OpenTechnical

OT-2026-000090746

Publication integrity record

Foam pad vacuum gripper, three zone face, per zone isolation, pump fed, pressure sensor per zone, sustained blow-off before 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-2026-000090746) never changes.

Identity and time

Publication numberOT-2026-000090746 · never reused
Internal UUID01a0ae9c-7f31-7c18-9ba8-ac1eeeb77c01 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:04:46.997728Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000090746
StatusPUBLIC

Content hashes

Canonical text165285220027b56ec5c7f76d569191c1be744406bf53123bfc0d6886d793c1e6
Markdown36cc1be14977d5b1df88e9d978e1af7deb16e458377a5842d837fb10cd697590
PDF
Publication page74d2495956a2b9fe41989be6dcf04a8acbd6a29fc795fff999b5efce1a4e50c1
Manifest0922bc7f76a175f36a1ee2f2537aafef306fcc05deb4eb457370181e1bd511ef

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
SignatureVvIsqHovi+IepzbTyHWXw6cduMy9EDcLfiJLFKpuu8t4qa4PLA9kpXUbQoDpt4G0p/5UZd0qz6xUD8Ep3W21Cw==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T09:07:03Z
batch OT-TS-2026-W38-022 · RFC 3161 token · inclusion proof
root 061e9ae86cc297cdce873398aaec3f72...

Independent retrieval

2026-09-17T09:44:56.269025ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090746
observed 74d2495956a2b9fe41989be6dcf04a8a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:56.252248ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090746/manifest.json
observed 0922bc7f76a175f36a1ee2f2537aafef...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:56.234045ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090746/publication.md
observed 36cc1be14977d5b1df88e9d978e1af7d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:56.215912ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090746/publication.txt
observed 165285220027b56ec5c7f76d569191c1...
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.