OpenTechnical

OT-2026-000046575

Publication integrity record

Foam pad vacuum gripper, two zone face, per zone isolation, 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-2026-000046575) never changes.

Identity and time

Publication numberOT-2026-000046575 · never reused
Internal UUID01a0ae7e-57dd-7dd7-86a9-9e2f3d00a7bc · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:31:51.003526Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000046575
StatusPUBLIC

Content hashes

Canonical text3eadc08c80449d98afd8a82331d7cb8b50a3cb7712a00681bc7073320c1c3e56
Markdownc74e8fc5e4e03359a55db158c4fb2ea29aafe946286c0ed0817c02d677c54ea0
PDF
Publication page7d9340338a80323ea93b59b44798164f9945c3cd894b42b0fa172bd36d59794d
Manifest82c25987e1488d5f8028896cbf69441518b3bd2fbd58faad692cb683cadf1bf3

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
SignatureSG5SBA8CXSbx58k3q7uia78Ydvt+NoAxavzpv533LJMyKzj8c6ml9kX5GC7+qYTqyUBq6oDOl1B1P6NjEsnZBA==
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

2026-09-17T11:08:38.615450ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000046575
observed 7d9340338a80323ea93b59b44798164f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:08:38.596392ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000046575/manifest.json
observed 82c25987e1488d5f8028896cbf694415...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:08:38.577723ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000046575/publication.md
observed c74e8fc5e4e03359a55db158c4fb2ea2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:08:38.560081ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000046575/publication.txt
observed 3eadc08c80449d98afd8a82331d7cb8b...
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.