OT-2026-000090939
Publication integrity record
Two cup vacuum gripper, two zone face, common isolation valve, plant vacuum fed, pressure sensor per zone, sustained blow-off before set-down, on a tool changer
This page is the evidence record. It changes as evidence arrives: a trusted timestamp, an independent retrieval, a custody deposit. The disclosure itself (/p/OT-2026-000090939) never changes.
Identity and time
| Publication number | OT-2026-000090939 · never reused |
|---|---|
| Internal UUID | 01a0ae9c-c011-755c-9e18-abf455ce29de · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-17T09:05:03.518217Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000090939 |
| Status | PUBLIC |
Content hashes
| Canonical text | 4ef637bfc3172cb9181211152a89caa2f3decb908bf52dd1cd864d03fc1c50c8 |
|---|---|
| Markdown | 6ba388c4eaeda05c6b50a8d60155267cfdc619d77db18bd87473009137298351 |
| Publication page | 3fe467ea50eaa3cc99680020bc539f92baca2de3adca8f3e7195a3ca8dc383c5 |
| Manifest | 52082a17c3d1f573ea3e14c467ec615d49f007e59db143b9df26a09ca6fa8958 |
SHA-256, lowercase hex, over the exact bytes of each published file. Every figure is hashed individually in the manifest.
Manifest signature
| Algorithm | Ed25519 · key
OT-SIGN-2026-01 · Verified |
|---|---|
| Signature | LuDvnRr3FY+IdvNrcRO1udYXKonqsWtKPc5UiMRjJUS+nP8Y3UKExOUgdeSFneUQu3FksMK47jLu/qg8hmPyDA== |
| Public key | /integrity/keys · every key we have ever used stays published |
Trusted external timestamp
| timestamp.digicert.com | 2026-09-17T09:07:03Z batch OT-TS-2026-W38-022 · RFC 3161 token · inclusion proof root 061e9ae86cc297cdce873398aaec3f72... |
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Independent retrieval
| 2026-09-17T09:44:07.014952Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000090939observed 3fe467ea50eaa3cc99680020bc539f92...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-09-17T09:44:06.996964Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000090939/manifest.jsonobserved 52082a17c3d1f573ea3e14c467ec615d...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-17T09:44:06.979363Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000090939/publication.mdobserved 6ba388c4eaeda05c6b50a8d60155267c...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-17T09:44:06.961020Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000090939/publication.txtobserved 4ef637bfc3172cb9181211152a89caa2...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
Requested from infrastructure separate from the publication system, over the public internet, with no credential. A MATCH means an ordinary internet client could fetch the publication and received exactly the bytes recorded above.
Independent archive
| External archive | Pending Canonical URLs are submitted to an independent archive in batches. |
|---|
A capture held by an outside archive is evidence that does not depend on OpenTechnical continuing to exist. It supplements the records above; it does not replace them.
Third-party custody
| Custody package | Pending Custody packages are produced weekly. |
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