Discover ATL Protocol: Secure Cryptographic Log Standard

Discover ATL Protocol: Secure Cryptographic Log StandardDiscover ATL Protocol: Secure Cryptographic Log Standard

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Dmitrii Zatona

• Apr 10

ATL Protocol -- Cryptographic Audit Trail Standard

ATL Protocol is an open cryptographic standard for privacy-preserving, verifiable, append-only logs. Built on RFC 6962/9162 Merkle trees, RFC 8032 Ed25519, RFC 8785 JCS canonicalization, RFC 3161 TSA anchoring, and Bitcoin OpenTimestamps.

Core idea: log operators store data privately, only cryptographic roots anchor externally. Every entry gets a self-contained Evidence Receipt (.atl file) -- verifiable offline, without contacting the server or trusting the operator.

Two-level architecture: Data Trees aggregate into a Super-Tree, enabling O(log N) consistency proofs across the full log history. Two receipts from any two parties cryptographically prove the log history between them was not altered.

Trust comes exclusively from external anchors -- TSA or Bitcoin -- not from operator keys. A valid receipt with one verified anchor is trustworthy even if you've never seen the operator's public key.

Reference implementation: atl-core (Rust, Apache 2.0). Spec at atl-protocol.org.

Architecture Rust Software Architecture

Daniel Mazhara

pro

• Apr 24

Built the MVP for TEFS Crypto Trading Simulator in just 6 days.

What started as a fast validation prototype became a full mobile crypto trading platform with:

• real time crypto market data • trading simulation engine • challenge & progression systems • portfolio tracking • risk management logic • scalable backend infrastructure

The main challenge was building a responsive trading experience that stayed stable under constant live market updates while keeping the UX clean and mobile friendly.

Now the platform is structured for future scaling: funded accounts, advanced analytics, trader stats, leaderboards, and expanded crypto systems.

Fast MVP execution without turning the product into technical debt later.

Rahul Patel

pro

• Apr 24

Airship is a real-time engagement platform that uses APNs to deliver event-driven, stateful user experiences. It manages multi-stage lifecycles (pre-event, active, post-event) and continuously updates user-facing content through push-based triggers and scheduled workflows.

The system combines APNs updates, event processing, and time-based orchestration to keep user data in sync across a session.

This directly aligns with Apple Wallet requirements, where a pass or Live Activity needs to be updated dynamically over time via APNs, based on events like trip status, timing, and user activity.