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zero-knowledge-privacy-identity-and-compliance
Blog

The Future of Loyalty Programs: Portable, Private Proofs of Engagement

Loyalty is broken. Users are tracked across siloed programs for meager rewards. Zero-Knowledge credentials enable aggregated, portable proof of engagement without revealing cross-platform activity, flipping the power dynamic from brands to users.

introduction
THE POINT OF FAILURE

Introduction

Traditional loyalty programs are broken data silos that leak value and trust.

Loyalty programs are data silos. They trap user engagement data in centralized databases, creating a poor user experience and preventing brands from interoperating. This architecture is a primary cause of low redemption rates and high operational costs.

The solution is portable, private proofs. On-chain attestations, like those enabled by Ethereum Attestation Service (EAS) or Verax, transform loyalty points into verifiable credentials. Users own their engagement history, not the corporation.

This shifts the business model. Instead of managing points ledgers, brands issue verifiable proofs of specific actions. Aggregators like Ribbon Finance for DeFi or future loyalty networks can then compose these proofs into new rewards and financial products, unlocking latent value.

Evidence: Starbucks Odyssey, built on Polygon, demonstrated a 24% increase in customer engagement by making loyalty NFTs tradable and composable, proving the demand for asset-like rewards.

thesis-statement
THE SHIFT

Thesis Statement

Loyalty programs will evolve from siloed point systems to portable, private proofs of engagement secured on-chain.

Loyalty is a data asset. Current programs trap user engagement data in proprietary databases, creating a negative-sum game for brands and users.

Portable proofs unlock composability. A user's Starbucks visit, proven via a zero-knowledge proof from a protocol like Worldcoin or Sismo, becomes a verifiable credential for any other brand's program.

Privacy is the adoption vector. Users will not trade surveillance for points. ZK-proofs and ERC-4337 account abstraction enable selective disclosure, proving engagement without revealing identity.

Evidence: Starbucks Odyssey's 3.5M+ NFT-based rewards members demonstrate demand for digital collectible rewards, but its closed system highlights the need for open, portable standards like ERC-6551 for token-bound accounts.

market-context
THE DATA

Market Context: The Loyalty Prison

Current loyalty programs create siloed, non-transferable data assets that trap user value.

Siloed data assets are the core product. Programs from Starbucks or United Airlines lock engagement data in proprietary databases, creating a moat that prevents user portability and interoperability.

The privacy trade-off is broken. Users surrender personal data for points of negligible cash value, a lopsided exchange that platforms like Fetch Rewards monetize through data aggregation and sale.

Proofs of engagement lack composability. A coffee purchase proof cannot natively interact with a travel booking proof, preventing the creation of a unified, user-owned reputation layer.

Evidence: The global loyalty management market is valued at $8.5B, yet average point redemption rates remain below 50%, indicating massive trapped and wasted value.

FEATURED SNIPPETS

The Loyalty Stack: Traditional vs. ZK-Credential Model

A first-principles comparison of legacy loyalty program infrastructure against a composable, privacy-preserving model using zero-knowledge credentials.

Core Feature / MetricTraditional Silos (e.g., Starbucks, Airlines)ZK-Credential Model (e.g., Sismo, Disco, Axiom)

User Data Portability

Cross-Program Composability

Privacy (Proof w/o Exposure)

On-Chain Settlement Layer

Fraud/Replay Attack Resistance

Low (Central DB)

High (ZK Proofs, Nonces)

Program Setup Cost

$50k - $500k+

$5k - $50k (Smart Contract)

User Onboarding Friction

High (Form, Email)

Low (Wallet Connect, 1-click)

Audit Trail & Provenance

Opaque, Proprietary

Transparent, Verifiable (Ethereum, Polygon)

deep-dive
THE PROOF

Deep Dive: How ZK Credentials Unlock Portable Loyalty

Zero-knowledge proofs transform fragmented loyalty points into private, portable assets that users own and can use across ecosystems.

ZK Credentials are portable proof-of-engagement. A user proves they hold a Starbucks 'Gold' status without revealing their identity or account number, enabling them to claim airdrops or discounts on a partner app like Polygon-based DeFi protocol.

This breaks the data silo monopoly. Traditional programs like airline miles trap value; portable proofs using standards like Verifiable Credentials (W3C VC) or Sismo badges let users aggregate and leverage their reputation across chains.

Privacy is the non-negotiable feature. Proofs via zk-SNARKs (e.g., using Circom) or zk-STARKs allow selective disclosure, preventing the surveillance-based advertising model that plagues Web2 loyalty.

Evidence: Sismo has minted over 400,000 ZK Badges, demonstrating demand for portable, private attestations that function as cross-protocol loyalty tokens.

protocol-spotlight
THE FUTURE OF LOYALTY PROGRAMS

Protocol Spotlight: Builders of the Credential Layer

Traditional loyalty points are siloed, opaque, and worthless. The next generation uses portable, private credentials to turn engagement into programmable capital.

01

The Problem: Silos & Illiquidity

Points are trapped in corporate databases, creating ~$100B in dead capital. Users can't prove their status elsewhere, and programs can change rules at will, devaluing engagement.

  • Zero Portability: Status from Airline A is useless at Hotel B.
  • Opaque Valuation: Points have no transparent market price.
  • Custodial Risk: Programs can be terminated unilaterally.
$100B+
Trapped Value
0%
Portability
02

The Solution: Verifiable Credentials (VCs)

Cryptographic proofs of engagement (e.g., "Top 5% Spender") issued as self-sovereign, off-chain VCs. They are private, portable, and verifiable without a central issuer.

  • Selective Disclosure: Prove you're a 'Gold Member' without revealing all transactions.
  • Chain-Agnostic: Credentials live off-chain, usable across any chain or app via protocols like Veramo or SpruceID.
  • User-Owned: The credential wallet, not the corporation, holds the proof.
ZK-Proofs
Privacy
100%
User Custody
03

Galxe: The Engagement Graph

Galxe has built the dominant Web3 credential data network, mapping over 15M identities to on-chain/off-chain achievements. It's the infrastructure for programmatic loyalty.

  • Data Aggregation: Pulls proofs from Snapshot, GitHub, Twitter, and custom sources.
  • Composability: Credentials power token-gated access, airdrops, and credit scoring.
  • Monetization: Projects pay to design campaigns; users earn OATs (Proof NFTs).
15M+
Identities
3,000+
Campaigns
04

The Problem: Static, Non-Programmable Points

Today's points are dumb accounting entries. They cannot be used as collateral, transferred, or integrated into DeFi, missing the entire composability thesis of crypto.

  • No Financial Utility: Cannot be lent, borrowed against, or used in AMMs.
  • Manual Redemption: Requires navigating a single brand's clunky portal.
  • No Secondary Market: Prevents price discovery and user liquidity.
$0
DeFi TVL
Manual
Redemption
05

The Solution: Tokenized Loyalty & Points Markets

Represent points or status tiers as ERC-20 or ERC-1155 tokens on an L2 like Base or Arbitrum. This creates instant liquidity and programmability.

  • Automated Market Makers: Users can swap airline points for hotel points.
  • Collateralization: Use your 'Diamond Status' NFT as collateral for a loan on Aave.
  • Dynamic Rewards: Smart contracts auto-distribute rewards based on verifiable credentials.
ERC-20
Liquidity
<$0.01
Tx Cost
06

Ethereum Attestation Service (EAS): The Universal Ledger

EAS provides a public good schema registry and attestation engine on-chain. It's the primitive for making any claim—from loyalty status to KYC—portable and trust-minimized.

  • Schema Standardization: Brands define credential formats (e.g., 'Q1 2024 VIP').
  • On-Chain Proof: Attestations are immutable, timestamped records.
  • Permissionless Verification: Any app can check the validity of a user's credential without relying on the original issuer's API.
1M+
Attestations
Gasless
Options
counter-argument
THE INCENTIVE MISMATCH

Counter-Argument: Will Brands Even Play Ball?

Brands will resist portable loyalty proofs unless the infrastructure solves their core business problems.

Brands prioritize data control. Portable proofs create a data leakage risk, exposing proprietary engagement patterns to competitors via public ledgers like Ethereum or Solana.

Interoperability requires standardization. Brands will not adopt a fragmented landscape of 10 different loyalty token standards; a dominant standard like ERC-6551 for wallets must emerge.

The value proposition must invert. The pitch is not 'give up your data' but 'gain on-chain attribution for your ad spend' via systems like EigenLayer restaking or Hyperliquid.

Evidence: Starbucks Odyssey's closed-loop model on Polygon demonstrates that brands will adopt blockchain for engagement, but only when they retain full custody of the experience and data.

risk-analysis
CRITICAL FAILURE MODES

Risk Analysis: What Could Go Wrong?

Portable loyalty proofs introduce novel attack vectors and systemic risks that could undermine the entire model.

01

The Sybil Onslaught

Programs become trivial to game if proof-of-unique-personhood is weak. ZK proofs of engagement are useless if the underlying identity is fake. This risks a race to the bottom in reward dilution.

  • Attack Vector: Low-cost identity farming via Worldcoin oracles or simple attestation spam.
  • Consequence: >90% of issued rewards could be captured by bots, destroying program ROI.
>90%
Bot Capture
$0
Real User Value
02

The Oracle Problem Reborn

Off-chain engagement data (e.g., in-store purchases, airline miles) requires a trusted bridge to on-chain proofs. Centralized oracles like Chainlink become single points of failure and censorship.

  • Attack Vector: Oracle manipulation or downtime corrupts the entire proof ledger.
  • Consequence: Loss of portability guarantees, reverting to walled-garden models controlled by data aggregators.
1
Single Point
100%
System Reliance
03

Regulatory Arbitrage Hell

Portable proofs could be classified as securities or financial instruments across jurisdictions. A program compliant in the EU may be illegal in the US, creating fragmented liquidity and legal liability for users.

  • Attack Vector: Aggressive enforcement against proof minters (e.g., protocols like Galxe) or holders.
  • Consequence: Major brands exit, stifling adoption. Remaining activity shifts to unregulated, high-risk chains.
10+
Jurisdictions
0
Global Standard
04

The Privacy-Portability Paradox

Zero-knowledge proofs (e.g., using zk-SNARKs) protect user data but make compliance (AML/KYC) and fraud detection impossible for issuers. This forces a choice: private proofs or usable programs.

  • Attack Vector: Illicit proof laundering becomes untraceable, attracting regulatory scrutiny.
  • Consequence: Brands reject private systems, opting for semi-custodial models that recentralize control.
100%
Opaque
0%
Auditable
05

Liquidity Fragmentation Death Spiral

Proofs issued on Ethereum are too expensive for small rewards, while proofs on Solana or Polygon aren't trusted by enterprise issuers. This creates proof ghettos with no cross-chain liquidity.

  • Attack Vector: LayerZero and Wormhole bridge risks become systemic, as a bridge hack destroys cross-chain proof integrity.
  • Consequence: The promised universal loyalty layer fractures into incompatible, low-value silos.
5+
Chain Silos
-90%
Proof Utility
06

The Centralized Issuer Backdoor

Brands retain the power to freeze, revoke, or devalue proofs at the smart contract level, making portability an illusion. This is the CBDC model applied to loyalty.

  • Attack Vector: Issuer uses admin keys to blacklist proofs from competitors or censor users.
  • Consequence: On-chain proofs become merely fancy databases, replicating the very vendor lock-in they promised to solve.
100%
Admin Control
0%
User Sovereignty
future-outlook
THE DATA

Future Outlook: The Loyalty Graph

Loyalty programs will evolve into a permissionless, portable, and private graph of user engagement.

Portable Reputation Assets will replace siloed points. User engagement proofs become on-chain, self-custodied assets that interoperate across protocols like UniswapX or Aave for governance, creating a composable social graph.

Zero-Knowledge Proofs enable private verification. Users prove engagement history or tier status to dApps via zkSNARKs without revealing underlying data, separating identity from verification.

The protocol layer abstracts the program. Instead of building loyalty, brands deploy verifiable credentials to a shared Loyalty Graph standard, similar to how ERC-4337 abstracts account management.

Evidence: Projects like Galxe and RabbitHole already issue non-transferable OATs (On-chain Achievement Tokens) as primitive loyalty proofs, demonstrating demand for portable engagement records.

takeaways
THE FUTURE OF LOYALTY PROGRAMS

Key Takeaways for Builders & Investors

Loyalty is a $200B+ market trapped in siloed databases. On-chain proofs of engagement unlock composable value.

01

The Problem: Silos Kill Engagement

Traditional programs have >70% dormancy rates. Points are trapped, non-transferable, and offer zero liquidity. This creates massive customer acquisition cost (CAC) inefficiency for brands and dead capital for users.

  • Benefit 1: Unlock $10B+ in dormant point value.
  • Benefit 2: Turn loyalty from a cost center into a revenue-generating asset layer.
>70%
Dormant Users
$10B+
Trapped Value
02

The Solution: Portable Proofs & On-Chain Aggregators

ZK-proofs of engagement (like zkEmail, Sismo) create private, verifiable attestations. Aggregator protocols (e.g., EigenLayer, Hyperliquid) can bundle and tokenize this loyalty data, creating a universal points layer.

  • Benefit 1: Users own and port proofs across brands and DeFi.
  • Benefit 2: Builders can compose loyalty with Aave, Uniswap, and NFT mints.
Zero-Knowledge
Privacy
Composable
Asset Layer
03

The Investment Thesis: Infrastructure for Proof Markets

The real value accrues to the rails, not the points. Invest in attestation standards (EAS), ZK-proof infrastructure, and liquidity layers that enable proof staking and trading. This is the ERC-20 moment for reputation.

  • Benefit 1: Capture fees from a new proof-of-engagement economy.
  • Benefit 2: Enable sybil-resistant airdrops and under-collateralized lending.
Infrastructure
Value Accrual
New Primitive
Reputation Token
04

The Builders' Playbook: Start with NFTs, Evolve to ZK

Initial traction comes from Soulbound Tokens (SBTs) and non-transferable NFTs as simple proof carriers. The endgame is modular ZK attestations verified by a decentralized network (like Brevis, Risc Zero).

  • Benefit 1: Fast MVP with existing ERC-721/1155 standards.
  • Benefit 2: Gradual migration to a privacy-preserving, gas-efficient ZK layer.
SBTs
On-Ramp
ZK Layer
End-State
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ZK Credentials: The End of Fragmented Loyalty Programs | ChainScore Blog