OT-2026-000004541
Publication integrity record
Porous face vacuum gripper, common isolation valve, two outlet manifold, 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-2026-000004541) never changes.
Identity and time
| Publication number | OT-2026-000004541 · never reused |
|---|---|
| Internal UUID | 01a0a91b-61cd-76b5-86eb-bef5be3cf95a · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-16T07:25:39.151916Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000004541 |
| Status | PUBLIC |
Content hashes
| Canonical text | d90d06cb49ba9fb37a504ec18e6e96be4d2383a2644dcce036147db7ec450c71 |
|---|---|
| Markdown | 142a51d700f9f7380cd95bfcfa239cdca871ec9074da999338d485cea071172a |
| Publication page | 462094085fcb41a7ab911e3530f0f05cd4dbe25b6c25bbe6ad0e86fc2c6d1634 |
| Manifest | cdd6fbd25798897d0b71a8173557c9f069a508cff9455f00d254b6acf626423c |
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 | FbS2PvcYluG+dA88sr4MAotjlS3Fsc743g7+11xXcznFQq2YwCMsrH+E53YbH0A9VdNxvRheqhUNt5IwGcuLBQ== |
| 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
| 2026-09-16T07:30:16.705857Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004541observed 462094085fcb41a7ab911e3530f0f05c...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-09-16T07:30:16.692392Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004541/manifest.jsonobserved cdd6fbd25798897d0b71a8173557c9f0...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-16T07:30:16.679985Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004541/publication.mdobserved 142a51d700f9f7380cd95bfcfa239cdc...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-16T07:30:16.667021Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004541/publication.txtobserved d90d06cb49ba9fb37a504ec18e6e96be...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. |
|---|