OT-2026-000090951
Publication integrity record
Two bellows cup vacuum gripper, two zone face, common isolation valve, 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-2026-000090951) never changes.
Identity and time
| Publication number | OT-2026-000090951 · never reused |
|---|---|
| Internal UUID | 01a0ae9c-c011-7667-9177-595af5365586 · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-17T09:05:03.518217Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000090951 |
| Status | PUBLIC |
Content hashes
| Canonical text | a2dedd639c816e98e540fad612fb92f05bc0dddf5d38d3336c16db8f0867d6f2 |
|---|---|
| Markdown | 865523e36f5f66e9b35910e45661a5ebbd2a2403c9eb023dfee417623b7b7f28 |
| Publication page | 5518739858e0cf9207a375834411c461acb49321e1beb248560224fc93b17213 |
| Manifest | 3bbbb44471f7bb6af43528290e1d4da862348a17fcff8d92617e34bfe03d0cfe |
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 | ZJw1wnbTCWhnW7wReKzqBL2Kl08RnCiP2+v0btMuzO3vVLVY7RD5qeT1EyVCLTvJJnqGC1Kwkz1LGPZs5xtNBg== |
| 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
| 2026-09-17T20:41:04.494822Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000090951observed 5518739858e0cf9207a375834411c461...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-09-17T20:41:04.348835Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000090951/manifest.jsonobserved 3bbbb44471f7bb6af43528290e1d4da8...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-17T20:41:04.158209Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000090951/publication.mdobserved 865523e36f5f66e9b35910e45661a5eb...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-17T20:41:03.854012Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000090951/publication.txtobserved a2dedd639c816e98e540fad612fb92f0...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-17T09:44:10.311529Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000090951observed 5518739858e0cf9207a375834411c461...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-17T09:44:10.295442Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000090951/manifest.jsonobserved 3bbbb44471f7bb6af43528290e1d4da8...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-17T09:44:10.277688Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000090951/publication.mdobserved 865523e36f5f66e9b35910e45661a5eb...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-17T09:44:10.258733Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000090951/publication.txtobserved a2dedd639c816e98e540fad612fb92f0...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. |
|---|