OT-2026-000028917
Publication integrity record
Single cup vacuum gripper, common isolation valve, pump fed, supply line pressure sensor, sustained 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-2026-000028917) never changes.
Identity and time
| Publication number | OT-2026-000028917 · never reused |
|---|---|
| Internal UUID | 01a0ae73-2a9d-700b-8692-e11413b37f60 · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-17T08:19:38.288761Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000028917 |
| Status | PUBLIC |
Content hashes
| Canonical text | b0ee0eb3771ab8ddaee416754de205785ca2fd7e87eb6bd5c1b9f7e3e3ef8fa5 |
|---|---|
| Markdown | f6953d846132d0970d545c052e5545bc1e5c2ab326ad723b84857c38f60ebac0 |
| Publication page | c9c811d527e1232e266f3a498af002a68bed298bbe76d4e34abc84b8466fae0f |
| Manifest | d8aeb0cfdce91a7337969f991d71bb7baf72daab88c636060f0f5b209ddb0082 |
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 | SGagiPMg3qvQVKnivxfttgnK16olNmDY35S9Rxz0bLUlXtwZEheVoy5x4Q0rEWPRDYuzi5L7Dj3T8JPs/aq9Bw== |
| 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
| 2026-10-28T16:41:56.943223Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000028917observed c9c811d527e1232e266f3a498af002a6...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-10-28T16:41:56.856931Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000028917/manifest.jsonobserved d8aeb0cfdce91a7337969f991d71bb7b...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-28T16:41:56.784320Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000028917/publication.mdobserved f6953d846132d0970d545c052e5545bc...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-28T16:41:56.709770Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000028917/publication.txtobserved b0ee0eb3771ab8ddaee416754de20578...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-17T08:20:20.013627Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000028917observed c9c811d527e1232e266f3a498af002a6...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-17T08:20:19.988880Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000028917/manifest.jsonobserved d8aeb0cfdce91a7337969f991d71bb7b...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-17T08:20:19.961884Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000028917/publication.mdobserved f6953d846132d0970d545c052e5545bc...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-17T08:20:19.942003Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000028917/publication.txtobserved b0ee0eb3771ab8ddaee416754de20578...fetched by instance-3.rotem.ai from 34.69.0.72, 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 |
|---|