OpenTechnical

OT-2026-000005701

Publication integrity record

Vacuum cup gripper, four zone face, per zone isolation, pump fed, vented after 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-2026-000005701) never changes.

Identity and time

Publication numberOT-2026-000005701 · never reused
Internal UUID01a0a941-ec37-7ea4-9f16-a22db867648c · UUIDv7, RFC 9562
Publication timestamp2026-09-16T08:07:44.953546Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000005701
StatusPUBLIC

Content hashes

Canonical text07f7e18183b0488590c44d57532380d711e42440901bd1bbe9e553be887bbfe0
Markdowne7868cc52f6bb56dbd896310f9bf6468e63b3e9127cbd1469bd599199f2b74b4
PDF
Publication page5f1e6a2f07be0a4274d2b34788701e978b51a954e5a09c60ee38736bc0c8a527
Manifest939be52792d631f22aa183044cddff2dc9051e6951247af5a7284fd315e4f29e

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
SignatureUzRYbaJoJUq5V88ORTQMU9PdjuRbQOCdfVVhJ8qrItRWBpyWkIBdcX36UZiR7+Dfo1i1dVo4AC/50TGWp7zeBw==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-16T08:27:03Z
batch OT-TS-2026-W38-012 · RFC 3161 token · inclusion proof
root dbe93cb6b2158496df2f60f3b6822537...

Independent retrieval

2026-09-16T08:10:10.124802ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005701
observed 5f1e6a2f07be0a4274d2b34788701e97...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:10:09.985739ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005701/manifest.json
observed 939be52792d631f22aa183044cddff2d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:10:09.971041ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005701/publication.md
observed e7868cc52f6bb56dbd896310f9bf6468...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:10:09.952694ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005701/publication.txt
observed 07f7e18183b0488590c44d57532380d7...
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.