OpenTechnical

OT-2026-000013195

Publication integrity record

Two bellows cup vacuum gripper, two zone face, per zone isolation, pump fed, pulsed 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-2026-000013195) never changes.

Identity and time

Publication numberOT-2026-000013195 · never reused
Internal UUID01a0ae6d-6fc8-7973-8ae6-9fa7a2fcdb10 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:13:22.837188Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000013195
StatusPUBLIC

Content hashes

Canonical text6e336c6a20e45db7882bc243b65fb5d01086d92a47d8bca54d31d22933cf1888
Markdown6c392d6e681fb444e7203d636680fbb5f607f2d7ab7bd55c57a6dcd83d48d0ce
PDF
Publication page7b8139c85814dcd6603eeb70bd720d1a1958bf00df79d9e83895ac692f88a5a0
Manifest41bfc02aa1381021ab2dc0e9d41b34bd6b366696e69375d5059e5030b943c31f

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
Signatureuzq23k91OQIul7M8mhtlX1TSUthXCv/sU737oBHbYhP5tgmAx7PyC5yPdo/h4j1OzxqW0nSJ/WUBLSMDDw0TCw==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:42:32Z
batch OT-TS-2026-W38-020 · RFC 3161 token · inclusion proof
root 7c99e0163c3f1d2dc0f1dec0442e2af7...

Independent retrieval

2026-09-17T12:09:34.700630ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013195
observed 7b8139c85814dcd6603eeb70bd720d1a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:09:34.683729ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013195/manifest.json
observed 41bfc02aa1381021ab2dc0e9d41b34bd...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:09:34.664296ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013195/publication.md
observed 6c392d6e681fb444e7203d636680fbb5...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:09:34.647151ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013195/publication.txt
observed 6e336c6a20e45db7882bc243b65fb5d0...
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.