OT-2026-000066991
Publication integrity record
Three bellows cup vacuum gripper, three zone face, common isolation valve, pump 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-2026-000066991) never changes.
Identity and time
| Publication number | OT-2026-000066991 · never reused |
|---|---|
| Internal UUID | 01a0ae8f-14fe-77a8-bca8-f4147c710250 · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-17T08:50:07.760615Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000066991 |
| Status | PUBLIC |
Content hashes
| Canonical text | 702fe839f866487492559ee4e565d53934aa5db5a783e55947a81887e9190382 |
|---|---|
| Markdown | 4ef079077048d066e6f7df887aa0c005d3f8faa0ed7345e9ec68d8c1ae7d973f |
| Publication page | a686a5fef2304acff6e38ee6906e23ff8bc96b59ce156255b51f63d629cef0e5 |
| Manifest | 8e84a7f5e6d77c48b50d91e28ea0d0441b7d369865b44cd8a31776dd8f042629 |
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 | g+DV57O3LPn1gNW2Jrct9EI4LFMnp+ctdyBaBfaNiQOz7ZmTJGWNmxUfV7B1bahbMJZjE+4O/Ek9A7GVHohHCw== |
| 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... |
|---|
Independent retrieval
| 2026-10-20T00:41:47.753028Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000066991observed a686a5fef2304acff6e38ee6906e23ff...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-10-20T00:41:47.700951Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000066991/manifest.jsonobserved 8e84a7f5e6d77c48b50d91e28ea0d044...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-20T00:41:47.596228Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000066991/publication.mdobserved 4ef079077048d066e6f7df887aa0c005...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-20T00:41:47.530667Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000066991/publication.txtobserved 702fe839f866487492559ee4e565d539...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-23T08:41:22.148088Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000066991observed a686a5fef2304acff6e38ee6906e23ff...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-23T08:41:22.097306Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000066991/manifest.jsonobserved 8e84a7f5e6d77c48b50d91e28ea0d044...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-23T08:41:22.047868Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000066991/publication.mdobserved 4ef079077048d066e6f7df887aa0c005...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-23T08:41:21.989410Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000066991/publication.txtobserved 702fe839f866487492559ee4e565d539...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 |
|---|