OT-2026-000021577
Publication integrity record
Single cup vacuum gripper, common isolation valve, two stage ejector, 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-2026-000021577) never changes.
Identity and time
| Publication number | OT-2026-000021577 · never reused |
|---|---|
| Internal UUID | 01a0ae6f-865e-743d-84a9-5e1bf81f5eca · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-17T08:15:39.631048Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000021577 |
| Status | PUBLIC |
Content hashes
| Canonical text | 17ddec399ba84952ef7a0a0ec51781eabd3230a4d7a0afe429314712689d5aa2 |
|---|---|
| Markdown | 81ab4336d0e29045baca1a616855031b641b475c376add3b3cab2d12031e0c1b |
| Publication page | e4d72bdc34bcaa7646591dd5005aee2cf6a6f235c94ecff01064f6f33055ce2b |
| Manifest | f44f359e7765ae14d9833861eb2c65d64e6489efefb2618ea0f7993f86f5cac1 |
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 | nPSsIu69QlPBt1xR3uJFplP//1VMEob+4lZhl/Xe5HzGj+cVvg/K1vl8bCBd+3YDpZfWSPWY6Owrs29WjwGdAw== |
| 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
| 2026-09-17T11:54:52.843589Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000021577observed e4d72bdc34bcaa7646591dd5005aee2c...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-09-17T11:54:52.821934Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000021577/manifest.jsonobserved f44f359e7765ae14d9833861eb2c65d6...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-17T11:54:52.801865Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000021577/publication.mdobserved 81ab4336d0e29045baca1a616855031b...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-17T11:54:52.783026Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000021577/publication.txtobserved 17ddec399ba84952ef7a0a0ec51781ea...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. |
|---|