OT-2026-000028100
Publication integrity record
Six bellows cup vacuum gripper, six outlet manifold, common isolation valve, single 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-2026-000028100) never changes.
Identity and time
| Publication number | OT-2026-000028100 · never reused |
|---|---|
| Internal UUID | 01a0ae72-a520-7d05-97e9-95219395bd7d · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-17T08:19:04.113553Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000028100 |
| Status | PUBLIC |
Content hashes
| Canonical text | e3c59ee062b49b4599a500f6f20515295bc1cdc981ce87e2cb2abe01c23cec87 |
|---|---|
| Markdown | 1708244a88ab6c0d30cd89b8c2750851c73398466f998d916e4b3bd93754b693 |
| Publication page | 3e7e6ca81ab17834938e30b847a8941966268dac5782da76ca1db80921656f3a |
| Manifest | 1f25908f13495f08752a073a1b5fcbc0b28bda5a466c26feecfef670b008519c |
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 | bmDjRJXSFAZPK0UecVwMSTBKtwqXa0XmRF0G3p8iUtKgmr2RkgTCSR9sdfUkxC2I6wxoREsu/+85Mg56ZD7eBA== |
| 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
| 2026-10-27T12:41:10.031948Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000028100observed 3e7e6ca81ab17834938e30b847a89419...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-10-27T12:41:09.944871Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000028100/manifest.jsonobserved 1f25908f13495f08752a073a1b5fcbc0...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-27T12:41:09.879634Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000028100/publication.mdobserved 1708244a88ab6c0d30cd89b8c2750851...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-27T12:41:09.806014Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000028100/publication.txtobserved e3c59ee062b49b4599a500f6f2051529...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-04T20:41:35.802530Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000028100observed 3e7e6ca81ab17834938e30b847a89419...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-04T20:41:35.747656Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000028100/manifest.jsonobserved 1f25908f13495f08752a073a1b5fcbc0...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-04T20:41:35.641162Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000028100/publication.mdobserved 1708244a88ab6c0d30cd89b8c2750851...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-04T20:41:35.563053Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000028100/publication.txtobserved e3c59ee062b49b4599a500f6f2051529...fetched by grabo-systems from 34.44.131.203, 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
| OT-CUSTODY-2026-W38 | OpenTechnical-Custody-2026-W38.tar.zstf2fc69d02142424a578267e5e3a6d3bb... · 402,218,449 bytes · held by held on site pending an external custodian · retention permanent |
|---|