OpenTechnical

OT-2026-000091489

Publication integrity record

Two bellows cup vacuum gripper, two zone face, four outlet manifold, single 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-2026-000091489) never changes.

Identity and time

Publication numberOT-2026-000091489 · never reused
Internal UUID01a0ae9c-f16d-7a7f-a27f-ce103c88692c · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:05:16.158740Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000091489
StatusPUBLIC

Content hashes

Canonical text409c82ef00288389a7dd0d3d057a68dde4fc5f4289068677a57a0dd300689c09
Markdowned46bb4d5f591efe45252c62b80bf7649e67bac523568d6de764367ffbd1fd28
PDF
Publication page82828a19c1420a71ca0998bcf43c1fb2b7c4430d8461e21a9e2a1a4f977f83fb
Manifest7954d9091f179860cc62799af3240574b43683accd4a370c341e85ef251c0890

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
Signature14lbiyoVZ5ADuDZj7bH/S2IpCaPSbHcZ5ESBvN5I6GZ+dYa6u33U47wTfQJckd/bGW7isCU6HW++HukdFIgXBg==
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

2026-09-17T09:43:44.681803ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091489
observed 82828a19c1420a71ca0998bcf43c1fb2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:43:44.664627ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091489/manifest.json
observed 7954d9091f179860cc62799af3240574...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:43:44.647735ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091489/publication.md
observed ed46bb4d5f591efe45252c62b80bf764...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:43:44.629167ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091489/publication.txt
observed 409c82ef00288389a7dd0d3d057a68dd...
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.