OT-2026-000020179
Publication integrity record
Four bellows cup vacuum gripper, four zone face, plant vacuum fed, pulsed blow-off 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-2026-000020179) never changes.
Identity and time
| Publication number | OT-2026-000020179 · never reused |
|---|---|
| Internal UUID | 01a0ae6f-4379-7799-8302-c3ea0696a72e · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-17T08:15:22.507199Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000020179 |
| Status | PUBLIC |
Content hashes
| Canonical text | 2ff87fa7ac2be6e67738ba8d8f8969d61ceb71e6cb523c248578e5b62fb088b4 |
|---|---|
| Markdown | 8239d4d4cf756c38c228e35375c9c857378ec4b8c63e9b289191cb96f7240f21 |
| Publication page | c4d01392a8066dd8c765675f871ccd902ce29fe69037a7bcc4ea4ba355a4c656 |
| Manifest | 9f4097b3438c9d49457698bd7098cd7ccbaef4a5f383370a06d827ff7e9557f0 |
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 | KJIFwp1cUCWhD5hXsJyYSkUICun480d8JwVqrv/8C8TGPGReUu2jSXi5CkaFVQmf4LLmRPwfmmTMPvgbCeKGAA== |
| 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
| 2026-09-17T08:43:39.252614Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000020179observed c4d01392a8066dd8c765675f871ccd90...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-09-17T08:43:38.770107Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000020179/manifest.jsonobserved 9f4097b3438c9d49457698bd7098cd7c...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-17T08:43:38.278727Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000020179/publication.mdobserved 8239d4d4cf756c38c228e35375c9c857...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-17T08:43:37.722968Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000020179/publication.txtobserved 2ff87fa7ac2be6e67738ba8d8f8969d6...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
| Custody package | Pending Custody packages are produced weekly. |
|---|