OpenTechnical

OT-2026-000090280

Publication integrity record

Two bellows cup vacuum gripper, two 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-2026-000090280) never changes.

Identity and time

Publication numberOT-2026-000090280 · never reused
Internal UUID01a0ae9c-4290-735f-8e4c-42d54c903f5b · 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-2026-000090280
StatusPUBLIC

Content hashes

Canonical text797f55c59450970ef2f62c2cdf95337d07f7cbf3a5f2346b920643751609cd95
Markdown844922c4c1cd648b606b472eb599543ccc65bc6e4eae90a6b22411a2c73f49d3
PDF
Publication page373b630654e235f9f81702bd3a89822407c8aa7600fee18b3073e9041cc598ad
Manifestb52e679450c3f2c3dd22bef8ff8bdcd1d91eb7fb560c054487d7100701c72dab

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
Signature9Ew7mtK4wfq8hAFTHQOkb3tFeKK4wsu0T7+cgr97YLpZPVHfHNO1jGYTPiJhwbOeZlK/q+G+dr8H2YxvtDHkBw==
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

2026-09-17T09:46:21.823706ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090280
observed 373b630654e235f9f81702bd3a898224...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:46:21.804669ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090280/manifest.json
observed b52e679450c3f2c3dd22bef8ff8bdcd1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:46:21.785570ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090280/publication.md
observed 844922c4c1cd648b606b472eb599543c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:46:21.767098ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090280/publication.txt
observed 797f55c59450970ef2f62c2cdf95337d...
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.