OpenTechnical

OT-2026-000007115

Publication integrity record

Vacuum cup gripper, two zone face, two 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-2026-000007115) never changes.

Identity and time

Publication numberOT-2026-000007115 · never reused
Internal UUID01a0a973-3919-70ad-a09f-7c7ac7c314f1 · UUIDv7, RFC 9562
Publication timestamp2026-09-16T09:01:35.900354Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000007115
StatusPUBLIC

Content hashes

Canonical text6a78ddd0ae1fe43dda589db3d7c4479fb0e7b6760b5986bfd017ee9c7c0b86a3
Markdownb8ed21e1d4b540c5d743c048477a1d4fd271a7a14b948e40e8b94e36860c8450
PDF
Publication page94a10f8dc97fdee5d4c9a3b3d3ee0fd8e654026a26d24ba3029a589cbfba3699
Manifest25af3cce7d92b306540177f293d67a9a54cc0ac40a5a5ba28afe4a08d013e65c

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
Signatureo6RSdMC7Rxmvo5wNl/dlHU+QMtQ8glb6GwLmJT8/ElWgc41heHqSX51XLaG69VxJyhCCJhigsfGkd7AWJgy7Ag==
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

2026-09-16T09:10:25.426055ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000007115
observed 94a10f8dc97fdee5d4c9a3b3d3ee0fd8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T09:10:25.412806ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000007115/manifest.json
observed 25af3cce7d92b306540177f293d67a9a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T09:10:25.398679ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000007115/publication.md
observed b8ed21e1d4b540c5d743c048477a1d4f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T09:10:25.382621ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000007115/publication.txt
observed 6a78ddd0ae1fe43dda589db3d7c4479f...
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.