OT-2026-000028412
Publication integrity record
Single bellows cup vacuum gripper, pump fed, 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-2026-000028412) never changes.
Identity and time
| Publication number | OT-2026-000028412 · never reused |
|---|---|
| Internal UUID | 01a0ae72-e2f6-7a82-b37b-1b36c1632ff9 · 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-2026-000028412 |
| Status | PUBLIC |
Content hashes
| Canonical text | d86d2152d80aa821f0c52adabd08e62a5bbe31b0b144979c1b8a797ebf656ccc |
|---|---|
| Markdown | 80d715bcdb55565a6110f35f9e97d21b16574655d0e8346efdf9132534d6047c |
| Publication page | 830694b5d50216693141dd420474574c82ed865f87ca6fb4a0dbda2117df6dcf |
| Manifest | afa5e22d9af44f3b0194a6f582c2812d4b702a2cb01a7c05e664eabb7f053dc5 |
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 | c5M9IU9tponeB6coZk0S4qHTwjHJtoxkJd1XnN8veF6EkRDiE+ny7AKKG7RwnmL7G1LDvMjX52oMr0XqXY4jAg== |
| 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
| 2026-09-17T11:40:32.508371Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000028412observed 830694b5d50216693141dd420474574c...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-09-17T11:40:32.490834Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000028412/manifest.jsonobserved afa5e22d9af44f3b0194a6f582c2812d...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-17T11:40:32.473702Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000028412/publication.mdobserved 80d715bcdb55565a6110f35f9e97d21b...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-17T11:40:32.453933Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000028412/publication.txtobserved d86d2152d80aa821f0c52adabd08e62a...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
| Custody package | Pending Custody packages are produced weekly. |
|---|