OpenTechnical

OT-2026-000089920

Publication integrity record

Two bellows cup vacuum gripper, two zone face, six outlet manifold, single stage ejector, manifold pressure sensor, 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-2026-000089920) never changes.

Identity and time

Publication numberOT-2026-000089920 · never reused
Internal UUID01a0ae9c-428d-7cc3-8d92-4e952ca4eeda · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:04:31.390046Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000089920
StatusPUBLIC

Content hashes

Canonical text7c50dfaad2f1a4364a80b5fe7e4bb28218bd943f5e316670c532f40b4d054925
Markdown30f1df2eb729bcd5ddd200f7a72c4793861b55fa97150cad79780f2a8cab3ad4
PDF
Publication page4ce767834b01caa26efc61d43cccd77602aa1ca11b0f4fa54e6391edfbffc3db
Manifest263dd6cec717f5999c5c30055a8eb811f7633f18c3dd9dcc94f4b09e262d6188

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
Signature35sGYKzwQPs0T0OEf28Cjfseu+K61AmhS4IOi1prE8gZaEs0UG/BIsZNaOZH94DUg46VGPEhWySY/29Ag/nHBw==
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

2026-09-17T09:45:11.591349ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000089920
observed 4ce767834b01caa26efc61d43cccd776...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:45:11.571048ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000089920/manifest.json
observed 263dd6cec717f5999c5c30055a8eb811...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:45:11.551287ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000089920/publication.md
observed 30f1df2eb729bcd5ddd200f7a72c4793...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:45:11.531581ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000089920/publication.txt
observed 7c50dfaad2f1a4364a80b5fe7e4bb282...
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.