OpenTechnical

OT-2026-000087899

Publication integrity record

Foam pad vacuum gripper, four zone face, per zone isolation, two stage ejector, supply line pressure sensor, 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-2026-000087899) never changes.

Identity and time

Publication numberOT-2026-000087899 · never reused
Internal UUID01a0ae9b-1aa5-7227-9394-bcc35d937ba6 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:03:15.638297Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000087899
StatusPUBLIC

Content hashes

Canonical textf2f0d2d66fdcd945388ed9bfa211352b0f69ea522214925517a35e0bce97c114
Markdownc2445d1fd7170489336c2c5c9dda1fb153e5588df1dd1d5bb76d83ad768397ca
PDF
Publication pagea2c4fbbdb1583d826094a5a051fbef98dc374a6d646d7d7ffa1acdd47a7d2a92
Manifest5b6367292953a29358f09972f4a46df5788fb45f04df02bbecce7fd493ed04c9

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
SignatureksDbMT3Bs/r3WXWa5Ymf9SpGnjeC2Riqx7PSki7NgKa6rn7XmPMKBVy3M0FkknsAkMfnntwqX7gqJr6m+2Y7Bw==
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

2026-09-17T09:49:10.576949ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087899
observed a2c4fbbdb1583d826094a5a051fbef98...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:49:10.559422ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087899/manifest.json
observed 5b6367292953a29358f09972f4a46df5...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:49:10.540673ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087899/publication.md
observed c2445d1fd7170489336c2c5c9dda1fb1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:49:10.521849ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087899/publication.txt
observed f2f0d2d66fdcd945388ed9bfa211352b...
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.