OpenTechnical

OT-2026-000031593

Publication integrity record

Three cup vacuum gripper, three outlet manifold, common isolation valve, three stage ejector, pulsed blow-off after 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-2026-000031593) never changes.

Identity and time

Publication numberOT-2026-000031593 · never reused
Internal UUID01a0ae74-87af-75ed-9300-cf4876fd9bc2 · 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-2026-000031593
StatusPUBLIC

Content hashes

Canonical text4cb7a15ac5eeac6ac6782dac6fd6c181defd90549eee4d14ceb7d1c703ed1726
Markdowne0bd0043748352e5589a81a522d76b78aafe3e0c5e13b672689afda5bcb8e100
PDF
Publication page2f30570f697801f2b3b9f2fe512e17ac8c623ced141f2858653b3d392fad4051
Manifested68c11583ca21eca4f99ac4ca028f65d48d5028c89db7825e9189e58472d952

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
SignatureKnH+rLcrZkFFsanuUgHPUVyOIRhCSxxcaVkgybxAa1ok8ZiXxCUXQIPoVnxFvmWo4fE5rE5U7IdHRt8k5nCLBA==
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

2026-09-17T11:36:26.922798ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031593
observed 2f30570f697801f2b3b9f2fe512e17ac...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:36:26.905284ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031593/manifest.json
observed ed68c11583ca21eca4f99ac4ca028f65...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:36:26.886972ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031593/publication.md
observed e0bd0043748352e5589a81a522d76b78...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:36:26.869305ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031593/publication.txt
observed 4cb7a15ac5eeac6ac6782dac6fd6c181...
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.