OpenTechnical

OT-2026-000027967

Publication integrity record

Foam pad vacuum gripper, two zone face, per zone isolation, two stage ejector, 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-2026-000027967) never changes.

Identity and time

Publication numberOT-2026-000027967 · never reused
Internal UUID01a0ae72-a51f-7a53-a2c5-4d0db32cf1cd · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:19:04.113553Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000027967
StatusPUBLIC

Content hashes

Canonical textcf56f59b24420b0058fbdbd3ac8be5e98a658d167f844ba02c9115faba7424e8
Markdownfb26c478ed6fcab63adfe42c34d8f4deaf0c854c347d4d01085bc1184021307d
PDF
Publication page8c8bb19b437ac63a35b85a92fbc72ae44e146859a2940738bd65596632cc397c
Manifest4abc4329cc5aa92691730d0646d81da7f82f4142e33b100c2fe4ff5e92286536

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
SignaturevvjOvVmz2V0mC4pkCQz3TuwaBIyToN2IYrueoD2RdwlbkE/iWhQt5yKZqWEOOYDuJtsriSN3jJro7Gsgk0VqCQ==
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

2026-09-17T11:42:09.675004ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000027967
observed 8c8bb19b437ac63a35b85a92fbc72ae4...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:42:09.657926ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000027967/manifest.json
observed 4abc4329cc5aa92691730d0646d81da7...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:42:09.637976ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000027967/publication.md
observed fb26c478ed6fcab63adfe42c34d8f4de...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:42:09.621246ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000027967/publication.txt
observed cf56f59b24420b0058fbdbd3ac8be5e9...
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.