OpenTechnical

OT-2026-000090734

Publication integrity record

Three bellows cup vacuum gripper, three zone face, per zone isolation, 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-2026-000090734) never changes.

Identity and time

Publication numberOT-2026-000090734 · never reused
Internal UUID01a0ae9c-7f31-7c4c-aece-e7f2abe891b6 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:04:46.997728Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000090734
StatusPUBLIC

Content hashes

Canonical texta4d9b72cbbb4fb0015a47b9c15224ff64972db9b65b48bcae583b7fbd12c402f
Markdowna7484d8800cb360609a378213652eb8c16a86a05927bb7dbdc264da718e0284c
PDF
Publication page8afad1e84c0f3bbe859eaf9c84bbf7ffbee213b7ce57957d5b1c4e3b8d7b035c
Manifestaee1f90b1e5d4be85fa5073a726bdde7f9871503f18927abb929c239a26fbc91

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
SignatureDd20WHGp7QtZN5UG63U2XW/lDFR6YjpT5huO0DQ/P6u5BOIYvW8KOVn2S5o+xG6bD8+eZFzDafLRK/rz9lWKAA==
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

2026-09-17T09:44:55.357738ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090734
observed 8afad1e84c0f3bbe859eaf9c84bbf7ff...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:55.339123ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090734/manifest.json
observed aee1f90b1e5d4be85fa5073a726bdde7...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:55.320301ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090734/publication.md
observed a7484d8800cb360609a378213652eb8c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:55.299476ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090734/publication.txt
observed a4d9b72cbbb4fb0015a47b9c15224ff6...
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.