OT-2026-000021931
Publication integrity record
Two bellows cup vacuum gripper, two zone face, common isolation valve, pump fed, pulsed blow-off before set-down, on a tool changer
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-2026-000021931) never changes.
Identity and time
| Publication number | OT-2026-000021931 · never reused |
|---|---|
| Internal UUID | 01a0ae6f-bb5b-7b6f-aa48-cd628c14dc5d · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-17T08:15:53.201585Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000021931 |
| Status | PUBLIC |
Content hashes
| Canonical text | 901d8ee69bc5c2a70296a74ae20923cf82ab4c685929d9bc1acae30afb10c8fb |
|---|---|
| Markdown | 32cf77e0bc67d52ab86eeb0ba31c1d111b5ee0cab29275f55d464ac0dcabcac3 |
| Publication page | 7860a4858677dec274a8c6efdcf9da5be436bff27e3e86fe27f404415cf9a780 |
| Manifest | 5f747423b07b7dc2e08cf0c5ea49a41dc1cf423ca791823f8e77a365a791ed6c |
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 | rEYeJxr4B4GYZ7lHCQR7Fss/XI/slYQJ9yXCD9XM77kqXpEPtfMid6ZCqajg54pseiZ+GIYRKTTQIDbTAOjfBQ== |
| Public key | /integrity/keys · every key we have ever used stays published |
Trusted external timestamp
| timestamp.digicert.com | 2026-09-17T08:42:32Z batch OT-TS-2026-W38-020 · RFC 3161 token · inclusion proof root 7c99e0163c3f1d2dc0f1dec0442e2af7... |
|---|
Independent retrieval
| 2026-09-17T11:54:35.551348Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000021931observed 7860a4858677dec274a8c6efdcf9da5b...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-09-17T11:54:30.535755Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000021931/manifest.jsonobserved 5f747423b07b7dc2e08cf0c5ea49a41d...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-17T11:54:30.520536Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000021931/publication.mdobserved 32cf77e0bc67d52ab86eeb0ba31c1d11...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-17T11:54:30.499761Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000021931/publication.txtobserved 901d8ee69bc5c2a70296a74ae20923cf...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. |
|---|