The Category Is Forming Now
EternaX is the institutional settlement layer for auditable privacy, DeFi composability, and market-speed execution, built on the only post-quantum-native architecture in production. It is EVM-compatible: existing Solidity DeFi protocols deploy with minimal modifications and automatically inherit PQ security and institutional privacy. Built on SPHINCS+ (NIST FIPS 205) and the SILMARILS 160-byte information-theoretic authentication record. The only quantum-resistant blockchain delivering all three institutional requirements from genesis.
Over $317 billion in stablecoins and $36 billion in tokenized real-world assets sit on blockchain rails that NIST has proposed to deprecate by 2030 (see the Already Broken report for the full institutional audit across 27 named institutions with zero post-quantum migration plans). Every major chain carrying institutional capital loses 84–90% of its throughput under post-quantum signature migration. Solana confirmed a ~90% collapse on a live testnet. Ethereum models at −84%. Canton drops to sub-1 TPS. The privacy protecting institutional flows on those chains expires the moment the underlying keys break, retroactively exposing every historical settlement to harvest-now-decrypt-later adversaries. No chain in production today delivers institutional privacy, DeFi composability, and post-quantum security simultaneously.
This week, a joint research team from the University of British Columbia and EternaX Labs published the formal proof that eliminates that cost curve: SILMARILS: Information-Theoretic and Quantum-Secure Designated-Verifier Signatures (arXiv:2605.03230; companion blog post), a 160-byte post-quantum authentication record with information-theoretic security, proven in the Random Oracle Model, the Quantum Random Oracle Model, and the Pure Information-Theoretic model. Three independent demand signals are converging simultaneously, each validated by the largest financial institutions in the world, and creating a new infrastructure category that no existing chain can own.
Privacy. Canton Network proved Goldman Sachs, BNY Mellon, and Broadridge will not settle institutional value on transparent rails. JPMorgan Kinexys, BNY tokenized deposits, and the BIS unified ledger thesis all require selective visibility. MiFID II, MAR, and GDPR make public-by-default rails structurally non-compliant.
DeFi Composability. DTCC called collateral mobility the institutional “killer app.” Broadridge processes $384 billion in daily repo on DLT. Aave Horizon proved idle tokenized RWAs are a capital efficiency failure. The demand: programmable collateral substitution, atomic DvP, and tokenized cash reuse inside one controlled boundary.
Post-Quantum Security. Google Quantum AI compressed the qubit threshold to fewer than 500,000 (March 2026). NIST proposed deprecating ECDSA by 2030. NSA CNSA 2.0 requires quantum-safe systems by January 2027. Project Eleven confirmed ~90% TPS loss on Solana under PQ migration (April 2026). Coinbase’s Advisory Board recommended immediate migration planning.
The next institutional settlement layer must deliver all three from day one. Private DeFi composability without post-quantum security is a more sophisticated form of migration debt: it lets institutions build the next capital-market stack privately, but still on cryptography they will have to replace later. When the keys break, the privacy breaks with them, retroactively exposing every historical flow to harvest-now-decrypt-later adversaries. The category that wins is private, DeFi-composable market infrastructure where the privacy itself is quantum-durable. That is EternaX.
Why No One Else Can Own This
The following matrix scores every major chain and institutional platform against the three requirements. The bar is strict: "Yes" means the capability exists in production architecture today, not on a roadmap or in a research paper.
| Chain / Platform | Institutional Privacy | DeFi Composability | Post-Quantum Native | Throughput Under PQ | Score |
|---|---|---|---|---|---|
| Ethereum | No Public by default | Yes Strongest DeFi ecosystem | Partial Roadmap 2029; L2s/contracts not covered | ~4.1 TPS (-84%) | ●●● |
| Solana | No Public by default | Yes High-throughput DeFi | No No roadmap; testnet only | ~85.5 TPS (-90%) Confirmed live, Apr 2026 |
●●● |
| Canton Network | Partial Privacy benchmark, but not PQ-safe. Ed25519 keys break → all historical flows retroactively exposed (HNDL) | Partial No global state root; bilateral sync | No Ed25519/ECDSA/P-256 in production | ~0.84 TPS (-88%) | ●●● |
| JPM Kinexys | Partial Bank-controlled private, but not PQ-safe. Classical crypto; retroactive exposure risk | Partial Closed rail; JPM counterparties only | Partial QPADL research paper, not production | Not disclosed | ●●● |
| Circle Arc | Partial Opt-in; testnet stage | Partial Stablecoin-native; testnet stage | Partial Roadmap; "not yet available" | Not disclosed | ●●● |
| ZKsync Prividium | Partial Selective disclosure, but not PQ-safe. Inherits Ethereum's classical crypto | Partial Ethereum-anchored | No Inherits Ethereum 2029 timeline | Inherits Ethereum | ●●● |
| Hyperliquid | No Public by default | Yes Fastest perps execution | No secp256k1; no PQ roadmap | Not survivable | ●●● |
| Aave Horizon | No Public Ethereum | Yes Strongest RWA collateral utility proof | No Inherits Ethereum | Inherits Ethereum | ●●● |
| Stellar | No Public by default | Partial Limited DeFi primitives | No Ed25519; no PQ roadmap | ~13.9 TPS (-90%) | ●●● |
| eternaX | Yes Tiered selective disclosure; per-tx unlinkability; no ZK overhead; PQ-safe and quantum-durable | Yes EVM-compatible; any Solidity DeFi protocol deploys with PQ + privacy; full-stack venues; collateral mobility | Yes Hash-only crypto; SPHINCS+ anchor; SILMARILS 160B; ~2% TPS loss | 50,000+ TPS (~2% loss) | ●●● |
Sources: Project Eleven / Solana Foundation (Apr 2026) for Solana PQ testnet TPS. EternaX Labs internal benchmarks for EternaX TPS. All other PQ throughput figures modelled from signature size expansion ratios vs. reported baseline throughput. “Yes” = production deployment; “Partial” = live with material gaps; “No” = absent or roadmap only.
The pattern is unambiguous. No chain achieves more than two of three. And where privacy exists on classical rails, it is not quantum-durable: Canton, Kinexys, and Prividium all run classical cryptography whose keys will break, retroactively exposing every historical flow to harvest-now-decrypt-later adversaries. That is not institutional-grade privacy for assets with 10-to-30-year horizons.
Ethereum targets PQ by 2029 at the earliest, covering only the base layer while L2s, smart contracts, and admin keys remain exposed. Solana confirmed a ~90% throughput collapse under PQ signatures on a live testnet. Hyperliquid runs secp256k1 with no PQ roadmap. JPMorgan's QPADL is a research paper, not a deployed ledger. Circle Arc explicitly states PQ features are "not yet available."
The white space is not "someone should build a PQ chain." It is that the institutional settlement layer for the next decade requires all three simultaneously, and no existing player occupies that intersection. EternaX is the only architecture that delivers all three from genesis.
IC Objection: “Ethereum will just upgrade to PQ by 2029”
Even if Ethereum completes base-layer PQ migration by 2029, every asset issued on its rails between now and then accumulates cryptographic migration debt: wallet upgrades, custody re-platforming, exchange coordination, compliance re-certification, and liquidity fragmentation. L2s, smart contracts, and admin keys are not covered. The throughput haircut is permanent: NIST PQ signatures are kilobyte-order. “Upgrade later” is a multi-year coordination event that forces issuers to underwrite a future flag-day across the entire asset lifecycle and a permanent throughput tax. EternaX avoids both: PQ-native from day one, at market speed, zero migration debt.
This white space is not waiting. NIST proposed deprecating ECDSA by 2030. NSA requires all new national security systems quantum-safe by January 2027. Google compressed the qubit threshold from 20 million to fewer than 500,000 in five years. The regulatory pipeline (GENIUS Act, CFTC tokenized collateral pilot, SEC/CFTC joint rule, NY UCC Article 12) is actively pushing more institutional capital onto the vulnerable rails documented above. Seven FINRA-registered broker-dealers are distributing institutional products on chains with no disclosed PQ migration plan. The category is crystallizing now, not in two years.
How EternaX Delivers All Three From Genesis
Privacy: Quantum-Durable Institutional Confidentiality
EternaX provides tiered selective disclosure: institutions control exactly what is revealed, to whom, and when. Per-transaction unlinkability is achieved without zero-knowledge overhead. The SILMARILS 160-byte record authorizes transactions to validators during consensus without creating the reusable public-key artifacts that turn transaction histories into account graphs for external observers. The critical differentiator: every privacy-critical component derives from PQ-safe primitives. The privacy does not expire under quantum threat. Canton, Zcash, and Monero all run classical cryptography whose privacy collapses retroactively when keys break. EternaX is the only architecture where confidentiality is quantum-durable by construction: confidential to the market, auditable to the right party, and permanent.
DeFi Composability: EVM-Compatible Institutional DeFi with Collateral Mobility
EternaX is fully EVM-compatible. Existing Solidity DeFi protocols deploy with minimal modifications and automatically inherit PQ security and institutional privacy. No cold-start problem: the developer ecosystem already exists. Tokenized cash, funds, collateral, lending, perpetuals, and settlement all operate within one PQ-native, privacy-preserving execution boundary. A stablecoin issued under one arrangement can collateralize a position under another without leaving the PQ-safe perimeter or exposing trade details. Full-stack market venues (prediction markets live, perpetuals next) with 20-50ms soft finality and T+0 settlement at 400-520ms. Built-in MEV protection: transaction intent stays confidential, eliminating the visible-orderflow extraction that costs institutions billions annually on public chains.
Post-Quantum Security: Hash-Only Crypto Stack
The entire stack is hash-based. No elliptic curve pairings, no BLS, no KZG, no Groth16. SPHINCS+ (NIST FIPS 205) serves as the PQ identity anchor. SILMARILS provides the 160-byte on-chain authentication record (128-byte signature + 32-byte receipt), achieving a 49x reduction versus standalone SPHINCS+. The permanent record has information-theoretic security: forgery probability ~1/2255, independent of any computational hardness assumption. TPS loss under PQ operation: ~2%, versus 84-90% for every alternative.
Business Model: Institutional Infrastructure Monetization
EternaX's business model is institutional infrastructure monetization. The same capital flow is monetized at multiple touchpoints across the stack: issuance, routing, trading on first-party venues, settlement, and compliance-grade privacy connectivity. The structural advantage over existing L1 business models is threefold. First, issuance lock-in: stablecoins and RWAs are long-duration liabilities, and once issued PQ-native the issuer avoids migration debt permanently, creating structural retention at the asset layer. Second, privacy-driven switching costs: once institutional capital routes through auditable privacy lanes, switching to transparent rails means information leakage, a cost that rises with scale. Third, two acquisition engines: net-new PQ-native issuance and migration-to-safety from existing vulnerable chains. The flywheel compounds: issuance creates balances, balances deepen venues, venues create volume, privacy keeps large flows sticky.
The SILMARILS Paper: From Roadmap to Proof
SILMARILS: Information-Theoretic and Quantum-Secure Designated-Verifier Signatures (arXiv:2605.03230, May 2026). Co-authored by UBC School of Engineering and EternaX Labs. Open-source Rust implementation with benchmarks on GitHub.
The key insight: blockchains collapse three jobs into one cryptographic object (identity, authentication, auditability). SILMARILS separates them. SPHINCS+ handles PQ identity. SILMARILS handles 160-byte designated-verifier authentication during consensus. A 32-byte receipt enables public verification after finality. It is not a drop-in replacement for standardized PQ signatures; it is the authentication layer of a protocol designed from first principles.
The paper provides formal security proofs across three models (two-party designated-verifier, three-party broadcast, and pure information-theoretic), including explicit reductions against quantum adversaries in the Quantum Random Oracle Model. The proofs reduce to standard, well-studied cryptographic assumptions. Full technical details are in the paper and the companion blog.
The permanent on-chain record achieves information-theoretic security at 160 bytes. It does not rely on any hardness assumption remaining computationally intractable. For assets with 10-to-30-year compliance horizons, that is a fundamentally different security posture from any computational PQ scheme.
Six months ago, the SILMARILS claim was a roadmap item. Today it is a formal cryptographic construction with security reductions and proofs against quantum adversaries, co-authored with a Principal's Research Chair at a major research university. The paper is available on arXiv (arXiv:2605.03230). The concrete ledger integration is coming in a separate companion publication. That is a material change in the investability of this infrastructure bet: the primitive is proven, the protocol design exists, and the research pipeline is active.
The Market and the Moment
Privacy Demand
- Canton Network (Goldman, BNY, Broadridge)
- JPM Kinexys
- BNY Tokenized Deposits
- BIS Unified Ledger
- MiFID II / MAR / GDPR
DeFi Composability Demand
- DTCC Collateral Mobility
- BNY / Goldman Tokenized MMFs
- Broadridge $384B Daily Repo
- Aave Horizon $440M+ Deposits
- Citi $1.9T Stablecoin Forecast 2030
PQ Security Demand
- Google Qubit Compression <500K
- NIST ECDSA Deprecation 2030
- NSA CNSA 2.0 Jan 2027
- CISA "Year of Quantum Security"
- Project Eleven ~90% TPS Loss
Private DeFi-Composable Market Infrastructure with PQ-Native Security
$2.87T conservative to $5.56T by 2030 in institutional value requiring all three
The addressable market encompasses the full stack of assets being issued on blockchain rails today that will require migration. Citi projects $1.9T in stablecoin issuance by 2030 ($4.0T bull case). BCG estimates tokenized funds at $600B+ AUM by 2030. US/EU repo outstanding exceeds $25T combined. The institutional subset requiring privacy, composability, and PQ security is the majority: collateral mobility, intraday margin, DvP settlement, and treasury management are precisely the use cases where information leakage is unacceptable and cryptographic longevity is non-negotiable.
The exposure surface is growing. The GENIUS Act, CFTC tokenized collateral pilot, SEC/CFTC joint rule, and NY UCC Article 12 are all pushing more institutional capital onto quantum-vulnerable rails. Seven FINRA-registered entities are distributing institutional products on chains with no PQ migration plan. Fidelity launched FIDD on Ethereum mainnet in February 2026, after NIST finalized PQ standards, with no disclosed PQ roadmap. New issuance on vulnerable rails is a choice being made today.
The category is crystallizing now. The institutions that move first on PQ-native private composable infrastructure will own the settlement layer for the next generation of market infrastructure. Every quarter of delay compounds migration debt for the assets already on the wrong rails and narrows the window for the assets that have not yet been issued.
Traction and Execution
The SILMARILS paper has four co-authors from UBC's School of Engineering and one from EternaX Labs. An open-source Rust reference implementation with benchmarks is on GitHub. The paper is cryptographic construction with formal security proofs against quantum adversaries, backed by a team that ships working infrastructure, available on arXiv (arXiv:2605.03230).
EternaX's institutional research programme includes the Already Broken quantum risk report (Q1 2026, 27 named institutions, zero PQ plans) and the Cryptographic Migration Debt framework for institutional digital asset programmes. The SILMARILS paper is the third major output in that pipeline.
Founding Team
EternaX is built by researchers and protocol engineers working at the intersection of post-quantum cryptography, confidential execution, high-performance consensus, and coded networking.
Our architecture is anchored in peer-reviewed research and ongoing cryptographic development, ensuring the network evolves with advances in both security and distributed systems.
Frequently Asked Questions
Is EternaX post-quantum safe?
Yes. EternaX is a quantum-resistant blockchain built on NIST post-quantum cryptography from genesis. The entire cryptographic stack is hash-based, anchored by SPHINCS+ (NIST FIPS 205, SLH-DSA), the most conservative NIST post-quantum standard. The SILMARILS authentication record provides information-theoretic security at 160 bytes, meaning the permanent on-chain record does not depend on any computational hardness assumption. EternaX is PQ-native: it does not require migration from classical cryptography because it never used classical cryptography. TPS loss under post-quantum operation is approximately 2%, compared to 84-90% throughput loss measured on Ethereum, Solana, Canton, and Stellar under post-quantum signature migration.
How does EternaX compare to Canton Network?
Canton Network is the current institutional privacy benchmark, used by Goldman Sachs, BNY Mellon, and Broadridge. However, Canton runs classical cryptography (Ed25519, Curve25519, P-256, RSA-2048) with no post-quantum deployment in production. When those keys are broken by a quantum computer, Canton's privacy collapses retroactively, exposing every historical settlement flow to harvest-now-decrypt-later adversaries. EternaX matches Canton's institutional privacy model (tiered selective disclosure, per-transaction unlinkability, auditable confidentiality) while adding post-quantum-native security and DeFi-composable collateral mobility across a single quantum-safe boundary. Canton also lacks DeFi composability for cross-application collateral movement and lending, which EternaX provides natively through EVM compatibility.
Is EternaX EVM compatible?
Yes. EternaX is fully EVM-compatible, meaning the entire battle-tested Solidity developer ecosystem and existing DeFi protocols (lending, perpetuals, AMMs, yield aggregators) can deploy on EternaX with minimal modifications. Deployed protocols automatically inherit post-quantum security, institutional-grade privacy, and MEV protection. This eliminates the cold-start problem that new Layer 1 blockchains typically face: EternaX does not need to build a DeFi ecosystem from scratch because Ethereum's ecosystem can port directly. Institutions get access to familiar DeFi primitives (collateral reuse, lending, atomic settlement) inside a compliance-native, quantum-safe boundary.
What is the SILMARILS signature scheme?
SILMARILS (Secure Information-theory-Leveraged Mechanism for Authentication and Receipt-Integrated Lightweight Signatures) is a 160-byte designated-verifier signature scheme with information-theoretic security, published in May 2026 on arXiv (2605.03230). It was co-authored by researchers at the University of British Columbia (Hassan Khodaiemehr, Khadijeh Bagheri, Chen Feng) and EternaX Labs (Dariia Porechna). SILMARILS separates three functions that traditional blockchain signatures combine: SPHINCS+ handles post-quantum identity, SILMARILS handles compact transaction authentication verified by validators during consensus, and a 32-byte receipt enables independent public verification after finality. The permanent on-chain record is 49 times smaller than standalone SPHINCS+ and achieves forgery probability of approximately 1/2^255.
Can existing blockchains upgrade to post-quantum?
In principle, yes. In practice, the cost is commercially prohibitive. Post-quantum signatures are 10x to 123x larger than classical ECDSA signatures. Project Eleven and the Solana Foundation confirmed a ~90% throughput loss on a live Solana testnet under post-quantum migration (April 2026). Ethereum models at approximately 84% throughput loss. Canton Network drops to sub-1 TPS. This is what EternaX calls "cryptographic migration debt": the accumulated future cost of remediating tokenized infrastructure whose cryptographic assumptions become obsolete. Every new asset issued on a quantum-vulnerable chain after NIST finalized post-quantum standards (August 2024) compounds that debt. EternaX avoids migration debt entirely because it is post-quantum-native from day one.
What is cryptographic migration debt?
Cryptographic migration debt is a framework developed by EternaX Labs to quantify the institutional cost of operating blockchain infrastructure on cryptographic algorithms scheduled for deprecation. NIST proposed deprecating ECDSA and EdDSA by 2030 and disallowing them by 2035. Every stablecoin, tokenized fund, custody record, and settlement proof issued on chains using those algorithms creates migration debt that compounds with adoption. The cost includes throughput loss (84-90% for most chains), signature size expansion (up to 123x), coordination across validators and smart contracts, legal and compliance re-certification, and liquidity fragmentation during migration. EternaX's full institutional risk framework is published at eternax.ai.