OpenTechnical

OT-2026-000075701

Publication integrity record

Two bellows cup vacuum gripper, two zone face, pump fed, pressure sensor per zone, 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-2026-000075701) never changes.

Identity and time

Publication numberOT-2026-000075701 · never reused
Internal UUID01a0ae94-29fd-7ee5-8bc9-89d8ecffc6dd · 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-2026-000075701
StatusPUBLIC

Content hashes

Canonical text7eea9f9dcd4baef588e0773be9f362a48aa27198de3ee7bd8811bea7565d0aa9
Markdown65f71a7733bc8ad309ab5eb1f76e5288b509d6fbe356a9be09ba154c5554e7f5
PDF
Publication page31c3756001e60758bad5d5f12f76b1ffebefd6dde8ab9501e917ceba510761ed
Manifeste9381fca7bcac639b11cdef0c0de140933d290ed03be64851d7a9274dade09cd

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
Signature9peJe2kfanaGvk6bBR0ShaugL3jEjilzyJ1prkH0J24bG55s5lhjyTNwDZltbW+L6Wu+krODfehOikftPHJeAw==
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

2026-09-17T10:13:55.029004ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000075701
observed 31c3756001e60758bad5d5f12f76b1ff...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:13:55.008761ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000075701/manifest.json
observed e9381fca7bcac639b11cdef0c0de1409...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:13:54.990303ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000075701/publication.md
observed 65f71a7733bc8ad309ab5eb1f76e5288...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:13:54.970635ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000075701/publication.txt
observed 7eea9f9dcd4baef588e0773be9f362a4...
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.