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# Base Requirements

## For Quorum Based Operations
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* [Air-gapped bundle](/generated-documents/level-2/fixed-location/provisioner/air-gapped-bundle.md)

* Minimum of 2 [Operators](/system-roles.md#operator)

    * [Personal PGP key pair](/key-types.md#personal-pgp-keypair) for each operator

* Tamper-proofing equipment

* Both operators should print photographic evidence from digital cameras which is stored in a PGP signed repository. The photographs should be of the top and underside of the vacuum sealed object.

    * The operators should verify the commit signatures of the photographs they are printing against a list of permitted PGP keys found in the "ceremonies" repo

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