OpenTechnical

OT-2026-000090350

Publication integrity record

Foam pad vacuum gripper, three zone face, single 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-2026-000090350) never changes.

Identity and time

Publication numberOT-2026-000090350 · never reused
Internal UUID01a0ae9c-7f2d-7d9a-98a7-08fdf5a6b89a · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:04:46.997728Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000090350
StatusPUBLIC

Content hashes

Canonical text97e059552a13d7cdae3a8c50628b6d0aa469f429db5d2941e2efb9c4a3fd74f0
Markdownf35607fae7009a3848fb4f989dfccb7fe40fd79ac3bc9b1afc9e13510778d4df
PDF
Publication page37e1d78f4b012588afe8c35f721bbf877194785e1375257b894d3b3a8364b600
Manifest556f72bd717ac956668df9ccf396192eab365805c7f5b78dbb51af15cc391fc4

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
SignatureOp5RdxPYCdVThFStFmzmSpEDghhmIX1JLPuVT6BIwBvOtK2agsIR+pPktwIevpRQAul3co7lGd6OT6flpT/UCw==
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

2026-09-17T09:44:26.818009ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090350
observed 37e1d78f4b012588afe8c35f721bbf87...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:26.797698ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090350/manifest.json
observed 556f72bd717ac956668df9ccf396192e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:26.779822ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090350/publication.md
observed f35607fae7009a3848fb4f989dfccb7f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:26.762212ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090350/publication.txt
observed 97e059552a13d7cdae3a8c50628b6d0a...
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.