Confidentiality, compliance, sovereignty, performance, standards — everything enterprises need, nothing they have to compromise on. Built from scratch, not patched onto an existing chain.
Not a fork, not a sidechain, not a rollup. ATSHI rethinks the core architecture of what a blockchain can be.
Every identity, every product, every entity gets its own blockchain. No shared global state, no ordering bottleneck, no contention. Transactions validate in parallel — more nodes means more throughput, linearly. This is not sharding; it is a fundamentally different architecture.
Most blockchains tolerate 33% malicious nodes. ATSHI's ARCH consensus tolerates 90%+ thanks to unpredictable validator election via heuristic algorithms and rotating validation pools. Immediate finality — no forks, no reorgs, ever.
When a node fails, the network autonomously redistributes its validation responsibilities. No operator intervention, no downtime, no manual recovery. The network heals itself at protocol level, in real-time.
Nodes declare what they can do: GS1 resolver, FHE compute, IoT gateway, hosting. The network routes work to capable nodes automatically. Add a capability, the network uses it. No global upgrade required.
Enterprise-grade throughput with immediate finality — no batching, no waiting, no uncertainty.
Each node processes up to 250 transactions per second. With Transaction Chains enabling native parallelism, total network throughput scales linearly with node count. No global ordering bottleneck, no mempool congestion.
Transactions reach immediate finality in 50 to 500 milliseconds. No probabilistic confirmation, no block wait times. Once confirmed, a transaction is final — no reorgs, no rollbacks, no uncertainty.
Unlike traditional blockchains where adding nodes increases security but not throughput, ATSHI's architecture means more nodes = more throughput. Each new node adds validation capacity. No practical upper bound.
FHE computations are GPU-compatible — offload homomorphic operations to graphics hardware for massive parallel acceleration. Turns FHE from a research curiosity into a production-viable compute layer.
From homomorphic encryption to quantum resistance — security primitives that no other chain offers.
Compute on encrypted data without decrypting it. Smart contracts process confidential inputs and produce encrypted outputs. No trusted enclave, no multi-party ceremony — pure mathematics. Two backends: TFHE-rs (exact integers, 425ms/op) and OpenFHE (4 schemes: BGV, BFV, CKKS, TFHE). Scheme switching (CKKS ↔ TFHE) on-the-fly within the same transaction.
Not all-or-nothing. Each field in a transaction can be individually encrypted with AES-256-GCM for different recipients. A supply chain record can have public compliance data alongside encrypted supplier pricing. Granular privacy at the protocol level.
Native support for Ed25519 (high-speed), NIST P256 (government compliance), secp256k1 (EVM/Bitcoin), Falcon-512 (post-quantum), plus BLS12-381 and X25519. Every use case, every compliance requirement, one protocol.
The next public key hash is committed on-chain before the current key is used. Even if a quantum computer breaks the current curve, the attacker cannot exploit it. Combined with Falcon-512 post-quantum signatures, ATSHI is quantum-safe today, not someday.
Wallet → Keychain → Services. A single master seed generates infinite service-specific keys across multiple cryptographic curves. The keychain is encrypted (AES-256-CTR + ECIES) and stored on-chain — no cloud, no hardware wallet dependency.
Automatic key rotation with forward secrecy — compromising a current key reveals nothing about past communications. Combined with the next-key-hash model, the window of vulnerability is reduced to a single transaction.
9 independent security layers evaluated before execution. Fraud risk below 10⁻⁹ — the same standard as aviation safety systems. Protocol-level security, not application-level patches.
Native support for GS1, EPCIS, W3C DID, eIDAS 2.0, and cross-chain bridges.
The first blockchain with a built-in GS1 Digital Link resolver. Scan a QR code, resolve product data directly from the chain. Conforms to GS1 Resolver Community Standard v1.2.0, with RFC 9264 linkset responses, context-aware routing, and on-chain templates. No centralized resolver needed.
The global supply chain event standard — natively on Transaction Chains. EPCIS 2.0 captures What, Where, When, Why for every event (ObjectEvent, AggregationEvent, TransformationEvent, TransactionEvent). JSON-LD format maps directly to on-chain structured data. CBV 2.0 vocabularies. EU FMD, FSMA 204 compliant.
Smart contracts compiled to WebAssembly from Rust, C, or AssemblyScript. Sandboxed execution, deterministic gas metering. Hot-upgradeable thanks to Transaction Chains — deploy a new version as the next transaction on the contract's chain, no proxy pattern, no migration. And uniquely: FHE opcodes let contracts operate on encrypted data natively — no other VM has this.
Zero-knowledge bridges to Ethereum & Polygon — no trusted third party. Confidential cross-chain transfers via FHE + ZK proofs. Interoperate with the EVM ecosystem without compromising on sovereignty or privacy.
Only European nodes participate in validation. European hosting only. Not a policy — a protocol constraint.
Every node participating in validation and hosting is located in Europe — enforced at protocol level, not by policy. Geo-fenced validation pools, on-chain geographic attestations, cryptographic proof that data never leaves EU jurisdiction. No US Cloud Act exposure. Ready for SecNumCloud, HDS, and GAIA-X.
Not an afterthought. Hash preserved, payload destroyed after the configured retention period — automatically, at protocol level. Integrity proof remains on-chain while personal data is purged. No manual intervention, no compliance gaps.
Real tools, real integrations, real protocols — built for enterprises that need to ship.
Physical products get uncloneable cryptographic identity. NFC NTAG424 DNA chips generate a unique SUN message on every tap, verified on-chain in milliseconds. Works with any smartphone — no app required.
Constrained sensors (BLE, LoRa, Modbus) write directly on-chain via a native protocol gateway. Bulk provisioning, temperature, humidity, GPS — no middleware required. IoT data flows into Transaction Chains with the same immutability as any other transaction.
Host entire websites on the blockchain with native SSL, delta deploys, content verification, and GeoDNS distribution. No centralized hosting, no takedowns. Your website is as immutable as your transactions.
A 3-level naming system built into the protocol. Free subdomains (myapp.atshi.network), on-chain registered names via ATSHI Names, and a DNS bridge that connects your own domain (.com, .fr) to on-chain content with .arch TLD resolution. No Unstoppable Domains, no ENS fees, no third-party registrar — naming is a native protocol feature, included and free.
Production-ready SDKs in JavaScript/TypeScript, Java, Python, Go, C#, and Rust. 245 conformance tests, real-time event streaming (WebSocket, MQTT, Kafka, AMQP), Prometheus/Grafana metrics. Integrate ATSHI into any existing stack.
Smart Contract Events push to existing enterprise systems via WebSocket, MQTT, Kafka, and AMQP. No polling, no delays. Recall notices, supply chain updates, and compliance alerts propagate in seconds to ERP, WMS, and TMS systems.
Restrict validator election to a curated list of nodes — only European nodes, only your consortium's nodes, only certified infrastructure. Same ARCH consensus, same 90%+ BFT, but with geographic and organizational constraints on who validates your transactions. Sovereign by design, not by policy.
Organizations, departments, machines, IoT devices — all first-class citizens on the network with protocol-level access control.
Not just wallet addresses. ATSHI natively supports individuals, organizations, departments, machines (TPM/HSM), IoT devices (BLE/LoRa), and service accounts. Organizations are first-class network members with their own Transaction Chain.
16 fine-grained roles with 5 effects (Allow, Deny, Inherit, Delegate, Revoke) evaluated at consensus — before smart contract execution. Zero gas wasted on denied access. Transitive delegation with controlled depth. PKI bridge with X.509, LDAP, Active Directory.
Native W3C Decentralized Identifiers, FIDO2/WebAuthn passwordless authentication, verifiable credentials, and eIDAS 2.0 for legally recognized digital identity across the EU. Your blockchain identity becomes your universal login — no passwords to phish.
No garbage-in scenarios. Data is validated before it ever reaches your smart contract.
JSON schemas stored on-chain and validated at consensus BEFORE smart contract execution. Invalid data is rejected at protocol level — zero gas wasted. Auto-generated TypeScript, Java, Python types from on-chain schemas.
Dry-run validation before deployment, automatic snapshots, cursor-based instant rollback. Backward and forward compatible versioning. Safe schema evolution without downtime or data loss.
Native token & NFT creation at ledger level with policy contracts — not marketplace goodwill.
Tokens and NFTs created at the ledger level, not as smart contracts. No ERC-20/721 overhead, no reentrancy risks, no approval patterns. Policy contracts govern rules: whitelist, blacklist, time lock, geographic restriction, transfer caps.
Royalties enforced at protocol level, not by marketplace policy. Every transfer, every resale — royalties apply automatically. No wash trading workarounds, no marketplace hopping to avoid fees.
NFT metadata evolves autonomously based on on-chain events, time, or external triggers. A wine NFT ages. A real-estate token updates its valuation. A warranty token expires. Dynamic, living digital assets — not static JPEGs.
Sale prices verified homomorphically — 7 price verification models without revealing the actual price on-chain. Sealed-bid auctions, private OTC deals, confidential institutional trades. Zero front-running, zero information leakage.
Turn any smart contract read function into a paid API endpoint. Protocol-enforced fees, no billing intermediary.
Any read-only function becomes a paid API endpoint with protocol-enforced fees per call. No billing middleware, no API gateway. Transparent pricing stored in contract state. Co-signature reseller model with automatic commission splits.
FHE-encrypted trading positions on a public orderbook. Zero front-running, zero MEV extraction. Threshold liquidation evaluated homomorphically. Up to 20x leverage with encrypted margin requirements. Sub-second finality with no reorgs.
Confidentiality, compliance, sovereignty, performance, standards — ATSHI is a protocol designed from scratch to solve the problems that existing blockchains cannot.