OpenTechnical

OT-2026-000031440

Publication integrity record

Single bellows cup vacuum gripper, single stage ejector, supply line pressure sensor, sustained 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-2026-000031440) never changes.

Identity and time

Publication numberOT-2026-000031440 · never reused
Internal UUID01a0ae74-87ad-7e0f-af69-79df91e1b2ca · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:21:07.653052Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000031440
StatusPUBLIC

Content hashes

Canonical text5a8c39ca9f41f190de62c3640d361031a09bb564923677d637a9a6fdea47b81a
Markdownbb0f01936755f146b2412a09b983b5a5483375c02e09c369e2722467bcb541da
PDF
Publication pagee11deaae1ad5187dcda5339a1fbc8619805241de8b8a9c495f4b801be30571a7
Manifesta9ab8b1cfa81e5609b5a299904e77a0911fd4897728ea80f7b82f81e742ec8d6

SHA-256, lowercase hex, over the exact bytes of each published file. Every figure is hashed individually in the manifest.

Manifest signature

AlgorithmEd25519 · key OT-SIGN-2026-01 · Verified
SignatureGnFKgXtB5fLXIAz6Qgn6+FpbRq50LYBYipwxTqsBItzXcQCqssdVJdIsfdQlgZ49bNUDKFNMQb2P7KrPMPAVDg==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:42:32Z
batch OT-TS-2026-W38-020 · RFC 3161 token · inclusion proof
root 7c99e0163c3f1d2dc0f1dec0442e2af7...

Independent retrieval

2026-09-17T11:36:09.789026ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031440
observed e11deaae1ad5187dcda5339a1fbc8619...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:36:09.772487ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031440/manifest.json
observed a9ab8b1cfa81e5609b5a299904e77a09...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:36:09.753591ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031440/publication.md
observed bb0f01936755f146b2412a09b983b5a5...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:36:09.735624ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031440/publication.txt
observed 5a8c39ca9f41f190de62c3640d361031...
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 archivePending 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

Custody packagePending Custody packages are produced weekly.