OT-2026-000005450
Publication integrity record
Porous face vacuum gripper, two outlet manifold, pump fed, contact triggered, vented after 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-2026-000005450) never changes.
Identity and time
| Publication number | OT-2026-000005450 · never reused |
|---|---|
| Internal UUID | 01a0a939-65be-7af8-b675-0b3720c35ad2 · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-16T07:58:26.241019Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000005450 |
| Status | PUBLIC |
Content hashes
| Canonical text | 7f4bf6ba4c8b03dafb65f5e4facbf4b0fd39735e37aebe9d9bab9436ab1bc8a3 |
|---|---|
| Markdown | 5c6f21c233852a5dd23d5f386e624014d1ede1b295c6e3c921c2d24b141fe5f7 |
| Publication page | 27cb4390b68a07d9aa8c45e34bc46f063943aeaeed31b9a99ac53017a7e98645 |
| Manifest | f8e8335c43219b18668fc1df1db0a66cf9aea4f9d9baaac3e8bf7fca5fdeb333 |
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 | zNy2i8e0m/FyREm6VkpnYnNsQKbtUkSRRw9ShJ5FmNOflmRHo4O4YI1xAOOx88T6QRGpMrv/Vtiz3DJDoRXSDw== |
| Public key | /integrity/keys · every key we have ever used stays published |
Trusted external timestamp
| timestamp.digicert.com | 2026-09-16T08:07:02Z batch OT-TS-2026-W38-011 · RFC 3161 token · inclusion proof root 8f13af7374aef42943b7bbe6a279c57a... |
|---|
Independent retrieval
| 2026-10-28T16:41:10.181649Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000005450observed 27cb4390b68a07d9aa8c45e34bc46f06...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-10-28T16:41:10.107169Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000005450/manifest.jsonobserved f8e8335c43219b18668fc1df1db0a66c...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-28T16:41:10.029994Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000005450/publication.mdobserved 5c6f21c233852a5dd23d5f386e624014...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-28T16:41:09.690556Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000005450/publication.txtobserved 7f4bf6ba4c8b03dafb65f5e4facbf4b0...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-01T16:41:03.596377Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000005450observed 27cb4390b68a07d9aa8c45e34bc46f06...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-01T16:41:03.509182Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000005450/manifest.jsonobserved f8e8335c43219b18668fc1df1db0a66c...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-01T16:41:03.414226Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000005450/publication.mdobserved 5c6f21c233852a5dd23d5f386e624014...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-01T16:41:03.243192Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000005450/publication.txtobserved 7f4bf6ba4c8b03dafb65f5e4facbf4b0...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 |
|---|