OpenTechnical

OT-2026-000090723

Publication integrity record

Foam pad vacuum gripper, three zone face, per zone isolation, plant vacuum fed, pressure sensor per zone, sustained blow-off before set-down, on a tool changer

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-2026-000090723) never changes.

Identity and time

Publication numberOT-2026-000090723 · never reused
Internal UUID01a0ae9c-7f31-7fb6-95c4-626d4beb0e83 · 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-2026-000090723
StatusPUBLIC

Content hashes

Canonical text53f2e322d004d4ad598dc53ef8d1df06c9999233b89d62b989c926946d78100d
Markdown57d4ab84c95f0ee08aae87b13f93142d392ecd043668b64185c42c9e8351c472
PDF
Publication pagec7cce269d101241353fb23b88f5c761e2df26a84709599c53ab0afb5ac60c235
Manifest232368cc8bbcc4f2feff9e70344921178f0dcebde95fb4939d87d1a7ecfee010

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
Signature3eN9tOP6eNEMkTB6p7SFBDY/Ouq+aq38Ia82rgiDNvoq0K757hhl30HNU8e9gosA820VWFrqlzdk9saJETW5DQ==
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

2026-09-17T09:44:22.677877ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090723
observed c7cce269d101241353fb23b88f5c761e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:22.662440ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090723/manifest.json
observed 232368cc8bbcc4f2feff9e7034492117...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:22.645399ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090723/publication.md
observed 57d4ab84c95f0ee08aae87b13f93142d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:22.627469ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090723/publication.txt
observed 53f2e322d004d4ad598dc53ef8d1df06...
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.