OT-2026-000021855
Publication integrity record
Two cup vacuum gripper, two zone face, common isolation valve, two stage ejector, 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-2026-000021855) never changes.
Identity and time
| Publication number | OT-2026-000021855 · never reused |
|---|---|
| Internal UUID | 01a0ae6f-bb5b-70c7-8cc9-7e20aa11270f · 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-2026-000021855 |
| Status | PUBLIC |
Content hashes
| Canonical text | 96e4efeddbfd595f9291e225a4074cfddb2a3297296ab27434fd30cd1ee4b283 |
|---|---|
| Markdown | dbb1eeabfc87356400e15580806ce95eb95c82f7e7c5e2043c3f62542560c24b |
| Publication page | 588fcb5f7dcd272271f5dabcd40a67249c3c1c3cb079fd0b03aef28cfc180c44 |
| Manifest | 38d9f06c5c37670e9ae24372d685ce0f91a59a9e06aafa689fa15a8492fd7b86 |
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 | /mkslah0ChK2UeelbKGfYw1pDeUuQtM4bWld+VDuoHvvHE2TzAub06vkAgfUheaE7IEAabiFtjabnPvgVAP/Dg== |
| 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
| 2026-10-31T16:41:41.382008Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000021855observed 588fcb5f7dcd272271f5dabcd40a6724...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-10-31T16:41:41.306562Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000021855/manifest.jsonobserved 38d9f06c5c37670e9ae24372d685ce0f...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-31T16:41:41.216036Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000021855/publication.mdobserved dbb1eeabfc87356400e15580806ce95e...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-31T16:41:41.130700Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000021855/publication.txtobserved 96e4efeddbfd595f9291e225a4074cfd...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-18T20:41:20.239359Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000021855observed 588fcb5f7dcd272271f5dabcd40a6724...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-18T20:41:19.871205Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000021855/manifest.jsonobserved 38d9f06c5c37670e9ae24372d685ce0f...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-18T20:41:19.715450Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000021855/publication.mdobserved dbb1eeabfc87356400e15580806ce95e...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-18T20:41:19.434046Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000021855/publication.txtobserved 96e4efeddbfd595f9291e225a4074cfd...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 |
|---|