blockchain network
Pi Network PI
Pi Network is a Stellar Consensus Protocol (SCP) derivative blockchain with a live mainnet, substantial migrated value (>10B PI), and a large user base. All production cryptographic layers — spend authorization, consensus authentication, P2P node identity, and newly introduced ZK-proof infrastructure (BN254 pairings via Protocol v25 X-Ray) — rely exclusively on classical elliptic-curve cryptography (Ed25519). The project acknowledged quantum computing as a technological risk in its MiCA regulatory whitepaper (November 2025), satisfying minimal risk-assessment preparedness, but has published no formal cryptographic inventory, no PQC migration roadmap, no prototype, no testnet, and no mainnet PQC or hybrid-PQC path. Viral community claims about 'v25/v26 Quantum Core' are unsubstantiated speculation absent from all official Pi Core Team communications. A third-party bridge (PiBridge) enables two-way wrapped PI flow to BSC, creating an additional quantum-vulnerable value path. No independent cryptographic audit of the core protocol exists. The QRI Score of 3 reflects: acknowledgment of quantum risk without any meaningful production protection, no public cryptographic inventory, and fully quantum-vulnerable critical layers. This places Pi Network at Stage 1 (Quantum Risk Assessed) with an effective Readiness & Risk Cap of 10 from the absence of a public cryptographic inventory.
Category breakdown
QRI Factors
Critical Quantum Blockers
- All spend authorization uses Ed25519 (ECC) signatures — vulnerable to Shor's algorithm on a CRQC.
- All consensus authentication (SCP quorum messages, nomination, balloting) uses Ed25519 — quantum-vulnerable.
- No public cryptographic inventory has been published by the Pi Core Team.
- No PQC migration roadmap, prototype, testnet, or mainnet path exists in any official capacity.
- Third-party PiBridge enables two-way wrapped PI flow to BSC (non-PQ-secure), creating a quantum-vulnerable value path.
Key Risks
- Quantum-critical vulnerability: All transaction spend authorization uses Ed25519. A CRQC could forge signatures and steal any PI from any address whose public key is known or derivable.
- Quantum-critical vulnerability: SCP consensus messages (nomination, balloting, externalize) are authenticated with Ed25519. A quantum adversary could forge consensus messages, potentially disrupting finality or enabling double-spend attacks.
- Quantum-critical vulnerability: Protocol v25 introduced X-Ray with BN254 pairing support for ZK-proofs. BN254 is vulnerable to Shor's algorithm, meaning any ZK-based privacy or scaling applications built on this infrastructure inherit quantum vulnerability.
- Quantum-critical uncertainty: The Pi Core Team has made no official statement about quantum readiness. Community-speculated 'Quantum Core' claims are unverifiable and contradicted by the absence of any PQC code, specification, or official announcement.
- Quantum-critical uncertainty: The core consensus node implementation is not open-source, making independent verification of cryptographic primitives impossible without official disclosure.
- Bridge risk: PiBridge (third-party) enables wrapping PI to WPI on BSC (BEP-20). BSC is not PQ-secure. Value flowing through this bridge inherits BSC's quantum vulnerability, and a two-way bridge allows vulnerable value to potentially affect Pi Network's economic security.
- Value-at-risk concentration: With >10B PI migrated and a market cap of ~$1.79B, the economically exposed value to quantum attack is substantial. The project's KYC-based migration model means most migrated value sits in identified, KYC-linked accounts with known public keys.
- No migration path: There is no official mechanism — not even a roadmap proposal — for migrating from Ed25519 to PQC or hybrid signatures. The network lacks the governance, tooling, coordination framework, and cryptographic agility needed to execute a migration before a quantum threat materializes.
Assurance Notes
- No independent cryptographic audit of the core consensus protocol or signature implementation exists. CertiK Skynet confirms 'Not Audited By CertiK' and '3rd Party Audit: No' as of June 2026.
- Core protocol source code is not fully open-source. The official pi-apps GitHub organization publishes SDK, explorer, and platform documentation but not the consensus node implementation.
- The unofficial KOSASIH/pi-supernode repository claims PQC support (Kyber/Dilithium) but is an independent community fork with no official integration, no audit, and no mainnet deployment.
- No formal quantum-specific incident-response playbook or emergency governance process is documented.
- PiBridge (third-party) enables two-way wrapped PI (WPI) on BSC, creating a path for value to flow into a non-PQ-secure system. The official cross-chain bridge remains in testnet as of Q2 2026.
- Protocol upgrade governance exists through Stellar-based voting (15.8M+ participants demonstrated for Protocol v25), but no quantum-specific migration governance is documented.
Non-Scoring Caveats
- Viral community claims about 'v25/v26 Quantum Core', 'Quantum Dawn', and 'Quantum Mesh' are unsubstantiated community speculation with no official confirmation from the Pi Core Team. These claims appear in secondary news aggregation (MEXC News, May 2026) but are absent from official Pi Network communications including the Pi Day 2026 blog post.
- The unofficial KOSASIH/pi-supernode repository (152 stars, Python/JS/Rust) claims Kyber/Dilithium integration under a 'Quantum-Resistant Revolution' banner, but this is an independent fork with no affiliation to the Pi Core Team, no audit, and no mainnet deployment.
- Protocol v25 (January 2026) introduced X-Ray privacy with BN254 pairing support for ZK-proofs. BN254 is a pairing-friendly elliptic curve with ~100-110 bits of classical security, itself quantum-vulnerable to Shor's algorithm. This is a new quantum-vulnerable cryptographic surface, not a protection.
- The Coixa Wallet security audit (96/100 score, March 2026) covers wallet application security, not quantum resistance of the underlying signature scheme.
- Pi Network's CertiK Skynet Security Score of 69.48 reflects aggregated operational and community metrics, not a cryptographic implementation audit.
- The project's massive user base (60M+ registered, 15.8M+ KYC-verified on mainnet) and significant migrated value (>10B PI) mean the economic exposure to quantum attack is substantial.
- No formal performance or resource-impact analysis exists for any potential PQC migration path.
Evidence record
Claims and Caveats
Security Assessment & Evidence Preparedness
Public cryptographic inventory and quantum threat model
Claim: Pi Network's MiCA whitepaper (November 2025) acknowledges quantum computing as a technological risk that could break encryption paradigms and lead to theft or loss of crypto-assets.
Coverage basis: Official regulatory filing acknowledges quantum threat but does not catalog specific public-key mechanisms, attack surfaces, or affected layers.
Implementation score: 0 · Evidence confidence: Medium
Issue classification: quantum-critical vulnerability · Score treatment: score-reducing
Quantum blocker: No formal public cryptographic inventory published by Pi Core Team
Assurance: Acknowledgment exists but is generic; no enumeration of Ed25519 usage, key exposure surfaces, consensus dependency, or ZK/pairing vulnerability.
Third-party sources (CoinPaprika, OKX, BSC News) have identified Ed25519 as the signature scheme. The project itself has not published a formal inventory.
Security Assessment & Evidence Preparedness
Public evidence record supporting assessment
Claim: Multiple secondary sources confirm Ed25519 usage and SCP inheritance. Pi blockchain explorer (forked from Stellar explorer) and SDK (using Stellar SDK) confirm Stellar heritage.
Coverage basis: Third-party technical analyses, official SDK documentation, and blockchain explorer code confirm the cryptographic architecture.
Implementation score: 0.25 · Evidence confidence: Medium
Issue classification: assurance-only caveat · Score treatment: note-only
Assurance: No official code references, specs, or reproducible analytics published by Pi Core Team. Evidence relies on third-party analysis and SDK documentation rather than formal project disclosure.
The core consensus node implementation is not publicly available. The pi-apps GitHub organization publishes SDKs, explorer, and platform docs but not the consensus client.
- https://github.com/pi-apps/pi-explorer — forked from chatch/stellarexplorer (Stellar)
- https://github.com/pi-apps/pi-sdk-integration-guide — uses Stellar SDK for transaction building and signing
- https://coinpaprika.com/coin/piai-pi-network-ai/ — confirms Ed25519 usage
- https://www.okx.com/learn/is-pi-network-legit — confirms modified SCP consensus
- https://bsc.news/post/pi-network-consensus-mechanism — detailed SCP analysis
Production Cryptographic Protection
Spend authorization / transaction signatures
Claim: Pi Network uses Ed25519 for transaction signatures, inherited from Stellar Consensus Protocol.
Coverage basis: Multiple sources confirm Ed25519: CoinPaprika analysis, KOSASIH/pi-supernode README explicitly lists 'Ed25519 Signatures' as a security feature, SCP specification mandates Ed25519.
Implementation score: 0 · Evidence confidence: High
Issue classification: quantum-critical vulnerability · Score treatment: score-reducing
Quantum blocker: All spend authorization is Ed25519-only; fully vulnerable to Shor's algorithm
Assurance: Ed25519 is well-studied and standardized (RFC 8032). Its quantum vulnerability to Shor's algorithm is well-established in cryptographic literature.
No PQC, hybrid, or quantum-safe alternative exists for any transaction path. Pi addresses start with 'G' (Stellar-style), confirming Ed25519 public key derivation.
Production Cryptographic Protection
Account, address, public-key exposure, and key-derivation design
Claim: Pi Network uses Stellar-style accounts with Ed25519 public keys. Addresses are public and start with 'G'.
Coverage basis: Pi blockchain explorer documentation confirms addresses start with 'G'. Stellar SDK usage confirms Ed25519 key derivation.
Implementation score: 0 · Evidence confidence: High
Issue classification: quantum-critical vulnerability · Score treatment: score-reducing
Quantum blocker: Public keys are long-exposed on-chain; all addresses with transaction history have known/derivable Ed25519 public keys vulnerable to offline quantum attack
Assurance: Long-exposure attack window applies: any address that has sent a transaction has a publicly visible Ed25519 public key that can be attacked offline with no time constraint.
No address format supports PQC key types. No key-derivation path exists for hybrid or PQC keys.
Production Cryptographic Protection
Consensus-critical authentication
Claim: SCP consensus messages (nomination, balloting, externalize) are authenticated with Ed25519 signatures, as specified by the Stellar Consensus Protocol.
Coverage basis: SCP specification and all SCP implementations mandate cryptographic signatures for consensus messages. Pi Network inherits this from Stellar.
Implementation score: 0 · Evidence confidence: High
Issue classification: quantum-critical vulnerability · Score treatment: score-reducing
Quantum blocker: SCP consensus messages signed with Ed25519; forged consensus messages could disrupt finality or enable double-spend attacks
Assurance: SCP's safety depends on quorum intersection and cryptographic message integrity. Quantum-forged signatures could undermine both nomination and balloting phases.
Pi's adaptation of SCP with security circles and trust graphs does not alter the underlying cryptographic dependency on Ed25519 for message authentication.
Production Cryptographic Protection
State-integrity and data-availability mechanisms
Claim: Pi Network uses Stellar-derived ledger structure with Ed25519-signed transactions. Protocol v25 introduced X-Ray with BN254 pairing support for ZK-proofs.
Coverage basis: Protocol v25 upgrade announcement confirms BN254 (alt_bn128) pairing support for ZK-proof verification. Base ledger integrity relies on Ed25519 signatures.
Implementation score: 0 · Evidence confidence: Medium
Issue classification: quantum-critical vulnerability · Score treatment: score-reducing
Quantum blocker: BN254 pairings are quantum-vulnerable; ZK-proofs relying on BN254 can be forged by a CRQC, compromising state integrity for any ZK-based applications
Assurance: BN254 provides ~100-110 bits of classical security. It is not post-quantum secure. Shor's algorithm breaks the discrete log problem underlying pairing-based cryptography.
Protocol v25 is a recent upgrade (January 2026) that introduces new quantum-vulnerable cryptographic surfaces rather than mitigating existing ones.
Production Cryptographic Protection
Privacy and proof layers
Claim: Protocol v25 X-Ray supports zero-knowledge proofs using BN254 pairings and Poseidon hash functions for ZK applications.
Coverage basis: Protocol v25 upgrade documentation and community technical analyses confirm X-Ray privacy protocol with BN254 and Poseidon.
Implementation score: 0 · Evidence confidence: Medium
Issue classification: quantum-critical vulnerability · Score treatment: score-reducing
Quantum blocker: BN254-based ZK-proof systems are quantum-vulnerable; Poseidon is a hash function and may offer some post-quantum properties, but the pairing dependency dominates
Assurance: Poseidon is a ZK-optimized hash function. While hash functions have some post-quantum resistance, the overall proof system security depends on BN254 pairings which are not post-quantum.
X-Ray is described as enabling 'smooth migration for existing Zero-Knowledge Proof applications' — this implies compatibility with Ethereum's BN254 precompiles, not quantum safety.
Production Cryptographic Protection
P2P transport, node identity, and peer authentication
Claim: Pi Network nodes communicate over ports 31400-31409. Node identity in SCP is tied to Ed25519 keypairs used for consensus message signing.
Coverage basis: SCP architecture binds P2P node identity to the same Ed25519 keys used for consensus. Pi Node documentation confirms port usage.
Implementation score: 0 · Evidence confidence: Medium
Issue classification: quantum-critical vulnerability · Score treatment: score-reducing
Quantum blocker: Node identity is Ed25519-based and consensus-critical in SCP; quantum-forged node identities could compromise quorum formation
Assurance: In SCP/FBA, node identity is integral to quorum slice configuration. A quantum attacker could impersonate trusted nodes and manipulate quorum formation.
P2P transport encryption may use TLS or similar; if ephemeral Diffie-Hellman is used for transport, it shares the same ECC vulnerability.
Production Cryptographic Protection
Critical wallet, custody, HSM, signer, and hardware-wallet workflows
Claim: Pi Network provides mobile and desktop wallets using Ed25519 keypairs. Pi SDK uses Stellar SDK Keypair for signing. No PQC wallet support exists.
Coverage basis: Pi SDK documentation and wallet guides confirm Stellar SDK usage. No evidence of PQC wallet support in any official or third-party Pi wallet.
Implementation score: 0 · Evidence confidence: High
Issue classification: quantum-critical vulnerability · Score treatment: score-reducing
Quantum blocker: All wallet and custody workflows are Ed25519-only; no PQC key generation, signing, or verification path exists
Assurance: The Coixa Wallet audit (96/100) assesses wallet application security, not quantum resistance. No HSM or hardware-wallet integration for PQC is documented.
Kraken listing (announced Pi Day 2026) and OKX/Gate.io support mean exchange custody of PI relies on the same Ed25519 infrastructure.
Migration Status & Value-at-Risk
Percentage of economically relevant value-at-risk protected
Claim: 0% of PI value-at-risk is protected from quantum key-recovery attacks. All ~$1.79B market cap and >10B migrated PI is secured by Ed25519 only.
Coverage basis: All production cryptography is Ed25519-based. No PQC migration has occurred. Coverage is effectively 0%.
Implementation score: 0.05 · Evidence confidence: Medium
Issue classification: quantum-critical vulnerability · Score treatment: score-reducing
Quantum blocker: 0% value-at-risk protection; all value is quantum-vulnerable
Assurance: Exact value-at-risk distribution by attack window (long-exposure vs short-exposure) cannot be precisely measured without on-chain analytics, but all migrated PI has publicly visible transaction history and therefore exposed public keys.
Coverage scored at <25% tier (1/20 = 0.05 Implementation Score).
Migration Status & Value-at-Risk
Critical wallets migrated, protected, or inherently PQ-native
Claim: No critical wallets (treasuries, exchanges, bridges, foundations, major protocols) are known to be protected by PQC or hybrid signatures.
Coverage basis: All known exchange listings (OKX, Gate.io, Kraken) and Pi ecosystem wallets use standard Ed25519. No PQC-protected custody path is documented.
Implementation score: 0 · Evidence confidence: Medium
Issue classification: quantum-critical vulnerability · Score treatment: score-reducing
Quantum blocker: No critical wallets are quantum-protected
Assurance: The Pi Core Team reportedly controls a large fraction of total supply through foundation wallets; these are quantum-vulnerable.
Migration Status & Value-at-Risk
Legacy vulnerable pools/accounts/UTXOs/contracts are identified and deprecated
Claim: No legacy vulnerable pools have been formally identified, measured, or targeted for deprecation, freeze, or migration by the Pi Core Team.
Coverage basis: No evidence of any quantum-specific deprecation or migration program. All accounts are Ed25519-based and treated as current.
Implementation score: 0 · Evidence confidence: Medium
Issue classification: quantum-critical vulnerability · Score treatment: score-reducing
Quantum blocker: No legacy vulnerability identification or deprecation program exists
Assurance: KYC-based account system could theoretically enable targeted migration, but no such program has been announced.
The Pi Network's enclosed-to-open mainnet migration focused on KYC verification and balance migration, not cryptographic migration.
Migration Mechanism, Governance & Ecosystem Coordination
Public migration or protection roadmap
Claim: No quantum-specific migration or protection roadmap exists. The official roadmap and Pi Day 2026 announcements focus on protocol upgrades (v20-v23), smart contracts, and ecosystem growth with zero mention of quantum resistance.
Coverage basis: Official roadmap (minepi.com/roadmap) and Pi Day 2026 blog post contain no quantum-related content.
Implementation score: 0 · Evidence confidence: High
Issue classification: quantum-critical vulnerability · Score treatment: score-reducing
Quantum blocker: No quantum migration roadmap exists
The Pi Day 2026 blog discusses Node v20.2, Protocol 20, smart contracts, second migrations, Kraken listing, and App Studio — all classical infrastructure. No quantum security mention.
Migration Mechanism, Governance & Ecosystem Coordination
Migration accessibility and defaults
Claim: No PQC or hybrid account creation, wallet tooling, transaction paths, custody paths, user-facing warnings, education, or migration prompts exist.
Coverage basis: All user-facing infrastructure is Ed25519-only. No PQC option is available or planned in any official capacity.
Implementation score: 0 · Evidence confidence: High
Issue classification: quantum-critical vulnerability · Score treatment: score-reducing
Quantum blocker: No PQC account creation or migration tooling exists
Migration Mechanism, Governance & Ecosystem Coordination
Migration enforcement and coordination
Claim: No enforcement mechanisms exist for quantum migration. No deprecation, freeze, disabled legacy signing, restricted withdrawals, or mandatory migration deadlines are documented.
Coverage basis: Protocol governance exists for general upgrades (voting demonstrated for Protocol v25 with 15.8M participants) but no quantum-specific enforcement mechanisms.
Implementation score: 0 · Evidence confidence: Medium
Issue classification: quantum-critical vulnerability · Score treatment: score-reducing
Quantum blocker: No quantum migration enforcement mechanisms exist
Assurance: PiBridge (third-party) enables two-way wrapped PI flow to BSC with no quantum-related restrictions.
The existence of governance voting infrastructure is a positive signal for future migration coordination, but it has not been applied to any quantum-security context.
Migration Mechanism, Governance & Ecosystem Coordination
Emergency disclosure, incident-response, or governance process for quantum-related vulnerabilities
Claim: No quantum-specific emergency disclosure, incident-response, or governance process is documented.
Coverage basis: No evidence found in any official or secondary source.
Implementation score: 0 · Evidence confidence: None
Issue classification: assurance-only caveat · Score treatment: note-only
Assurance: This is classified as note-only because the absence of a documented quantum-specific IR process does not independently create a quantum-vulnerable path — but it means the project lacks documented preparedness for quantum emergency scenarios.
Algorithm & Implementation Assurance
Uses NIST-standardized, standards-track, or broadly reviewed PQC/hybrid-PQC algorithms
Claim: Pi Network does not use any PQC or hybrid-PQC algorithms. All production cryptography is classical Ed25519.
Coverage basis: No PQC algorithms are used in any production, testnet, or prototyped capacity by the official Pi Core Team.
Implementation score: 0 · Evidence confidence: High
Issue classification: quantum-critical vulnerability · Score treatment: score-reducing
Quantum blocker: No PQC algorithms used in any capacity
Assurance: The unofficial KOSASIH/pi-supernode claims Kyber/Dilithium integration but has no official standing.
Algorithm & Implementation Assurance
Independent cryptographic and implementation audit
Claim: No independent cryptographic audit of the core protocol or signature implementation exists.
Coverage basis: CertiK Skynet confirms 'Not Audited By CertiK' and '3rd Party Audit: No'. No audit from Trail of Bits, NCC Group, Least Authority, or any other cryptographic audit firm is documented.
Implementation score: 0 · Evidence confidence: High
Issue classification: assurance-only caveat · Score treatment: note-only
Assurance: Classified as note-only because an audit is not required for the quantum-vulnerability assessment to be conclusive — the vulnerability of Ed25519 to Shor's algorithm is a fundamental mathematical property, not an implementation uncertainty.
Coixa Wallet audit (96/100) is a wallet application audit, not a cryptographic protocol audit.
Algorithm & Implementation Assurance
Open-source, reproducible implementation
Claim: Pi Network publishes SDKs, explorer, and platform documentation on GitHub (pi-apps organization). The core consensus node implementation is not fully open-source.
Coverage basis: pi-apps GitHub has SDK, explorer, and docs. The consensus client source is not publicly available. The pidiscovery/pi repo (last updated 2020) is a BitShares derivative, not the current Stellar-based Pi Network.
Implementation score: 0.25 · Evidence confidence: Medium
Issue classification: quantum-critical uncertainty · Score treatment: score-reducing
Quantum blocker: Core consensus implementation is not open-source, preventing independent verification of cryptographic primitives
Assurance: Partial credit for open-source SDK, explorer, and platform components. The Smart Contract code was open-sourced on GitHub in April 2026 per MEXC reporting.
Without the consensus client source, the exact Ed25519 implementation details (library, parameters, potential modifications) cannot be independently verified.
Algorithm & Implementation Assurance
Parameter agility and future upgrade path
Claim: Pi Network has demonstrated protocol upgrade capability through sequential version upgrades (v19→v20→v21→v22→v23→v25) with governance voting. No quantum-specific upgrade path is documented.
Coverage basis: Protocol upgrade history demonstrates versioning capability. Node software supports automated updates (Windows) and manual updates (Linux CLI).
Implementation score: 0.25 · Evidence confidence: Medium
Issue classification: assurance-only caveat · Score treatment: note-only
Assurance: Protocol upgrade infrastructure exists but has never been used for cryptographic migration. The Stellar heritage means signature scheme changes would require a fork of the SCP implementation.
Partial credit for demonstrated upgrade capability. The governance voting mechanism (15.8M participants for Protocol v25) provides a coordination framework that could theoretically support future cryptographic migration.
Algorithm & Implementation Assurance
Stateful-signature safety, side-channel, fault-injection, state-management considerations
Claim: No PQC stateful-signature schemes (XMSS/LMS) are used, so state-management risks are not applicable to the current implementation. No side-channel or fault-injection analysis of the Ed25519 implementation is publicly documented.
Coverage basis: No PQC implementation exists. No side-channel analysis of the Ed25519 signing implementation is publicly available.
Implementation score: 0 · Evidence confidence: None
Issue classification: assurance-only caveat · Score treatment: note-only
Assurance: Classified as note-only because this subfactor primarily addresses PQC-specific risks (stateful signatures, novel side-channel vectors). For the current classical Ed25519 implementation, standard side-channel considerations apply but are not quantum-specific.
Would become relevant if XMSS/LMS or other stateful hash-based signatures were adopted for migration.
Algorithm & Implementation Assurance
Performance and resource-impact analysis
Claim: No performance or resource-impact analysis exists for any potential PQC migration path.
Coverage basis: No evidence of any PQC performance benchmarking, block-size impact analysis, gas/fee modeling, or node hardware requirement assessment.
Implementation score: 0 · Evidence confidence: None
Issue classification: assurance-only caveat · Score treatment: note-only
Assurance: Classified as note-only because the absence of a PQC performance analysis does not independently create a quantum-vulnerable path in the current production system.
Pi Network's mobile-first architecture and goal of supporting lightweight nodes would make PQC signature sizes (e.g., Dilithium at ~2.4KB, SPHINCS+ at ~8-49KB) a significant engineering concern requiring analysis before any migration.
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