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Card 761 of 9992026-09-02 issue

Observed arrival · 2026-09-02

Sentinel, the AI credential that stays out of sight

sentinelsubnet.com Observed source
Editorial interest 84/100 Selection signal · not a rating of the site

Sentinel lets AI agents use production credentials inside hardware-attested AMD SEV-SNP enclaves without exposing the credentials to the agent, host, operator, cloud provider, or Sentinel.

Landing page captured for the 2026-09-02 issue.

Field notes

The design separates credential custody from execution: the user runs the broker, approves an image hash, and receives signed responses from code running in an AMD SEV-SNP enclave. The public testnet is identified as Bittensor netuid 554, while the page reports 900 challenges across nine miners. Its own limitations are unusually explicit: live miners still use software hardware stand-ins, and approved-image rotation remains unresolved.

Observed signals

Read the marks

Editorial observations of this landing page, not a rating.

OpenPublic substance visible
PrettyNotable craft visible
ProPolished or operationally mature
NicheUnusually specific use

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sentinelsubnet.com

Landing page observed 2026-09-02. The live site may have changed.