Chain Verification
Cryptographic proof · Block integrity · Transaction lookup
Chain Height
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Total Transactions
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Circulating Supply
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Hash Chain Integrity
Each block's previousHash is verified against the actual hash of the preceding block.
Checking…
Block Proof
Enter a block number to inspect its full cryptographic record.
Network Certificate
Issued
July 27, 2026
Network Status
OPERATIONAL
Signature Algorithm
ML-DSA65 / CRYSTALS-DilithiumNIST FIPS 204
01.About these standards
COGNITUM™ is built on ML-DSA65 (NIST FIPS 204), with SLH-DSA (FIPS 205) available as an optional scheme, the post-quantum digital signature standards finalized by the US National Institute of Standards and Technology in August 2024. These are the same standards the US government selected for federal systems. COGNITUM™ is currently running a public testnet. Every transaction signature is verifiable above. Private keys never leave the user's browser.