OpenTechnical

OT-2026-000090635

Publication integrity record

Two bellows cup vacuum gripper, two 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-2026-000090635) never changes.

Identity and time

Publication numberOT-2026-000090635 · never reused
Internal UUID01a0ae9c-7f30-72a1-ad89-f770f42ddf79 · 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-2026-000090635
StatusPUBLIC

Content hashes

Canonical textb67cb502b025a91a5d5be33183ee0f1dce6e96b78150fe1ca2e492ecb7484b15
Markdown0bca858b0a45579808963462fe10c9722556c5a4c51494edf026914e86e229a6
PDF
Publication page3d8d23ba1210b7ed6cb31f1d12e7ffed904e7d26651ea50bb22cd55c31a036e4
Manifestcd606dc924f20b2ac19b18db7f441d80bad298676f25494435d1ba14ff7445eb

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
Signature3M1uOXHk9CX2pq+KXccGmwnVZ425Li/KGDc0GWY2lywelv5/K2Jk8GCnESEDGThzI18aZ/fDKHJmQfhM3f8rAg==
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

2026-09-17T09:44:49.223100ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090635
observed 3d8d23ba1210b7ed6cb31f1d12e7ffed...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:49.204536ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090635/manifest.json
observed cd606dc924f20b2ac19b18db7f441d80...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:49.186578ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090635/publication.md
observed 0bca858b0a45579808963462fe10c972...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:49.167486ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090635/publication.txt
observed b67cb502b025a91a5d5be33183ee0f1d...
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.