OT-2026-000004842
Publication integrity record
Vacuum cup gripper, three zone face, pump fed, vented after set down, polyurethane cups
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-2026-000004842) never changes.
Identity and time
| Publication number | OT-2026-000004842 · never reused |
|---|---|
| Internal UUID | 01a0a925-0e93-7f88-a7ec-983f4e6a8ce1 · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-16T07:36:13.206042Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000004842 |
| Status | PUBLIC |
Content hashes
| Canonical text | dc3d161db20a8f4e887aa87dd6090e071602b984c547ebb08f77982d90d917e8 |
|---|---|
| Markdown | d5065d07fb58740722aea4d8d96de1d4371b26fd0aa475700ef936830a7b2cdc |
| Publication page | ee62c4e0d4aba39f5db6b5e121e938ec4a829a86bf0845abebbb550117d9d5c5 |
| Manifest | cbc18ee525c59ab9d63b89aa90ce03e479956c7dbba4abfb27989142320d9707 |
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 | Q4KnvePnfJw+0ScZ94EujsNKTcoDSPSHyn+TCmYULOjkhMb3KdDVl8wrGMrzLCa6ecU5qxMaH657GOg9zr/cDw== |
| Public key | /integrity/keys · every key we have ever used stays published |
Trusted external timestamp
| timestamp.digicert.com | 2026-09-16T07:47:02Z batch OT-TS-2026-W38-010 · RFC 3161 token · inclusion proof root e1b42dfa4cd0fb1e3e472afd2db961c2... |
|---|
Independent retrieval
| 2026-09-21T16:41:28.741342Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004842observed ee62c4e0d4aba39f5db6b5e121e938ec...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-09-21T16:41:28.694014Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004842/manifest.jsonobserved cbc18ee525c59ab9d63b89aa90ce03e4...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-21T16:41:28.642616Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004842/publication.mdobserved d5065d07fb58740722aea4d8d96de1d4...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-21T16:41:28.516132Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004842/publication.txtobserved dc3d161db20a8f4e887aa87dd6090e07...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-16T12:42:04.793670Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004842observed ee62c4e0d4aba39f5db6b5e121e938ec...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-16T12:42:04.560730Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004842/manifest.jsonobserved cbc18ee525c59ab9d63b89aa90ce03e4...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-16T12:42:04.322092Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004842/publication.mdobserved d5065d07fb58740722aea4d8d96de1d4...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-16T12:42:04.085373Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004842/publication.txtobserved dc3d161db20a8f4e887aa87dd6090e07...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 |
|---|