Progress

Sam (Public) · TELL

Every completed lesson and claim is recorded as a link in a tamper-evident hash chain

Each attempt is fingerprinted with SHA-256, and each fingerprint includes the previous one. Change any past record and every later fingerprint stops matching — so progress can't be silently edited.

. Your records stay on this device's demo database — nothing here is shared.

Attempts

Passed

Attempts that met the 70% pass mark.

0/0

Average

Mean score across all your attempts.

Your verifiable chain

tell.chain

$ tell verify --learner current
genesis  00000000…0000
chain intact ✓  (0 links)

No attempts yet. Take a lesson quiz or try claim practice to start your chain.