Chain of custody you can prove.
Evidence is sealed at intake with hardware-derived signatures, so custody is provable rather than asserted. Time-locked escrow releases settlements, wills, and disclosures exactly when they should open.
Chain of custody is still mostly an affidavit: a person asserting that nobody touched the evidence. Opposing counsel attacks the gaps, and digital evidence makes the gaps wider, since copies are silent and metadata is editable.
Sealing at intake binds evidence to custodial hardware and signs every transfer into a chain where each entry covers the hash of the last, so tampering is not discouraged but mathematically self-evident. Escrowed instruments such as wills and settlement terms open at the agreed moment without any custodian holding a key that could leak early.
Tamper-evident, hash-chained custody log
Each entry signs the hash of the previous one inside the signature itself. Reordering, inserting, or deleting an entry invalidates the entire chain mathematically.
Time-locked release of escrowed documents
Wills, settlements, and disclosures are sealed against a time-lock that matures on the agreed date. No custodian holds a key that could open them early.
Zero-knowledge integrity proofs for the court
Prove a document is intact and untouched since intake without exposing privileged content to the other side or to the court itself.
Custody becomes a proof you file, not a story you tell.