The playback below is rendered from a real sealed tape — the film above is its poster.
This is not an animation. It is the playback of tape-genesis-002 — a real recording of the zday reference estate. Each frame was hash-chained and Ed25519-signed as it was recorded, and the tape's birth was witnessed by the estate's running receipt chain. Nothing you see can be injected, edited, reordered or backdated after the fact.
The complete tape — every full frame, the manifest, and the verifier — ships with this page. Three commands on any machine with Python, no account, no trust:
frames.jsonl (the sealed recording) · manifest.json (frame count, tail seal, file hash, witness anchor) · tape_verifier.py · seals.py
python tape_verifier.py <tape-dir>
It re-walks every frame: crc tripwire, keyed chain seal, Ed25519 signature, predecessor links, frame sequence, manifest hash, witness anchor.
Delete a frame. Flip one byte. Swap two frames. The verifier names the exact frame where the chain dies. That is the answer to "how do we know the recording wasn't doctored?"
| Tape fact | Value (from the signed manifest) |
|---|---|
| Tape | — |
| Recorded | — |
| Frames sealed | — |
| Tail seal | — |
| Tape file sha256 | — |
| Birth witnessed by | — — the tip of the estate witness chain at recording time; the tape cannot be backdated |
Honest boundary: this page renders selected fields copied verbatim from the sealed frames (agent ledger, chain status, scan counts). The complete frames — the full estate snapshot per tick — are in the downloadable tape itself.
Point any incumbent console at the same machine and ask the five verification questions. Then ask this tape. The difference is the wall — and what the wall protects.
| The question | Behind the badge | This tape |
|---|---|---|
| Can you export the raw evidence behind an alert? | Partial console views; raw collection stays in the vendor cloud. | The full frames download with this page. |
| Can you verify the record wasn't modified after collection? | No public verifier; integrity is an audit-trust claim. | crc tripwire + keyed chain seal + Ed25519 signature per frame. |
| Can you see which rule, which version fired? | Detection logic is proprietary and unversioned to you. | Rule/model/taxonomy versions ride in every receipt. |
| Can a third party check without an account? | No. | Three commands, stdlib Python, no account, no trust. |
| If you leave the vendor, does your evidence leave with you? | History lives in their cloud. | The tape is a folder. It is yours. It verifies without us. |
The badge certifies that someone audited their process once. The tape lets anyone check the evidence itself, any day, forever. That is what the wall protects: the fact that you could never check their work.