OT-2026-000028034
Publication integrity record
Three pad foam vacuum gripper, three outlet manifold, 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-2026-000028034) never changes.
Identity and time
| Publication number | OT-2026-000028034 · never reused |
|---|---|
| Internal UUID | 01a0ae72-a51f-7308-8902-fea4b137044f · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-17T08:19:04.113553Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000028034 |
| Status | PUBLIC |
Content hashes
| Canonical text | e668995b003c8687549fe7b7628d1605752e8855ae693ca133ae3d31f9fb9f06 |
|---|---|
| Markdown | 475fc4683d9ff2958d71ed5ae3a33267eb725087970aed457b0f871957e0d1b2 |
| Publication page | e1db7486b68cb9301da1d8b3785d4a927f31818bca9adc95bea661fcc8b6a517 |
| Manifest | be72f446d756e06beb2a619360dc0353a700c6efb92190d730b9a5fe4ffd5d86 |
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 | UQGV1YKAeCan3qPLarj8ztNoA8U2eJHG1p2cW+DyHFtqg8Twart20pkpzMeVoVo6cLV+5xi//baFUFHT4C73Dg== |
| 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
| 2026-10-22T00:41:11.478852Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000028034observed e1db7486b68cb9301da1d8b3785d4a92...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-10-22T00:41:11.411956Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000028034/manifest.jsonobserved be72f446d756e06beb2a619360dc0353...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-22T00:41:11.299846Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000028034/publication.mdobserved 475fc4683d9ff2958d71ed5ae3a33267...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-22T00:41:11.167937Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000028034/publication.txtobserved e668995b003c8687549fe7b7628d1605...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-02T08:41:18.760912Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000028034observed e1db7486b68cb9301da1d8b3785d4a92...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-02T08:41:18.687884Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000028034/manifest.jsonobserved be72f446d756e06beb2a619360dc0353...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-02T08:41:18.615905Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000028034/publication.mdobserved 475fc4683d9ff2958d71ed5ae3a33267...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-02T08:41:18.435561Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000028034/publication.txtobserved e668995b003c8687549fe7b7628d1605...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 |
|---|