportunity with the Polkadex community to introduce the Slot Auction Liquidity Protocol (SALP), and encourage more users to participate in the Polkadex crowdloan.

版本 时间 维护人 备注 v1.0.0 2022/02/08 Yancy 需求背景

Bifrost 是一个为 Staking 提供跨链流动性的 Web3 基础设施，通过跨共识通信协议（XCM）为多链提供去中心化、可跨链的 liquid staking 服务。从2021年10月21日上线 Kusama 平行链以来总计铸造 $137M 的衍生品，所提供流动性为 $11.04M，链上持有地址 81,297 个，共完成 333,921 笔签名交易。 概览 Bifrost 公布的 2022 Roadmap，这仅是 Bifrost 平行链上线不到半年以来的一小步，如何打造一个可跨链的 StakeFi 生态并从中捕获价值，是 Bifrost 所面临的更大挑战。该跨链 StakeFi 的价值捕获可以从 Bifrost 推出的 Staking 衍生品协议 SLP (Staking Liquidity Protocol) 和插槽竞拍流动性协议 SALP (Slot Auction Liquidity Protocol) 两个 Staking 衍生品流动性协议说起。 Staking Liquidity Protocol 收益冲突 Staking Liquidity Protocol 简称 SLP，是 Bifrost 为 Polkadot 生态、Cosmos 生态以及其他桥接异构链等 Proof of stake 共识链提供的 Staking 衍生品协议。该协议将通过跨共识消息通信格式 XCM 广播来进行跨链 Stake 互操作的调用，来铸造完全去中心化的 Staking 衍生品。 由于 PoS 共识 Token 可以通过 Stake 来产生收益，必然导致部署在该生态的 DeFi、GameFi、LearnFi 等应用收益会与链底层 Staking 收益产生进行竞争的局面，这将会为 PoS 共识链的生态应用发展带来巨大挑战。随着以太坊 2.0、 Polkadot 以及 Cosmos 等高市值 PoS 共识链的兴起，该冲突所带来的生态发展问题会日益严重。

we can use polkadot app to construct call with steps as following construct call in parachain first to prepare the encoded call data here we contribute to crowdloan with ParaId as 2000 and 1 KSM as contribution, copy call data 0x6908411f070010a5d4e8 here construct xcm call in relaychain with the prepared call data since for salp.contribute we need to transfer some ksm from relaychain first so we use utility.batchAll to wrap two seperate xcm calls xcmPallet.reserveTransferAssets to transfer ksm from relaychain to bifrost

In March 2022, Bifrost announced its support for Unique Network crowdloan on Polkadot. Unique Network is a scalable blockchain for composable NFTs and advanced economies living on the Polkadot and Kusama ecosystems. During this Polkadot crowdloan event, Bifrost will help Unique Network to give crowdloan participants access to liquid derivatives of staked $DOT (for example, vsDOT). This in turn will give extremely competitive opportunities to Bifrost users to participate in the Polkadot Crowdloan and contribute to the development of Unique Network in the ecosystem. Bifrost mission is to inject liquidity to every assets locked between multiple chains and build a liquidity bridge across multiple, diverse chains. Unique Network is the NFT Chain for the Polkadot Network. Unique Network is a scalable blockchain for programmable NFTs with advanced features. Built with Substrate as a parachain on Polkadot Network, Unique unlocks unlimited potential for next-generation NFTs , truly advancing the NFTs beyond collectables.

In March 2022, Bifrost announced its support for OAK Network crowdloan on Kusama. OAK Network is an automation blockchain for recurring payments across multiple DeFi protocols. During this Kusama crowdloan event, Bifrost will support OAK Network to give crowdloan participants access to liquid derivatives of staked $DOT (for example, vsDOT). This in turn will give extremely competitive opportunities to Bifrost users to participate in the Polkadot Crowdloan and contribute to the development of OAK Network in the ecosystem. Bifrost mission is to inject liquidity to every assets locked between multiple chains and build a liquidity bridge across multiple, diverse chains. (Please describe OAK's position in the Polkadot ecosystem and what it is doing) Bifrost's unique advantage lies in their cability to mint fully decentralized liquid derivatives — like vsKSM — on the Kusama Parachain.

In March 2022, Bifrost announced its support for the Geminis Network crowdloan, a multi-chain smart contract platform bridging the application and developer ecosystem between Ethereum and Polkadot. Bifrost is committed to providing liquidity to locked assets between multiple chains and establishing a liquidity bridge between heterogeneous chains. During this Polkadot crowdloan event, Bifrost will cooperate with Geminis Network to help crowdloan participants access liquid derivatives of staked DOT, creating innovative solutions for users participating in the Polkadot crowdloan and competitive opportunities under the multi-chain development pattern. The Geminis Network is the first Polkadot parachain supported by the advanced technical stack of ParaState, a multi-chain smart contract platform bridging the application and developer ecosystem between Substrate-based blockchains like Polkadot, and Ethereum. Parachains are Layer-1 blockchains that run in parallel on Polkadot, connected to the Polkadot Relay Chain to share in the security, scalability, interoperability and governance of Polkadot. Geminis takes Ethereum compatible Dapps support to the next level on Substrate chains through WasmEdge. Developers can develop and execute high-speed smart contracts with built-in Ethereum compatibility (EVM & EWASM) and interoperability in Solidity, Vyper, and next-level programming languages like Rust, C++, and Golang. Geminis Network will take part in its first Polkadot Slot Auction number #11 from March 3 to 10, 2022. Geminis Network is using Polkadot’s crowdloan mechanism to back its bid for a parachain slot lease. Participants are required to lock up a portion of DOT for the duration of the slot lease, and in exchange will earn rewards in the Geminis native token GEM.

Run a Collator node Apply as Candidate extrinsic event Download Chain Spec Rococo chain spec: rococo-local.json Bifrost chain spec: bifrost-stage.json

Background According to the latest Bifrost project development plan. On the 19th of October, Bifrost will open Bootstrap liquidity mining. In order to add to the attraction and fun, Bifrost team wants to reward the top liquidity providers（Top LP holders）with an additional series of NFTs (Bootstrap Feature Events) for the participating users who take part in this event. Bootstrap opens the deposit：October 19th NFT Design Planning NFT Provider：RMRK NFT Name: Booster NFT Type：3 series (Series I has the highest rarity, Series II and Series III and so on)

SALP 上线 2021年9月16日，Bifrost v0.9.0 版本升级执行成功，SALP 正式上线。 Bifrost 在 Kusama 第二批卡槽竞拍中同步支持 Basilisk (HydraX)、Altair (Centrifuge)、Kintsugi (Interlay) 与 Picasso (Composable)的流动性众贷（Crowdloan），用户通过 bifrost.app 为以上四个项目投票质押会对应铸造衍生品 vsKSM 和 vsBond，解锁质押流动性。关于 SALP 深度解析详见：【SALP 深度文章】 已经在上一轮 Bifrost Crowdloan 竞拍中，通过 vsKSM Mint Drop 获得vsKSM 和 vsBond 的用户， 可以在 bifrost.app/vCrowdloan => Mine 查询到自己已拥有的 vsKSM 与 vsBond 在下次版本升级中，Bifrost 将支持 vsKSM & vsBond 的衍生品挖矿功能，所有平行链竞拍奖励将通过挖矿获取。 SALP 投票教程 FAQ

In the 2nd Kusama slot auction, Bifrost will support Heiko Finance parachain auction with SALP, release its contributors bonding liquidity. Bifrost x Heiko Finance Parallel Finance is a decentralized money market protocol that offers lending, staking, and borrowing in the Polkadot ecosystem. Similar to the relationship between Polkadot and its “canary network” Kusama, Heiko Finance is the sister network to Parallel, and the parachain that Parallel hope to launch on the Kusama blockchain. As one of strong competitors of the 2nd batch of Kusama slot auctions, Heiko will join the auctions. In order to promote the partnership of us, Bifrost wishes to boost the winning rate of Heiko’s parachain auction. All Heiko’s contributors who contribute though SALP protocol will be able to join the derivative mining with vsKSM, and receive Bifrost native token (BNC) as reward. Once Heiko wins the auction, the vsKSM will be tradable for swap between KSM and other assets effortlessly, and contributors be able to get HKO as Crowdloan reward, stay tuned. Heiko Crowdloan Rewards

Main Topic A. New Cross-Chain Approach for Paracfhain Assets, and Bifrost Mainnet Token Launch B. Asset Crosschain Transfer on Parachain C. The first parachain asset cross-chain D. New Cross-chain Cooperation in Parachains Acala Sharing One - 30' Time：12:10 pm - 12:40 pm UTC Guests：

为明确市场宣发工作流程和工作环节。拟写一份市场宣发 Work Flow。未来宣发工作将以此为基准，进行完善。 内容创作 当前 Bifrost 宣发内容上可分为版本升级、周报预告、SALP 合作、新功能上线及市场活动等。不同的内容亦对应不同的初始撰写人。 文章撰写 - Tyrone/Bonnie 快讯编辑 - Tyrone/Bonnie 英文翻译 - Bonnie 相关物料 - Yancy

Bifrost is a DeFi parachain uniquely designed to utilize derivatives models to unlock user's liquidity of their staked assets. As a foundation, Bifrost has designed and tailored a liquidity release mechanism for multiple staking scenarios and introduced the native staking derivative vToken. For further details, please refer to "New DeFi Track: How to Balance staking voting rights and rewards". Through staking derivatives, Bifrost will import a large number of high-quality assets from other public chains for the Polkadot ecosystem. Article - New DeFi Track: How to Balance staking voting rights and rewards https://medium.com/bifrost-finance/new-defi-track-how-to-balance-staking-voting-rights-and-rewards-part-i-52775b818fe3 https://medium.com/bifrost-finance/new-defi-track-how-to-balance-staking-voting-rights-and-rewards-part-ii-7c498b1436a8 What is a Slot Auction ？ A Slot Auction is a resource competition model unique to Polkadot. Polkadot is designed as a sharded network consisting of relay chains and parachains. The essence is that by letting the validator of the relay chain be responsible for verifying the blocks of the parachain, the shared security of the parachain can be realized. But in this mode, the number of Parachains that the relay chain can access is limited.

BNC/kUSD Karura Swap 的流动性激励活动 北京时间 10月21日，在 BNC/kUSD Bootstrap 结束于 #795800 区块高度后，Bootstrap 流动性添加的设定目标超额达成。持有 BNC/kUSD 的地址仍可继续参与为期 3 个月的流动性激励活动。 此次流动性激励活动奖池包括 200,000 BNC 和 25,000 KAR。这两个奖励池将在 3 个月内奖励 BNC/kUSD 流动性提供者，并设置了 70% 忠诚奖励，奖励将留在奖励池中直到活动结束。 BNC 奖池 奖励期：3个月 奖励：200000 BNC 奖励资格：在 Karura Swap 为 BNC/kUSD 提供 Liquidity

活动开启：11月8日-11月11日 矿池：Basilisk、Altair、Picasso、Bit.Country、Quartz 时间安排 11月8日 - Basilisk + Altair 11月9日 - Picasso + Bitcountry + Quartz 早鸟 Farming

活动说明： 北京时间10月19日，在 Karura 达到 #782000 区块高度开启了为期 48 小时的 BNC/kUSD Bootstrap 流动性添加激励计划。本次 Bootstrap 需要达到设定标准目标：20,000 BNC 或 200,000 kUSD 流动性。截至目前流动性目标已超额 500%+ 完成，持有 kUSD / BNC 的地址仍可继续参与，Bootstrap 结束同时将会上线 BNC/kUSD 交易对，并激活 200k BNC & 25k KAR 的流动性激励。 同时，该激励计划也将提供了丰厚的流动性激励： BNC 奖池 奖励资格：在 Karura Swap 为 BNC/kUSD 提供流动性 奖励期：3个月 奖励：200000 BNC

We are pleased that Bifrost will be supporting Picasso in the third batch of the Kusama slot auctions through the SALP protocol and releasing its contributors’ bonding liquidity. Bifrost x Picasso Composable Finance is creating hyper-liquidity infrastructure to unlock the multi-layer, and multi-chain future of Ethereum and Polkadot. Composable Finance is committed to reducing these barriers faced by DeFi creators and users through the use of its products. Picasso is the Canary Network of Composable Finance, it enables developers to participate in an instantly-available, broad DeFi ecosystem on Polkadot. Picasso provides developers access to a mainlaned parachain that they can build on, avoiding the arduous process of obtaining and maintaining their own parachain. Picasso will participate in the third batch of Kusama slot auctions as one of the strongest competitors. In an effort to assist in the Picasso crowdloan, Bifrost will partner with Picasso to offer its SALP protocol. Using the SALP protocol, users will be able to join derivatives mining with vsKSM, and receive Bifrost’s native token $BNC as a reward. This is on top of the $PICA rewards that users receive as part of the Picasso crowdloan rewards. Once Picasso wins the auction, the vsKSM will be tradable for swap between KSM and other assets effortlessly. Picasso Crowdloan Rewards

We are pleased to announce that Bifrost has partnered with Litentry, to support its upcoming Polkadot Slot Auction by SALP, generating Crowdloan derivatives and releasing its contributors' bonding liquidity. Bifrost x Litentry Litentry is a privacy-preserved DID Aggregator that serves unique functions in the Polkadot ecosystem & provides liquidity, interoperability, and consistency for the multi-chain identity data. Becoming a Parachain maximizes the efficiency of sharing identity data between Litentry & other Parachain projects. And with an aggregated cross-chain identity, blockchain projects could offer dedicated graded identity services/functions to power better Web3 services. In this case, Litentry as one of the strongest competitors in the first batch of Polkadot slot auctions, Bifrost SALP may boosting up its Crowdloan. By using SALP, contributor will be able to generate derivatives vsDOT & vsBond, hedge against the 96-week DOT bonding period. In addition, vsDOT & vsBond holders can join Litentry's derivative mining, and receive Bifrost’s native token $BNC and Litentry's native token $LIT as reward. This is on top of the $LIT rewards that users receive as part of the Litentry crowdloan rewards. Once Litentry wins the auction, the vsDOT will be tradable for swap between DOT and other assets effortlessly. Litentry Crowdloan Rewards

Bifrost 宣布支持 SORA Network 的 Kusama Crowdloan。 Bifrost 宣布支持 Kusama SORA Network Crowdloan 活动。SORA Network 既是一个去中心化中央银行概念的超国家世界经济体系，也是 Polkadot 生态系统中的一个网络。Bifrost 致力于提供多链间锁仓资产的流动性，建立异构链间的流动性桥梁。本次 Kusama 众贷活动期间，Bifrost 将与 SORA Network 合作，助力众贷参与者在 SORA Network 实现质押 KSM 的同时获得流动性衍生品的体验，为参与众贷的用户创造创新型解决方案，帮助更多 Kusama 众贷贡献者在多链化的发展格局下获得更多竞争机会。 Bifrost announced its support for the SORA Network crowdloan. SORA is both a supranational world economic system that decentralizes the concept of a central bank as well as a network in the Polkadot ecosystem. Bifrost is committed to providing liquidity to locked assets between multiple chains and establishing a liquidity bridge between heterogeneous chains. During this Kusama crowdloan event, Bifrost will cooperate with SORA to help crowdloan participants access liquid derivatives of staked $KSM, creating innovative solutions for users participating in the Kusama crowdloan and competitive opportunities under the multi-chain development pattern. Bifrost 的优势是以 Kusama 平行链为基础铸造完全去中心化的流动性衍生品，并为参与 SORA 众贷的贡献者提供丰富的衍生品使用场景，包括衍生品挖矿、流动性挖矿、Swap、跨链等，本次支持 SORA 众贷活动有有助于 Bifrost 让 SORA 社区了解到众贷衍生品协议 SALP 为质押锁仓成本提供的新机会，激励更多用户参与到 SORA 众贷中。