OpenTechnical

OT-2026-000007091

Publication integrity record

Vacuum cup gripper, per zone isolation, pump fed, vented before set down, polyurethane cups

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-2026-000007091) never changes.

Identity and time

Publication numberOT-2026-000007091 · never reused
Internal UUID01a0a972-632e-7958-8a4f-1822a9aa8a7d · UUIDv7, RFC 9562
Publication timestamp2026-09-16T09:00:41.136942Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000007091
StatusPUBLIC

Content hashes

Canonical text54a7227bf45a7b736ccebb4188d923af8d66cdca74ffc50edf94a46051507df4
Markdown42312f0c69266e98059a0ecbf85bfe37515e7b4e4dcc19cefc3d89d63098f78b
PDF
Publication pagecc6a55f2a97d1cde50d09c7c0a0094ee6708811dbc014b293cd3ae427c89a6f6
Manifestb9c4b012ce4c0c9a62627e9be7ea26f510b734b39260623c6f34c7bb15d5f427

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
SignatureL36u54t/gCqRuI4ear9qjiaWq7K+/0CE1UzKpMcBRh8TjWpMisFZIdXhDXpx6/eepR1NAvYVk4AelVKPG3MeCg==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-16T09:07:03Z
batch OT-TS-2026-W38-014 · RFC 3161 token · inclusion proof
root 2354c19da800f8df297acf3cddd64d4d...

Independent retrieval

2026-09-16T09:10:28.161103ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000007091
observed cc6a55f2a97d1cde50d09c7c0a0094ee...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T09:10:28.146599ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000007091/manifest.json
observed b9c4b012ce4c0c9a62627e9be7ea26f5...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T09:10:28.131276ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000007091/publication.md
observed 42312f0c69266e98059a0ecbf85bfe37...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T09:10:27.992875ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000007091/publication.txt
observed 54a7227bf45a7b736ccebb4188d923af...
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.