OT-2026-000030438
Publication integrity record
Four pad foam vacuum gripper, four outlet manifold, pump fed, manifold pressure sensor, sustained blow-off before set-down
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-2026-000030438) never changes.
Identity and time
| Publication number | OT-2026-000030438 · never reused |
|---|---|
| Internal UUID | 01a0ae73-e503-71d9-8a5a-91a7e33a660b · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-17T08:20:26.007257Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000030438 |
| Status | PUBLIC |
Content hashes
| Canonical text | b4d56f3572dc9f1993c74c60e6857752204142aff59ca9beccd553ca02f0e02a |
|---|---|
| Markdown | 0299809f6f24594c87ef162afcf05998b9f5325b485cde3eb04e2167dad4ea1f |
| Publication page | 01f57ede30d996578fa4b41b71ddf08e86efa22dc961f2c08a413bffdeb0c362 |
| Manifest | 687daa8e17e475916c9ffd0ebd7a0e99f615265ddb4ed947896ee1cfb457b5f5 |
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 | bfg0vhEGWfTQZqjByTzDB0z6N+4Q/8y5RtfxH2ysumKVr3hDETgZiNzO1fscrbHTAETRfzGqGbhBbi0NYtyXBg== |
| 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
| 2026-10-16T00:41:51.556200Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000030438observed 01f57ede30d996578fa4b41b71ddf08e...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-10-16T00:41:51.472374Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000030438/manifest.jsonobserved 687daa8e17e475916c9ffd0ebd7a0e99...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-16T00:41:51.391615Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000030438/publication.mdobserved 0299809f6f24594c87ef162afcf05998...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-16T00:41:51.286962Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000030438/publication.txtobserved b4d56f3572dc9f1993c74c60e6857752...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-01T20:41:14.744547Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000030438observed 01f57ede30d996578fa4b41b71ddf08e...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-01T20:41:14.657089Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000030438/manifest.jsonobserved 687daa8e17e475916c9ffd0ebd7a0e99...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-01T20:41:14.560955Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000030438/publication.mdobserved 0299809f6f24594c87ef162afcf05998...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-01T20:41:14.418674Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000030438/publication.txtobserved b4d56f3572dc9f1993c74c60e6857752...fetched by grabo-systems from 34.44.131.203, 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
| OT-CUSTODY-2026-W38 | OpenTechnical-Custody-2026-W38.tar.zstf2fc69d02142424a578267e5e3a6d3bb... · 402,218,449 bytes · held by held on site pending an external custodian · retention permanent |
|---|