Knowledge Base
Browse the concepts behind Truestamp. Follow the links between concepts, or search across everything.
Tagged: beacon
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Entropy
Printing a Beacon as a Proof-of-Life Artifact
How to print a Truestamp beacon as a lectern sheet or a lanyard badge so a photograph or recording that shows it cannot have been made before the beacon existed, covering the three form factors, the QR code target, printer settings, and the limits of what the paper proves.
Public Entropy Beacons
The public /beacons page that exposes a finalized Truestamp block hash as verifiable public randomness, the beacon fields and chain-link, the derived fairness tools, and how to download and verify a beacon proof.
Public Randomness Beacons
What a public randomness beacon is, the security properties that make it trustworthy (unpredictability, bias-resistance, public verifiability, availability), and how Truestamp folds public entropy into publicly verifiable blockchain evidence.
Time Page
The full-screen /time page, live Truestamp server time beside the latest entropy beacon, with a device clock delta, a sub-second subdial tuned to camera frame rates, a QR link, and an ambient rail streaming captured entropy into the next beacon, so a recording carries layered timing evidence.
Glossary
Beacon
A public, verifiable snapshot of the Truestamp chain, the hash of a finalized or committed block published on the public /beacons page as verifiable randomness and a moment-in-time marker, with four fields (id, hash, timestamp, previous_hash) and a stable permalink per hash.
Block hash
The SHA-256 digest (prefix 0x32) identifying a Truestamp block, binding its UUIDv7 id, previous-block hash, Merkle root, metadata hash, and signing-key ID; it chains blocks, is batched into epochs, published as a beacon, and committed by each item as its block witness.
NIST Randomness Beacon
The US National Institute of Standards and Technology public randomness service publishing cryptographically signed random pulses about once a minute in a tamper-evident chain, one of Truestamp's three entropy sources, captured by HTTP polling and re-verifiable by chain and pulse index.
Public randomness beacon
A service that periodically publishes unpredictable, bias-resistant, publicly verifiable random values everyone can observe; Truestamp both consumes external beacons such as the NIST Randomness Beacon as entropy and acts as one itself through the public /beacons page.