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Proof of presence

Verify a Clox time record.

Clox links every clock-in and clock-out into a tamper-evident ledger and signs each record once signing is enabled for the account. Paste the verification bundle from a Clox proof export below to check, on your own, that the records were signed by Clox and haven't been altered or reordered. Nothing you paste is stored.

Verify it without trusting this page

Each record is an Ed25519 signature over an exact JSON string. Clox publishes its public key at /api/proof/public-key. An expert can verify any record against that key with standard tools, no Clox account required: SHA-256 the canonical string to get its hash, confirm the signature with the public key, and confirm each record's prev equals the previous record's hash. A gap in the chain or a failed signature means a record was added, removed, or changed.