OpenTechnical

OT-2026-000005916

Publication integrity record

Porous face vacuum gripper, three zone face, pump fed, contact triggered

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-2026-000005916) never changes.

Identity and time

Publication numberOT-2026-000005916 · never reused
Internal UUID01a0a949-1b18-7eea-9623-94c990aea564 · UUIDv7, RFC 9562
Publication timestamp2026-09-16T08:15:35.707197Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000005916
StatusPUBLIC

Content hashes

Canonical text762fe40f1d24e9a53cc35c067979699efb1592d2d534c62bc7316fa9f7384a77
Markdownb52cba13bd0d820315394d191bf3199024d71f23d81d6a4beb5844244e92e661
PDF
Publication page80dd6bd284c37753573aabb3d945f42d703b5d38a8c148972525a5d51685e70e
Manifest1c387564c3813455dde4b40c555041c1620531705a1b05338b1ec11ca764bb03

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
SignaturerhIZK3769B9KxM+MEeDGFh4+uPaAxutio05Fh+kI0F7aal+NeG4qPQhdHApV80tQularz6OFq3LmV8bb/YWVDg==
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

2026-09-16T08:20:17.907400ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005916
observed 80dd6bd284c37753573aabb3d945f42d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:20:17.890093ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005916/manifest.json
observed 1c387564c3813455dde4b40c555041c1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:20:17.873114ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005916/publication.md
observed b52cba13bd0d820315394d191bf31990...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:20:17.736296ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005916/publication.txt
observed 762fe40f1d24e9a53cc35c067979699e...
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.