OT-2026-000090438
Publication integrity record
Three cup vacuum gripper, three zone face, pump fed, pressure sensor per zone, sustained 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-2026-000090438) never changes.
Identity and time
| Publication number | OT-2026-000090438 · never reused |
|---|---|
| Internal UUID | 01a0ae9c-7f2e-7044-9113-e49603b7d077 · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-17T09:04:46.997728Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000090438 |
| Status | PUBLIC |
Content hashes
| Canonical text | 1c6272758da52500625f1c7fd94a7e5b941836751ce5654ab3e5d146a9884879 |
|---|---|
| Markdown | eaefb435560a37d5e34fc874d3b231386790bfc60ac226248530cf9e054251ee |
| Publication page | 44260227b3eed9eef49629d21cd10292cd1a19422032b1bcafacb3f87829bf7c |
| Manifest | ea8503bec9be9720fac32c4ee649d9b7a2af2d823df0fe5b6ccdb6c976e6ecb7 |
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 | DsRBtyZX+hw0F/3WzLxQsrMq7XloJINtsQZl+ipmm/LYuolB1uiEi//Yp3r9igEB1UlygqHpozdAuI4Af5UbAA== |
| Public key | /integrity/keys · every key we have ever used stays published |
Trusted external timestamp
| timestamp.digicert.com | 2026-09-17T09:07:03Z batch OT-TS-2026-W38-022 · RFC 3161 token · inclusion proof root 061e9ae86cc297cdce873398aaec3f72... |
|---|
Independent retrieval
| 2026-10-03T08:41:18.579539Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000090438observed 44260227b3eed9eef49629d21cd10292...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-10-03T08:41:18.416166Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000090438/manifest.jsonobserved ea8503bec9be9720fac32c4ee649d9b7...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-03T08:41:18.252633Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000090438/publication.mdobserved eaefb435560a37d5e34fc874d3b23138...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-03T08:41:18.066383Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000090438/publication.txtobserved 1c6272758da52500625f1c7fd94a7e5b...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-23T20:41:18.605375Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000090438observed 44260227b3eed9eef49629d21cd10292...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-23T20:41:18.532590Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000090438/manifest.jsonobserved ea8503bec9be9720fac32c4ee649d9b7...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-23T20:41:18.437406Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000090438/publication.mdobserved eaefb435560a37d5e34fc874d3b23138...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-23T20:41:18.266118Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000090438/publication.txtobserved 1c6272758da52500625f1c7fd94a7e5b...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 |
|---|