OT-2026-000004891
Publication integrity record
Vacuum cup gripper, four zone face, three outlet manifold, pump fed, pressure verified
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-2026-000004891) never changes.
Identity and time
| Publication number | OT-2026-000004891 · never reused |
|---|---|
| Internal UUID | 01a0a926-ce8b-7d0b-8b45-a45be4abe83d · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-16T07:38:07.888382Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000004891 |
| Status | PUBLIC |
Content hashes
| Canonical text | 8fe9f8cf4461dab68ee4fdec7a85f89c8b4b230b6de57914f6ebbf80164c4ae6 |
|---|---|
| Markdown | f32415fab076c160c623d7ca4848528faf15419be96c867773c14556b3ea21c2 |
| Publication page | b7cd9284f084ff5d2db76aba78ab5f30f7778755dc12eb502ac53590572aa46e |
| Manifest | b34e669b3ea0eff937edce3c2abf698d7e07ae7f164f7e734436e9f069047cff |
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 | iP6i342rrMlx98iIN55z+KqWZdAypi6zzLQmqx12SB8Fre9hHrx2yuHj9dBgDHBewsSVIu+TbniJ3zzYS9xvAA== |
| 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
| 2026-09-16T07:40:07.878883Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004891observed b7cd9284f084ff5d2db76aba78ab5f30...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-09-16T07:40:07.743306Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004891/manifest.jsonobserved b34e669b3ea0eff937edce3c2abf698d...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-16T07:40:07.728943Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004891/publication.mdobserved f32415fab076c160c623d7ca4848528f...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-16T07:40:07.714596Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004891/publication.txtobserved 8fe9f8cf4461dab68ee4fdec7a85f89c...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. |
|---|