OT-2026-000021971
Publication integrity record
Foam pad vacuum gripper, two zone face, common isolation valve, pump 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-2026-000021971) never changes.
Identity and time
| Publication number | OT-2026-000021971 · never reused |
|---|---|
| Internal UUID | 01a0ae6f-bb5b-7f1f-a2b2-4f1ca4d04b6b · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-17T08:15:53.201585Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000021971 |
| Status | PUBLIC |
Content hashes
| Canonical text | 78c234d614f3bb15c903289ad395538a373b1db174200ab4ccbc431f43bb6476 |
|---|---|
| Markdown | d1eaac619bc8ac65342536be9450ca130a7fcb14c46f4385a8011754e8555c27 |
| Publication page | 9e2b5ada82472c4626a40789c7fe48aa4189da7af2ba1bec6809b53ca017cdfa |
| Manifest | 9c8311d8443b64113660c5613551113798a081f8ae4d090fa3729629a5e2c337 |
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 | wtV/53lPRPWUTjAFZzawK4uD8LQ5qxctSYnzfvrhoZyCudKJWo6doLiZt6EfDDvbcROAH42wgWznQxpueveODw== |
| 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
| 2026-09-17T11:54:38.548655Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000021971observed 9e2b5ada82472c4626a40789c7fe48aa...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-09-17T11:54:38.530949Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000021971/manifest.jsonobserved 9c8311d8443b64113660c56135511137...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-17T11:54:38.512018Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000021971/publication.mdobserved d1eaac619bc8ac65342536be9450ca13...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-17T11:54:38.494394Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000021971/publication.txtobserved 78c234d614f3bb15c903289ad395538a...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. |
|---|