OT-2026-000003991
Publication integrity record
Bellows cup vacuum gripper, pump fed, pressure verified, contact triggered
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-2026-000003991) never changes.
Identity and time
| Publication number | OT-2026-000003991 · never reused |
|---|---|
| Internal UUID | 01a0a90c-7f59-7329-aebb-75f5d520ee7f · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-16T07:09:23.676054Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000003991 |
| Status | PUBLIC |
Content hashes
| Canonical text | 483d701950b871dc748d217042ea7ecf39dc7db666835413f448d7f31d36ed93 |
|---|---|
| Markdown | d9d25f57027717682827f6316bab92b797bfd32f93fafad1fab39f37d25ec995 |
| Publication page | 6a4fe6b54f1275823375874d38b2212a2ccfb94a9623fcfe0edbf93e9508a8b6 |
| Manifest | adf1cf349e416ab501cc9e249ea93a3ceaf8a3dc21f46167135c33e111e868a9 |
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 | +vWfPFiV3ApkLvESUXSElAV/TJdOeSxSllxlaxOQRTZaUZyMILRwElT4QPNjA/7U5mWTN/mUmkuVtT8yhvZvCw== |
| 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
| 2026-09-16T07:10:07.717294Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000003991observed 6a4fe6b54f1275823375874d38b2212a...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-09-16T07:10:07.692015Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000003991/manifest.jsonobserved adf1cf349e416ab501cc9e249ea93a3c...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-16T07:10:07.677990Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000003991/publication.mdobserved d9d25f57027717682827f6316bab92b7...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-16T07:10:07.665121Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000003991/publication.txtobserved 483d701950b871dc748d217042ea7ecf...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. |
|---|