OpenTechnical

OT-2026-000075723

Publication integrity record

Foam pad vacuum gripper, two zone face, pump fed, pressure sensor per zone, 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-2026-000075723) never changes.

Identity and time

Publication numberOT-2026-000075723 · never reused
Internal UUID01a0ae94-29fd-7303-8669-9655746337f4 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:55:40.814795Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000075723
StatusPUBLIC

Content hashes

Canonical textde575de87746eeebec853c5ba2410305d7b5e90978794eb570ef901827bdb0ea
Markdownefb6ab4ae4455c2adde6d2c1b36342715fa25bd137713b54b8096a2458357ab2
PDF
Publication page185ddef50a3f372886ccdf1a30f2f8766affc5571dea829309d65d699fd6615d
Manifest5d4809c2262d0520d184ee4d6ed31c36c555f0871d37246c0ade3d9b745ed5f2

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
SignatureMjtEx3tZPWpCLD2m6v92MB7pUb5VL9MrwjKrzqUTl7cyFPdSnHOZ03FyBvQ6znq/0dt16G//93anFSpfqVT+BA==
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

2026-09-17T10:13:59.967267ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000075723
observed 185ddef50a3f372886ccdf1a30f2f876...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:13:59.947703ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000075723/manifest.json
observed 5d4809c2262d0520d184ee4d6ed31c36...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:13:59.549973ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000075723/publication.md
observed efb6ab4ae4455c2adde6d2c1b3634271...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:13:59.529915ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000075723/publication.txt
observed de575de87746eeebec853c5ba2410305...
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.