01Intake
Finalize bytes/profile/custody; receipt differs from evidence readiness.
Archive ServiceMOBILE-ID · TRUSTED LTANS
Evidence Preservation Lifecycle
Seven control points from source freeze to disposition, with distinct guards, owners, artifacts and exceptions.
Seven lifecycle control points
Each point has distinct authority, guards and artifacts. Verification, holds and permission changes can recur; this is not a one-pass linear pipeline.
01 · Freeze source
| View | Content |
|---|---|
| Owner | Record owner |
| Guard | Bytes/revision, members, custody and rights |
| Artifact | Source inventory; no LTANS evidence yet |
| Exception | Missing data/rights: resolve before submission |
02 · Deposit
| View | Content |
|---|---|
| Owner | Archive Service |
| Guard | Authentication, profile, digest and idempotency |
| Artifact | archiveId/jobId receipt; not EVIDENCE_READY |
| Exception | HTTP disconnect: reconcile original transaction |
03 · Generate evidence
| View | Content |
|---|---|
| Owner | Evidence + Trust |
| Guard | Pinned input and approved TSA |
| Artifact | Stored/validated revision or explicit failure |
| Exception | TSA/storage failure never becomes success |
04 · Maintain
| View | Content |
|---|---|
| Owner | Renewal + Policy |
| Guard | Monitor risk, retention and reread rights |
| Artifact | Schedule/decision and continuation revision |
| Exception | HASH_TREE without bytes blocks |
05 · Use and verify
| View | Content |
|---|---|
| Owner | Record owner / verifier |
| Guard | Access rights and evaluation context |
| Artifact | Step report and scoped export |
| Exception | SUCCEEDED does not imply VALID |
06 · Transfer
| View | Content |
|---|---|
| Owner | Sender + recipient |
| Guard | Package, manifest, tools and acknowledgement |
| Artifact | Recorded responsibility-transfer point |
| Exception | Export completion is not recipient acceptance |
07 · Disposition
| View | Content |
|---|---|
| Owner | Data owner + approver |
| Guard | Retention, every hold, storage locks and backups |
| Artifact | Per-target outcome and retained residuals |
| Exception | Expiry never auto-deletes; partial failures retain checkpoints |
Cross-cutting controls
Legal Hold
Block disposition of case-scoped records until an authorized hold-release decision.
View service mechanics →
Data Custody
Three custody models, reread access and lifecycle data/key responsibilities.
View details →
Policy Governance
Versioned policy configuration, effective conditions and record-level history.
View details →
Operations & Assurance
Observe jobs, storage/TSA dependencies, incidents and post-recovery consistency.
View details →Four distinct time concepts
| Time | Interpretation |
|---|---|
| Business date | Source-declared issue/transaction date; retain provenance and authority. |
| Receipt time | Service records receipt; evidence generation may still be pending. |
| genTime | Time in a verified TSA token; check digest binding and source. |
| evaluatedAt | Report evaluation time; read with policy, evidenceVersion and trust context. |
An old source date does not create historical evidence. Retain the source date/provenance; receipt or a new token cannot establish historical attestation.
Explore the lifecycle map
01
02Generate evidence
Check digest/token/syntax, persist revision, then emit EvidenceGenerated.
Evidence Service
03Verify
Select revision/context; read steps/outcome rather than Job alone.
Verification Service
04Maintain
Assess risk/select mode and retain predecessor/successor history.
Renewal & Crypto-Agility
05Export and transfer
Recipient checks package/scope; acknowledgement does not delete source.
Export & Transfer
06Disposition
Check retention, all holds, authority and each target before effects.
Controlled DispositionTIMESTAMP
Prior evidence and suitable hash conditions; extend timestamp protection under the profile.
HASH_TREE
Needs originals, prior evidence and read/decrypt access; new digest/tree and timestamp.
The modes are conditional alternatives, not a mandatory sequence. Missing prerequisites stop/reconcile work; do not switch modes to hide failure.
Next steps
