1.5-2M BTC
estimated lost because owners forgot keys in 2025 research summarized by Ledger.
Ledger Academy
Non-custodial Bitcoin inheritance
Self-custody should not become a family dead end.
Satheir does not save wallet secrets and does not custody your assets. It stores the minimum inheritance workflow information needed to guide heirs through verified, offline recovery when the right conditions are met.
Private beta is active. Public registration stays closed until legal and support sign-off.
2.78-3.79M BTC
early Chainalysis work pointed to a large long-term inaccessible BTC range.
Chainalysis estimate via The Independent172,300
people worldwide held over USD 1M in crypto assets in Henley & Partners' 2024 report.
Henley & PartnersThe hard part
Inheritance fails when the secret is safe but the process is missing.
Self-custody gives the owner control, but it also makes recovery fragile. A family may know assets exist and still lack the timing, contacts, verification path, and offline instructions needed to recover them safely.
No wallet secrets
Satheir never asks the live service to store mnemonic words, private keys, xprv values, or complete shard contents.
No custody
Satheir does not move funds, sign transactions, or become the custodian of the wallet.
Minimum workflow data
It keeps the information needed to coordinate heirs, timing, verification, recovery notes, and audit milestones.
Owner prepares the route
Record heirs, confirmation timing, contact paths, shared phrase hints, and offline shard delivery notes before anything goes wrong.
Conditions open the gate
Recovery stays behind account, timing, and verification gates until the plan reaches the right state.
Heirs recover offline
Satheir guides the heir to instructions and a Recovery Kit, while key reconstruction happens locally outside the live service.