The product, one screen deep.
NexBasira is a video-first inspection tool where every event in a session — joins, snapshots, annotations, whiteboards, signatures — lives in an append-only hash chain anchored to public timestamp authorities. Pick a sub-page below for the deep dive.
Audit chain + TSA anchoring
Per-session SHA-256 hash chain with a Postgres advisory lock for write serialisation. Cross-checked at session-end against three independent timestamp authorities: Tezos blockchain, RFC 3161 (FreeTSA), and OpenTimestamps (Bitcoin).
Read more →Composite + per-participant recording
LiveKit egress for the full composite (operator + field side-by-side) and per-participant audio + video files. Post-processed with annotated overlays burned in. S3 storage with configurable lifecycle (Glacier at 90 days for eIDAS retention).
Read more →In-session collaborative whiteboard
Excalidraw-based shared canvas every participant sees in real time. PNG + Excalidraw-state both anchored to the audit chain — tampering with either side fails verification.
Read more →eIDAS-tier signatures (SES / AES / QES)
Three tiers on the same audit-report PDF. QES gates behind KYB verification of the issuing organisation. PAdES B-T baseline today; PAdES B-LT for long-term verification on the v1.5 roadmap.
Read more →Public API + SDKs + embed widget
Four first-party SDKs (Node, Python, Embed iframe, React component) over a versioned REST API. Cursor pagination, Idempotency-Key headers, HMAC webhook signing, async-iterator helpers — the developer-experience pieces that should be there.
Read more →A session moves through five states, mirrored in the audit chain.
See it on your use case.
A 30-minute walkthrough on your own data + workflow.