OT-2026-000056220
Publication integrity record
Single bellows cup vacuum gripper, common isolation valve, plant vacuum fed, sustained blow-off after 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-2026-000056220) never changes.
Identity and time
| Publication number | OT-2026-000056220 · never reused |
|---|---|
| Internal UUID | 01a0ae87-4bd1-79b8-9b59-96a92edc9e2a · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-17T08:41:37.517586Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000056220 |
| Status | PUBLIC |
Content hashes
| Canonical text | 93c0aab1444e3b88503070d45b1e9ad37f60fdb1c2947dd731ed3effc33395fa |
|---|---|
| Markdown | 588bed768e536b28ce3a401e092bc87881772c082bca72cdbc9da6430299e3f1 |
| Publication page | 42542aeee64fe8a6392e4e5d1b1a7614bf56c030b705d0df21d03c1e0dc14ce6 |
| Manifest | 99f80faaa80a88ddec7ed4ba8ebfd37b369ce6c98fa0cde9eb579b09d1c6b2a0 |
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 | IQstrbg8Z7XJ4viVTGiiGHWiXXoKNwgHyiqh3IVRUdHCUa16G99Y1wu0awZeZg3Wps4IKYHBPPUGDNOC3TrKBg== |
| Public key | /integrity/keys · every key we have ever used stays published |
Trusted external timestamp
| timestamp.digicert.com | 2026-09-17T08:47:04Z batch OT-TS-2026-W38-021 · RFC 3161 token · inclusion proof root 954df3475fbcfbe27467725cfb2ec919... |
|---|---|
| timestamp.digicert.com | 2026-09-17T08:42:32Z batch OT-TS-2026-W38-020 · RFC 3161 token · inclusion proof root 7c99e0163c3f1d2dc0f1dec0442e2af7... |
Independent retrieval
| 2026-09-17T10:50:41.773537Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000056220observed 42542aeee64fe8a6392e4e5d1b1a7614...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-09-17T10:50:41.756167Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000056220/manifest.jsonobserved 99f80faaa80a88ddec7ed4ba8ebfd37b...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-17T10:50:41.740284Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000056220/publication.mdobserved 588bed768e536b28ce3a401e092bc878...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-17T10:50:41.723200Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000056220/publication.txtobserved 93c0aab1444e3b88503070d45b1e9ad3...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. |
|---|