OT-2026-000004273
Publication integrity record
Bellows cup vacuum gripper, per zone isolation, two outlet manifold, plant vacuum fed
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-2026-000004273) never changes.
Identity and time
| Publication number | OT-2026-000004273 · never reused |
|---|---|
| Internal UUID | 01a0a912-f8a4-7880-874b-f2d1d8740c15 · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-16T07:16:27.943256Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000004273 |
| Status | PUBLIC |
Content hashes
| Canonical text | 0e7ca71a697ea0f24e6b356c29cd9cece97f832e4c9a36a8a71582a2d66cddbd |
|---|---|
| Markdown | 4d367137ef9374ccd2c3f3bb53fe0a2b31ffc584d16abbe8b169b253d94dc067 |
| Publication page | 2c401b7b1f5d9cf3dde03cac702758a60ccac2446c797f5fe25ac700941161a6 |
| Manifest | 364bcfc9e8b3cfb2741264077895cfefc440db8e1497d8d7a7713be7245911d9 |
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 | HtG2ZIlEP0iVL13JjQt/GE9XoGuT5V7/cajLZUgo5QaxNaryOarx7q3AVn0q471LIrCJcy+YusCpfmdGkCsTCw== |
| Public key | /integrity/keys · every key we have ever used stays published |
Trusted external timestamp
| timestamp.digicert.com | 2026-09-16T07:27:02Z batch OT-TS-2026-W38-009 · RFC 3161 token · inclusion proof root aada101caea153fd76622afa3661a5b8... |
|---|
Independent retrieval
| 2026-09-21T04:43:22.032080Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004273observed 2c401b7b1f5d9cf3dde03cac702758a6...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-09-21T04:43:21.310918Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004273/manifest.jsonobserved 364bcfc9e8b3cfb2741264077895cfef...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-21T04:43:20.623927Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004273/publication.mdobserved 4d367137ef9374ccd2c3f3bb53fe0a2b...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-21T04:43:20.057069Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004273/publication.txtobserved 0e7ca71a697ea0f24e6b356c29cd9cec...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-19T08:42:59.634327Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004273observed 2c401b7b1f5d9cf3dde03cac702758a6...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-19T08:42:59.061596Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004273/manifest.jsonobserved 364bcfc9e8b3cfb2741264077895cfef...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-19T08:42:58.750520Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004273/publication.mdobserved 4d367137ef9374ccd2c3f3bb53fe0a2b...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-19T08:42:58.157967Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004273/publication.txtobserved 0e7ca71a697ea0f24e6b356c29cd9cec...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 |
|---|