OpenTechnical

OT-2026-000005770

Publication integrity record

Vacuum cup gripper, three zone face, pump fed, contact triggered, rubber cups, oval form

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-2026-000005770) never changes.

Identity and time

Publication numberOT-2026-000005770 · never reused
Internal UUID01a0a944-44e1-76ec-8941-547dfbbe63e1 · UUIDv7, RFC 9562
Publication timestamp2026-09-16T08:10:18.723807Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000005770
StatusPUBLIC

Content hashes

Canonical textb614be708b1b677732357a25e41b8b8430af1674a2160b056451f451182d0064
Markdownfa8979f3802875c6690848b04fbda5594f55031ad8edc1892c4883fe066aa804
PDF
Publication page4fa4ed55584ff575c12122432936bf0ed5814808bee96f3ef5832e94942d7787
Manifest7181e689cccad30f1c65d81b856434d28142d4c095d493b74eee7204cd5db138

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
Signature2NKj17kUacE9ie28fJEdrlG4oByaN/BWCr/+9odKz/XHHTNAf6exn8ofKNW52JlxN54QIg+F2F5PasveeYu5BQ==
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

2026-09-16T08:20:34.909186ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005770
observed 4fa4ed55584ff575c12122432936bf0e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:20:34.894591ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005770/manifest.json
observed 7181e689cccad30f1c65d81b856434d2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:20:34.879693ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005770/publication.md
observed fa8979f3802875c6690848b04fbda559...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:20:34.740883ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005770/publication.txt
observed b614be708b1b677732357a25e41b8b84...
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.