OT-2026-000019915
Publication integrity record
Four bellows cup vacuum gripper, four zone face, single stage ejector, pulsed 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-2026-000019915) never changes.
Identity and time
| Publication number | OT-2026-000019915 · never reused |
|---|---|
| Internal UUID | 01a0ae6f-1fb7-7e9a-a523-334c35670dab · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-17T08:15:13.354643Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000019915 |
| Status | PUBLIC |
Content hashes
| Canonical text | e47d2885f9556262c11254d2e120ca61017356ff3b86b659712fd0a5f715f8d1 |
|---|---|
| Markdown | 357d9e407d77790f505be9050d8d745b920ccd96d804a6695126e60681b6e90e |
| Publication page | c36bdb4d04d9204ae38f04a6c79da0b1224e5fb6d10381486599328535d9574f |
| Manifest | bff57a54e16a36271cece40ec4eff6ed756a07c538e81459ed827f3766d27960 |
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 | h3xXmvIpDpGupjskAzvHQFIVlxxHBrfCZrNi71GFwn2qADqZaeFKjd2oT9h1HGMSMcCBxQXghgQGq+8nW+GSBQ== |
| 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
| 2026-10-12T04:23:53.246149Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000019915observed c36bdb4d04d9204ae38f04a6c79da0b1...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-10-12T04:23:53.215893Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000019915/manifest.jsonobserved bff57a54e16a36271cece40ec4eff6ed...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-10-12T04:23:53.199870Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000019915/publication.mdobserved 357d9e407d77790f505be9050d8d745b...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-10-12T04:23:53.146154Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000019915/publication.txtobserved e47d2885f9556262c11254d2e120ca61...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-10-10T16:41:48.405697Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000019915observed c36bdb4d04d9204ae38f04a6c79da0b1...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-10T16:41:48.331692Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000019915/manifest.jsonobserved bff57a54e16a36271cece40ec4eff6ed...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-10T16:41:48.247973Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000019915/publication.mdobserved 357d9e407d77790f505be9050d8d745b...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-10T16:41:48.159365Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000019915/publication.txtobserved e47d2885f9556262c11254d2e120ca61...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 |
|---|