OT-2026-000028817
Publication integrity record
Four cup vacuum gripper, four outlet manifold, common isolation valve, three stage ejector, manifold pressure sensor, sustained 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-2026-000028817) never changes.
Identity and time
| Publication number | OT-2026-000028817 · never reused |
|---|---|
| Internal UUID | 01a0ae73-2252-7b46-962c-4020e5e4761f · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-17T08:19:36.158293Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000028817 |
| Status | PUBLIC |
Content hashes
| Canonical text | 5baa6d5812fc2a021f2dcf481339ac14043754f2236f65692691fb9013bf3360 |
|---|---|
| Markdown | 1fa3ef84dccd7a6e72869a970ca42f942d1242acdfb7f0af415cede4635051fb |
| Publication page | d4c4dd6192db3e518f4fb113d4abbf7bc092ad442d176a9a21cbad52761a384e |
| Manifest | 497a8e318ee2cb6b8b89f1c731b1445c12b20be72db7fadd97cb64efa52d8996 |
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 | d4ATpnIdUTpcoaalDvpI4nlTvOk+7hMvxL34P8Yab5c0fThcgFlmPXHzL2e0/rHxHFS8YilKmG90vaV0vT4YAw== |
| 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
| 2026-09-17T11:40:04.878358Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000028817observed d4c4dd6192db3e518f4fb113d4abbf7b...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-09-17T11:40:04.852792Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000028817/manifest.jsonobserved 497a8e318ee2cb6b8b89f1c731b1445c...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-17T11:40:04.836376Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000028817/publication.mdobserved 1fa3ef84dccd7a6e72869a970ca42f94...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-17T11:40:04.818538Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000028817/publication.txtobserved 5baa6d5812fc2a021f2dcf481339ac14...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. |
|---|