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Proofbox
Proofbox enables users to register personal devices like phones and laptops directly to the Ethereum blockchain while bypassing the friction of managing crypto wallets and paying gas fees
last checked Jul 12, 2026 · Unknown
CohortClass of 2026What it is
Proofbox enables users to register personal devices like phones and laptops directly to the Ethereum blockchain while bypassing the friction of managing crypto wallets and paying gas fees. Device serial numbers are stored on-chain while attachments are preserved on IPFS, creating a tamper-proof digital identity for physical hardware.
HTTP liveness
9 probes since Jun 16Jun 16Jul 12
AliveHard-dead (404/5xx/parked)RedirectedUnverified (timeout/DNS/block)
Observed events
probes · press · GitHub- Jun 16, 2026First probe — unverifiedUnknown
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Pulse Indexobserved activity
9 probes0 pressGitHub –Tranco –
Not enough observed signals for a Pulse Index (needs 2+ signal families).
Cohort survival · Class of 2026weekly
550 products launched in 2026 · 100% still active
550 active0 sunset
Still active
100%
Median lifespan
4.9y