Giornalismo & Whistleblowing

Gridcoin Blockchain Stamping

http://u4embjw2uzwpdubgm72ywbmixte4kqgwurc4r4rp6elhlokutdfsy4id.onion
Online · ultimo controllo 27/05 18:14 EN Indicizzato il 31/03/2026

Stamp documents permanently on the Gridcoin blockchain. Drop a file in the browser, the SHA-256 hash gets written to the chain, the document itself never leaves your device.

Estratto
Notarize documents with the Gridcoin blockchain Stamping a document on the Gridcoin blockchain creates a publicly verifiable record that it existed at a specific time. Any later edit, even a single bit, produces a different hash, so tampering shows up immediately. More about how it works . To notarize a document or verify it later, drag and drop the file below. The service is free to use. Select f
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