OT-2026-000021648
Publication integrity record
Four bellows cup vacuum gripper, four outlet manifold, common isolation valve, single stage ejector, supply line pressure sensor, pulsed 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-2026-000021648) never changes.
Identity and time
| Publication number | OT-2026-000021648 · never reused |
|---|---|
| Internal UUID | 01a0ae6f-bb59-706d-be43-f18ed1a6f3ab · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-17T08:15:53.201585Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000021648 |
| Status | PUBLIC |
Content hashes
| Canonical text | 7e9dcb18f09b6a5b4210d14b54a59c17cdc47818044ecc4b617117ddcee459ca |
|---|---|
| Markdown | 2540cd16314e0103017ca0cee2b1edac177410aa038e82b60aa85bc8768f70a0 |
| Publication page | 2489493ff6a2e65505a5f085dd63acd6847fe852005472f64727129f74e9cb4f |
| Manifest | dc3037780ed9c6a3d24790195916e16acd62402620ea5dd1070767ccfc8a1424 |
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 | 9mM7dDPfVM/BLuwL/pxEC1dlDQYgbTmTZ9rlet0grNLeo81/bjSaV5a20uGjjUNxww4FxROraDdrXe9t586DDQ== |
| 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
| 2026-10-21T00:41:21.382199Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000021648observed 2489493ff6a2e65505a5f085dd63acd6...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-10-21T00:41:21.309012Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000021648/manifest.jsonobserved dc3037780ed9c6a3d24790195916e16a...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-21T00:41:21.256626Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000021648/publication.mdobserved 2540cd16314e0103017ca0cee2b1edac...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-21T00:41:21.096151Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000021648/publication.txtobserved 7e9dcb18f09b6a5b4210d14b54a59c17...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-30T16:41:45.323260Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000021648observed 2489493ff6a2e65505a5f085dd63acd6...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-30T16:41:45.187389Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000021648/manifest.jsonobserved dc3037780ed9c6a3d24790195916e16a...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-30T16:41:45.090099Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000021648/publication.mdobserved 2540cd16314e0103017ca0cee2b1edac...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-30T16:41:44.941227Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000021648/publication.txtobserved 7e9dcb18f09b6a5b4210d14b54a59c17...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 |
|---|