OpenTechnical

OT-2026-000090356

Publication integrity record

Three cup 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-2026-000090356) never changes.

Identity and time

Publication numberOT-2026-000090356 · never reused
Internal UUID01a0ae9c-7f2d-7ea6-bbde-f200ba475c3b · 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-2026-000090356
StatusPUBLIC

Content hashes

Canonical text12ad9bb8c1ecc9d20355a1969261a8d186ee934650767ccc8ebb5c9c89eb9d8e
Markdown1cdad7f2a1dc7e9a992ec22fbcfb8c2ae503ed5a71c8a247405ff1aabbc79fdf
PDF
Publication page1b410f788b472c9af7b680e82a881c7d06c6604a31a8ce102f9eb7bcc6e64f2b
Manifesta9cf2608606f2054d785e85a97dd28932eef286f41b83a144006f017b0fa4aa3

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
SignatureU0WOKiKBSUeBJAS4WWsTTfM5UPZAOVFdb4yblADsSnBy+y4Yvc1mC/3lgc8042J8M1mtBL9lh9HZ4986AyfcBw==
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

2026-09-17T09:44:27.291447ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090356
observed 1b410f788b472c9af7b680e82a881c7d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:27.273513ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090356/manifest.json
observed a9cf2608606f2054d785e85a97dd2893...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:27.254039ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090356/publication.md
observed 1cdad7f2a1dc7e9a992ec22fbcfb8c2a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:27.235206ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090356/publication.txt
observed 12ad9bb8c1ecc9d20355a1969261a8d1...
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.