OpenTechnical

OT-2026-000045715

Publication integrity record

Three cup vacuum gripper, three 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-2026-000045715) never changes.

Identity and time

Publication numberOT-2026-000045715 · never reused
Internal UUID01a0ae7d-8f04-77c5-b7f4-96709cbb910c · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:30:59.492045Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000045715
StatusPUBLIC

Content hashes

Canonical text73d156230802f3a0b61d67bb4ce76221ee5030ddfe0a1e9e88c11da43c882946
Markdownbeba34ee1cf281cbf94612db01c3e6b7248fb752dcf831a3516ca4fa5cc567b9
PDF
Publication pagefed521998f6c63089ccc7f532da1f1940054de53254d80e2e4f94698591921bd
Manifestf9cb1a9f9d925661a5078d459e8c1869464dd93405d846d0f76750f0e212afdd

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
SignatureCJ24cl0nsAWQLvpPfAxyuyUSVvNOmOZZe1QihOAYhiCnFuSNgppXPAvr5lebqGmgTyo3q17PpxcWG7AsrIbmAw==
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

2026-09-17T11:09:31.586899ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000045715
observed fed521998f6c63089ccc7f532da1f194...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:09:31.566963ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000045715/manifest.json
observed f9cb1a9f9d925661a5078d459e8c1869...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:09:31.530788ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000045715/publication.md
observed beba34ee1cf281cbf94612db01c3e6b7...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:09:31.497015ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000045715/publication.txt
observed 73d156230802f3a0b61d67bb4ce76221...
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.