OT-2026-000059544
Publication integrity record
Single bellows cup vacuum gripper, three stage ejector, sustained 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-2026-000059544) never changes.
Identity and time
| Publication number | OT-2026-000059544 · never reused |
|---|---|
| Internal UUID | 01a0ae89-ec23-7a7d-8821-74538f66ae3b · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-17T08:44:29.732559Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000059544 |
| Status | PUBLIC |
Content hashes
| Canonical text | 2e3d4c24f25015ac4f4a6dd20eb9765ac319dbfa96e0314fe05d2422e60ea712 |
|---|---|
| Markdown | 24708af4a8821ccb36b8688aa9fb0e98a0dcfba30e2a72fdc6311b0d8a340f14 |
| Publication page | bcfb8884b3c606c67859af85d07fe338e0132801413183b269568474acc5daff |
| Manifest | 9ca22b71bb71b4eb1f101ee67d588463bd3cdb189f9df33a84fd1a6a67de907f |
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 | dJ3kYrSyIg3YTI+BXmO6suxDBTkBaay3yPuLK83fpz0USihd0/dOaIWnVYUg0vMlhBHGLle99XxQHnPnYV8RDg== |
| Public key | /integrity/keys · every key we have ever used stays published |
Trusted external timestamp
| timestamp.digicert.com | 2026-09-17T08:47:04Z batch OT-TS-2026-W38-021 · RFC 3161 token · inclusion proof root 954df3475fbcfbe27467725cfb2ec919... |
|---|
Independent retrieval
| 2026-10-16T08:41:09.746732Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000059544observed bcfb8884b3c606c67859af85d07fe338...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-10-16T08:41:09.694783Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000059544/manifest.jsonobserved 9ca22b71bb71b4eb1f101ee67d588463...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-16T08:41:09.644627Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000059544/publication.mdobserved 24708af4a8821ccb36b8688aa9fb0e98...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-16T08:41:09.517728Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000059544/publication.txtobserved 2e3d4c24f25015ac4f4a6dd20eb9765a...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-17T16:42:50.724322Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000059544observed bcfb8884b3c606c67859af85d07fe338...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-17T16:42:50.417046Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000059544/manifest.jsonobserved 9ca22b71bb71b4eb1f101ee67d588463...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-17T16:42:50.153225Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000059544/publication.mdobserved 24708af4a8821ccb36b8688aa9fb0e98...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-17T16:42:49.926844Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000059544/publication.txtobserved 2e3d4c24f25015ac4f4a6dd20eb9765a...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 |
|---|