OpenTechnical

OT-2026-000091898

Publication integrity record

Foam pad vacuum gripper, two zone face, six outlet manifold, pump fed, 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-2026-000091898) never changes.

Identity and time

Publication numberOT-2026-000091898 · never reused
Internal UUID01a0ae9d-43ba-7ec1-8a0e-6451d7e8dcb4 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:05:37.256105Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000091898
StatusPUBLIC

Content hashes

Canonical text96409ec4ae649713808ef5d9c346fe88ea6403d5b80206b1d006be7b6e857280
Markdowndb823b24c8f5d17643f18350a7c1bc65d7724f4110ee9a5826fb82cd4807d86c
PDF
Publication page81376e9db1834c534d374485ac52d082d7018395d92ab701adeb70ef91f9c707
Manifestd00be79bceae58678d79b567ffe7bfa96269bd5896263abbdd9b4d918602e79a

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
SignatureoPUHV4pk0PnaaVNEcZd5rcXenFYC0dSByC96WY4YFA8eJOW2ZiFi5OaaxdqZJSFy9WxPDkEZIOqUvON2cJg1Ag==
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

2026-09-17T09:42:50.087662ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091898
observed 81376e9db1834c534d374485ac52d082...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:42:50.071185ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091898/manifest.json
observed d00be79bceae58678d79b567ffe7bfa9...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:42:50.053928ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091898/publication.md
observed db823b24c8f5d17643f18350a7c1bc65...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:42:50.038043ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091898/publication.txt
observed 96409ec4ae649713808ef5d9c346fe88...
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.