OpenTechnical

OT-2026-000090563

Publication integrity record

Four cup vacuum gripper, four zone face, three stage ejector, 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-2026-000090563) never changes.

Identity and time

Publication numberOT-2026-000090563 · never reused
Internal UUID01a0ae9c-7f2f-7697-8d90-eb386806f8fd · 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-2026-000090563
StatusPUBLIC

Content hashes

Canonical text0901f64dcd926d52f80f78eec11b183a539c11cae47025b520c306ed230900fe
Markdownc444b99cbbcff0dfb032081d857b8d9f09d78e3d962dd6f781ba4597fb30070a
PDF
Publication page4681d311054b2f09cabf39b5b8082b719b53f3487863bc85bbef4daf88265c16
Manifest616adecf7f8d54347d69d329967f1f7e052ad45fc72496760fa1f256c1f7c971

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
SignaturedW/a2hVykfCSkW0pvWnAek4XI+thDcgcFmrxgalroWVkx7nL6x1b1fIl20gKZSLznm3Hq+Yv0wUfLMxLGaJBCw==
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

2026-09-17T09:44:44.412580ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090563
observed 4681d311054b2f09cabf39b5b8082b71...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:44.395307ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090563/manifest.json
observed 616adecf7f8d54347d69d329967f1f7e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:44.378017ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090563/publication.md
observed c444b99cbbcff0dfb032081d857b8d9f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:44.361392ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090563/publication.txt
observed 0901f64dcd926d52f80f78eec11b183a...
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.