Free Quantum-Resistant Timestamping API (Dual-Signature and Bitcoin)
SasaSavic.ca recently launched a public cryptographic timestamping service designed to remain verifiable even in a post-quantum world. The platform uses SasaSavic Quantum Shield™, a dual-signature protocol combining classical and post-quantum security. Each submitted SHA-256 hash is: • Dual-signed with ECDSA P-256 and ML-DSA-65 (per NIST FIPS 204) • Anchored to the Bitcoin blockchain via OpenTimestamps • Recorded in a public, verifiable daily ledger API (beta, no auth required): https://sasasavic.ca/beta-api/ Example curl request: curl -X POST…
Free Quantum-Resistant Timestamping API (Dual-Signature and Bitcoin) launched on November 5, 2025 with 5 votes, #4,178 of 9,796 launches that month and more than 75% of that year's launches.
What it does
In the maker’s words, at launch
SasaSavic.ca recently launched a public cryptographic timestamping service designed to remain verifiable even in a post-quantum world. The platform uses SasaSavic Quantum Shield™, a dual-signature protocol combining classical and post-quantum security. Each submitted SHA-256 hash is: • Dual-signed with ECDSA P-256…
Does a similar job
all alternatives →
SasaSavic Quantum Shield™Nov 2025 · sasasavic.ca · ▲6Quantum-secure timestamping for verifiable digital proofs
Neptune.io, A self-healing platform to fix server alerts automatically2014 · neptune.io · ▲66Neptune is a quantum-safe layer 1 blockchain combining zk-STARKs and PoW consensus. Private by default, programmable, and built for global scale
Forward Email – Open-Source Quantum Safe Encrypted Email Service2023 · forwardemail.net · ▲35Get free email forwarding for custom domains. Send & receive as [email protected] with unlimited aliases, 10GB storage, IMAP/POP3/SMTP & 100% open-source security. Trusted by 500K+ users. Setup in 2 minutes.
Quantum-LatticeJul 2026 · quantum-lattice.futuristicai.co.za · ▲3Post - Quantum Blockchain (ML-DSA-65)
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