OT-2026-000004731
Publication integrity record
Bellows cup vacuum gripper, two zone face, per zone isolation, plant vacuum 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-2026-000004731) never changes.
Identity and time
| Publication number | OT-2026-000004731 · never reused |
|---|---|
| Internal UUID | 01a0a921-8a23-7c35-ae18-f829c5db6949 · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-16T07:32:22.693817Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000004731 |
| Status | PUBLIC |
Content hashes
| Canonical text | 1d3c203ff07c61552af279874427f8ce7e46f461d6b49bea42aaabd75e5edd7b |
|---|---|
| Markdown | e2601c5a67f71fbfeb3ec59a20e906e2c7571d70e223d8381b9a0422b7aaca2e |
| Publication page | 5f02d175f9773cd29e557d62506e6bac0e6d0b66fddfb75ad81ea7f8a7c14325 |
| Manifest | c8400b8660cd3ac76548d3a0e6c15ca51d136271a4f362bc3dd317d9c1b21909 |
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 | w/0mp1o+ykX/lN5jts2+42BEDsiVm3fRvZ9iDXIY/TI6cN2ZOxCZPc8XZJLU0uh0PRM+fsLnGnefMWIYqxh3DA== |
| 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
| 2026-09-16T07:40:24.931652Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004731observed 5f02d175f9773cd29e557d62506e6bac...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-09-16T07:40:24.918971Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004731/manifest.jsonobserved c8400b8660cd3ac76548d3a0e6c15ca5...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-16T07:40:24.904826Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004731/publication.mdobserved e2601c5a67f71fbfeb3ec59a20e906e2...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-16T07:40:24.891977Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004731/publication.txtobserved 1d3c203ff07c61552af279874427f8ce...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. |
|---|