OpenTechnical

OT-2026-000081049

Publication integrity record

Foam pad vacuum gripper, four zone face, common isolation valve, single stage ejector, 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-2026-000081049) never changes.

Identity and time

Publication numberOT-2026-000081049 · never reused
Internal UUID01a0ae96-b976-7bd3-8cf6-581203c7ee8d · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:58:28.739380Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000081049
StatusPUBLIC

Content hashes

Canonical texta726bed54c8cd8c18b56106fad9efed1a4d655ab8fb7950e2ed67dfbc235c4b7
Markdownc52c8f8cc9e0f28f0c3f619998e631a75bac774a5de665ef63e022ab8673cbc8
PDF
Publication page05044defc18c086a13e23fbbcce8519dc024404dc7101110b151740cb536e1c5
Manifest591209714ebe1e5146d9eac5b0ce6366bbfc1fa225c07e6ab327e6d5fc0c0282

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
Signatureiq5vB6n2SeNjL8g0ECOm0JR6IGghn+Y10moM0hlhXT7xvy8/htE+9JPrFCS5GX5KQZSjHXYnvxEE8x3Uxm7uAA==
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

2026-09-17T10:02:20.571078ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081049
observed 05044defc18c086a13e23fbbcce8519d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:02:20.552098ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081049/manifest.json
observed 591209714ebe1e5146d9eac5b0ce6366...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:02:20.533548ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081049/publication.md
observed c52c8f8cc9e0f28f0c3f619998e631a7...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:02:20.515527ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081049/publication.txt
observed a726bed54c8cd8c18b56106fad9efed1...
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.