OT-2026-000005204
Publication integrity record
Vacuum cup gripper, two stage ejector, contact triggered, vented after set down, silicone cups
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-2026-000005204) never changes.
Identity and time
| Publication number | OT-2026-000005204 · never reused |
|---|---|
| Internal UUID | 01a0a931-33cb-768a-ab28-9add8a37319d · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-16T07:49:29.166509Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000005204 |
| Status | PUBLIC |
Content hashes
| Canonical text | a8a437db2271d12c54e245e4baaf72a52a0de2b6843e9d917906b7d234f538d2 |
|---|---|
| Markdown | bfa724fa713baf7e2eaa28d28e8dfdb0c79d82d6aae4c985405724a1bc50bb51 |
| Publication page | 5dbb1ca44a03c9afa99f79d5812912f64449e0497634a8eb34cf0f49f4fbcde1 |
| Manifest | cc334ca22a2e88bd6dc170e06346a72bfb145ac1b8f582918dc3f0f2f76f8c1a |
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 | GURwmvAIQpotDmm76B7uuaOUElF+wiDiQwiO326/fyTn0FMhaVPS7zMmHW2UQX2HzU0qLCs45QJqPsYW8mosDw== |
| 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
| 2026-10-17T12:41:13.918371Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000005204observed 5dbb1ca44a03c9afa99f79d5812912f6...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-10-17T12:41:13.870306Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000005204/manifest.jsonobserved cc334ca22a2e88bd6dc170e06346a72b...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-17T12:41:13.823977Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000005204/publication.mdobserved bfa724fa713baf7e2eaa28d28e8dfdb0...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-17T12:41:13.643956Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000005204/publication.txtobserved a8a437db2271d12c54e245e4baaf72a5...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-23T16:41:06.712847Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000005204observed 5dbb1ca44a03c9afa99f79d5812912f6...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-23T16:41:06.664755Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000005204/manifest.jsonobserved cc334ca22a2e88bd6dc170e06346a72b...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-23T16:41:06.616513Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000005204/publication.mdobserved bfa724fa713baf7e2eaa28d28e8dfdb0...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-23T16:41:06.467149Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000005204/publication.txtobserved a8a437db2271d12c54e245e4baaf72a5...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 |
|---|