OpenTechnical

OT-2026-000019375

Publication integrity record

Foam pad vacuum gripper, two zone face, plant vacuum fed, pulsed blow-off before set-down

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-2026-000019375) never changes.

Identity and time

Publication numberOT-2026-000019375 · never reused
Internal UUID01a0ae6e-f392-7eed-b121-8ae69829fed7 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:15:02.050431Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000019375
StatusPUBLIC

Content hashes

Canonical texted273463db69176b258080bd8d230e45c94467695812c24490c775297deba96d
Markdown2d41f2f500ca74f0f828c426c97e44b425a7bf108d5e9cff34cfeab0191e80f1
PDF
Publication page3137a5f1604fc5ab8f523f17250d1891cae7ea0eac10517a7fa09cf110435810
Manifesta31afd787433d4e3d667ac829c7b33eabd132ae84b1318448a30930092604864

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
Signatureo0e3gPXH1fIbFl0XI9Vys1WtjPBkehZxFgtIBHMZHHDiux77WdapAND0PVlXxDl0FQ5YGH2ZqpVO8hg7dU2ZCQ==
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

2026-09-17T11:58:45.497793ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000019375
observed 3137a5f1604fc5ab8f523f17250d1891...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:58:45.478618ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000019375/manifest.json
observed a31afd787433d4e3d667ac829c7b33ea...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:58:45.460023ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000019375/publication.md
observed 2d41f2f500ca74f0f828c426c97e44b4...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:58:45.442137ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000019375/publication.txt
observed ed273463db69176b258080bd8d230e45...
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.