OT-2026-000004840
Publication integrity record
Porous face vacuum gripper, common isolation valve, two stage ejector, contact triggered on the face
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-2026-000004840) never changes.
Identity and time
| Publication number | OT-2026-000004840 · never reused |
|---|---|
| Internal UUID | 01a0a924-fec5-7c13-8fdb-76f0711c854c · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-16T07:36:09.160334Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000004840 |
| Status | PUBLIC |
Content hashes
| Canonical text | 14ef128e73be3e17b3503cac8a8c0dacd04553d758c553d6c68987d39a110728 |
|---|---|
| Markdown | 8760178fa4ec1ee1c72a2a4e6912b4856cf94e7b50916f86491d473e303cfdb9 |
| Publication page | 10c04e1dd8b82f3aac7c7e0335eeea2cdeb755a8dbf5a9063d290782b9c45cac |
| Manifest | 871da7a3eddec1505d656707b8e097881c081e14857d54570ac3c6982421ee0e |
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 | wsZQ9AwdjNDSEzDOqlTuysprI0kiQgPtK99V/lPKsNVoN/jXXafshtRfI/qb5trt9Y0k0dNR+U/79fGPaomzDg== |
| Public key | /integrity/keys · every key we have ever used stays published |
Trusted external timestamp
| timestamp.digicert.com | 2026-09-16T07:47:02Z batch OT-TS-2026-W38-010 · RFC 3161 token · inclusion proof root e1b42dfa4cd0fb1e3e472afd2db961c2... |
|---|
Independent retrieval
| 2026-10-26T08:42:12.696001Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004840observed 10c04e1dd8b82f3aac7c7e0335eeea2c...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-10-26T08:42:12.622643Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004840/manifest.jsonobserved 871da7a3eddec1505d656707b8e09788...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-26T08:42:12.547699Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004840/publication.mdobserved 8760178fa4ec1ee1c72a2a4e6912b485...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-26T08:42:12.478543Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004840/publication.txtobserved 14ef128e73be3e17b3503cac8a8c0dac...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-26T04:41:42.751210Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004840observed 10c04e1dd8b82f3aac7c7e0335eeea2c...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-26T04:41:42.665096Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004840/manifest.jsonobserved 871da7a3eddec1505d656707b8e09788...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-26T04:41:42.587620Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004840/publication.mdobserved 8760178fa4ec1ee1c72a2a4e6912b485...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-26T04:41:42.340081Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004840/publication.txtobserved 14ef128e73be3e17b3503cac8a8c0dac...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 |
|---|