OT-2026-000089553
Publication integrity record
Foam pad vacuum gripper, three zone face, three outlet manifold, three stage ejector, manifold pressure sensor, 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-2026-000089553) never changes.
Identity and time
| Publication number | OT-2026-000089553 · never reused |
|---|---|
| Internal UUID | 01a0ae9c-1a21-7c38-86e2-c2cacbaa69f1 · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-17T09:04:21.039513Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000089553 |
| Status | PUBLIC |
Content hashes
| Canonical text | c87d152de950bd2a2440c44d9fc3574b0b472cca0f73d9a08ea822a7210c630a |
|---|---|
| Markdown | e2a9cd4a683c9d72f6111810b05d0764657ddb01b536dae753114975934f3124 |
| Publication page | ee4463e64a7e01635ddcce1de7a1d2053a021dad0325bc8706087cc0ab6f26eb |
| Manifest | b1abbde95c1c8264b4ad48146fde0894e9c90a2efb662d21a5b79e90daba1461 |
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 | JdaPndHKJSAycIu2CrcOPrs2KHo3RlaLA8LOx8qoWGvEdQFdiN/CWAe1uv2so9zPb6h899xiYBEDgjX6iglcAQ== |
| 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
| 2026-09-25T12:41:23.243060Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000089553observed ee4463e64a7e01635ddcce1de7a1d205...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-09-25T12:41:23.164160Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000089553/manifest.jsonobserved b1abbde95c1c8264b4ad48146fde0894...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-25T12:41:23.095370Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000089553/publication.mdobserved e2a9cd4a683c9d72f6111810b05d0764...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-25T12:41:23.020386Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000089553/publication.txtobserved c87d152de950bd2a2440c44d9fc3574b...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-23T16:41:44.719982Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000089553observed ee4463e64a7e01635ddcce1de7a1d205...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-23T16:41:44.645086Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000089553/manifest.jsonobserved b1abbde95c1c8264b4ad48146fde0894...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-23T16:41:44.595900Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000089553/publication.mdobserved e2a9cd4a683c9d72f6111810b05d0764...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-23T16:41:44.500818Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000089553/publication.txtobserved c87d152de950bd2a2440c44d9fc3574b...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 |
|---|