KeyChain establishes a new standard of transparency, interoperability, and fairness — ensuring that users always understand what they’re paying for and why

Joined December 2025
🚀 KeyChain / LeaseFi Platform UI Preview — Live Most housing platforms stop at listings. We’re building the reputation, discovery, and transparency infrastructure that actually changes the game for tenants and landlords. This early preview (still very much in progress) shows: • User profile system • Portable tenant reputation / score infrastructure • Property recommendations that surface relevant listings as lease expiration approaches • Clean, intuitive help & support page designed for real-world onboarding Built on @Casper_Network and powered by $BIG — with the same focus on compliance, transparency, and long-term utility we’ve maintained for 9+ months. Watch the full preview and let us know: Which piece of this infrastructure do you see delivering the biggest real-world impact for housing? 👇 #ThinkBIG #Casper #RWA #RealEstateTokenization
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Big thanks @8Mill2Day for the shoutout! 🙌 LeaseFi is officially in the @Casper_Network Buildathon. Taking a quick breather then full speed ahead on bringing autonomous on-chain leasing to life. #ThinkBIG #RWA
Replying to @KeyChain_BIG
@KeyChain_BIG LeaseFi application has been submitted and accepted into the @Casper_Network Buildathon. Excited about what the future will bring. #ThinkBIG #RWA
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BIG Token retweeted
Replying to @KeyChain_BIG
@KeyChain_BIG is building the furniture of RWA on the @Casper_Network using the @trex_network standard.
Great insight by our friends at @trex_network, who are building the true rails of the on-chain RWA economy - rails which @Casper_Network is proud to be a launch partner of, and @ApexGlobalGroup has committed to run at least $100B of assets on by next year.
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🚀 LeaseFi Weekly Update — Steady execution continues This week was all about hardening the product and building user trust: • Frontend deployments cleaned up with fixes and improvements • Full email change + verification flows now live (frontend + backend) • Added safeguards for media uploads • Started implementing email + password login as a smooth option alongside wallet connect • Smart contract progress on rent routing, escrow workflows, identity infrastructure, multi-wallet support, and recovery flows We’re also reviewing the Casper Agentic Buildathon to see if it’s a good fit for LeaseFi. Focused on maturity, real utility for landlords & tenants, and staying aligned with where things are headed. Building with discipline. More to come. #ThinkBIG #LeaseFi #Casper
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🚀 KeyChain / LeaseFi Update — Landlord Tools Taking Shape This week we shipped a clean new video walking through how landlords can easily add properties in the LeaseFi web app. We focused on practical improvements: • A solid landlord dashboard with fixed header and straightforward navigation • Overview page giving quick visibility into properties, leases, revenue, overdue payments, and deadlines • Guided 4-step wizard for creating properties — much smoother onboarding • Card-based properties page with search, filters, and sorting Backend and smart contract work continues steadily: better media handling, testing, docs, transactional emails, plus progress on rent routing, escrow, and tighter Lease/Escrow integration. Building with discipline. Real utility, step by step. What part of the landlord experience matters most to you? 👇 #ThinkBIG #LeaseFi #Casper #RWA
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🚀 BIG Token Weekly Update – KeyChain Steady Progress on Casper Hey community, Another focused week of infrastructure development across the KeyChain / LeaseFi ecosystem. We continue building with the same discipline outlined in our v4 whitepaper: compliance-first design, property tokenization, and long-term utility on @Casper_Network. Here’s what shipped: #ThinkBIG #Casper #RWA
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Frontend • Improved search and preference functionality • Updated filters logic and related user flows • Added new disclaimer/user guidance components for improved transparency and compliance visibility • Verified latest deployment updates 4/5
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As always, our emphasis remains on infrastructure, transparency, and scalable real-world utility — consistent execution over shortcuts. ~10 months into disciplined building on Casper. What part of this week’s progress stands out to you most (property tokenization milestones, UX improvements, or something else)? Drop your thoughts below 👇 — we value community feedback as we move forward. #ThinkBIG #Casper #RWA #RealEstateTokenization 5/5
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🚀 BIG Token Weekly Update – KeyChain Steady Progress on Casper Hey community, Another productive week of focused development across the KeyChain ecosystem. We’re prioritizing robust infrastructure, user experience, and compliance foundations to support scalable tokenized real estate on @Casper_Network. Here’s the latest: Frontend • Continued enhancements to the dashboard experience and user profile systems • Integrated backend-connected profile management with synchronization flows • Refined property recommendation logic and overall dashboard usability • Added new support/help page functionality • Improved pricing input workflows and UI responsiveness across the platform Backend • Expanded user profile management infrastructure • Implemented secure profile update capabilities, including session and device management controls • Strengthened backend architecture for media and profile handling • Continued refining API documentation and platform stability Smart Contracts • Made major progress on Property Registry and Compliance Policy contracts • Advanced ERC-3643 aligned compliance infrastructure • Improved contract organization and maintainability in preparation for future audits and reviews • Updated project documentation and compliance rule handling • Began foundational development of the Property Fraction Token contract, including core logic and permission structures We’re preparing an early preview of the KeyChain / LeaseFi platform UI in the coming days, with initial screenshots and interface details to follow. As always, our emphasis remains on infrastructure, compliance, scalability, and long-term utility. @keychain_big ~9+ months into building with discipline on Casper — consistent execution over shortcuts. Real progress toward sustainable RWA utility in 2026 and beyond. What aspect of the platform are you most looking forward to seeing in the upcoming preview? Drop your thoughts below 👇 — we’re always interested in community feedback. #ThinkBIG #Casper #RWA #RealEstateTokenization
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🚀 BIG Token Weekly Update – KeyChain Keeps Building on Casper! Hey community! Another week of steady, focused progress as we push toward real utility in tokenized real estate. Transparency and solid infrastructure first — always. Here’s what shipped: Frontend • Registration & sign-in now fully live with the backend + cspr.click • Dashboard upgraded with new filters, search, and a fresh Properties tab showing all your related assets • Lease notifications, actions, and expiration logic added (demo ready 🔥) Backend • Authentication system hardened and optimized for smooth frontend integration • Wallet login now captures full user profile/role on first connect + multi-wallet support per account • Secure logout flow with server-side token revocation • Expanded integration tests for the full session lifecycle Smart Contracts • ERC-7943 integration completed into the CEP-95 NFT contract! Every investment now mints a dedicated lease NFT, unlocking sub-leasing functionality (when the landlord approves). Huge step for flexibility on-chain. • ERC-3643 compliance suite officially kicked off (investor-side protections in motion). • Delivered two core registries: Investor Registry + Property Registry. These now track ownership records, property lifecycle/status, and set the foundation for fractional ownership. Next up: Property Tokens and the Rent Distributor contract — automated payouts based on ownership percentages are coming! We’re ~9 months deep into building something sustainable with real compliance, security, and utility on Casper. No hype, just progress. What’s the feature you’re most excited to see live — lease NFTs, fractional ownership, or automated rents? Drop a comment below 👇 and let’s discuss! #ThinkBIG #Casper #RWA #RealEstateTokenization
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Weekly Update – Strengthening Compliance & Security Foundations on Casper Frontend • Validated full ICO page functionality with thorough end-to-end testing • Researched CSPR.click integration for smooth user authentication (social login + self-custodial experience) • Analyzed potential partnership platforms to expand our ecosystem Contracts • Continued integration of ERC-7943 into the NFT contract for robust RWA compliance • Added advanced security & regulatory features: – Whitelisting for minting and transfers (enables verified/KYC users) – Asset freezing to restrict transfers during legal disputes – Forced transfers by authorized admins (supports seizures, wallet recovery, and regulatory compliance) – Wrapped transfer logic to automatically enforce whitelisting and freeze checks – Switched to the Access Controls module for clear separation of duties (e.g., dedicated roles for freezing, whitelisting, minting/burning) We’re also actively coordinating with Halborn on our upcoming security audit. To maximize effectiveness and cost efficiency, we’ve decided to bundle in three additional contracts the marketing contracts for real estate buying/selling and two metadata contracts ported from EVM — before the review. This avoids duplicate work and ensures everything is audited together. As a result, we’re adjusting our timeline and expect the ICO to move forward in approximately three weeks once these integrations and the audit scope are fully aligned. In the meantime, testnet activity continues smoothly. Want to experiment with transactions? Grab test CSPR here: testnet.cspr.live/tools/fauc… Quick note: The recent Vercel incident had no impact on us — our code isn’t hosted there, and we’re only using test keys. Everything remains normal on our end. These deliberate steps are making BIG Token one of the most compliance-ready and audit-conscious projects building real-world asset tokenization on Casper. Quality over speed. How do you feel about projects that take the extra time for proper security and compliance? Worth it, or would you prefer faster launches? Let us know your thoughts 👇 #BIGToken #CasperNetwork #RWA #LeaseFi #SmartContractAudit #Halborn
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BIG Token retweeted
Working with @HalbornSecurity shows a serious credibility signal. Keep up the good work. Stay loyal to utility 🤞
🚀 BIG Token Weekly Update We’re making solid progress across the stack — and we’re now roughly 1–2 weeks away from sending the initial code to @HalbornSecurity for the 3rd-party audit and getting their estimate. Infrastructure first. Precision over hype. Real utility building on @Casper_Network. #BIGToken #CasperNetwork #Web3 #RWA
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🚀 BIG Token Weekly Update We’re making solid progress across the stack — and we’re now roughly 1–2 weeks away from sending the initial code to @HalbornSecurity for the 3rd-party audit and getting their estimate. Infrastructure first. Precision over hype. Real utility building on @Casper_Network. #BIGToken #CasperNetwork #Web3 #RWA
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Backend • Continued building the blockchain indexer service • Fixed data correctness issues in release schedule calculations, reward snapshot monotonicity, and ICO schedule filtering by active timestamp • Strengthened security by masking database credentials in scripts and adding auth middleware to protected routes • Expanded integration test coverage for ICO progress capping, staking idempotency, unbonding, and earnings decimal precision 3/4
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Contracts • Deployed remaining contracts: Lease, Escrow, NFT, Roles • Researched and responded to mockup phased architecture plan • Fixed bug where staking and vesting data were getting out of sync The foundation keeps getting stronger every week. More updates soon 👀 What are you most excited to see next? Drop your thoughts below! #BIGToken #CasperNetwork #LeaseFi #RWA 4/4
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🚀 BIG Token Weekly Update Frontend: - Major ICO page UI improvements + new components for unlocked tokens (claiming & unbonding) - Updated main dashboard routing - Started migration of auth & registration to wallet-based flow Backend: - Continued building the blockchain indexer service - Hardened vesting & staking features with new API endpoints - Corrected reward calculations & aligned schemas with latest contract changes - Improved data consistency and idempotency - Expanded integration test coverage for staking, vesting & auth flows Contracts: - Tested contract upgrading on Casper network - Preparing deployment of new contracts: Escrow, Lease, NFT, Roles - Improved event emission for accurate reward data on frontend - Fixed & strengthened all tests to ensure full functionality is preserved Steady progress across the stack. The foundation is getting stronger every week. More updates soon 👀 #BIGToken #CasperNetwork #Web3
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🚀 Milestone 2 Locked In: LeaseFi Core Infrastructure Delivered! 📷Huge progress on LeaseFi (powered by $BIG on @Casper_Network): Milestone 2 is officially complete! All core components built, rigorously tested, and fully integrated—delivering transparent, end-to-end RWA infrastructure with full ownership and battle-tested connectivity. Precision over hype, always. 1/4
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The full ICO experience page is now operational on testnet: smooth, integrated, and user-friendly. This milestone nails the foundation for fair, interoperable token mechanics and long-term alignment. Grateful for the collaboration and trust—building something solid. 3/4
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🚀Next phase: Marketplace module + expanding the full application. Audit discussions kicking off soon, decentralized hosting explorations underway, and more updates coming. Private sale testnet is live and ready for you: leasefi.vercel.app/icoDive in, test the flows (spend or receive toggles, check vesting/staking), explore the connected features, and share your thoughts—your feedback directly fuels the roadmap. Infrastructure first. Real utility building on@Casper_Network. Think #BIG #LeaseFi #CasperNetwork #RWA 4/4
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