OT-2026-000052389
Publication integrity record
Single cup vacuum gripper, common isolation valve, single stage ejector, vented 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-2026-000052389) never changes.
Identity and time
| Publication number | OT-2026-000052389 · never reused |
|---|---|
| Internal UUID | 01a0ae83-e792-7dc0-94af-9c0e02068ae8 · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-17T08:37:55.233643Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000052389 |
| Status | PUBLIC |
Content hashes
| Canonical text | 2dd69ee57cabbd87cd3dccd5bdcaff7f5ecff880fcb56f2c50199b94972a6cc6 |
|---|---|
| Markdown | d703ebb0cdf76a18a36b52e528efd39962cf68e9df9df66f616550c96f740736 |
| Publication page | ef5ab7ca2fbf6e39efb11a964b3ff0c79befe0d010caea7fd18c8826c62673ab |
| Manifest | 985fd0652f4552b628475e03347de8e4763e139baada17772961f77315d8deac |
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 | 3f+HQxwoTklW0J4i1TN7+Od4I3UVhXMs8BoBP/O1TkPyhHycmtl4/nmUoggDavkLONpDWa6fFihfLjpsoZCOAQ== |
| 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... |
|---|---|
| timestamp.digicert.com | 2026-09-17T08:42:32Z batch OT-TS-2026-W38-020 · RFC 3161 token · inclusion proof root 7c99e0163c3f1d2dc0f1dec0442e2af7... |
Independent retrieval
| 2026-10-29T08:41:36.339176Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000052389observed ef5ab7ca2fbf6e39efb11a964b3ff0c7...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-10-29T08:41:36.256299Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000052389/manifest.jsonobserved 985fd0652f4552b628475e03347de8e4...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-29T08:41:36.175324Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000052389/publication.mdobserved d703ebb0cdf76a18a36b52e528efd399...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-29T08:41:36.100662Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000052389/publication.txtobserved 2dd69ee57cabbd87cd3dccd5bdcaff7f...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-30T00:41:03.848376Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000052389observed ef5ab7ca2fbf6e39efb11a964b3ff0c7...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-30T00:41:03.775456Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000052389/manifest.jsonobserved 985fd0652f4552b628475e03347de8e4...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-30T00:41:03.710004Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000052389/publication.mdobserved d703ebb0cdf76a18a36b52e528efd399...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-30T00:41:03.653721Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000052389/publication.txtobserved 2dd69ee57cabbd87cd3dccd5bdcaff7f...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 |
|---|