OT-2026-000004429
Publication integrity record
Vacuum cup gripper, two outlet manifold, pump fed, pressure verified at each zone
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-2026-000004429) never changes.
Identity and time
| Publication number | OT-2026-000004429 · never reused |
|---|---|
| Internal UUID | 01a0a917-6b4f-724e-b44d-549df312ad3f · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-16T07:21:19.442684Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000004429 |
| Status | PUBLIC |
Content hashes
| Canonical text | 258a32216850ec38184ab4cf7fa3025b2149730b363ccb5162b47007f15ae685 |
|---|---|
| Markdown | b39d88b8fb62a5434459cce2753f5d1d65e303b4b875bdb2e41c66a97d11b114 |
| Publication page | d16bea4d89c6629cf190530cf15db8b55a1b1154c489b351e4537561c92f76de |
| Manifest | e5c38e7bdefa23dbef81910f392a976016827fd5216b62b003634b3cf2f93e5e |
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 | BITvH65EZhoEIc/IR6Ar5bIic4i23fOH/8jaSyF/TOKrL7YOc4u4S6/Zd54C2mKwtMyivIJYV7J4kPJJzqufDA== |
| 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
| 2026-10-23T08:41:58.735944Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004429observed d16bea4d89c6629cf190530cf15db8b5...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-10-23T08:41:58.665869Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004429/manifest.jsonobserved e5c38e7bdefa23dbef81910f392a9760...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-23T08:41:58.599747Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004429/publication.mdobserved b39d88b8fb62a5434459cce2753f5d1d...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-23T08:41:58.488362Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004429/publication.txtobserved 258a32216850ec38184ab4cf7fa3025b...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-01T04:23:25.598664Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004429observed d16bea4d89c6629cf190530cf15db8b5...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-10-01T04:23:25.583712Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004429/manifest.jsonobserved e5c38e7bdefa23dbef81910f392a9760...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-10-01T04:23:25.567794Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004429/publication.mdobserved b39d88b8fb62a5434459cce2753f5d1d...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-10-01T04:23:25.348844Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004429/publication.txtobserved 258a32216850ec38184ab4cf7fa3025b...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
| 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 |
|---|