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CUSTODIAN / INSIGHTS

The Engineering
Behind Shared Control.

Research and field notes on model custody, confidential infrastructure and the conditions that make deployment possible.

RESEARCH & VALIDATION

Every signed surface an H100 produces, searched for the flag verifiers gate on. It is in none of them, and a device without the protection produces no report at all.

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Appraisal Claims22 claims searched
NOT NAMED
Signed Report16 opaque fields
0 OF 16 MOVED
Certificate ChainFive certificates
IDENTITY ONLY
Same Calls, Mode OffCapable device, feature off
NO REPORT
LIVE H100 CAPTURES · TWO DEVICES, ONE IN EACH STATE
RESEARCH & VALIDATION

When Model Artifacts Change,
Should Access Continue?

A closer look at three recorded GCP checks: modified encrypted weights, a mismatched model identity and corrupted filesystem blocks.

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Encrypted WeightsModified ciphertext
REJECTED
Model IdentityExpected digest mismatch
REJECTED
Filesystem BlocksCorrupted test-image block
READ REFUSED
RECORDED GCP CPU TESTS · SYNTHETIC FIXTURES

Looking for hardware configurations and the scope behind each result?

Read the Assurance Notes