OT-2026-000020215
Publication integrity record
Four cup vacuum gripper, four zone face, plant vacuum fed, pulsed 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-2026-000020215) never changes.
Identity and time
| Publication number | OT-2026-000020215 · never reused |
|---|---|
| Internal UUID | 01a0ae6f-4379-7f69-94b3-bd8145097829 · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-17T08:15:22.507199Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000020215 |
| Status | PUBLIC |
Content hashes
| Canonical text | f572ba3a13c3cc12bd39eff159d3337d970b3e1c8cdb9dc401251346864bbfa0 |
|---|---|
| Markdown | d2a009089c5bbc21fb4b0875413a3e35a1b4888453861b7d79c24fac239f9f6d |
| Publication page | 8c8e79852c680bf5ad154ae41326d4ff1e58aa6b6d320d73beefb8ab60a41748 |
| Manifest | 88f3973de6f161e80f4d490dfea43dbd7659f49737be15e8407e370f645d7d63 |
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 | Nrx87L/m9m3Sfcki4rTAiY/1f5BYwtY42H8K5HdxD4ykelbIXtR1m7EdOjXD6ktIj2pMapoXnHnAU1LvPQ5cDA== |
| Public key | /integrity/keys · every key we have ever used stays published |
Trusted external timestamp
| timestamp.digicert.com | 2026-09-17T08:42:32Z batch OT-TS-2026-W38-020 · RFC 3161 token · inclusion proof root 7c99e0163c3f1d2dc0f1dec0442e2af7... |
|---|
Independent retrieval
| 2026-09-17T11:56:30.524255Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000020215observed 8c8e79852c680bf5ad154ae41326d4ff...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-09-17T11:56:30.475311Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000020215/manifest.jsonobserved 88f3973de6f161e80f4d490dfea43dbd...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-17T11:56:30.455728Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000020215/publication.mdobserved d2a009089c5bbc21fb4b0875413a3e35...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-17T11:56:30.405548Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000020215/publication.txtobserved f572ba3a13c3cc12bd39eff159d3337d...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. |
|---|