OT-2026-000028293
Publication integrity record
Four cup vacuum gripper, four outlet manifold, single stage ejector, manifold pressure sensor, 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-2026-000028293) never changes.
Identity and time
| Publication number | OT-2026-000028293 · never reused |
|---|---|
| Internal UUID | 01a0ae72-e2f5-7d7d-bf87-6a0dfe6037e4 · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-17T08:19:19.949572Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000028293 |
| Status | PUBLIC |
Content hashes
| Canonical text | b9e7aa6feae0446eee461660e6c0b44689d45a9871659c682e34dca4c4a5acfc |
|---|---|
| Markdown | 0a673457058907d8f3fe6a8bfa68c698d6fb18748ebe19a0b7bbbc4c22ac5ca6 |
| Publication page | d75ba22565810485dc5c036262cedd676b549462abdf251138a15ab5e7a9772f |
| Manifest | 9968daafafb4c6a36945c1c492ff11c6deb416e1e9adff5699b02a3e6b987d48 |
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 | /mrIF6i0/3TEwCl0keCMHQMu4c4iVYPhMbJCUPpiCLPZXucy39DMT6bjcCrs35f+2uMEvOeQNNZa2LE+DocuBQ== |
| 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... |
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Independent retrieval
| 2026-10-10T04:41:15.950574Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000028293observed d75ba22565810485dc5c036262cedd67...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-10-10T04:41:15.855324Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000028293/manifest.jsonobserved 9968daafafb4c6a36945c1c492ff11c6...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-10T04:41:15.759967Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000028293/publication.mdobserved 0a673457058907d8f3fe6a8bfa68c698...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-10T04:41:15.617465Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000028293/publication.txtobserved b9e7aa6feae0446eee461660e6c0b446...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-17T11:40:10.472274Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000028293observed d75ba22565810485dc5c036262cedd67...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-17T11:40:10.450244Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000028293/manifest.jsonobserved 9968daafafb4c6a36945c1c492ff11c6...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-17T11:40:10.430874Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000028293/publication.mdobserved 0a673457058907d8f3fe6a8bfa68c698...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-17T11:40:10.412578Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000028293/publication.txtobserved b9e7aa6feae0446eee461660e6c0b446...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 |
|---|