OT-2026-000004977
Publication integrity record
Porous face vacuum gripper, three zone face, common isolation valve, two stage ejector, 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-2026-000004977) never changes.
Identity and time
| Publication number | OT-2026-000004977 · never reused |
|---|---|
| Internal UUID | 01a0a929-cf7d-729c-b824-ea197d4757ab · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-16T07:41:24.735970Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000004977 |
| Status | PUBLIC |
Content hashes
| Canonical text | 9ccaf8cf3512053419fa0f49c5bcc1ca2527680f26f06f289b52db998e0733e1 |
|---|---|
| Markdown | d6a5cac398e069bffdc9a1d5d5e855e6f707bee9a533a8971f8b0643f2da1ade |
| Publication page | 3545bf3f8ba93789fbc1b0c035d6f508b61494acb67b1fca766023e975162453 |
| Manifest | 64b886bb4c0f291b81bc409be48a67fc55d143caa2de625edfd2e566a57bc1dc |
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 | 8vk8vdqC3//i6YMJ8BIM9DX6DeO0O0ALjITIsV1nAOFGf7o4gPyUNYmBgxe7E0aTq7cSGJGLzliuNlE/SSbEBA== |
| 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
| 2026-09-16T07:50:28.901653Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004977observed 3545bf3f8ba93789fbc1b0c035d6f508...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-09-16T07:50:28.890390Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004977/manifest.jsonobserved 64b886bb4c0f291b81bc409be48a67fc...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-16T07:50:28.877884Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004977/publication.mdobserved d6a5cac398e069bffdc9a1d5d5e855e6...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-16T07:50:28.738288Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004977/publication.txtobserved 9ccaf8cf3512053419fa0f49c5bcc1ca...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. |
|---|