Blockchain anchoring (hash proofs)
While encrypted data protects privacy, users still need a way to prove integrity. Solident uses blockchain anchoring to store hash proofs, creating tamper-resistant evidence that biometric templates and pattern data have not been altered.
"What you lock today will still be verifiable tomorrow."
How it works
Hash creation
A cryptographic hash is generated from the encrypted biometric template or pattern hash.
The hash represents the data’s fingerprint without revealing the data itself.
On-chain anchoring
The hash is written to the blockchain as a permanent record.
This makes it immutable and verifiable by anyone.
Verification
When data is used, the system recalculates the hash.
If it matches the on-chain proof, the data is confirmed authentic.
Security Advantages
Integrity guaranteed: No attacker can modify data without breaking the hash.
Transparent verification: Anyone can confirm that data has not changed.
Privacy preserved: Only the hash is public, never the actual biometrics.
Blockchain anchoring gives Solident a foundation of immutability and trust, ensuring that identity data remains verifiable long into the future.
Last updated