OT-2026-000052140
Publication integrity record
Two bellows cup vacuum gripper, two outlet manifold, common isolation valve, plant vacuum fed, manifold pressure sensor, 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-2026-000052140) never changes.
Identity and time
| Publication number | OT-2026-000052140 · never reused |
|---|---|
| Internal UUID | 01a0ae83-e78f-7b8a-9625-9c6b68c34be1 · 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-2026-000052140 |
| Status | PUBLIC |
Content hashes
| Canonical text | 49630814db4d963835f329c8add5e7184d323c6f4530ac41b889ea0c1407a2f9 |
|---|---|
| Markdown | fe8f893e291807ba891487d55634e31a10e55f4edf7b35d7ec537c0a0f6bdeec |
| Publication page | 9b8d0ad120a0af1d04cc5a88a8a46adf85379e0c0f9ce708e10f5178be22d347 |
| Manifest | 17fda5a0308b9c5e1a7918a783e39cef24a3a3b3247c6c96d2ea4807abb60a6b |
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 | tPfyxgGKZdxn3ytmZ3dXVIptBzfMBlpK0HuvBW1DcnRCZM+1gI0f5j1yy8S36stN5vZDjJ2li8Du0loFV66aBQ== |
| 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
| 2026-10-25T20:41:04.153087Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000052140observed 9b8d0ad120a0af1d04cc5a88a8a46adf...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-10-25T20:41:04.081639Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000052140/manifest.jsonobserved 17fda5a0308b9c5e1a7918a783e39cef...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-25T20:41:03.909750Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000052140/publication.mdobserved fe8f893e291807ba891487d55634e31a...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-25T20:41:03.821877Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000052140/publication.txtobserved 49630814db4d963835f329c8add5e718...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-28T08:41:59.647767Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000052140observed 9b8d0ad120a0af1d04cc5a88a8a46adf...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-28T08:41:59.570737Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000052140/manifest.jsonobserved 17fda5a0308b9c5e1a7918a783e39cef...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-28T08:41:59.474949Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000052140/publication.mdobserved fe8f893e291807ba891487d55634e31a...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-28T08:41:59.400263Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000052140/publication.txtobserved 49630814db4d963835f329c8add5e718...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 |
|---|