OT-2026-000006521
Publication integrity record
Porous face vacuum gripper, three zone face, pump fed, pressure verified, contact triggered, open cell
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-2026-000006521) never changes.
Identity and time
| Publication number | OT-2026-000006521 · never reused |
|---|---|
| Internal UUID | 01a0a95e-1faf-75e1-87ff-176a11743885 · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-16T08:38:33.138246Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000006521 |
| Status | PUBLIC |
Content hashes
| Canonical text | 02cfe9dee44bfc6a0425923a2c02465830da1e48c4830b99d88efca16826ecb9 |
|---|---|
| Markdown | 86488dde5619a8840a2532f975e542514da8e264412dc3388978916f7fe45bb1 |
| Publication page | 58f7cd7119571864b7b6d33cc537f16c81bd96b60ce129d06d92b4cfd99aefff |
| Manifest | 3bb332b41e52c3982caad8167fba163cf63766e146f52304047ddfb6d69cb652 |
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 | 82+NBRPbTxygsJsCHSRHW7oBmPlvXf6Z57hk+tCc6iJPOa38Ve9pQOidFEH6XQ1GXVytWSqtuS1CfzPQnhNpDg== |
| Public key | /integrity/keys · every key we have ever used stays published |
Trusted external timestamp
| timestamp.digicert.com | 2026-09-16T08:47:03Z batch OT-TS-2026-W38-013 · RFC 3161 token · inclusion proof root e368e9c5ab06dc5cb1b0682dd54c11f5... |
|---|
Independent retrieval
| 2026-09-16T08:40:07.702191Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000006521observed 58f7cd7119571864b7b6d33cc537f16c...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-09-16T08:40:07.686785Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000006521/manifest.jsonobserved 3bb332b41e52c3982caad8167fba163c...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-16T08:40:07.672594Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000006521/publication.mdobserved 86488dde5619a8840a2532f975e54251...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-16T08:40:07.658675Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000006521/publication.txtobserved 02cfe9dee44bfc6a0425923a2c024658...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
| Custody package | Pending Custody packages are produced weekly. |
|---|