OpenTechnical

OT-2026-000045359

Publication integrity record

Two cup vacuum gripper, two zone face, pump fed, pressure sensor per zone, 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-2026-000045359) never changes.

Identity and time

Publication numberOT-2026-000045359 · never reused
Internal UUID01a0ae7c-f76b-7cb3-a165-e1d3aae796a4 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:30:20.545172Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000045359
StatusPUBLIC

Content hashes

Canonical text2e214acda3345e0ecdc3554c4d90e00ba7ee43d4163e0d6902a94e5a2425aa69
Markdownc4e32f8dc863198fafb7cde00728f18c9fcba3b266ef6cc167cfde75e6ae7880
PDF
Publication page7434cfd3c1f34edeb5cc6f3354734daeda4d3c6a0cf9ebc055d328e2e3d75378
Manifestfe6373286af018464144c7285099948e02e641febab402d2e73ad8ce75dab243

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
SignatureenNjBDgBEKIsjnj/mS9Hxw2pEjz2hbRSLjGo94LNYagCPoOaxPjhnIVtIK8BwoHRUHrm+4SanuCRcA+ksKWIBQ==
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

2026-09-17T11:10:37.577633ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000045359
observed 7434cfd3c1f34edeb5cc6f3354734dae...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:10:37.560082ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000045359/manifest.json
observed fe6373286af018464144c7285099948e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:10:37.544296ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000045359/publication.md
observed c4e32f8dc863198fafb7cde00728f18c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:10:37.525769ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000045359/publication.txt
observed 2e214acda3345e0ecdc3554c4d90e00b...
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.