OT-2026-000042928
Publication integrity record
Single bellows cup vacuum gripper, pump fed, pulsed blow-off after 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-2026-000042928) never changes.
Identity and time
| Publication number | OT-2026-000042928 · never reused |
|---|---|
| Internal UUID | 01a0ae7a-c0d1-7efc-b5bf-d74f789940f4 · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-17T08:27:55.489038Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000042928 |
| Status | PUBLIC |
Content hashes
| Canonical text | 0f2c1e06f77031d47fc51847609f0923080ebd7764154573f63c8ca1898c73c3 |
|---|---|
| Markdown | f7ea7e07c1819001a2b56d25098376f512d26e6b3384021ce263afc0fb2b1727 |
| Publication page | 4523acdfb7cf2f452e3b3efb357d851b8ab7e097275642d77724d7b0828469e1 |
| Manifest | bb58a0e900d7fe87a3b9def918abe52e15f4129bfb0274571ce4c07e59980a7a |
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 | AXTxTTIekFMssm7Lzv291QyfhT4mHY8Qe5lWtBmfRNcSXdr2+Tw/4XBqep5NgmGDT2SPkX5ev58WlOEGKEfsBA== |
| 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
| 2026-09-17T11:15:27.362188Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000042928observed 4523acdfb7cf2f452e3b3efb357d851b...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-09-17T11:15:27.342055Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000042928/manifest.jsonobserved bb58a0e900d7fe87a3b9def918abe52e...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-17T11:15:27.322074Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000042928/publication.mdobserved f7ea7e07c1819001a2b56d25098376f5...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-17T11:15:27.302573Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000042928/publication.txtobserved 0f2c1e06f77031d47fc51847609f0923...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. |
|---|