OT-2026-000056154
Publication integrity record
Foam pad vacuum gripper, pump fed, supply line pressure sensor, vented before set-down
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-2026-000056154) never changes.
Identity and time
| Publication number | OT-2026-000056154 · never reused |
|---|---|
| Internal UUID | 01a0ae87-0a4c-7a3a-ae62-eaa33a894069 · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-17T08:41:20.734835Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000056154 |
| Status | PUBLIC |
Content hashes
| Canonical text | f8eb4cbf512ecc3fd3bfa6b4f16da2bfb0fcee195e47bcdc63a4f8c46661c165 |
|---|---|
| Markdown | 3dc2c5a2ea7ab5357c0be34b5057cd09bd467c72f1864d9fd080140c4f828d2a |
| Publication page | 8e52cb23b672beb1d9f3576bb65e12de9384b3a1a29b7281cbb60a203f623ddc |
| Manifest | 71a1e37516f3e1ef1050af948fb9872bfae55d04bb09cec9003c637d528ef107 |
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 | SD3iMB1rtZrNSySFJJJsNFGMaok9tY53DzRXaVWfvDBuaKiHfCPSFyKunkPFl2/heCEjCGod+3R8VDQdQ8cICQ== |
| Public key | /integrity/keys · every key we have ever used stays published |
Trusted external timestamp
| timestamp.digicert.com | 2026-09-17T08:47:04Z batch OT-TS-2026-W38-021 · RFC 3161 token · inclusion proof root 954df3475fbcfbe27467725cfb2ec919... |
|---|---|
| timestamp.digicert.com | 2026-09-17T08:42:32Z batch OT-TS-2026-W38-020 · RFC 3161 token · inclusion proof root 7c99e0163c3f1d2dc0f1dec0442e2af7... |
Independent retrieval
| 2026-10-12T04:41:15.716146Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000056154observed 8e52cb23b672beb1d9f3576bb65e12de...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-10-12T04:41:15.601854Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000056154/manifest.jsonobserved 71a1e37516f3e1ef1050af948fb9872b...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-12T04:41:15.529199Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000056154/publication.mdobserved 3dc2c5a2ea7ab5357c0be34b5057cd09...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-12T04:41:15.356350Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000056154/publication.txtobserved f8eb4cbf512ecc3fd3bfa6b4f16da2bf...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-22T00:41:20.065451Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000056154observed 8e52cb23b672beb1d9f3576bb65e12de...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-22T00:41:20.003639Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000056154/manifest.jsonobserved 71a1e37516f3e1ef1050af948fb9872b...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-22T00:41:19.933643Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000056154/publication.mdobserved 3dc2c5a2ea7ab5357c0be34b5057cd09...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-22T00:41:19.827237Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000056154/publication.txtobserved f8eb4cbf512ecc3fd3bfa6b4f16da2bf...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 |
|---|