OT-2026-000052990
Publication integrity record
Foam pad vacuum gripper, pump fed, 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-2026-000052990) never changes.
Identity and time
| Publication number | OT-2026-000052990 · never reused |
|---|---|
| Internal UUID | 01a0ae84-a430-7a6b-9ad6-dfbf64d379e2 · 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-2026-000052990 |
| Status | PUBLIC |
Content hashes
| Canonical text | c751a3f63ffb8d92520cd4503c5948b23daee9b99ed589b4e91da6911a6b4ad3 |
|---|---|
| Markdown | d9624b830e1747ea87a5afca3c045ebacf33c19ccfbffeb7f42b23f6acf7386e |
| Publication page | 4cc04d78a37331263cb35af5e654aedd2b1cf4ad004e45940eb99ab229dddd05 |
| Manifest | 3d4eaac0f3b0cc126e4da132a4aca52ba038753c3e90b972d6bd420c73fba3b0 |
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 | neT5gPbf6QEpqGGclPX0dVSipX6FqPrhI6slCqFXy81cZxhU06QqC9wtP+YLKpzjYGDzfUi9Z37FT1SzmHwjDw== |
| 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
| 2026-10-03T00:41:10.507328Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000052990observed 4cc04d78a37331263cb35af5e654aedd...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-10-03T00:41:10.421995Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000052990/manifest.jsonobserved 3d4eaac0f3b0cc126e4da132a4aca52b...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-03T00:41:10.221362Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000052990/publication.mdobserved d9624b830e1747ea87a5afca3c045eba...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-03T00:41:10.131724Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000052990/publication.txtobserved c751a3f63ffb8d92520cd4503c5948b2...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-17T10:56:40.986959Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000052990observed 4cc04d78a37331263cb35af5e654aedd...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-17T10:56:40.969931Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000052990/manifest.jsonobserved 3d4eaac0f3b0cc126e4da132a4aca52b...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-17T10:56:40.952172Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000052990/publication.mdobserved d9624b830e1747ea87a5afca3c045eba...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-17T10:56:40.932485Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000052990/publication.txtobserved c751a3f63ffb8d92520cd4503c5948b2...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 |
|---|