OT-2026-000052994
Publication integrity record
Foam pad vacuum gripper, pump fed, vented 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-2026-000052994) never changes.
Identity and time
| Publication number | OT-2026-000052994 · never reused |
|---|---|
| Internal UUID | 01a0ae84-a430-7efa-877b-ed13feb9389a · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-17T08:38:43.524202Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000052994 |
| Status | PUBLIC |
Content hashes
| Canonical text | f844288240dbed721c94ba357dc7a9e8397f5a957e30f8db26c2a095ac13616d |
|---|---|
| Markdown | 07fbe8c7ea11b3b30cfb62712bbcced42028ece97a6dd6dcae154c4349623ab2 |
| Publication page | 9ed857e6ebed37aa95a3240d9d82e67460945f50fc849076675b731addd86b16 |
| Manifest | f6b0f9e53e312003bf251d05b0e8e96b8768e97e312e9388ff486e9c63a7cf61 |
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 | +UH+/5xohjagS9u30CCcZBVZsJu8hoJOZosZXsSQ6aQxiM7dEif2KyHPxwT5AHQC467vtSB+rwE8UROi9CFFCw== |
| 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
| 2026-10-08T00:41:48.630145Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000052994observed 9ed857e6ebed37aa95a3240d9d82e674...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-10-08T00:41:48.512701Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000052994/manifest.jsonobserved f6b0f9e53e312003bf251d05b0e8e96b...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-08T00:41:48.405364Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000052994/publication.mdobserved 07fbe8c7ea11b3b30cfb62712bbcced4...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-08T00:41:48.279411Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000052994/publication.txtobserved f844288240dbed721c94ba357dc7a9e8...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-25T04:23:30.301598Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000052994observed 9ed857e6ebed37aa95a3240d9d82e674...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-25T04:23:30.284787Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000052994/manifest.jsonobserved f6b0f9e53e312003bf251d05b0e8e96b...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-25T04:23:30.268874Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000052994/publication.mdobserved 07fbe8c7ea11b3b30cfb62712bbcced4...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-25T04:23:30.193610Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000052994/publication.txtobserved f844288240dbed721c94ba357dc7a9e8...fetched by instance-3.rotem.ai from 34.69.0.72, 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 |
|---|