OpenTechnical

OT-2026-000007074

Publication integrity record

Vacuum cup gripper, two outlet manifold, three stage ejector, vented after set down, polyurethane cups

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-2026-000007074) never changes.

Identity and time

Publication numberOT-2026-000007074 · never reused
Internal UUID01a0a971-abb3-77a5-a3a3-2dd26a5918a4 · UUIDv7, RFC 9562
Publication timestamp2026-09-16T08:59:54.166642Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000007074
StatusPUBLIC

Content hashes

Canonical text388263723400ee4d65d80ba4c7c5a3b47f22172861e013a00cbb42d1f8581862
Markdownab14b475d92ad3212c7b24375a2dfe7272833697b53b5e0d126f212382f613af
PDF
Publication page810c595e63b88bf45cc9acf82eb048d7b82215ade616ba158a0f25787dd2a728
Manifestf72100dac800d8cbff39131b3e754cb397ebe88851d3e14517e378d248354562

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
Signature7D/TVdelnnF3pu8ZtwEu4b75ZEoje3YeslCQZRxfwjmdM08GksodHaUblGrdmtx9ixEwbXdEBTEKHL7azjkYBw==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-16T09:07:03Z
batch OT-TS-2026-W38-014 · RFC 3161 token · inclusion proof
root 2354c19da800f8df297acf3cddd64d4d...

Independent retrieval

2026-09-16T09:00:04.425046ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000007074
observed 810c595e63b88bf45cc9acf82eb048d7...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T09:00:04.411516ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000007074/manifest.json
observed f72100dac800d8cbff39131b3e754cb3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T09:00:04.396486ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000007074/publication.md
observed ab14b475d92ad3212c7b24375a2dfe72...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T09:00:04.379859ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000007074/publication.txt
observed 388263723400ee4d65d80ba4c7c5a3b4...
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.