OT-2026-000028157
Publication integrity record
Two cup vacuum gripper, two 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-2026-000028157) never changes.
Identity and time
| Publication number | OT-2026-000028157 · never reused |
|---|---|
| Internal UUID | 01a0ae72-a520-74b7-87c6-eac094e4f301 · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-17T08:19:04.113553Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000028157 |
| Status | PUBLIC |
Content hashes
| Canonical text | ba02c181d3f2772fac81d17a77e06d8c4c11760c5fdf009b625754a9f60dd78c |
|---|---|
| Markdown | 6c2ec76ffe599fc7ff836c40f6800de8579c7c0492ebb1da350ca20683eb3ed5 |
| Publication page | b1ba70497be2c82d809167bca4612ec58a2fe251309828e3714410d59519d005 |
| Manifest | bb486872c8cfbf405a01cc6eb570d81ebe15632c983d27e898c938af2d3f6ac7 |
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 | vcNktN7/nNfsWO3YtS3m0UnEjwIDUhTvOrhX5vdXn6FTkf2rXotaalJJSCMA9w6IVc/hMk2SzePpws+/8BK7Dg== |
| 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
| 2026-10-31T04:41:40.976454Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000028157observed b1ba70497be2c82d809167bca4612ec5...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-10-31T04:41:40.885875Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000028157/manifest.jsonobserved bb486872c8cfbf405a01cc6eb570d81e...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-31T04:41:40.813089Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000028157/publication.mdobserved 6c2ec76ffe599fc7ff836c40f6800de8...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-31T04:41:40.736535Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000028157/publication.txtobserved ba02c181d3f2772fac81d17a77e06d8c...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-17T11:42:30.663564Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000028157observed b1ba70497be2c82d809167bca4612ec5...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-17T11:42:30.648364Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000028157/manifest.jsonobserved bb486872c8cfbf405a01cc6eb570d81e...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-17T11:42:30.632213Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000028157/publication.mdobserved 6c2ec76ffe599fc7ff836c40f6800de8...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-17T11:42:30.615698Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000028157/publication.txtobserved ba02c181d3f2772fac81d17a77e06d8c...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
| 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 |
|---|