OpenTechnical

OT-2026-000090224

Publication integrity record

Foam pad vacuum gripper, four zone face, six outlet manifold, pump fed, manifold pressure sensor, sustained blow-off before set-down

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-2026-000090224) never changes.

Identity and time

Publication numberOT-2026-000090224 · never reused
Internal UUID01a0ae9c-428f-7d67-aa8d-0d93a6aefbcb · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:04:31.390046Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000090224
StatusPUBLIC

Content hashes

Canonical texte3cd168de977205647e51bdfbbc8c533ea2f735929fbbab7c81f40d54f881821
Markdownfd48fbf88cbca0174d23f923dbb0a31b2dce3374789fae3097e03e4dff8db14a
PDF
Publication page30eb09ef858759bb12f0dbbd7aa80368b9f0f783fccbbb81b24d8141306343fc
Manifest12dc0449282a2ecfc4560e719bc9df41759403dd81cf48ad5991383901a1bc0f

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
Signaturez0ED4wAAD+XAcukky0WyJJt9cAWNvleYpNtuGIE2zeEwtcya0Frb8G0r48s0RRjbhdCp3gwDpgMjxXTtgsE5AQ==
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

2026-09-17T09:46:18.227804ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090224
observed 30eb09ef858759bb12f0dbbd7aa80368...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:46:18.211160ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090224/manifest.json
observed 12dc0449282a2ecfc4560e719bc9df41...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:46:18.194656ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090224/publication.md
observed fd48fbf88cbca0174d23f923dbb0a31b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:46:18.177857ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090224/publication.txt
observed e3cd168de977205647e51bdfbbc8c533...
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.