7Block Labs
Community Development

ByAUJay

Short version: Retention kicks in when your community's building blocks are set up for trust, speed, and long-term value--right at the protocol level. We create these building blocks (like AA wallets, ZK attestations, mini-apps/open actions, and token-bound accounts) to boost measurable growth in WAU/MAU, K-factor, and LTV:CAC--without relying on unstable "growth hacks."

The “Community Architect”: Designing Social Systems for Retention


The specific headache product teams are living with

  • It seems like your Farcaster Frames spec has changed three times while you were deep in your sprint. Plus, those third-party Frame Chain/APIs you were relying on are set to sunset on December 17, 2025, and you're in the middle of refactoring to Mini Apps--all while the launch clock is ticking down. Check it out here: (frame.syndicate.io).
  • Lens has made a big move too! They’ve shifted from Polygon + Momoka to Lens Chain on mainnet, using the ZKsync stack and Avail DA, which means a hefty 125GB migration. Your team really needs to get a handle on these new infrastructure options so you can accurately forecast your WAU/MAU. More details can be found at (theblock.co).
  • Don’t forget, World ID is phasing out “Sign in with World ID v1” on January 31, 2026. That means if you haven't migrated to IDKit, your anti-Sybil gate and referral eligibility checks are going to hit a hard stop. Make sure you’re ready for it by checking the docs here: (docs.world.org).
  • AA wallets were supposed to cut down on drop-offs, but it turns out the EntryPoint versions vary from provider to provider (some are on v0.6, while others are on v0.7/0.8). Plus, the Shared Mempool behavior might mess with inclusion guarantees for your sponsored ops, and unfortunately, your telemetry isn't keeping track of the versions. More on that at (alchemy.com).
  • Lastly, watch out for your Farcaster storage expiry. If things lapse, pruning will quietly delete older follows and casts, which could seriously derail your cohort re-engagement efforts and long-tail content strategy. Here’s a heads-up: (caststorage.com).

Result: launches are delayed, CPVU is on the rise, CFOs are wondering about retention rates, and Procurement is putting the brakes on SOWs because of some fuzzy details on security posture and ROI.


The business risk if you “ship and pray”

  • Missed deadlines can really pile up: when you're juggling a Mini App refactor, an auth migration, and some telemetry fixes, you're looking at a solid 4-6 weeks of work. And while you're tied up in that, the Lens Chain and Farcaster audience are out there moving on. Daily Active Users (DAUs) aren’t going to wait around for your plans. (blockworks.co)
  • Bot-driven incentive drags: If your “quest/referral” isn’t backed up by attestations or Proof of Participation/Proof of History, your paymaster spending and inventory bonuses are just going to get farmed. EAS is sitting at over 8.7M attestations now--this is basically the bare minimum for getting any eligibility or merit badges. If you're not hitting those numbers, your incentives are going to leak away. (attest.org)
  • Authentication hurdles can really slow growth: using passkeys gets you about a 93% success rate for sign-ins, compared to just 63% for the old-school methods. They also speed up the process significantly, so teams that skip implementing passkey-first Account Abstraction or fallback options for OTP are left with longer Time-To-First-Transaction (TTFT) and higher abandonment rates. (expertinsights.com)
  • Security issues from rushed Account Abstraction: EIP-7702 brings in new phishing risks if you're handing off execution without solid policy and user experience safeguards. Just one incident can really mess up your brand trust and hit retention hard for months. (arxiv.org)
  • Data integrity issues: when it comes to Farcaster unit pricing and expiry, things are always changing. If your Procurement team isn’t on top of auto-top-ups, the Hubs will start pruning data about 60 minutes after you've gone over your limit, and you'll get a 30-day grace period on expiry. Miss that, and you can kiss your graph equity goodbye. (caststorage.com)

7Block Labs’ Community Architecture for Retention (CAR) methodology

We’re not about those quick “growth hacks.” Instead, we focus on building strong retention strategies that cover everything from identity and actions to incentives and observability--all aligned with your profit and loss statement.

1) Identity and Access with Measurable Conversion

When it comes to identity and access management (IAM), being able to measure conversion effectively is crucial. You want to know how users are engaging with your system and how their actions lead to conversions.

Here’s a quick rundown of some key points to keep in mind:

  • User Identification: It's essential to have a solid method for identifying users. This can range from traditional username and password setups to more advanced options like biometrics or multi-factor authentication.
  • Access Control: After identifying users, the next step is managing what they can access. This involves setting up permissions and ensuring users only get access to the resources they need.
  • Tracking Conversion: Implement tools that help you track user actions and conversions. This could be through analytics software or customized tracking codes.
  • Measurable Metrics: Focus on key performance indicators (KPIs) that show how well your IAM system is performing. Think about metrics like conversion rate, user engagement level, and the efficiency of your access controls.
  • Continuous Improvement: Regularly review and tweak your IAM strategies based on what the data tells you. This will help you stay relevant and improve user experience.

For more details on IAM and measurable conversions, check out this resource.

  • Passkey‑first smart accounts with OTP/TOTP fallback:
    • Our Base Account/Smart Wallet now has email OTP support alongside passkeys. We're going for a passkey-first approach, while still keeping a fallback in place so desktop and mobile experiences are consistent. Plus, we’re tracking things like login success, time-to-first transaction (TTFT), and various A/B cohorts. Check it out here: (help.coinbase.com).
    • Our goal? To get passkeys adopted so we reach over 90% login success. According to FIDO’s 2025 index, we’re looking at a 93% success rate with passkeys and around a 30% boost in conversions compared to passwords. We see these as "north-star" benchmarks--not exactly guarantees, but pretty solid targets. More info here: (expertinsights.com).
  • Account abstraction done right:
    • We're rolling out clients and alerts compatible with EntryPoint versions. Make sure you're all set for v0.7 and keep an eye on dual-stack support, especially since some providers will be phasing out v0.6 by 2026. Learn more here: (alchemy.com).
    • For the shared Mempool, we're all about using bundlers with peer-to-peer propagation across Ethereum, Arbitrum, and Optimism. We’ll be watching how things get included by tracking “included_by_bundler” and managing our re-broadcast logic. More details here: (etherspot.io).
  • Anti‑Sybil and private proofs without killing UX:
    • Heads up: World ID v1 will be sunsetted by January 31, 2026. We suggest migrating to IDKit or using on-chain attestations as a substitute. Get the scoop here: (docs.world.org).
    • We're implementing EAS schemas for eligibility, reputation, and verified actions. Expect to see schema registries and explorer dashboards rolled out, so our marketing team can move quickly without getting stuck on dev delays. Check it out at: (attest.org).
    • We also have ZK Email for private domain-based allowlists and referrals. This means you can accept “alice@partner.com” without exposing the full email, thanks to DKIM-verified email proofs in ZK circuits (audit scheduled for 2024). Learn more here: (docs.zk.email).

2) Social Substrate and Execution Environments

In the realm of technology and digital interactions, understanding the relationship between social substrates and execution environments is vital. These concepts help us make sense of how social networks operate and how the execution of tasks takes place within these platforms.

Social Substrate

The social substrate refers to the underlying social structure that influences interactions within a network. It encompasses the connections, relationships, and community dynamics that shape user behavior. Here are a few key points to think about:

  • Relationships Matter: The quality and strength of relationships can affect how information spreads and how users engage with content.
  • Community Influences: Different communities have unique norms and values that can dictate how members communicate and collaborate.
  • User Engagement: Understanding the social substrate helps in designing better user experiences, as it allows platforms to cater to specific social needs and preferences.

Execution Environments

Execution environments are the settings or platforms where tasks are carried out. They can range from simple applications to complex systems that support multiple functionalities. Here’s what to keep in mind:

  • User Interface: A smooth and intuitive interface can greatly enhance user experience and productivity.
  • Integration: The ability to integrate with other tools and platforms can streamline workflows and foster collaboration.
  • Accessibility: Ensuring that execution environments are accessible to everyone is crucial for inclusivity in digital spaces.

Conclusion

By recognizing the interplay between the social substrate and execution environments, we can better appreciate how technology shapes our online interactions. Whether you’re working on a new app or trying to understand user behavior, considering these elements can provide valuable insights.

  • Farcaster (Mini Apps + on‑chain registries):

    • We're integrating with Id/Storage/Key Registry contracts on OP Mainnet, which means we’ve got things like automatic storage top-ups and unit monitoring in place to dodge pruning issues. Plus, we’re gearing up for that pre-flight Mini App transition. (docs.neynar.com)
    • We’ve cut ties with outdated third-party Frame chains. Now, we’re sticking to platform-supported Mini App paths and using first-party validated actions for a smoother experience. (frame.syndicate.io)
  • Lens (Open Actions, token‑bound accounts):

    • You can now launch Open Actions straight from your content and manage asset inventories through ERC‑6551 Token-Bound Accounts. This allows a profile to own rewards, boosts, and items across different apps, which really helps with keeping users engaged. (theblock.co)
    • Mark your calendars for April 4, 2025--Lens Chain mainnet is launching! It’s built on the zkSync stack with Avail DA, and we’ll be using Aave GHO as the gas token. We’re focused on optimizing fee policies and content settlement for a sub-second user experience while ensuring data availability remains verifiable. (theblock.co)

3) Incentive Design That Resists Farming and Compounds Value

When we think about building a robust incentive system, it’s essential to ensure that it not only discourages farming but also adds to the overall value over time. Here are some key points to consider:

  1. Long-term Engagement: Create rewards that require sustained participation. This could mean structuring incentives so that they accrue over time, encouraging users to stay engaged rather than just cashing out quickly.
  2. Dynamic Adjustments: Implement mechanisms that adjust rewards based on user behavior. For example, if a user is merely farming rewards without genuine engagement, the system can lower their returns, prompting them to contribute more meaningfully.
  3. Community Involvement: Foster a sense of community where users feel that their contributions are valued. Encourage collaborative projects and initiatives that bring users together, enhancing their investment in the ecosystem.
  4. Tiered Rewards: Consider a tiered reward system where users unlock benefits based on their level of engagement. This can motivate users to participate more actively to reach higher tiers.
  5. Transparency: Keep the processes clear. If users understand how their actions impact their rewards, they’re more likely to engage in ways that benefit the ecosystem.
  6. Feedback Loops: Set up channels for users to provide feedback on the incentives. This can help you refine the system continually and make changes that reflect the community’s needs.

By thinking creatively and strategically about how incentives are designed, we can create systems that promote meaningful interactions and compound value over time.

  • Switch from one-off “quests” to ongoing journeys:
    • Every milestone gives off an EAS attestation based on a versioned schema (like “Completed Onboarding v2,” “Referred KYC-verified user,” or “7-day active streak”). Marketing can bundle these into “status NFTs” within a token-bound account, creating a single, easy-to-manage membership status. (attest.org)
  • Referrals that respect privacy and provide real accountability:
    • Use ZK Email to verify referrals from partner domains or codes from real-life events without exposing personal info on-chain; the proofs only verify DKIM and selected fields. (docs.zk.email)
  • Sponsored gas policies with some smart guardrails:
    • Set up paymaster budgets that are tied to verified actions (attestations), use session keys specific to function selectors/time, and monitor inclusion metrics in the Shared Mempool to avoid private-relay capture. (docs.erc4337.io)

4) Observability--Log What Matters for Retention

When it comes to observability, it's super important to focus on logging the things that actually matter for keeping your users around. Here’s what you should keep in mind:

  1. User Engagement: Track interactions that show how users engage with your app. This can include clicks, time spent on specific pages, and the features they use most often.
  2. Error Tracking: Keep an eye on errors and bugs. If users are running into issues, you want to know about it ASAP so you can fix things and prevent churn.
  3. Performance Metrics: Monitor how your app is performing. Slow load times or frequent crashes can drive users away, so logging performance data is key.
  4. Feedback and Reviews: Capture user feedback, whether it’s through in-app surveys or reviews. This can give you direct insights into what users like or dislike.
  5. Retention Rates: Make sure to log metrics that show user retention over time. Knowing when and why users drop off can help you tweak your app to keep them coming back.

By focusing on these areas, you can gather valuable insights that inform your strategies for retaining users. Remember, it’s not just about collecting data, but about collecting the right data that drives meaningful change!

  • AA telemetry: We're keeping tabs on things like userOp lifecycle, bundler origin, EntryPoint version, simulation outcomes, and revert codes. All this data is connected to our funnels: “Auth → Mini App/Open Action → First On‑chain Act → Repeat Act.” You can find more details over at alchemy.com.
  • Social graph health: We're checking out the utilization of Farcaster storage units, the prune risk SLA, and the DA verification status for Lens/Momoka historical content (when it applies). Plus, we're looking at how well Open Actions are completing. For more info, swing by caststorage.com.
  • Growth accounting: We’re diving into metrics like CPVU, TTFT, paymaster $/activated user, K‑factor (viral coefficient), WAU/MAU, and D7/D30 retention. To help our Procurement team hit their targets, we’re using benchmarks for login success and time from the Passkey Index. Check it out at expertinsights.com.

5) Security Hardening Without Velocity Loss

When it comes to making your systems more secure, a common worry is that it might slow things down. But don't stress! You can actually strengthen your security without sacrificing speed. Here are some tips to help you do just that:

Streamline Your Processes

  • Automate Routine Tasks: Use tools to automate mundane tasks. This way, your team can focus on more critical security measures without lagging behind.
  • Prioritize Security Features: Focus on essential security features that provide the most protection without making things complicated.

Implement Layered Security

  • Multi-Layered Defense: Instead of relying on a single security measure, use a combination. Think firewalls, antivirus software, and intrusion detection systems working together.
  • Regular Updates: Keep all software and security tools updated. It’s like giving your system a refresh while keeping performance intact.

Monitor Performance

  • Track System Metrics: Regularly monitor your systems to ensure that security measures aren't slowing down your processes. If you notice any drops in speed, it might be time to adjust.
  • Conduct Regular Security Audits: Keep an eye on your security posture. This way, you can tweak things before any issues arise.

Training and Awareness

  • Include the Team: Make sure your team understands the importance of security. Their awareness can help avoid potential pitfalls that slow down your system.
  • Create Robust SOPs: Develop clear Standard Operating Procedures (SOPs) for security issues, allowing your team to respond quickly without causing delays.

Leverage Technology

  • Cloud Security Solutions: Consider using cloud services that are designed with speed and security in mind. These can often handle security better without impacting your overall performance.
  • Use APIs Wisely: Implement APIs that enhance security while keeping your applications efficient. Just make sure they’re reliable and quick!

By following these strategies, you can achieve a solid security posture while still keeping your operations running smoothly and efficiently. Remember, security doesn’t have to come at the cost of performance!

  • EIP‑7702 guardrails: We're introducing some user experience interlocks and policy checks to help tackle “single‑tuple permanent delegation” phishing. This means we’ll have explicit limits on scope and time, post-operation monitors, and controls to prevent replay attacks across chains, all based on the findings from our 2025 research. (arxiv.org)
  • We're also doing contract reviews for Open Actions, token‑bound accounts, and attestation handlers. This includes checking for re‑entrancy issues, especially around voucher redemptions and the way we handle external call trees.
  • On the Mini Apps front, we’re keeping up a continuous posture for secrets and key rotation, along with well-documented incident runbooks that need to be signed off on by Procurement.

Practical build patterns (you can ship this sprint)

  1. Quick and easy onboarding with passkeys + smart wallet
  • Flow: user opens the Farcaster Mini App → signs up using a passkey (Base Account) → gas-sponsored follow and first action happens.
  • Targets: We’re aiming for over 90% login success, under 20 seconds for time to first action, and less than 10¢ on the sponsored TX budget per activated user (this can vary by chain). Just to give you some context, FIDO has a 93% success rate and much quicker authentication times. (expertinsights.com)
  • What 7Block Labs will provide: auth widgets, AA glue (EntryPoint v0.7), paymaster policies, and funnel dashboards.

2) Verified Referral without PII

  • Flow: The issuer sends an invite via email, and the referee confirms that their email domain matches partner.com using ZK Email. Then, a smart contract creates an EAS “Verified Referral” attestation, and the designated profile gets tiered benefits.
  • Why it works: We don’t store any emails on-chain, making it super secure. Plus, it’s resistant to fraud thanks to DKIM in-circuit verification, and auditors have the ability to replay proofs. You can check out more details here.

3) Storage-Safe Farcaster Retention

  • Flow: The scheduler keeps an eye on each FID’s units and automatically rents them out before they expire. We send log pruning risks to PagerDuty, and our cohort re-engagement jobs work hard to reconnect with any followers that got pruned.
  • Spec Details: The unit capacity changed on July 16, 2025. We’ve got per-unit quotas that last for a year at about $0.30 each. The pricing is set in USD through Chainlink and you’ll be paying in ETH on OP. We make sure to sync our SLAs and budgets based on this. (caststorage.com)
  1. Lens Content That Converts
  • Flow: Share posts featuring Open Actions that let users join or make purchases on-chain. As users engage, their token-bound accounts build up status and benefits, while reaching certain milestones unlocks extra perks.
  • Infra: We're rolling with Lens Chain L2 using the zkSync stack, plus Avail DA and GHO gas. Keep in mind, the fees and DA choices will play a role in your CAC calculations. (theblock.co)

What GTM metrics we put on the executive dashboard

We’re dedicated to tracking and sharing the metrics that really matter to Procurement and Finance, all aligned with the SOW milestones.

  • Authentication Performance

    • Let’s look at the login success rate based on methods like passkeys versus OTP fallback, and how that stacks up across devices. We're aiming for that solid benchmark of FIDO's 93% success rate. (expertinsights.com)
    • We also need to keep an eye on time-to-login and TTFT (time-to-first-transaction).
  • Acquisition and Conversion

    • We should break down CPVU (cost per verified user) by channel; check out the paymaster $/activated user; and evaluate the referral K-factor (remember, it has to be verified, not just self-reported).
    • Don't forget to track the percentage of actions done through Open Actions/Mini Apps versus link-outs.
  • Cohort Retention and Compounding Value

    • It's crucial to keep tabs on D1/D7/D30 retention rates, WAU/MAU sticky ratios, how many people are repeating Open Actions, and benefit redemption from those token-bound accounts.
  • Network Reliability and Inclusion

    • We need to measure the shared Mempool inclusion rate (showing what percentage is included by non-origin bundlers), run some simulations for inclusion latency, and set up alerts for version-skew issues. (docs.erc4337.io)
  • Data Integrity

    • Let’s check on Farcaster unit coverage and track the count of SLA breaches related to prune risk; also, we need to implement Lens DA verification checks for the historical Momoka content. (caststorage.com)
  • Security Posture

    • Finally, we should keep an eye on EIP-7702 delegation scope/time anomalies, watch out for session-key abuses, and monitor any attempts at attestation forgery (like EAS schema misuse). (arxiv.org)

Why this works now (and didn’t two years ago)

  • Account Abstraction is officially in action: shared mempools on key L2s and standardized EntryPoint addresses are stepping in to eliminate single-RPC fragility. Looks like providers are aligning with v0.7, while v0.6 will be phased out by 2026. (etherspot.io)
  • Passkeys have officially hit the big time--showing real, measurable success with a noticeable drop in folks bailing at the auth gate. (expertinsights.com)
  • Social stacks are coming into their own: Farcaster has nailed down on-chain registries and Mini Apps, while Lens Chain is making waves with zkSync + Avail DA and Open Actions that seamlessly push transactions from content. (docs.neynar.com)

How we engage (Procurement‑friendly, ship‑ready)

Project Timeline

  • Architecture + GTM Design (2-3 weeks): We’ll kick things off with some stakeholder workshops to nail down our target metrics and infrastructure choices. We’ll discuss whether to go with Base, Lens Chain, or a multi-chain approach. Plus, we’ll be diving into the fraud model, EAS schema planning, and the design for passkey and AA authentication.
  • Build Sprints (4-8 weeks): Time to roll up our sleeves! We’ll tackle the Mini App/Open Actions, integrate AA, set up ZK Email flows, and get those token-bound accounts going. We’ll also work on dashboards and set up auto-top-ups for Farcaster storage to keep everything smooth.
  • Security + Data (parallel): While we’re building, we’ll be running targeted reviews for Open Actions, TBA, and attestations. We’ll also focus on hardening our EIP-7702 policy, and making sure our DPA/SLAs and runbooks are in tip-top shape.
  • Ongoing Optimization: We’ll keep refining things with A/B tests on our incentives, tuning our sponsored gas policy, and managing inclusion and prune-risk operations to ensure everything runs as efficiently as possible.

Where to start with 7Block Labs


Brief, in‑depth detail on key components

  • Farcaster on‑chain contracts you should know (OP Mainnet): We've got three key contracts to keep an eye on: the Id Registry (FIDs), Storage Registry (USD-priced, ETH-paid units via Chainlink), and the Key Registry (EdDSA app keys). We're all about integrating and monitoring these. Check out more details here.
  • Farcaster storage economics: Starting July 16, 2025, units will be good for a year, but they'll have reduced per-unit capacities. Right now, we're looking at around ~$0.30 per unit; keep in mind that Hubs will prune overages after about 60 minutes and anything expired after roughly 30 days. We’ve got the top-ups automated, so you won't have to worry about that. More info can be found here.
  • Lens Chain realities: The mainnet is live as of April 4, 2025, built on the zkSync stack and Avail DA. Open Actions and ERC-6551 let content spark transactions, allowing profiles to manage inventories of benefits--this is our top pick for lasting retention. Learn more about it here.
  • Passkey‑first auth: Think of FIDO’s Passkey Index as a solid starting point (with a 93% success rate!). Pair it with smart account TTFT controls and UX fallbacks like OTP/TOTP to help cut down on CPVU. Dive deeper here.
  • EIP‑7702 risk management: Watch out for phishing through persistent delegated code--it’s a real threat. We limit scopes and time, display human-readable policy prompts, and add monitoring across our 4337 pipelines. More information can be found here.
  • ZK Email: With DKIM-anchored proofs, you can verify the sender's domain and content patterns without giving away any PII. We’ve wrapped up multiple audits and have an active SDK/registry for designing these patterns. Find out more here.

The bottom line

  • Retention isn’t just a simple issue; it’s a systems challenge. It’s about creating layers of identity, action, incentives, and observability that build value and help guard against fraud right from the start.
  • With advancements in AA maturity (like shared mempool and provider convergence), the rise of mainstream passkeys, plus tools like Farcaster Mini Apps and Lens Chain + Open Actions, the tech stack is finally primed for action--assuming you roll it out with intention. (etherspot.io)

Personalized CTA Just for You:

Hey there! If you’re the Director of Product at a consumer app gearing up for a Farcaster Mini App launch before March 31, 2026, and you still need to tackle these three things:

  1. Migrate off World ID v1
  2. Implement storage auto‑top‑ups
  3. Set passkey‑first AA with Shared Mempool metrics

Let’s connect! Book a quick 45-minute working session with us. We’ll take a look at your auth, incentive, and inclusion pipelines compared to those benchmarks and get you a solid Statement of Work within 72 hours.

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