OpenTechnical

OT-2026-000091891

Publication integrity record

Two bellows cup vacuum gripper, two zone face, six outlet manifold, pump fed, pressure sensor per zone, sustained 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-2026-000091891) never changes.

Identity and time

Publication numberOT-2026-000091891 · never reused
Internal UUID01a0ae9d-43ba-7550-bedb-c3ad072f4731 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:05:37.256105Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000091891
StatusPUBLIC

Content hashes

Canonical textc4e5c2ccbac8726a5e0e38d60251569313d42816876d0d2948a16ca4a0af374c
Markdownd49d49ef4e785a4d3d58ce05af3c7d837778357b08b1053b5a423c6c55812011
PDF
Publication page2374a5d0df443554b310548d8144afc5facd1823b623530b9ae254e65f83864a
Manifest0831f8defc1e05585a407b7e333b8d2258ad59046cf4bbb60d5124e05fe4c8c1

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
Signaturea+5MZKI1rXH4GL/Jiqs69UDKWgj5X1kRB2BvoSvx3w81N1baFpk22UF2c7n5YkoAU9bNSo0KEZTQwTPpCiqTAw==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T09:07:03Z
batch OT-TS-2026-W38-022 · RFC 3161 token · inclusion proof
root 061e9ae86cc297cdce873398aaec3f72...

Independent retrieval

2026-09-17T09:42:49.554165ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091891
observed 2374a5d0df443554b310548d8144afc5...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:42:49.537617ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091891/manifest.json
observed 0831f8defc1e05585a407b7e333b8d22...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:42:49.519279ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091891/publication.md
observed d49d49ef4e785a4d3d58ce05af3c7d83...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:42:49.500517ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091891/publication.txt
observed c4e5c2ccbac8726a5e0e38d602515693...
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.