SasaSavic Quantum Shield™
Quantum-secure timestamping for verifiable digital proofs
3 followers
Quantum-secure timestamping for verifiable digital proofs
3 followers
Prove a file existed with quantum-resistant dual signatures (ECDSA P-256 + NIST-standardized ML-DSA-65). Hash locally (SHA-256), dual-sign ledger entries, anchor to Bitcoin via OpenTimestamps. First known publicly accessible (as of October 2025) quantum-resistant timestamping service.
