afterprint®Open workspace Fragmented evidence.
One auditable
picture.
Afterprint ingests CCTV recordings, dispatch audio, witness statements, telemetry, and forensic reports. Our AI synchronizes timelines, links entities, flags contradictions, and drafts an incident reconstruction — where every single claim cites its exact evidence source.
Tamper-evident custody proofs and evidence hashes anchored to the Stellar blockchain. Authenticated solely via your Freighter wallet.
20:54:12 UTC · SECURE FEED
“The delivery arrived
shortly before nine.”
IMMUTABLE INGEST / CASE REF: AP-2026-001
The evidence intelligence platform for
investigations requiring a legally defensible record.
The evidence
is there.
Follow the thread.
A video file. A radio transmission. A timestamp that contradicts a witness statement. Bring every fragmented perspective into one synchronized view — without ever losing where each byte came from.
A workspace.
Not a wall of disconnected files.
Experience how Afterprint organizes fragmented evidence in real-time. Switch between the Timeline, Relationship Graph, Conflict Engine, and Grounded Case Q&A.
Synchronized Chronological Sequence
Events extracted from footage, audio dispatch, and statement records with precision tracking.
Every claim belongs
to exactly one category.
The AI never conflates facts with inferences, or sweeps contradictions under the rug. Every output is stamped with one of five categories — preserving integrity through every screen and report.
Directly supported by an authenticated evidence source. The CCTV footage displays the vehicle timestamped at 20:54:12 UTC. The door sensor log records an access trigger. No model inference or guessing is involved.
Guaranteed safety invariant: Afterprint never calculates a guilt score, suspect likelihood rating, or automated lie detection index. Exculpatory evidence is retrieved with the exact same threshold as inculpatory evidence. Human review is mandatory before any reconstruction is finalized.
From raw byte ingest
to cryptographically proven export.
Every transformation is registered as a derived artifact. Originals are immutable. Custody transfers are chained. Nothing can be modified after the fact.
01. Multi-modal ingest
Upload CCTV footage, dashcam video, radio dispatch audio, witness statements, PDFs, GPS logs, vehicle telemetry, and sensor exports. All formats are accepted without lossy re-encoding.
02. Cryptographic hashing
Every evidence file is SHA-256 hashed immediately upon intake. An immutable version is sealed in write-protected object storage. The original byte stream is never modified or overwritten.
03. Append-only custody log
Every action creates a custody event chained to the previous event hash: who uploaded, inspected, transferred, or exported the evidence. The chain is append-only and cryptographically tamper-evident.
04. Grounded AI extraction
Automatic transcription for audio and video with millisecond timestamp markers. OCR for scanned documents. Entity extraction across people, vehicles, locations, and time claims.
05. Synchronized timeline
Events across all disparate sources are mapped onto a unified timeline. Each event retains its source basis (device metadata, visible clock, statement) and precision level (Exact, Minute, Approximate).
06. Evidence relationship graph
Entities, locations, and events are linked in a navigable graph. Every edge represents an evidence connection and carries a direct pointer to the underlying source span.
07. Automatic conflict detection
When two or more sources make incompatible claims regarding timestamps, identities, or locations, a conflict is automatically flagged. Both sources are preserved for human inspection.
08. Grounded investigation Q&A
Query the entire case in natural language. Every answer is synthesized as atomic claims where each fact or inference cites the exact page, recording timestamp, or video frame.
09. Structured reconstruction
The system drafts an end-to-end incident reconstruction cleanly separating Verified Facts, Corroborated Claims, Inferences, Conflicts, and Unknown Gaps. Nothing is conflated.
10. Mandatory human review
An AI draft never becomes an official report automatically. Authorized investigators and legal reviewers must individually inspect and confirm claims before finalization.
11. Stellar blockchain anchor
Evidence manifests, custody head hashes, and finalized report hashes are anchored to Soroban smart contracts on the Stellar blockchain for decentralized, tamper-evident proof.
12. Auditable court bundle export
Generate cryptographic export packages containing evidence manifests, SHA-256 hashes, full custody history, citations, and finalized reports for disclosure and third-party audit.
Built so you can
verify it yourself.
Independently.
Every architectural decision assumes that Afterprint itself may be challenged under cross-examination. The cryptographic hash chain and decentralized Stellar anchors ensure that no administrator, model, or third party can tamper with historical evidence records undetected.
Every evidence file is hashed instantly upon ingestion. Any bit alteration or storage corruption is flagged immediately by automated integrity checks.
Each custody transfer or inspection is hashed together with the previous event hash. The chain is append-only and tamper-evident.
Evidence version manifests and custody head hashes are anchored into Soroban smart contracts on Stellar, establishing immutable third-party proof.
Raw case evidence is stored in versioned, write-protected object storage. No API endpoint possesses permissions to delete or overwrite originals.
Strict capability enforcement gates every action (View, Upload, Transfer Custody, AI Query, Finalize, Attest). Audit logs are append-only.
Every role, the
complete defensible picture.
From field investigators collecting footage to senior counsel presenting in court.
- Organize fragmented evidence across CCTV, audio, and documents
- Ask complex timeline questions in plain language with exact citations
- Identify critical blind spots and timeline gaps requiring follow-up
- Track the precise origin of every single factual claim in the case
- Maintain an unbroken, append-only chain of custody from intake
- Verify byte-level file integrity against recorded SHA-256 hashes at any time
- Register derived artifacts (transcripts, extracted frames) without modifying originals
- Audit access events and transfers with immutable cryptographic receipts
- Review each atomic claim against its cited video frame or document span
- Ensure inferences are never mischaracterized as established facts
- Sign off on finalized incident reconstructions with cryptographic attestation
- Generate courtroom-ready export packages with independent verification scripts
- Receive structured, auditable evidence reconstructions with zero guesswork
- Independently verify that no evidence was altered after submission
- Validate that custody events match the immutable Stellar blockchain anchor
- Audit the entire decision trail from raw ingest to final claim approval
What Afterprint
will never do.
We designed Afterprint to assist human judgment, not replace it. These non-negotiable invariants are enforced directly in our code architecture:
- ×Never calculate a guilt or innocence score.
- ×Never perform automatic lie detection or claim someone is lying.
- ×Never invent missing events to smooth over timeline gaps.
- ×Never present a model inference as an authenticated fact.
- ×Never perform biometric identification or facial recognition creep.
- ×Never finalize an incident report without explicit human reviewer sign-off.
- ×Never store raw case evidence bytes on the public Stellar blockchain.
- ×Never downgrade or deprioritize exculpatory evidence.
Truth leaves
a trace.
Authenticate securely with your Freighter Stellar wallet. No email address, no passwords, no trackable user accounts stored in proprietary databases.
Connect Freighter walletFreighter is a free, open-source Stellar browser extension. Get it at freighter.app