OT-2026-000004308
Publication integrity record
Porous face vacuum gripper, three zone face, per zone isolation, pump fed, pressure verified
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-2026-000004308) never changes.
Identity and time
| Publication number | OT-2026-000004308 · never reused |
|---|---|
| Internal UUID | 01a0a913-872c-7005-9f4b-6c4e79458f82 · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-16T07:17:04.431406Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000004308 |
| Status | PUBLIC |
Content hashes
| Canonical text | a69418d4425b860afb128ac0644b9fbafbbebb018d4663c55a4d15fae503bd18 |
|---|---|
| Markdown | 0bc4a0fd33b06adad7a049ec76a15ff47e347c3c072a6e42ff4873932117c4e5 |
| Publication page | 4ec6abf0c41a32ed192c7e84cafd0480f1a31ab68fd6c259ac8c89bc6b48b31c |
| Manifest | 09f4a4985e6dca49416e771a96d117917251bbc52f58ee2df68508a6000df187 |
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 | yGSR/ZFweLgzCfXURVl38pA6/ZqD489k158CGNSW1OMmuT3QD23zjghfw13wm/dD92Bu0sEwR58l5RHawkn/AA== |
| Public key | /integrity/keys · every key we have ever used stays published |
Trusted external timestamp
| timestamp.digicert.com | 2026-09-16T07:27:02Z batch OT-TS-2026-W38-009 · RFC 3161 token · inclusion proof root aada101caea153fd76622afa3661a5b8... |
|---|
Independent retrieval
| 2026-09-16T07:20:12.628113Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004308observed 4ec6abf0c41a32ed192c7e84cafd0480...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-09-16T07:20:12.491973Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004308/manifest.jsonobserved 09f4a4985e6dca49416e771a96d11791...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-16T07:20:12.478134Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004308/publication.mdobserved 0bc4a0fd33b06adad7a049ec76a15ff4...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-16T07:20:12.463826Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004308/publication.txtobserved a69418d4425b860afb128ac0644b9fba...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. |
|---|