OpenTechnical

OT-2026-000028450

Publication integrity record

Three pad foam vacuum gripper, three 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-2026-000028450) never changes.

Identity and time

Publication numberOT-2026-000028450 · never reused
Internal UUID01a0ae72-e2f6-74dc-8cf9-3e07c7e69031 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:19:19.949572Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000028450
StatusPUBLIC

Content hashes

Canonical texte1e1fd4dd639c88d8790fb80052fbc8c6ff71df1ee4c6c8ea0b49353a4e061c7
Markdown2216ccbe72eaeadb2bedf99bb2e356192abf1348ae6ea448f1a6d5d3368c025d
PDF
Publication page71d0b400927960356f9949f8ea14e7ad23a9811b2bc40b5598768bd55f9e4ba8
Manifestd76fdbe4495b1bce9f8f12f1759344a0123bfead5453dcb1db398187edd0ecde

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
Signature/ejgaj5f9TOb12wphFsnXiO+pNSyspea/xs0mNdPyaK1rssu6UNUdPlbbYAp6Jx9c6lp7YIr5ztFEaFR5ix0CA==
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

2026-09-17T11:40:35.333904ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028450
observed 71d0b400927960356f9949f8ea14e7ad...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:40:35.316035ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028450/manifest.json
observed d76fdbe4495b1bce9f8f12f1759344a0...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:40:35.296816ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028450/publication.md
observed 2216ccbe72eaeadb2bedf99bb2e35619...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:40:35.279985ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028450/publication.txt
observed e1e1fd4dd639c88d8790fb80052fbc8c...
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.