OT-2026-000077147
Publication integrity record
Three cup vacuum gripper, three zone face, common isolation valve, plant vacuum fed, pressure sensor per zone, 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-2026-000077147) never changes.
Identity and time
| Publication number | OT-2026-000077147 · never reused |
|---|---|
| Internal UUID | 01a0ae94-f507-79be-802e-19f169bbc85a · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-17T08:56:32.796581Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000077147 |
| Status | PUBLIC |
Content hashes
| Canonical text | d178ac43ad0ea90bcee13f6fed025e8389d30fa21fa20452728291c675fd1587 |
|---|---|
| Markdown | 85b6898979b860941ea750c0bd19fac9a7dc48d8f60e6bbd54bc4b743a5faaa7 |
| Publication page | af7e7574782658ca563275d27d5cdd0823d570290124cba30c8c872ffac596b8 |
| Manifest | c928420d43e769f672b6ba901dbb82755c4238ca9dbd46c33cb026b111d5e341 |
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 | QxuWMt/jVs8EmRByXidOitfvbOD+J/FetvOA8jcFWbVLBPwLfdmfX0ll1dRrF6zwXmQTUMDrcmkCDdj2CClzCg== |
| Public key | /integrity/keys · every key we have ever used stays published |
Trusted external timestamp
| timestamp.digicert.com | 2026-09-17T09:07:03Z batch OT-TS-2026-W38-022 · RFC 3161 token · inclusion proof root 061e9ae86cc297cdce873398aaec3f72... |
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Independent retrieval
| 2026-09-22T12:41:02.256088Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000077147observed af7e7574782658ca563275d27d5cdd08...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-09-22T12:41:02.193136Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000077147/manifest.jsonobserved c928420d43e769f672b6ba901dbb8275...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-22T12:41:02.136983Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000077147/publication.mdobserved 85b6898979b860941ea750c0bd19fac9...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-22T12:41:02.065405Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000077147/publication.txtobserved d178ac43ad0ea90bcee13f6fed025e83...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-20T04:42:20.126374Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000077147observed af7e7574782658ca563275d27d5cdd08...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-20T04:42:19.748404Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000077147/manifest.jsonobserved c928420d43e769f672b6ba901dbb8275...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-20T04:42:19.589449Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000077147/publication.mdobserved 85b6898979b860941ea750c0bd19fac9...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-20T04:42:19.349035Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000077147/publication.txtobserved d178ac43ad0ea90bcee13f6fed025e83...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 |
|---|