OT-2026-000021808
Publication integrity record
Four bellows cup vacuum gripper, four outlet manifold, common isolation valve, plant vacuum fed, supply line pressure sensor, 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-2026-000021808) never changes.
Identity and time
| Publication number | OT-2026-000021808 · never reused |
|---|---|
| Internal UUID | 01a0ae6f-bb5a-7135-aa36-b3e739adeb2e · 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-2026-000021808 |
| Status | PUBLIC |
Content hashes
| Canonical text | 63c28f588f1100719aa81fb33f4c458c9a918d07533fd11f784c21edf4273eec |
|---|---|
| Markdown | 854b57cc0229cacd660e86baef3aa5f4b7a6c4360869cfa026b89a7492804fe6 |
| Publication page | 1cb7aeb1318777c5b931d124a2986269c2bc9efcad97fec6180a268bb328198c |
| Manifest | 5547f529567ca5968b896f6aa4e7d9da145a885af9d4154425d9dbacd9ee2ce5 |
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 | A7ErYa3xvVStNyZ4N5BVnne40OHdg/7e6dAIbnkwu+E+6XPCB7BtC/2BPjNzIMpiYbCpGFuhdVmWZFlVfnzPCw== |
| 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
| 2026-09-17T11:54:21.772397Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000021808observed 1cb7aeb1318777c5b931d124a2986269...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-09-17T11:54:21.753964Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000021808/manifest.jsonobserved 5547f529567ca5968b896f6aa4e7d9da...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-17T11:54:21.736716Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000021808/publication.mdobserved 854b57cc0229cacd660e86baef3aa5f4...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-17T11:54:21.719472Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000021808/publication.txtobserved 63c28f588f1100719aa81fb33f4c458c...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. |
|---|