OT-2026-000033422
Publication integrity record
Foam pad vacuum gripper, pump fed, pulsed blow-off after 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-2026-000033422) never changes.
Identity and time
| Publication number | OT-2026-000033422 · never reused |
|---|---|
| Internal UUID | 01a0ae75-8980-7438-9c8b-46f788152c0f · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-17T08:22:13.649513Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000033422 |
| Status | PUBLIC |
Content hashes
| Canonical text | 1d81479d7042aacfa7b30049f8d74aeb9c66aacb6e5d11b9bdaeba5ec8358097 |
|---|---|
| Markdown | 361e7231077a1b30ea798edf8a24cf8294b0fefa4ac1d64da697170d030c3e1b |
| Publication page | 5b579b6012207641ea09f798668d2cb13cc06e176471afd69822a2360c0c429b |
| Manifest | 1b7a18489e71a16c86ffd71b654c1eba8a3bf7a479d5252894fe24a2b5da5004 |
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 | 1XIC0+rPM2Iw7bo0JrS3lJHW/Zpr51N13HD9GPhIBAc9vi90QV5CrnTsmcCPFrXHBJTRcMEKGoAwqHrVmy53Dw== |
| 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
| 2026-10-22T00:41:58.782144Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000033422observed 5b579b6012207641ea09f798668d2cb1...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-10-22T00:41:58.731713Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000033422/manifest.jsonobserved 1b7a18489e71a16c86ffd71b654c1eba...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-22T00:41:58.672077Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000033422/publication.mdobserved 361e7231077a1b30ea798edf8a24cf82...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-22T00:41:58.603372Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000033422/publication.txtobserved 1d81479d7042aacfa7b30049f8d74aeb...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-18T08:43:20.091519Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000033422observed 5b579b6012207641ea09f798668d2cb1...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-18T08:43:19.930856Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000033422/manifest.jsonobserved 1b7a18489e71a16c86ffd71b654c1eba...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-18T08:43:19.748046Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000033422/publication.mdobserved 361e7231077a1b30ea798edf8a24cf82...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-18T08:43:19.584915Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000033422/publication.txtobserved 1d81479d7042aacfa7b30049f8d74aeb...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 |
|---|