OT-2026-000021386
Publication integrity record
Four pad foam vacuum gripper, four outlet manifold, common isolation valve, pump fed, manifold 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-2026-000021386) never changes.
Identity and time
| Publication number | OT-2026-000021386 · never reused |
|---|---|
| Internal UUID | 01a0ae6f-865d-7cb7-a9da-409e65c44205 · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-17T08:15:39.631048Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000021386 |
| Status | PUBLIC |
Content hashes
| Canonical text | f67dfabfa4ea09e808a4371bdf8f58547c2799e2b99ea40daeb30531b19c63e3 |
|---|---|
| Markdown | e7607c81d12c14e1a701996532b410a2c8b180883f711c68b989b22efb304ce9 |
| Publication page | 3a1cdf71b02ffdb2ce09c1cb74de165f9ac3268550803affea789ebce8978590 |
| Manifest | 48bbc44ca9c8889ca1138dbed9e1b543c7108b9a03e89cf99c7f68bdad4fbfe9 |
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 | Vn/kmtESZPR4s8khSfetGSpbopRBynfRfQnqsgcq5amwShIizd9IHNN4MorqttTCCyNqaOhUSbcjSHqAAmm7Bw== |
| 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
| 2026-10-06T04:41:46.996844Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000021386observed 3a1cdf71b02ffdb2ce09c1cb74de165f...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-10-06T04:41:46.883189Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000021386/manifest.jsonobserved 48bbc44ca9c8889ca1138dbed9e1b543...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-06T04:41:46.796570Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000021386/publication.mdobserved e7607c81d12c14e1a701996532b410a2...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-06T04:41:46.708821Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000021386/publication.txtobserved f67dfabfa4ea09e808a4371bdf8f5854...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-26T08:41:12.359246Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000021386observed 3a1cdf71b02ffdb2ce09c1cb74de165f...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-26T08:41:12.238848Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000021386/manifest.jsonobserved 48bbc44ca9c8889ca1138dbed9e1b543...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-26T08:41:12.123105Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000021386/publication.mdobserved e7607c81d12c14e1a701996532b410a2...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-26T08:41:11.922400Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000021386/publication.txtobserved f67dfabfa4ea09e808a4371bdf8f5854...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 |
|---|