OT-2026-000004642
Publication integrity record
Porous face vacuum gripper, common isolation valve, two stage ejector, pressure verified at each zone
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-2026-000004642) never changes.
Identity and time
| Publication number | OT-2026-000004642 · never reused |
|---|---|
| Internal UUID | 01a0a91e-9df3-719a-8d95-304f15eae50b · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-16T07:29:11.157988Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000004642 |
| Status | PUBLIC |
Content hashes
| Canonical text | 428ecb9940726cb7e9fd6f74552c9d8e9533dbf00b21c636eba28931fddf2e81 |
|---|---|
| Markdown | 764a6efbb25a43859d783145756045092c60a1930329ce5823980c8acc3c9dc4 |
| Publication page | c5249ee77c0b2e17a38cfd62d346a606de3911bfbcc6e6b7758a6157b818b143 |
| Manifest | ca4eb5233c49000dfc1267665532ff2ebb04818c369d301c9d5e14ef8bb5382f |
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 | QcmifevAts3PvjeZAuqukvQFm4wtOBPEWsa+5W40mr+ng9OPDm1MgfKpIEW2nb2YgNqEXKIlrZQiAZfra0idAw== |
| 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
| 2026-09-16T07:30:05.708678Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004642observed c5249ee77c0b2e17a38cfd62d346a606...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-09-16T07:30:05.695341Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004642/manifest.jsonobserved ca4eb5233c49000dfc1267665532ff2e...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-16T07:30:05.681458Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004642/publication.mdobserved 764a6efbb25a43859d78314575604509...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-16T07:30:05.667536Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004642/publication.txtobserved 428ecb9940726cb7e9fd6f74552c9d8e...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. |
|---|