THE SAPPHIRE CREDENTIAL
Aeternum Key Ltd. United Kingdom
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AETERNUM SECRET: CRYPTONIGHT
Aeternum Secret Product:
Cryptonight
Release Date
2027
Product Branch
Seed | Wallet
Our crypto-specific product. It protects a relatively small recovery payload - seed and wallet recovery information.
But the value is not data capacity.
While being a passive non digital physical recovery process using the high specification attributes of Sapphire, Cryptonight eliminates the DIY manufacturing weakness or the reliance on cloud or data servers.
We do not ask you to trust that your physical backup was recorded
correctly. We verify it.
The architecture includes:
- Established BIP39 recovery information
- SLIP39 threshold-separated shares where appropriate
- Three isolated production Sapphires
- No single production location receiving enough information to reconstruct the complete secret
- Independent read-back of every finished sapphire
- Professional independent Solicitor witnessing and sealing
- Client-controlled distributed storage
- Open recovery rather than permanent reader dependence, although our reader is provided for rapid recovery.

