OT-2026-000004280
Publication integrity record
Vacuum cup gripper, two zone face, pump fed, vented before set down, polyurethane cups
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-2026-000004280) never changes.
Identity and time
| Publication number | OT-2026-000004280 · never reused |
|---|---|
| Internal UUID | 01a0a913-155b-7f80-b6ce-ebbff47f3c82 · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-16T07:16:35.295421Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000004280 |
| Status | PUBLIC |
Content hashes
| Canonical text | a87779bf5b42ead53bc9d5c78554d1756f4f371d68403f903571cef2445b0546 |
|---|---|
| Markdown | 6a8f3e8113c0f3207198cf4cb9b71cb5365b3e8ae0f4937f89e43c647d1c33ca |
| Publication page | af7963796dee19c8927b5531a3fcfcd9606f91e04c3d4107cbd2ea21522f4675 |
| Manifest | 7421b066f2f3e9242ee6d4371e5d08e7b1d0e84a7476c2a35d5919e5e251f129 |
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 | ruhm6Qc3OJr7vLU7cCixT9vT+H85huSk0vDD/XHSFzKA2tCcTNta9slT2f4GUPAO97YS6H/7NwzwV+m7NySODg== |
| Public key | /integrity/keys · every key we have ever used stays published |
Trusted external timestamp
| timestamp.digicert.com | 2026-09-16T07:27:02Z batch OT-TS-2026-W38-009 · RFC 3161 token · inclusion proof root aada101caea153fd76622afa3661a5b8... |
|---|
Independent retrieval
| 2026-09-16T07:20:15.733004Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004280observed af7963796dee19c8927b5531a3fcfcd9...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-09-16T07:20:15.720122Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004280/manifest.jsonobserved 7421b066f2f3e9242ee6d4371e5d08e7...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-16T07:20:15.706942Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004280/publication.mdobserved 6a8f3e8113c0f3207198cf4cb9b71cb5...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-16T07:20:15.693132Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004280/publication.txtobserved a87779bf5b42ead53bc9d5c78554d175...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. |
|---|