OpenTechnical

OT-2026-000074820

Publication integrity record

Six bellows cup vacuum gripper, six outlet manifold, common isolation valve, pump fed, supply line pressure sensor, vented 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-2026-000074820) never changes.

Identity and time

Publication numberOT-2026-000074820 · never reused
Internal UUID01a0ae93-ac2c-76bf-87a5-b7a21400d8dd · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:55:08.693295Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000074820
StatusPUBLIC

Content hashes

Canonical text6c23e7981ba4d66341844e72cbb7de204e7fd1fb8a40157ef9ae82310b99c725
Markdownfdf8ec0f996bc1442b2503c639b24438f6cdc2d5eac4af407d870aa4b08f97c5
PDF
Publication page11c608e1d847db6cee379476e2f75a9424115a42bee551565dec232312141a17
Manifestac9d2ffda1514c790e2bbd83f05b2d442ea1b2e7fa5e6a0b86eae15cc2fe009b

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
Signature0RNxRJaHPzSq0krxswwp17jclIl/A8DJj01wgkHMd2lKZ6hsSJD8qziYGTe3nveELlu8euMJwhGonB7jhtE6CQ==
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

2026-09-17T10:18:31.737120ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074820
observed 11c608e1d847db6cee379476e2f75a94...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:18:31.719407ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074820/manifest.json
observed ac9d2ffda1514c790e2bbd83f05b2d44...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:18:31.702507ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074820/publication.md
observed fdf8ec0f996bc1442b2503c639b24438...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:18:31.683861ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074820/publication.txt
observed 6c23e7981ba4d66341844e72cbb7de20...
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.